REARMOUNT TURBO!!! (THE BENEFITS)

The benefits of a rearmount turbo system, four years on still going strong incredible...

[@griffsrearmountturbothemod1623]

OK FOLKS I TALK ABOUT THE BENEFITS, WELL HERE IS THE PROOF. kzbin.info/www/bejne/h6LSenWBq7qNrrM

[@almeal406]

Hey Griff. Do you think it's safe to merge dual independent 2.25" exhaust pipe's into a single 3" pipe for a remote turbo setup? These pipes are coming off a 3.0 liter V6 and I want to put a Y-pipe after the CATS with dual 2.25" inlets merging into a single 3" section of pipe with a T3 turbo flange on it, that will be mounted mid-body under the car. Will this setup create too much pressure on the turbo and pipe? or is this going to work? Thanks, cheers mate.

[@griffsrearmountturbothemod1623]

Bobbington Mc'Westerner sounds like you have it sussed out. The main issue is mounting turbo!! do you solid mount or rubber mount? rubber mounting a turbo is fine for street use and drag racing BUT, if your going to be braking very hard eg road course application, then solid mount, because trust me turbo will push forward under hard brakng..You see the exhaust system gets very hot before turbo under boost, which in turn weaken the system, but by solid mounting it eliminates the risk, more of a hassle though to fit because exhaust bellows need to bo installed. One other note remember your system will grow a lot more in length, up to double over na, so have clearance allowed for that.. oh almost forgot have your down pipe nice and free flowing.... cheers Griff

[@almeal406]

I'm thinking solid mount, but are you talking about rubber mounting it with a gasket between the flange and turbo's exhaust inlet mount? Will that flex under hard braking load? This car will be for street use only and I'm going to be running fairly low boost, just about .5 bar (7.25psi) max. This is gonna be an interesting project because it's a Euro car with an aluminum engine.

[@griffsrearmountturbothemod1623]

Bobbington Mc'Westerner in general exhaust systems are rubber mounted, i mean keep tubo the same, so turbo moves with system, it works but under hard braking mine push foward. i think solid mount turbo and flexible bellow works a treat..

[@PM17E5]

Good breakdown of all the benefits, I used to think rear mounted setups were a bad idea but now I'm starting to reconsider it. I got an e39 540i and making the manifolds to plumb all of it in the front would just be a nightmare, even though I tig weld myself.

[@twizz420]

That is a BEAUTIFUL Monaro GTS.

[@robncasey1216]

I appreciate this video! My son has a V6 mustang & is actually in a V6 mustang club. He wants to turbo the car without changing the appearance under the hood & I told him this was an option. Your wonderful video here is a great resource I'll be shrink with him.

[@wazza33racer]

The American made P47 Thunderbolt also used a large, rear mount turbocharger to boost the R2800 radial engine. The only downside was the large amount of ducting to pipe air/exhaust around the pilot who sat between the engine and the turbocharger which was the size of a smaller modern day refrigerator.

[@griffsrearmountturbothemod1623]

WOW rearmount Thunderbolt, well there you go its been around for a while, thanks for the history lesson.

[@djzomb1]

such a beautifully done up vehicle. well done!

[@firstgoinpostal]

Use to have a '72 Trans Am with a 455HO,with a cross ram induction manifold,running 8, 2bbl webers,and water methanol injection. Dyno tested at 780hp,12.36 in the quarter mile(heavy car). Top speed I was brave enough to take it was 196mph. 4spd slap shift. Cadillac leveler ride suspension. Roof chopped,and channeled 6". DIY custom fender flaring,shaved door handles,and ground effects. Bought it as a rollover salvage in 1980(I was 15),and spent almost 3yrs building it. Totaled it 6mo.after it was done@120mph.

[@j.feldmander1956]

Matthew Wayer if you could only hit 12.3's in the 1/4 mile with over 700hp, something was definitely wrong.

[@firstgoinpostal]

Feldmander Feldmander The car was set up as a top end street racer. It didn't really even hook up until the second half of the quarter mile. It also was a pretty heavy car.

[@zososldier]

If its a high speed racer than 12.3 isn't terrible. For all we know it could be a salt flat racer with zero power until ~60mph. With a top end of ~200 from a 4 speeed + lower RPM v8 (compared to more modern engines) that sounds like the case.

