Fiat 1.4 Liter Multiair Turbo Build, plus a Battleship!

[@sarcastic.not.unkind]

I've always found Whiskey and cars to be an excellent combination

[@burtonporter8437]

It’s always interesting to listen to passionate people- no matter the platform

[@whiskeytangosierra6]

If anyone doubted you being an engineer (no me) that bit about "went ahead and broke the other thrust bearing because I wanted to see how strong it was" should remove all doubt. Love you videos Greg, keep up the good work.

[@SarahnTuned]

I have no clue how I ended up here, I don't even own a 500 or 124 but this video was super informative!

[@BlueTriangleRecords]

@SarahnTuned And your channel is fantastic as well! You and Greg take up a fair bit of my internet bandwidth... ☺ @GregsAirplanesandAutomobiles Thank you for the fantastic run-through of the MultiAir's features. Our '17 Abarth 500 is stock currently and it is great to see the great engineering put into it!

[@billbolton]

Thanks Greg, I came for the planes, stayed for the cars and got a bonus battleship!

[@Palaemon44]

Water-methanol injection. Greg achieves his dream of driving an ME109. Next step: Greg produces a chart showing projected horsepower of his modified FIAT engine up to altitudes of 30,000 feet, and explains why he stayed with turbocharging versus putting together a two-speed two-stage mechanical supercharger. Being a former FIAT owner and former Zoomie is one reason I like this channel. 😅

[@ferrofilos]

Oh so you are a fiat fan!! Nice, ivegot a 125 1.6 dohc 8valve station wagon from 1977, and as usual it has the floor and the weelwelds rusted , i will be a cuple of years to bring her back to stock but it is worth the pain, time and money. Cheets from argentina!

[@anthonyxuereb792]

A nice piece of Italian engineering, love the metal inserts, never seen it before.

[@billtimmons7071]

What impresses me is the narrow thickness between the cylinder liners. Back in the day, the small blocks took some really good machining to get a true small block and get good bore by allowing the cylinders close proximity (thin wall) Your video shows the machining tolerances. I used to work for EMD and the two - stroke diesels needed a dedicated oil "squirter" to squirt oil to the underside of the pistons for cooling. I liked the part of your video were you show that the "squirters".

[@BrodeyDoverosx]

That’s actually a lot of walk thickness and especially so given that the block is mostly closed

[@varmastiko2908]

These FIAT engines also have those oil squirters. It's pretty much an industry standard at this point due to the heat loads of combining high boost pressures with high base compression ratio.

[@chrischiampo7647]

Engine Building Is One Of My Favorite Jobs as an Automotive & Truck Technician of 26 Years 😊😎🧰👨🏼‍🔧 Torque To Yield Bolts AKA Stretch Bolts Always Get Replaced Thanks Greg I Never Worked on a Fiat Newer Than a 1970’s Very Interesting Engine Design

[@greghorton803]

Or... is the correct terminology for the tightening of the main journal bolts "Plastic Region Angle Method"?

[@chrischiampo7647]

Greg Horton I Very Well Could Be Since Most Require You To Torque To a Certain Spec Then Go an Additional 45-90deg 👍🏼

[@GregsAirplanesandAutomobiles]

Hi Chris, I'm right with you on always replacing that type of bolts, but I was just reporting what the manual says. In this case, I'm replacing them.

[@dannelson4843]

So refreshing to watch someone who knows about engines and mechanics. I see so many of these videos that portray people who bolt on after market engine parts as subject matter expert mechanics. Good content, keep it coming Greg.

[@libraeotequever3pointoh95]

The last 1.4 liter engine that I drove was in a 1979 Plymouth Champ. A.K.A. re-badged Mitsubishi Mirage 3-door hatchback with a manual transmission equipped with two shift sticks. One for hi-low range, the other for 4-speeds + reverse. It had less horsepower than your Fiat, too. Still was fun to drive, though. :-)

[@philjowett3760]

Great work as always Greg. I'm really pleased to see more ways to develop safe power coming soon to the 124. I'm watching with interest, as I'll be needing those pistons soon, as I'm running a lot of boost with the Vaitrix et. and it's addictive!

[@GregsAirplanesandAutomobiles]

Thanks Philip. I'm pretty excited about this. Assuming it all works out we will get those pistons and the head up for sale.

[@DiegoFernandez-xc9ew]

I find everything you do so interesting! This video is almost 30 minutes long and it seemed like 10 or 15 minutes, and the information is top notch, I really wouldn't mind more videos like this...

[@WarblesOnALot]

G'day Greg, Yay Team ! Nice job, the rebuild and the Video. In 1948 my father had the only Offset-Chuck Crankshaft Grinder for 250 miles around, in Regional NSW, Oz (!) ; and also... I drove a 124 a few times back in the late 1970s when working at a Secondhand Car Dealer's Business..., so I can sort of underconstumble the plot, herewithin. A cousin of mine used to own & drive a 124, so very vigorously that he broke his Clutch-Pedal Mounting - by excessively fatiguing the Firewall with his strenuosity..., while commuting in Sydney Traffic. He was also noted for having run a City Bus off the Road, in his 124 ; because it had "cut him off in traffic"..., he had Anger Management & Acting-Out type of "Issues" (considered in hindsight). In 1985 he died while motorcycling in Lunchtime City Traffic..., a Limousine turned accross in front of him - it's back wheel popped his Skull.... Segue ***** I don't expect you to learn anything from the content - but you may enjoy seeing, "Sopwith Camel Mystery..., According To Norman Macmillan..." Just(ifiably ?) going by your Thumbnail..., kinda thing (?) ! I uploaded it today. Such is Life. Have a good one... ;-p Ciao !