[@victorylanel3150]

What a sweet choice of rims! No one could tell my 300zx was twin turbo when I lifted the bonnet either, what a nightmare to work on!

[@griffsrearmountturbothemod1623]

Victorylane L i was very liucky to find these rims, honestly i have been looking for a set for 10 years, and was only flicking through local paper and stumbled on them, it was meant to be...

[@kevinpettersen6999]

this was good. this solved all my problems. thanks for the idea. I am green on this but we all need to start somewhere

[@griffsrearmountturbothemod1623]

Kevin Pettersen ithere must be 50 shades of green lol..., im still learning about it all, But i have something thats inside! me !! a driving force, PASSION with that you can achieve anything.....

[@Musclefella]

Great vid thanks! Keep em coming!

[@steppingwoulf0820]

smart cookie griff bro. ingenious and clever thinking. its an obv better place and dont know why no1 has done this.. well done.

[@griffsrearmountturbothemod1623]

HELLBHOY 79 Gee thanks mate, its bloody fantastic.

[@flakeyboyz5664]

Alot of people have done it

[@BADAZZ93STANG]

Awesome video! !!! It's weird that people don't believe in rear mount turbo systems.

[@griffsrearmountturbothemod1623]

BADAZZ93STANG Five years on and i still struggle to believe how well it works hahaha...

[@maddogmacmanateejones4926]

People got their heads up their ass.lol

[@BADAZZ93STANG]

Thanks for the great info..I'm just trying to make sure I get the right turbo...

[@griffsrearmountturbothemod1623]

Depends on what your after.. drag racing i would have gone slightly bigger, plus bigger stall etc.. For street duties maybe slightly smaller on ex housing, but will lose a little up top, but thats for street a bit of give and take..for what im doing this is perfect for me, maybe a improvement would be a ball bearing turbo, but thats💲💲💲

[@CharleswoodSpudzyofficial]

I can tell you are proud of that ride you got there! Very nice mate

[@griffsrearmountturbothemod1623]

Charles wood yes i am thanks, finally living out my dream....

[@63turbo]

Very cool, super clean set-up!!

[@griffsrearmountturbothemod1623]

Thankyou mate

[@AmariLambo]

It’s good for weight on the rear tires, and cool air is more hp too, If you have a v8 turbo lag is near non existent plus everything uses 2 step anyway Or The piping is similar length with no intercooler

[@87xfute]

Hi I've just subbed to your channel, may I say what a beautiful car !! I have been talking rear mounts for years and everybody knocks you down with all the excuses under the sun why they won't work and me being an automotive engineer I'm telling them it will and do work VERY well !!! Great job mate well done, love it !! Seeya Rob..... I have a one owner, I'm the second owner XF falcon S pac sedan with 125,000 k's on the clock !!

[@griffsrearmountturbothemod1623]

Welcome aboard Rob, thankyou for your kind words.well I hope you enjoy my vids,i do try hard too put informative information, along with some spirited driving at Symmons plains and Baskerville raceway on my channel. Your XF sounds very nice with reasonable low ks.i had a XD panelvan 250 cross flow on gas, for ten years as a work bus bloody fantastic, never missed a beat.cheers Griff.

[@iwannapoop]

I've gotten some of information on systems like these but only for Corvettes, due to the lack of space under the hood and the damage all the turbo heat causes the fiberglass when placed high in front of the engine. Question... Are you using engine oil for the turbo or an independent system? In its engine oil: What oil pump do you use? Do you use one for the feed and one for the return? Do you have a sump tank for the feed? If it is a separate oiling system: What oil do you use? Do you use ATF? AND FINALLY : how do you protect your system from road debris?

[@SupaNautica]

I've always wondered why more people don't do it, I first heard of rest mounts probably 15 years ago and as soon as I heard of it I was like.. this will be the norm one day because of the cooler air temps and pretty much all the stuff you mentioned. I just makes so much sense

[@griffsrearmountturbothemod1623]

SupaLexy CH1 It sure does make sense, thankyou mate....

[@SupaNautica]

ahaa!!! I knew it!!! I have seen your channel before, very cool. Ok so I have subbed up now and I'll be sure to visit more often.