[@GregsAirplanesandAutomobiles]

HI Warbles, I'm watching your Sopwith video right now.

[@nrodulfo]

What a great video! I have a 2012 Fiat 500 Sport which my wife simply refuses to part ways with, it has a bad oil leak, it was leaking a little form the main seal area and after someone replaced the timing belt and some valves in it now it has a much worse leak coming from the timing belt cover. I really would like o rebuild this engine and kind of “restore” this car for my wife but watching your videos makes me doubt my ability to rebuild the engine myself.

[@PeterPangea]

Did you end up figuring out what happened with the oil leak? I have a very similar issue on my 500 sport

[@neoconshooter]

Again I love it! Over the years I owned a 1969 124 Sport Coupe' and two 124 Sport Spiders back in the early '70s! I sold the Fiats to put a down stroke on the Mustang in Germany and went through two other Mustangs before I got into Trans Ams and then big block crate motor Camaros. I Love the idea that you go way back to the crazy person years!

[@mlynch001]

Built like a motorcycle engine. I also have an 82 2000 Spider. So I’m a FIAT guy myself. I’ve been looking at this video for a long time, finally got a chance to take a look.

[@aussiebloke609]

You're absolutely right about some manufacturers making use of small gains from boring out cylinders. My very first car was a '70 VG Valiant Pacer (Australian) with the 245 cube straight 6 hemi...only the Pacer actually was bored and used .060" oversized pistons so it would just barely make it to 250 c.i. Was such a surprise to me when I found that this is how they came from the factory, just for that tiny bit more displacement...but evidently, it was worth it to them at the time. :-)

[@bryanjacobs5897]

Man I’m a master tech working for a gm dealership and an avid Il2 player. Your channel hits all the buttons for me thanks a lot for the great content!!!

[@GregsAirplanesandAutomobiles]

I'm glad you're here.

[@RacerX-124]

Thank you for sharing! These are fascinating little engines, and they sound really good too!

[@jamesroeber]

Greg, you are a dude, your efforts are very much appreciatted

[@knb9342]

I'm not sure what it's like for those, but us classic vw or porche guys use any kind of loctite anerobic sealant, or specifically for beetles a esoteric product called cascacinch is used to seal the case halves, it being able to stand up to air cooled motor oil temps and the ethanol in the gasoline dissolving sealant. Cool vid thanks!

[@GregsAirplanesandAutomobiles]

Thanks KN, I have no doubt a bead of loctite would do the job, but I want to stick to the factory sealant and I really don't want to pull the engine out again. I'll wait until someone else tests that.

[@Joe_Not_A_Fed]

I rag to anyone who will listen about how annoyed I get by shouty presentations...where volume and 'off the hook' descriptions, are used to whip up enthusiasm and drama, instead of the content. You already have fascinating topics (autos and/or aircraft...(in this case battleships)) and to me, nothing indicates enthusiasm about a subject, better than meticulous research presented in minute detail. No fat...just delicious meat. Thanks for sharing.

[@johnfinch8173]

Great video Greg. I've got a 2005 Fiat Punto HGT Abarth 1800 twin cam 16 valve (actually 1750 as the capacity is 1747 cc) with absolutely no space for turbocharging. I developed a 1956 stroker conversion, fitted custom H-beam connecting rods, 1 mm oversize Wossner forged pistons, 10.7:1 compression ratio, bigger injectors and ported, gasket matched and balanced the rotating assembly etc. Too many other mods to list here but must mention the torgue and performance is great and scares a lot of modern cars. The top end is restricted to 140 mph as it is hitting the rev limiter in 5th gear (soon to fit Alfa Romeo 2.0 TS 147 gear set) and that is fast enough for me. Enjoy your build as I did, especially the driving.

[@GregsAirplanesandAutomobiles]

Sounds like a great car! Sadly we never got the Puntos over here, and Fiat totally blew it my not bringing the Fiat Coupe in the early 90s.

[@johnfinch8173]

@@GregsAirplanesandAutomobiles Back in the day my dad raced a Fiat Abarth 1000 TCR (Fiat 600 based) and had a Fiat Mirafiori 2000 Racing ( twin Cam 16 valve) worth a lot of lolly today. The engine and drivetrain in the Fiat Punto is basically the same is in the Fiat Barchetta until I got my Automotive Engineering brain into gear. Your idea of lowering the Fiat 124's engine compression as you stated and adding more boost tells me you know what you're doing on the turbo side of things. PS. Are you on Facebook or Email so I can download some pictures of my baby?

[@moss8448]

tell you what when you balance the pistons and rods and what not, with the crank; make friction there at it's least co-efficient.... fuel ignition is something you can feel. we've all heard of lemons, but there are times when it all comes together, that once in a lifetime deal, when engines, transmissions, gear ratio, and luck.. all come together on a perfect day and do exactly what they are supposed to do. Never forget in the mid `60's a guy had a 273 Barracuda when 426-427-428-429's were all the rage and that grey thing would jump and get on down the line; it was something to behold. it all just came together. have seen builders take their time weigh each piece and 'balance' a motor and have felt the 'jump' it creates...the beauty was it got better mileage because it was more efficient.

[@merlin51h84]

That was very interesting Greg. Knew about your aircraft videos but didn't realise you covered cars as well. I'm impressed with not only your knowledge but your choice of cars being Fiats! They're pretty good cars aren't they. My brother has the similar engine in his Alfa Romeo Giulietta and he loves it. Keep up the your updates.

[@GregsAirplanesandAutomobiles]

I do like Fiats, and Alfas as well.

[@merlin51h84]

Greg's Airplanes and Automobiles me too...as well as battleships!

[@matthewalbers31]

immensely strong fiat 1.4...

[@rickc303]

Love the detailed explanation! Currently in process of tining belt change on my 2013 Abarth 500 with 144k

[@GregsAirplanesandAutomobiles]

Thanks Rick, and good luck.

[@drewwill2650]

We live in a horsepower obsessed time period, I'm not a fiat guy but it's a big shame that really well-built and interesting engines like this (and Hondas) get overlooked by so many! I love low displacement 4 cylinder engines.

[@greghorton803]

Great video Greg, you certainly have my interest on this one, I'll be following this engine build with enthusiasm. This Fall I'm going to begin transitioning my 2012 500 Abarth from "daily driver" status to "toy car/garage-project". Very interested to see and hear your thoughts on what constitutes the best set of components for a Water-Methanol injection system as that is where I want to start my upgrades.

[@BrodeyDoverosx]

Get a snow performance set for hardware and consider aquamist for the controller.

[@tonystewart7179]

I have a Dart with the 1.4l. These engines are great sounding and have good torque.

[@danielledykgraaf6483]

Well put. Expertly done sir.....

[@laheu]

She's a great looking ship. Always has been.

[@GregsAirplanesandAutomobiles]

Yes, and the Wisconsin has the best associated museum of all the Iowa class ships.

[@corvette724]

great job, can't wait to hear it running again.

[@GregsAirplanesandAutomobiles]

Thanks Axel, I'm pretty excited too. I enjoyed your new Heinkel video.

[@corvette724]

thx a lot 😊

[@jeffussery4884]

My dad had a 71-2 Fiat 850 Spider that was a cool and fun car. I have a 74 Triumph Spitfire 1500 he gave to me that I'm working on. I also got a parts car out of the deal. I put a side draft Weber DCOE 45 carb on it, I'm keeping it old school. If you know where I can find good reliable info how to squeak more power out of engine, and keep it a good turn key driver. It would be well appreciated. I know what to do with a old fashioned American V -8, but the old English 4's are a different story. The tactics are the same, but the don't do's are more important, and costly.

[@GregsAirplanesandAutomobiles]

I would start by looking at anything David Vizard wrote about Triumphs.

[@elgato9445]

Greg.. Smushing? Really? Such technical jargon has my ganglia and synapses shutting down. Please stick to proper verbiage lest I fall into unconsciousness. And yes the racing red is most proper. Carry on Greg..excellent content as usual.

[@GregsAirplanesandAutomobiles]

Hi Steven. I hope you have taken the time to learn to swim.

[@skyking7964]

Man i love thae how your rebuilding your engine.

[@GregsAirplanesandAutomobiles]

Thanks, it's all done and running very well.

[@johnnichols9056]

Sounds like a well thought out build.

[@GregsAirplanesandAutomobiles]

Thanks, I've been happy with it. Not too expensive, but performs very well.

[@CalebsCars]

Good video, I’ve built several engines for various platforms. This is a pretty simple yet effective build. Wonder how this car is holding up

[@Not_Hans]

"Good enough for Government work." Man those are some mighty true words!

[@Dave5843-d9m]

Anaerobic sealants like Loctite 518 will only cure when air is excluded so the potential for error that Greg describes at 6:15 should be reduced if not avoided. Excess sealant does not cure and will not damage the engine oil. I'm not saying drainage gaps should be filled but at least the risks are reduced if it happens.

[@GregsAirplanesandAutomobiles]

Thanks David. I'm happy to report the engine has been running for a couple months, an has no oil leaks.

[@EricTaub]

2013 Abarth Cabrio. Not very modded, a little battered, but I love it.

[@GregsAirplanesandAutomobiles]

I like the Cabrios, 2013s are good ones, the older, and better ECU.

[@kiwihame]

That was very interesting Greg. I've got a MX-5, but would prefer a Fiat if I could find one used. I like your thoroughness so really enjoyed how you approached hotting up the Fiat.

[@Nightdare]

Though in honesty, a Mazda will be more dependable than anything Italian An MX-5 could use upgrades, a 124 _needs_ upgrades

[@GregsAirplanesandAutomobiles]

Hmm, I don't see it that way. The current 124 seems to be an even match for the Miata in every way except dealer service, which in the Fiat world is generally poor. The 124 is also much nicer than the Miata, for example, where the Miata has plastic on the interior, the Fiat uses nice soft touch stuff. The Fiat also has a stronger transmission. If you are planning mods, that's enough reason to go with the Fiat.

[@chickenfishhybrid44]

While using OEM RTV is nice at $30 a tube and with availability issues there's lots of other products that can easily be used in their place. Permatex Right stuff is my number one RTV that I use for almost anything. If I had to choose one product for the rest of my life it would be this lol. It seals most any fluid very well and can basically be put immediately into service after torque. The only real negative is that it can be more difficult to remove components sealed with it and to clean the old sealant off. Permatex ultra grey and ultra black are also both great products. If I'm working on something that I might have to remove in less than a year id rather use one of them lol. They need more cure time.