[@bradleycampbell5933]

great idea and you have a gorgeous car !

[@griffsrearmountturbothemod1623]

Bradley Campbell Thankyou sir.

[@mlchristopher]

Nice car and I appreciate the info.

[@griffsrearmountturbothemod1623]

MLChristopher thankyou

[@theredwedge9446]

Such an incredible car !

[@GiulianoAlmeida]

What an excellent project! I have a Ford Maverick 4 doors, with a 302 v8 engine, with a 600cfm quadrajet carburetor. Do you have more details about your project? Would it work on the 302 engine? thx for share!! :)

[@daztaz8651]

You convinced me , thank you

[@nobullshiit5682]

yup I'm going with a rear mount turbo for my s10 , dont want all that extra heat under the hood and weight plus it woudl make it easier to change the plugs etc

[@jonathonvince3605]

I want! love the car

[@FUBBA]

Its perfect for the entire band of power to have those. Low end torque followed up by the boost

[@metcaelfe]

amazing car and very unique! some good points too. I would have assumed immediately the lag would be unreal! beautiful engine bay! good on you mate!

[@griffsrearmountturbothemod1623]

Thanks mate, I still struggle how quick it spools it defies logic, sometimes you have to experience it too believe.

[@metcaelfe]

Griffs Rearmount Turbo. I'll bet! come take me for a spin ey? haha I'll let you take my RS out for a run ;) cheers matey! keep enjoying your beautiful beast!

[@griffsrearmountturbothemod1623]

If your ever down at my local track on a club day bring your helmet im in Tasmania, you sure could have a ride,

[@metcaelfe]

Griffs Rearmount Turbo. I'm up in Sydney but I rkn a road trip south and a ferry ride across the pond with a lap around Tassie would be bloody awesome! You never know matey, I might take you up on the offer some day! :-D

[@jimzivny1554]

Car looks great, nice installation!

[@griffsrearmountturbothemod1623]

James Zivny thanks buddy

[@timtravasos2742]

Great idea. Good design.

[@TheFunkyKettle]

Holy shit, that is one nice looking car. Cannot beat a modernized classic like this, reminds me of a ford Mexico the way it sits.

[@griffsrearmountturbothemod1623]

Steve Edwards thanks buddy.

[@TheFunkyKettle]

Fuck that, the pleasure is mine. I'll be subscribing and adding you for future reference when i eventually get my very own V8 :) You take care

[@PomTheBastard]

Another great little clip Jason

[@griffsrearmountturbothemod1623]

Glad you liked it, my turbo friend 😆

[@PomTheBastard]

V8 turbos got to stick together

[@leroyt2590]

What pump did you use to return oil back to the pan?

[@joce0993]

How do you figure out what kind of turbo you need to get good results?

[@tomvee22]

Csn you make a down sides video, i am looking to fabricate one on my 350z. Lmk if you have any advise for that application, or know what turbo i should use?

[@griffsrearmountturbothemod1623]

Drift Ninja TV should have done this twenty years earlier, Thats the down side

[@janusjohansen9676]

Mind - blown!

[@ricardolepe6021]

Griff I'm sold brother. i am 100% going to put it on my HQ

[@griffsrearmountturbothemod1623]

Ricardo Lepe wise decision, you wont be disappointed,

[@OpenRoader]

Is there any change in the turbo lag? I have little experience with hot rodded turbo cars. But it seems that, when you drop the hammer, the engine powers up, the exhaust has to travel all the way to the rear of the car before the turbo will begin to spool up, then the compressed air has to travel once again, the whole length of the car, through the intercooler and into the carb. Do you even notice any discernible delay? I have seen set up's like this before. Seems like a smart way to get all those parts onto the car.

[@griffsrearmountturbothemod1623]

all I can say is watch my other vids of it in action, that will answer your question...

[@dmedeiros1974]

great job man.... very clean

[@griffsrearmountturbothemod1623]

Denny Medeiros Thanks mate.