[@GregsAirplanesandAutomobiles]

I ended up using www.jbweld.com/product/hi-temp-red-silicone . It worked very well, no leaks, no problems, easy to use. I am quite happy with it. Your point is correct, there are other options that are much better than the factory/dealer option here.

[@grahamhufton7715]

Thanks for the videos Greg

[@doc7000]

I love engines

[@asiftalpur3758]

Finally!! More shop stuff! :D

[@GregsAirplanesandAutomobiles]

Hi Asif, see you tomorrow and Paddy's premier!

[@Rubberweasel]

Hopefully she was open but I'm pretty sure if that was a recent visit here then she is sadly closed. I usually ride by on purpose when I go downtown to have a look at her. Nice to see you were in the neighborhood.

[@GregsAirplanesandAutomobiles]

Hi Anton, that footage is from last summer. I did get on the ship, but it closed a lot earlier than I expected and my self guided tour was cut very short.

[@Rubberweasel]

@@GregsAirplanesandAutomobiles Hopefully you get to see her again in more depth as well as Nauticus. Those are some of the few points of interest left here.

[@donb1183]

FIAT doesn't get enough credit for engineering a very fine engine.

[@geomountainbikehandguards3876]

Greg - i LOVE your channel. Im a WW2 fanatic, but you bring this the a whole new level. On the auto side. I am scratch building a roadster inspired by Frank Kurtis' 1953 Kurtis 500B Indy 500 winner. Mine is a 2 seat roadster that will look like a 1955 rally car. If you dont know much about him, Kurtis was an absolute automotive genius (tho not a financial one) His cars were years ahead of the europeans and heavily WW2 aircraft inspired (he started in LA in late 1940s) Id love to post a pic for you but not sure how....

[@GregsAirplanesandAutomobiles]

I know what the Kurtis Indy car is. That sounds like a really exciting project. Also, those hand guards appear to be a good idea.

[@geomountainbikehandguards3876]

Thanks Greg - Keep up the great work! I have a brother in law who is a WW2 nut and a mechanical engineer. He is hooked on your channel too! Kurtis is super cool - i built a tube chassis and im making the body out of aluminum. Built my own english wheel and lots of other tools. I picked up a vintage Soviet chronometer (ACHS-1) from a bomber as a rally clock. If you are ever near eastern CT, id love to meet you. Hoping the hand guards fund the next car project

[@GregsAirplanesandAutomobiles]

You would like my friend Les. He is the smartest guy I know and has a mid engine 1930's era Indy car replica. It's quite accurate, at least in appearance. He also owns the Chevy drag car I made a video of. Good luck with the hand guards, they look like a really good idea.

[@geomountainbikehandguards3876]

I just donated via Patreon. Call me "Captain." Let me know if you need hand guards. Great for urban bikes as well as MTB

[@zfreak2808]

I'm pretty sure you can run a bit more boost with no issues. Your engine is actually designed for boost. I'm running 10 psi on stock bottom end nc miata. That gets me to 13.7s at 105 mph. There are guys running 14 psi on the stock bottom end. That's pretty crazy considering it's a 7000 rpm high compression motor. Luckily, the nc miatas were built with forged cranks, but I'm worried about ring gap.

[@GregsAirplanesandAutomobiles]

I hear you. The stock Fiat has forged crank, pistons and rods. It's a great engine. The Miata engine has some advantages though, mainly more displacement, but also bigger valves.

[@migkillerphantom]

The connection rods are under *tension* not *expansion* in the scenario you describe. Tension is when the load pulls the material apart, expansion is generally some kind of process whereby the dimensions of the material increase on their own, such as heating, phase change or chemical transformation.

[@GregsAirplanesandAutomobiles]

I feel the word expansion perfectly describes what I was trying to convey. If anyone didn't understand what I meant, than I apologize. Now in technical terms, you are correct and your point is valid.

[@aluminumfence]

Battleship stuff? Does this mean we're going to get the epic collab between you and Drachinifel on Naval Aviation?

[@GregsAirplanesandAutomobiles]

I don't see that in the future, but no door is closed here.

[@asiftalpur3758]

@TheSlot1942 do you see Japanese torpedo boats?

[@peterk.5809]

Ducati engines also do not use gaskets but sealant instead. Treebond. is recommended. I bet it would work fine on Fiat engine too.

[@GregsAirplanesandAutomobiles]

I'll bet you are right.

[@alloret302]

Very nicely done vid. Thanks for that. Question- You mentioned using the stock valves. Just to be clear here, does that also mean the stock springs and retainers? Thanks again.

[@GregsAirplanesandAutomobiles]

Hi Al, it has stock valves, guides, retainers, springs, and seats. In other words ALL stock parts in the head.

[@psikogeek]

Upgrade from 4-banger to battleship at 27:21

[@GregsAirplanesandAutomobiles]

Yes, a whole different level of power!

[@psikogeek]

@@GregsAirplanesandAutomobiles Its not a factory upgrade.

[@GregsAirplanesandAutomobiles]

My car won't pass emissions with those types of engines. Have you seen the smoke from a Battleship?

[@GregsAirplanesandAutomobiles]

She is number 64.

[@psikogeek]

@@GregsAirplanesandAutomobiles People who see smoke from a battleship tend not to live to tell about it, so no.

[@iflycentral]

Noticed the radar was actively spinning on that Battleship.

[@asiftalpur3758]

Nice new logo central. I like it.

[@iflycentral]

@@asiftalpur3758 Thanks. Had it for a few months now.

[@GregsAirplanesandAutomobiles]

Wow, you're right! I never noticed it spinning. Next time I'm there I'll ask about that. It can't possibly be active, that's probably for show, but now I am curious about it.

[@scottgiles7546]

I recently made the personal discovery of the Republic P-43 Lancer and the fact it had an actual combat history. And I thought I was reasonable well read on WWII history Looking at its performance, from Wiki sigh, I am surprised several thousands were not produced early in the war when America was dreadfully short on modern aircraft. It should have been comparable to the Hawker Hurricane and P-40 with better performance at high altitude. If it catches your interest it would be interesting to see what you could find in the records on this.

[@GregsAirplanesandAutomobiles]

I do cover it a bit in my turbo vs. supercharging in aircraft video.

[@scottgiles7546]

@@GregsAirplanesandAutomobiles So I did a little more research on my own. (WAIT! You can do your own research? Who knew.) Seems the obstacle was the Air Corp brass. They had the sensible view that the Lancer did not have a development path that would keep it from being obsolete against newer designs. Their error was ignoring how useful it would have been in the short term due to its performance at high elevation. If 1-2 thousand had been built in 1941-42 I think they would have had a good war record as long as they were pulled and replaced by late 1943. It was something they were building at the time and so need to be compared to the P-39 & P-40. Certainly it would have been easier to re-equip Lancer units with Thunderbolts than Thunderbolt units with Mustangs, as was done.

[@greghorton803]

The term for the item that holds the crankshaft is "bedplate". If you Google search something like "FIAT 1.4 turbo bedplate" you'll find that they (FIAT) used that term in their launch-of-the-car materials. Example: www.fiat500usa.com/2011/08/inside-2012-fiat-500-engine.html

[@GregsAirplanesandAutomobiles]

Hi Horton, please check, the description. As I made this video with no script, there are bound to be omissions. When I uploaded it, I took care of these by included the details in the description.

[@karlvongazenberg8398]

Drove a Lada 2015 for like 200.000 kms... :)

[@asiftalpur3758]

Hi Greg, unrelated question to this video but will we get a fleeting mention of the Fw 190C varient in your 190 series? This oddball of a bird really intrigues me especially because of its "pouch" and odd ducting. Given Kurt's electrical engineering background, I'm interested in the decisions that led to this bird whether they saw it as a viable option or was just an exercise and a design study. A mention of the C being either a precursor to the Dora or a entirely separate fresh sheet design would be great too.

[@GregsAirplanesandAutomobiles]

Hi Asif, you can ask questions in whatever video you want. Yes, I will be covering the C model, and it will be more than just a fleeting mention. I'll cover it as well as I can with what little is out there.

[@Bryan-vj9th]

Great video and information! Do you by chance know if the stock pistons are forged? Also, I assume the crank is forged as well like the rods?

[@asiftalpur3758]

I really wish gaskets would just completely disappear from non commercial cars entirely. I've blown so many gaskets and you just have to trust your mechanic to do it right.

[@chippyjohn1]

That's a nice looking lower bearing cradle. Surprised the block is made of cast iron still.

[@mikkotoikka3188]

Jensen healey got that type of engine in seventies. Its all aluminium, very simple and nice. I re ring one back in the day (with chevy 283 rings , cheap but needed to open ring grooves. but then they are as new that way. )

[@GregsAirplanesandAutomobiles]

Hi Mikko, I'm not sure what you mean. I know they had a 4 cyl, but other than that I don't see any similarities.

[@mikkotoikka3188]

@@GregsAirplanesandAutomobiles www.google.com/url?sa=i&url=https%3A%2F%2Flotusmarques.com%2Fparts%2Fcatalogue%2Flotus%2F46-esprit-parts%2F455-esprit-s1-and-s2-engine-mount&psig=AOvVaw1noEWOwVcixugDDlnK7X39&ust=1585980234867000&source=images&cd=vfe&ved=0CAIQjRxqFwoTCPCNqfvKy-gCFQAAAAAdAAAAABAD

[@mikkotoikka3188]

lotus built that engine for jensen. almost the same exept jensen got 2liters.

[@johnparrish9215]

Way back in 1983 the French showed up with a Formula One car with a 1.5 liter engine, turbos, and water injection that made 800 horses. I see no reason why you can't get half of that with E85 and some careful boost management. Remember, you want to go full boost (3 bar or more) after the engines normal peak torque rpm, reduces stress on the engine.

[@johnwright5845]

Renault actually debuted their turbo F1 engine way back in '77 with the Renault RS01. By 1983, Brabham-BMW was making 1400bhp in qualifying trim running on 85% toluene. The FIA finally stepped in and squashed the high toluene fuel because the mechanics were wearing full respirators during refueling pitstops.

[@johnwright5845]

1400bhp from used production car blocks!

[@johnparrish9215]

@@johnwright5845 I think our man will be doing pretty good at 400 hp.

[@johnwright5845]

@@johnparrish9215 from 1.4L? Definitely.