[@SquillyMon]

From what know and understand...it is most beneficial to have the Turbo as close to the exhaust ports of the cylinder head as possible, this is in order to take advantage of the HEAT and Gas Expansion, to spool the Turbo. Turbo's don't have to worry too much about Heat. Oil coolers and water cooling for the Turbo usually have the Turbo heat issue handled rather well...rarely does a Turbo die from a heat issue while running properly. I find your build interesting and its cool to see your mounting setup and I'm glad it's working out for you. Is this just for novelty/fun purposes ? (the mounting setup) It doesn't seem that you were forced to do this due to lack of space under hood. Well anyway...just admiring your build and thinking out loud I guess. Good luck with her and have FUN Mate !

[@griffsrearmountturbothemod1623]

Don't worry mate I still scratch my head on how well it works, my only regret is I wish I did this twenty years ago....

[@SquillyMon]

+Griffs Rearmount Turbo. Another thing that comes to mind...esp where I live is exhaust rust...Unless its high grade stainless steel. In my geographical area this would be very susceptible to rust/leaks... Another thing is Turbo lubrication, the drain back to the oil pan in particular...all of that has to be extended like crazy and there is no free flowing/easy gravity route to drain the Turbo bearing oil (engine oil)...it is basically building oil back pressure...it just has to in this setup, how is that handled? As soon as the Turbo seals start to get "iffy" it will present with Blue Oil smoke far earlier than a free flowing gravity drain back to the pan. The Compressor pressure tubing all needs to be extended also...everything needs to be extended like mad. There are a lot of reasons the Turbo is "supposed to be" close to the engine. Don't get me wrong, I actually like the concept quite a bit and you have done a fine job Sir! I think it just has some drawbacks (Expense is another) and or is kind of breaking the Turbo mounting "Rules" if you know what I mean. Again, I admire your work in all of its Glory. As long as she is working well and you are happy with it, that is all that really matters Mate!! Beautiful car BTW, you did a nice job with it. I think I'm a bit jealous! Good luck with her and ENJOY!

[@donmerrigan2362]

SquillyMon what you're thinking of is that hot gases slow down and expand when they cool down. placing the turbo right off the engine it's receiving the fastest exhaust gases coming out and it takes less time to reach the exhaust wheel giving you quicker response out of the turbo. the long charge pipe running up to the intercooler and then carb also take longer to fill when you hit the gas so that also effects your response time. it's especially at part throttle and transient response when shifting that it's going to be noticeable compared to having only a couple of feet of intercooler piping. people with suby's find that the turbo responds noticably slower when switching from a stock style top mount intercooler with only a couple feet of piping to a front mount intercooler which easily has double the piping amount. it just takes more time to fill longer pipes there's no way around it. both set ups have their own advantages and disadvantages. this guy really doesn't want to add any extra weight up front so this was ideal for him. someone that does a lot of rally or scca style racing where you're on and off the gas a lot would put much more importance on faster spool and response times so under the hood with the shortest intercooler piping they can get would be more ideal for them.

[@aussiebloke609]

+Don Merrigan I think you hit the nail on the head with your comment. Pros and cons with every setup. This looks like it would be _very_ good for something like drag racing, where you're able to get on boost before you leave the line. On the other hand, if you're into being on and off the throttle, starting with a V8 would sure help mask lag issues, as it should have a decent amount of grunt down low anyway - but I wouldn't want to use a rear-mount turbo on a smaller engine like a 4 cyl.

[@_Anthony___]

@@aussiebloke609 what about an inline 6

[@jey7597]

Hello, I have a question I have an e39, m62tub44 engine and I want to put a turbo I have a turbo kit for e39, chip to tune the ECU and turbo ct26 with toyota 7mgte, I just want the sound of the download and I do not mess with the parts that I thought to reduce the compression of the engine with 10.0. 1 to 9.0.1, that you recommend 6 0 8 psi of the turbo with that I'm satisfied and that the engine does not burst

[@zmanmd1641]

Very nice car and setup. First, I recommend you create a separate oiling system for the turbo with a trunk mounted reservoir and cooler. That would solve two issues - the danger of the engine losing all of its oil if the line comes loose and the high back pressure on the oil pump lessening oil flow to the engine. Second, how are you filtering the intake air coming into the turbo? A rear bumper mounted air box could provide this service with a short run of piping. This could stop a stone from being sucked into the turbo ruining it.