[@MedicalTape_xX]

When’s the next 190 vid? I’m really enjoying that series

[@GregsAirplanesandAutomobiles]

I knew this comment was coming. I don't know when it's coming, but it will come! Keep in mind the automotive videos are really easy to make by comparison.

[@MedicalTape_xX]

Greg's Airplanes and Automobiles I understand, thanks for making such in depth videos, I think the 190 and the Thunderbolt series are you best work.

[@asiftalpur3758]

Your 124 looks incredible! What color is that? A short review/walk around on it would be nice too down the line. Loving the yellow tint on it, first time I've seen one of a 124

[@GregsAirplanesandAutomobiles]

Thanks Asif, I have other videos of it here. It's black with a flat black hood and trunk.

[@karlp8484]

When are electro-pneumatic valves and integrated heads coming to mainstream cars from F1? Apart from cost is there a technical downside for ordinary cars?

[@GregsAirplanesandAutomobiles]

I don't know, that would be a question for Toby, but please don't ask him.

[@idanceforpennies281]

@@GregsAirplanesandAutomobiles I just found out the Koenigsegg hybrid supercar has a 2.0L, 3 cylinder engine that uses pneumaticaly operated valves. 600 BHP. Passes all emissions regulations.

[@neoconshooter]

PPS. Have you ever sent your heads to Air Flow Research? They did a great job for me way back when on my 502.

[@jackhurlbut4906]

You may want to consider Hylomar PL 32M in place of the Fiat sealant for precision, metal to metal, surfaces. It is a British compound we use extensively in the aerospace industry and it performs well in a broad range of temperatures and maintains its elasticity and seal-ability. It is available fro; Marston Lubricants Ltd, Adhesives and Sealant Div, Hylo House, Cale Lane New Springs, Wigan, England You may find it is cheaper than the Fiat compound, and is more available.

[@GregsAirplanesandAutomobiles]

Thanks, I'm sure that's a good idea. What I am doing is using the factory stuff on surfaces I can't easily get to, and trying out something different on the stuff I can. That way if there is a sealant related leak, I can fix it easily and still get the info for my customers.

[@GregsAirplanesandAutomobiles]

Well....update. It turns out that the "Mopar" stuff I waited for is hard as a rock and not even close to usable. Either it's past some sort of shelf life, or wasn't stored at the right temps. Either way, I'm going to have to use something else.

[@jackhurlbut4906]

Greg's Airplanes and Automobiles - I understand. I can send you a page from a maintenance manual where we use it, but I will not post it on here. We use it on aluminum housings made of 356-T6 so its going to be more malleable than the alloy your block is.Another product we use that is the best high temperature anti seize compound going is Phillips Milk of Magnesia. We do not put a single turbine engine together without dipping every combustor built in it prior to installation. I use it at home on exhaust manifold bolts. You will never break another one off again.

[@jackhurlbut4906]

Greg's Airplanes and Automobiles - Give Hylomar a try. FYI - I am an aircraft systems engineer by trade.

[@lo-fidevil2950]

I’m really surprised how close together the cylinders are. Just as a non-expert, it looks like there’s barely any metal in there. Obviously it’s enough though. Interesting presentation.

[@GregsAirplanesandAutomobiles]

That's to keep the engine short.

[@dirtypure2023]

Greg, your expertise is always impressive to me. I have been having trouble with my car. It's had an oil leak for a while, and more recently it seems like the engine is maybe half as powerful as it used to be (for example, the car loses speed on hills, can't accelerate). Can a bad oil leak cause this kind of thing? I've had some of the seals replaced recently but my mechanic didn't replace the harder to reach seals. I've also noticed that the oil is very dirty, even after adding fresh oil to it.

[@GregsAirplanesandAutomobiles]

What type of car is it?

[@bearshrimp]

Hey Greg, love your channel! I have a background in aviation, was a GA pilot and also have owned 2 FIATs. I just rebuilt a Non Turbo 1.4 motor because my 2013 500's oil pump suffered a catastrophic failure 😢, still love that little car though. Anyway, does the inability to find hard data on automotive super and turbo super charging irritate you? Have you found a good source for boost pressure data? For example, I can't track down the boost pressure for the Ford supercharged 3.8 V6. Thanks for your help and keep up the good work!

[@GregsAirplanesandAutomobiles]

Thanks, I'm not sure what boost data you're looking for, but I did write a book on the subject, it's in the Patreon section and on Amazon.

[@chippyjohn1]

Is that 20 psi of boost, or 20psi absolute pressure (5.5psi boost)? I'm obsessed with a little Suzuki engine at the moment, the M13A. from a design perspective it is awesome, so underrated. I am building a turbo version of it for a small helicopter. Massive power does not excite me, flying is more fun I think. How is this engine going?

[@CreatureSkaterChip]

Great video

[@jimh6763]

Greg...ive been an auto technician for 30 years, and ive got to tell you that motor is ADORABLE!!!! I have a 2013 Challenger SRT 8. 6.4 litre. Any plans for videos on a real engine!! Lol. Love your videos!

[@GregsAirplanesandAutomobiles]

Thanks Jim, just for the record, my little 1.4 is a Mopar engine, it's cast right into it. I probably will cover the big Hemi at some point. I do like the engine.

[@CrazyPetez]

A Chevrolet LS engine shoehorned in that 124 would do wonders for the power to weigh ratio.