[@griffsrearmountturbothemod1623]

ZManMD thankyou, the intake is in the trunk, as far as the oiling goes check out my other newer vids i go in to depth about it...

[@ryanthackwray5390]

I have a rearmount on my c5 corvette..Its great and has no lag.

[@griffsrearmountturbothemod1623]

Ryan Thackwray Thats what i like too hear brother....

[@R0yL33]

So you have a fuel cell in the trunk. What about those of us with factory gas tanks ..is there any other free room under there? Nice job. Would have been even more stealthy (and less laggy) with under-the-floor mounted intercooler (air-to-water) and front mounted heat exchanger.

[@JMSpeedshop]

Good info. I'm planning doing a rear mount turbo setup on my car . I have some questions about your setup . Do you have a seperate lubrication system for the turbo in the back. Or do you have oil lines running from the engine to the front? How much boost are your running? What temp benefit do you get from the intercooler. Thanks good video !!!!

[@griffsrearmountturbothemod1623]

JMSpeedshop ! You will find all info you need on rearmounting, plus heaps of tips and tricks on this channel. Thanks mate.

[@mjl6425]

So when the turbo is like 1000° LOL, and cold water hits it it’s not gonna crack it in anyway?

[@50sventovit]

Great idea, I will do such an installation on my vehicle. What about welding fins on to the pressurized air pipe for additional cooling, would that work?

[@griffsrearmountturbothemod1623]

Stephen Stobinski yes i have often wondered about the same idea. I think it would help...

[@PGHdrift]

Props to you and your build. Also it was good to hear another persons point of view and was well explained. For a question. Could you get rid of the intercooler up front and put it between the length of piping under car and put a scoop to grab air?

[@griffsrearmountturbothemod1623]

Anthony Schmitt Thats a bloody good idea mate, i have been thinking about repositioning it sometime, or maybe water to air, but in middle of car, What you said is well received cheers Griff 👍

[@codyfinchum890]

nice holden I really like that body style wish it was available here in the US I have a question though do you have the factory motor or one that is similar to what I believe 350 or was 302 can't remember right off hand

[@griffsrearmountturbothemod1623]

Cody Finchum its a factory motor 308 cubic inch, the one in the car is a little stroker crank brings it up 355 cube, There is a 308 cube based block putting out 1400hp running sevens in tne quarter in Australia.mind you he did split it in half lol.

[@hsvman20091]

my mate has the done the same look for REAR mount turbo ~ CULPRIT Torana

[@griffsrearmountturbothemod1623]

chris lloyd The little Torana is Awesome mate...

[@kennykline362]

for those of you wondering what car this is, its a holden monaro gts. they are a division of gm and had chevy engines in them. i didnt know anything about this until i played forza horizon 3 so. \

[@zebraxus]

Comp Turbo has units that require no oil system. Just an FYI. Videos of the oil-less turbos can be found here on YT.

[@griffsrearmountturbothemod1623]

zebraxus i have heard about them. Thanks for the heads up...

[@zebraxus]

NP! Thanks for the videos, and that car of yours is just wicked!

[@user-tu4mf2dz4g]

Do you run a dry sump setup?

[@hagerberry]

This is incredibly cool. I just favorited this video, as well as added to a few other of my playlists. However, I'm curious: not that it will prevent me from possibly doing this someday, because this looks like it suddenly makes turbo-charging much more accessible, but how far can you go, if you wanted to just go for obscene power? My understanding is that turbo-charging ultimately become mandatory, if simply going for the maximum power possible, so long as you can solve the various problems such as heat. So, I'm curious how extreme you can go, before you're doing so much customization that it just doesn't make sense to put it that far from the engine.

[@griffsrearmountturbothemod1623]

Thankyou mate, you could run whatever turbo setup you want, you just think front mount when it comes too sizing etc. have a look at a vid I did called, rearmount turbo for the sceptics, don't take any notice of title was just a bit of fun, but theres some good info. cheers Griff

[@zososldier]

Looks nice. Only issue i can ever see with rear mounts would be that they are prone to boost spikes due to the much larger volume of air that is required to compress when compared to a short run found on an engine mounted setup.

[@griffsrearmountturbothemod1623]

adam courtney Never any issuse at all with boost spike, i reference from intake manifold, been rock solid boost control for four years...myth busted.. cheers mate full repect for your comment...

[@zososldier]

I'm glad that it didn't affect you. Perhaps it might be on smaller turbo systems or crazy high boost pressure. I'm not knocking it, would just hate to try it personally and i'm the unlucky one with spikes.

[@griffsrearmountturbothemod1623]

adam courtney Manual boost controllers can play up, a good quality waste gate and positioned well for good bleed off. just some hints,

[@fastst1]

A different approach! Cheers!

[@griffsrearmountturbothemod1623]

fastst1 yes it is cheers,

[@mistaremy1]

beautiful machine man

[@griffsrearmountturbothemod1623]

DTM Acquisitions Thankyou mate, Have got huge plans for it, stay tuned

[@attemptedsmile]

Griffs Rearmount Turbo. where abouts are you? got some questions that's all.

[@ChitowNkeNNy]

Do you have catalytic converters?

[@Reaper1008]

I would say the sleeper aspect is good, but...The piping that go into the intake , would give it away that it has some work..

[@griffsrearmountturbothemod1623]

James Hurt yea its not a sleeper, but it catches out a lot of local people, you see where i live i think im tthe only person who has a rearmount setup in the state that i know of. The funny thing is most people have never heard of this style of setup so it does fool them, its really quite funny not being disrespectful to them. Tasmania is a beautiful place where i live we have two fantastic circuits close by, But as a population were are not into cars. so i suppose to Tassy people it is stealth Lol...

[@Reaper1008]

Griffs Rearmount Turbo... don't get me wrong, I like the set up.. it is a beautiful car.

[@griffsrearmountturbothemod1623]

James Hurt all good, just a insight to were i live and how people like you and me are a minority when it comes to loving cars....

[@Reaper1008]

Griffs Rearmount Turbo...and in love cars from all walks of life, more into muscle and tuners..not a lot into exotics. and yours is a clean looking car

[@nakre15]

Griffs rear mount turbo .. stupid question, you build manifolds all the way from the front ( yes ofc you have )? BUT I can not think of anything else ..

[@griffsrearmountturbothemod1623]

I don't understand question sorry.

[@BADAZZ93STANG]

I'm doing a mid mount turbo on a 1994 gmc sierra with a 5.3 swap..What do you think about turbo size !

[@griffsrearmountturbothemod1623]

BADAZZ93STANG similar spec to what im running, Nice early spool with good top end thats with a 355 cubic inch.. 5.3 would suit it well.

[@308V8HZ]

Gee Griff ,I'm a Ford man forever but WOW !!!!

[@mjl6425]

What about things like water and the elements? When the turbo is really hot and it’s raining and water splashes on it won’t that mess it up somehow?

[@griffsrearmountturbothemod1623]

Inthepocket Dosent seem to bother it, When i drove it on the street many a time caught out in the rain with no issues at all..still performing five years on..

[@MrPdiggity]

looks like a fun race car man i like it

[@griffsrearmountturbothemod1623]

MrPdiggity Thanks man. yea great mid life crisis lol...

[@matthewmillar3804]

where does the turbo pull air from? A third pipe leading under the bonnet? directly under the car? the boot?

[@griffsrearmountturbothemod1623]

Matthew Millar in the boot

[@jesusjessereyes6633]

Do you have oil feed and coil and feed lines??

[@TheRoguelement]

Can I ask what motor does your car use ?

[@Ericlmarwalker1]

I'd worry about some one stealing it too easy

[@griffsrearmountturbothemod1623]

They have too take me as well, i sleep in it...

[@king_nkonie5991]

😂😂😂

[@turboslag]

Conflicts with all theory and researched installation methods upto present. Presumably, to deal with lower gas temp. speed and pressure, a larger turbo is required to compensate? I reckon on a smaller, 4 cylinder engine, rear mounting would be way less effective.

[@griffsrearmountturbothemod1623]

turboslag Have a look at a vid called Griffs secret revealed, Its some basic principles that i have implemented on this build that aren't mentioned in this vid. But the same goes for a smaller displacement engine...