[@GregsAirplanesandAutomobiles]

True, although the easy swap (easy is relative here) is the 400hp Maserati V6 from the current Ghibli. However, swaps are always a pain, and for the cost and effort, you could just get an early LS powered Corvette, save a bunch of money, have a Corvette and a Fiat! As I love the Fiat engine, I'm keeping it in my 124.

[@asiftalpur3758]

Honestly I just don't quite like LS swapped MX5s, defeats the entire purpose of these cars. It's like stancing, no matter how good you do it, it just doesn't sit well.

[@CrazyPetez]

Asif Talpur I hear you 👍. When I was a kid in San Francisco, an older guy I knew had an MG TC, you know the ones with 19” wheels. Well, he put a flathead Mercury V8 in it. It was way too heavy for the spindley frame and wheels. Huge understeer. The engine was probably heavier than a LS, and the car much less rigid than a Fiat 124 or a Mazda Miata.

[@DavidSmith-ss1cg]

@@CrazyPetez - Hillbillies give all of us gearheads a bad name. When I lived in Florida in the 1980s, I lost a race - in my 340 Cuda! - to a few teen gurls in a Chevy Vega. I was angry, but I gave a grin and drove to the next 7-Eleven store and talked with the driver. It was her dad's car, and she let me look under the hood - where a monstrous 454ci. was lurking. There was a heavy chain over the motor, with the ends bolted to brackets welded somewhere below. I have to admit that if it works, it's OK, but this experience kinda kicked my Mopar fan purist sensibilities in the crotch. I don't like to drive so much now, but I still love tech. The blend of tech and common sense makes me love this channel.

[@paintnamer6403]

Chrysler Fiat Pentastar 3.6 engines have piston cooling jets in the block too.

[@GregsAirplanesandAutomobiles]

Many newer engines do, it's becoming standard.

[@kakilai-diybypatricklai1711]

hi greg, i have a few questions: 1. wasn't the multiair a a SOHC, and your new head is a DOHC ? 2. the stock piston diameter was a 72mm, what size was your new piston for the 14xx engine capacity?

[@GregsAirplanesandAutomobiles]

Hi Patrick. Here are your answers. 1. No, my engine is SOHC. In all multiair engines the intake cam is replaced by the multiair system. 2. 73mm.

[@Bull761]

so, my old Ghibli II is only 7.4:1CR and 15psi boost.....these new cars are diesel tech strong but run on petrol!

[@TheAngelobarker]

lol thought you meant the caproni ghibli plane for a second was like dafuq

[@libraeotequever3pointoh95]

In Japan, Studio Ghibli makes anime movies. :-)

[@mehmetsan6044]

You should review Italian Fiat planes too 😊

[@GregsAirplanesandAutomobiles]

I agree.

[@emiliodesalvo7024]

Like the FIAT G-91s and the FIAT F-104s? Yes, at the time in Italy the Starfighters were produced by FIAT Avio... :-)

[@a1a272]

Any anaerobic sealant for flat mating surfaces should work

[@964cuplove]

I’m waiting for altitude vs second stage vs a German plane ;-)

[@GregsAirplanesandAutomobiles]

Actually, I know you meant that as a joke, but this engine is getting the TA152 treatment, MW50 and GM1 set up almost the same way.

[@964cuplove]

Greg's Airplanes and Automobiles - there you go, you are hard to beat let alone make jokes with when it comes to engines - thx for all the educational and entertaining content !!

[@AwestrikeFearofGods]

Since the new pistons are lighter, does balancing the crankshaft include shaving weight off the counterweights?

[@GregsAirplanesandAutomobiles]

a little bit yes.

[@randyallen2771]

Wasn't expecting this when I clicked on your icon but it's very interesting. I went through a Fiat phase back in the day (131, 128, Lancia Scorpion) but never built any motors for them. Seemed like the original 124s were nice little cars but the emission rules really slowed them down. I didn't even realize that there were "new" 124s. I'm curious about the little 500s. Have you applied any of your science to them? It would make a really cute around town Mini killer. Anyway, nice break from the 190 series, which is really superb! You should write a book.

[@GregsAirplanesandAutomobiles]

Hi Randy, yes we tune a lot of 500's, the white one in our video is owned by a young man who works in my shop. In fact during the video you can hear him clanging away on an exhaust project.

[@randyallen2771]

@@GregsAirplanesandAutomobiles Will those things run with a Cooper S in a stoplight GP? (not that I'd ever do that)

[@GregsAirplanesandAutomobiles]

It depends a bit on which Mini, but in most cases yes, and dollar for dollar the 500 Abarth is faster because you can buy the Abarth and mod it for less than buying a stock Mini.

[@justacomment1657]

Nice Project. Might I ask what your target compression is compared to stock? A lot people drop quite a lot... My Engine nerd of choice actually adviced the same to me (better go down to 7.5 and stuff) we sattled at 8:1... Nowadays he aims for 8.2:1 in the builds till 300BHP (Engine) Oh just noticed, full counterweight crankshaft :) Pretty neat engine this is 👌

[@GregsAirplanesandAutomobiles]

I don't want to reveal exact pistons specs just yet. Primarily because if it doesn't work out well, I don't want people to copy it. Once it's done full specs will be revealed, except for the specifics of the valve seat angles and head porting. Compression isn't being dropped too much. I need the engine to have strong off boost power.