[@shyecjj]

You did a good job however like you stated it's only good on these kind of applications. On the street it would be risky to watch for things that may damage it. Rain forget it... snow would be really interesting to see that cold of boost hit the cylinders! Reduction of exhaust back pressure,**cooling** factor X2 and weight distribution++++

[@griffsrearmountturbothemod1623]

Thanks mate, rain doesn't worry turbos, just keep intake out of harms way..i think cold weather is fantastic for rearmounts....I have driven in weather just above freezing, wow...

[@tmk5522]

seems like a lot of extra air space to pressurize, I would think it would take longer to reach full boost, but maybe easier to keep in boost? Also does it have a cat and muffler before the turbo?

[@griffsrearmountturbothemod1623]

Tommy Kennedy Theres no difference to front mount fullboost, fact its a closed system, it reacts different, no header wrapping on system makes ramping boost more aggressive, wrapping the system makes it more linear similar to front mount. cheers

[@oscarhollywood]

Hi Griff, very nice ride, could you offer some advice for my setup? Im measuring up my own mid mount or rear mount mild street setup. The only thing im struggling with is getting turbo return oil back up to the engine. Im hoping to use a 12v scavenge pump positioned just below the return oil feed of the turbo and run the oil line back to the rocker covers, is this the way to go? A closed oiling system is too complicated & costly and im trying to stay on a budget. Ive also read ball bearing turbos require less oil so ill be choosing one of them. if you can offer any help or advice, id appreciate that a lot. Keep up the good work

[@griffsrearmountturbothemod1623]

Oscar Hollywood yes thats the way to do it, dont forget to put a check valve straight after pump,because you have to pump uphill a tad to valve covers. that will stop any drain back. i am doing some mods to my oil return soon so keep a eye out on a vid for that, will explain everything. cheers mate.

[@oscarhollywood]

A check valve, no worries, I'll do that. Im pretty much copying your setup, so everything should be covered now. Ill be mid mounting my turbo before the rear axle. Really looking forward to it because it looks too easy. Your setup looks beast as, good pick of a turbo as well.

[@hurricanealley8602]

I like !

[@TheCptawesum]

great vid few questions . what size turbo how much boost what size motor and how much power. im doing a vc valiant in the next few months not chasing massive power . just a good reliable sleeper with pep

[@griffsrearmountturbothemod1623]

Garrett 4202 journal. 355 cube,7 pound, not dynoed, have a look at some action vids you will get a sense of it....

[@TheCptawesum]

Griffs Rearmount Turbo. cheers I've watched a few vids very cool car mate you've done well I've subbed good luck champ

[@98CobraTurbo]

Awesome set-up! To me the advantages outweigh any disadvantages. What brand and size turbo? Thanks.

[@griffsrearmountturbothemod1623]

98CobraTurbo Garrett gt42, 75-82 1.01 ar

[@98CobraTurbo]

Wow. That's a good size turbo. Awesome it spools fast!! Thanks.

[@ktm2smoking230]

This might seem stupid but the extra pipe's coming from the turbo heading back to the air intake wouldnt that cause extra weight and also wouldnt it also cause extra pressure waste or if im getting this right couldnt it cause turbo lag from having to compress more air in the longer intake pipe from the turbo?

[@griffsrearmountturbothemod1623]

A turbo is a incredible design its ability to pump air so quick that the little extra length in pipe is nothing, the weight is about one or two kilogram extra of pipe. Its thin ali tube, its one of those things unless you have been there its really hard to believe how well it works.. cheers

[@ktm2smoking230]

ah ok thats pretty cool wasnt sure if i was being dumb or not but more of a bike person and this is the first time ive seen/heard of a rear mount turbo pretty cool idea tho.

[@adamliddelow9705]

hello can i ask what turbo you run on this car and the size of the rear housing please

[@griffsrearmountturbothemod1623]

Adam Liddelow Garrett gt42, 74.7mm comp, 82 ex with a 1.01 housing...journal..

[@Doosterify]

Rear mount turbos are popular here in the states. In theory I assume they spool a little slower because turbos are powered by exhaust pressure and heat so putting it further away from the engine means less heat energy. If I heard you right you said it spools quickly? Car looks very good BTW.

[@griffsrearmountturbothemod1623]

Doosterfy Thankyou for your kind words, it does spool very quick for how its positioned, check it out on other vids,btw that sound....