[@chadwithporsche]

So are the ignition coils and BOV not necessary for a phase 2 tune? I've heard the early coils were bad but I have a 2017 abarth and would like to save money where I can.

[@GregsAirplanesandAutomobiles]

Upgraded coil packs are not required for a Phase 2 124. As a general rule as long as the car isn't having an ignition break up the coil packs are fine. If it is, then it makes sense to replace them with upgraded units. The 124's stock coil packs hold up pretty well. The 500 Abarths are marginal.

[@thomasharvanek2411]

Very interesting seeing the innards Miss tinkering and driving my '75 spider, lost it two years ago in the divorce rape

[@GregsAirplanesandAutomobiles]

Divorce laws need to be overhauled.

[@warrenjones744]

Hi Greg, I usually tune in to your historical war bird episodes. Engineering is always interesting to me no matter the subject. Nice work here. A comment as well as a question. The separate rear main seal structure is common in the diesel engine world. The question: Is the sealer actually silicone based or is it similar to a Loctite anaerobic gasket maker? Just curios what is so special about it if you know. cheers

[@GregsAirplanesandAutomobiles]

I don't know what makes it so special, but I did have to come up with an alternative, which I'll cover in the next episode on this topic.

[@dturner5901]

Just purchased a 1.4 turbo and am very interested in these builds and mods and where to purchase? Thanks keep up the R&D

[@GregsAirplanesandAutomobiles]

You can get everything at eurocompulsion.net I do tech support for them.

[@lubbas72]

Why can’t they just grind the crank with modern tight tolerances in order to use same bearing chells all across the whole crank?

[@GregsAirplanesandAutomobiles]

I have wondered that myself. However I understand that Honda is doing things the same way now. As I'm not really knowledgeable about mass production I can only guess, but here goes. I think that no matter how good, there are still variations. They keep the variations small, and then even smaller by breaking them up into three groups. Thus they can run more precise clearances this way. These Fiat engines seem to last forever so I think it works. That is not to say that the entire car lasts forever, but the engines, especially the bottom end hold up really really well.

[@justacomment1657]

@@GregsAirplanesandAutomobiles AFAIK the main bearings on all half decent engines are different. And I guess its because the crank is not grinded. It is forged , heat treated and hardened. I guess the expanse to throw away a crank because it is 0.001mm off is way more than build a set of bearings to allow for such variation. Some manufacturers like vw might even accept higher tolerances on the low end engines... (aka burning oil is normal and such...) Nissan did those individual bearing sizes on all turbo engines including the SR20, fj20 and rb26 and its little sibling ca18... Those engines can put out quite some power and they will last (to a point..) It's nice to see that fiat knows how to build an engine. I really loved the bussos (yeah alfa romeo ok ok) :) Sadly alfa has a little arkward engine choices nowadays... 😒 Great little project car :)

[@johnwright5845]

@@justacomment1657 don't forget the VG30DE(TT). I believe there were 5 possible sizes of main bearings when I rebuilt my VG, that was 13 years ago though. Piston oil squirters, iron main cap girdle, and variable valve timing all 30 years ago.

[@al_capad]

Is there any difference between Multiair and T-jet? Both 1.4 Fiat engines

[@GregsAirplanesandAutomobiles]

Yes, they are quite different. The multiair engine uses the multiair system (hence the name) to vary valve lift and timing through a huge range. It uses few moving parts, and those that do move are bathed in oil and don't really wear out. It's a brilliant system. The short blocks are the same but the entire difference is in the valve system. The T jet is the lower end motor, used in European Fiats. In Europe, in order to get the multiair version you had to buy an Alfa Romeo. However in the US market the Fiats got the upgraded engine. So, I guess everything I covered in this video applies to both engines since I never got into the valve train in this discussion.

[@terryturner4116]

@@GregsAirplanesandAutomobiles I was looking at getting a rare Fiat Stilo Abarth because it has a 2.4 litre straight 5 engine but the 1.4 multiair makes the same power...

[@SixCylinderSamurai]

Looks like a shim over bucket valvetrain. Out of curiosity, do they make a solid bucket or shim under bucket upgrade, to avoid the shim popping out at high RPM?

[@GregsAirplanesandAutomobiles]

I'll get to the valvetrain stuff in another video.

[@only1canknowme]

My car has no compression due to improperly downshifting. What step can i take to build compression again? There are no leaks.

[@GregsAirplanesandAutomobiles]

Ron, I don't have anywhere near enough information to help. If you're an EC customer then give me a call on Tuesday and I'll talk you through it.

[@alexdavila1356]

how did the downshifts damage the engine?

[@motorosso3349]

Use a tripod please, quick camera movements make me nauseous.

[@libraeotequever3pointoh95]

In addition to the other benefits, was the reduced compression also intended for use with 87 octane gasoline? Or will you feed premium fuel to this Fiat?

[@GregsAirplanesandAutomobiles]

I'll keep using 91. I'm not doing all this so I can run lower octane gas, I'm doing it to try and get more power.

[@airman64]

I would love to rebuild my multi-air. I have 100,000 I would rebuild the engine in the feature where can I buy quality parts ??

[@GregsAirplanesandAutomobiles]

I suggest Eurocompulsion.net, but them I am biased. They have good products, good pricing, and you get me for tech support.

[@CrackerJack9249]

How similar is the 1.4T in the Jeep renegade?

[@GregsAirplanesandAutomobiles]

Nearly identical, however the blocks do not interchange.