[@246cuevas]

is that your bloody garage ? holy crap that's ridiculous . I could live there. effn awsome .

[@griffsrearmountturbothemod1623]

WORLDisFULLofLIES lt is, BUT wife wont let me park it there , only to do vid LOL...

[@246cuevas]

Griffs Rearmount Turbo. hahaaa yeah I got the same issue , but I call her boss lady. LOL cool as hell 👍

[@melbournecrosbie]

great commentry. would be better without the radio in background.

[@308V8HZ]

That's right mate . I HATE THAT ( notice the capitals ) they say yeah this thing sounds great lets take it for a run , and as soon as they turn that key WHAM with the heavy metal , now don't get me wrong I love my rock n roll but if I want to hear the engine , I want to hear the engine !

[@ryanthackwray5390]

I replaced the ls1 with a forged piston 5.3 @ 9.5 to 1 CR with a 76mm turbo..My goal is 800 rwhp once it gets tuned.

[@griffsrearmountturbothemod1623]

Ryan Thackwray Nice. Thankyou (RB) Rearmount Brother.

[@robcut91]

awesome set up mate! you know your stuff! I'm curious of the turbo specs you're running, been toying with this idea for my baby cammed ls1 ss ute but there's not alot of sizing info out there that i can seem to find

[@griffsrearmountturbothemod1623]

Rob Cutajar thanks mate, its a Garrett gt4202, journal bearing, 74.7mm comp, 82mm ex 1.01 ar housing, rated to 1000hp, but the sweet spot is around 750 hp... great lil turbo

[@robcut91]

ahh nice! Yeah I'm currently at 384rwhp, want to shoot for about the 450-500 Mark just as a daily, however i fear the ol' 4l60e might not be up to the task (regardless of any extra power mods i do 😕)

[@griffsrearmountturbothemod1623]

Rob Cutajar excellent size for street as im sure you have seen, exhaust housing flows well up top but great spool up nice and early around 3300 fullboost, too me thats spot on .....

[@MatHelm]

Have you thought about going with fuel injection via something like FiTech GoEFI, being that they're under a Grand ($1000usd) now?

[@griffsrearmountturbothemod1623]

Mat Helm yes i have, and will at some point,but for now the carb works well, i know its crazy the price on efi setups, very affordable nowadays.

[@jamesheim3679]

Single Point Injection isn't "real" fuel injection.... If you do go EFI, go with multiport.

[@MatHelm]

It's as real as real can be. The only real difference with multiport is if you take the time to dyno tune each individual cylinder (Oxy sensor for each cylinder). And even then it only results in using less fuel, not more power...

[@MyLonewolf25]

Mat Helm um... you get MUCH better power from multi port Less turbulence Less obstruction Better atomization And you can get MUCH better fuel delivery into the cylinder And you can make up for and adjust for unequal flow in the manifold allowing you to push the tune harder and better If there wasn't a benefit Modern race engines wouldn't use it

[@MatHelm]

MyLonewolf25 No you don't. You may be able to tweak a little more power, and a relevant (enough to make it worth it on mass production engines) amount of fuel economy. But as I said, to do that you need to dyno tune each individual cylinder for that exact setup. There is not less turbulence, obstruction, and if anything, atomization would be worse. Most dyno's work off of a chart, and aren't equipped to do individual cylinder adjustment. So to find one that can, and then work through all the gremlins on this uniquely boosted setup would be stupidly expensive. Where as a bolt on fuel body that's under a $1000 usd will be so close to the numbers of a mutiport setup, that a cloud blocking the Sun could make the difference...

[@Asofe17]

How do you feed the oil to the turbo? you run pipes from the front? or you made a separate tank/pump for turbo oil only?

[@griffsrearmountturbothemod1623]

Asofe17 Have a look on my channel There's a interesting video i did on the subject called oil drain mod potential solution then there's another vid called oil drain mod complete, if your interested, but if not, engine feeds turbo, then scavenge pump returns oil.

[@Asofe17]

Ill check those out, but damn thats a long road for oil to go, draining oil in oil changes is probably difficult too? :< anyway ill go check those vids, really unique build you got there.

[@griffsrearmountturbothemod1623]

Asofe17 you can flick pump on to drain oil out fairly well before oil change, there would be a little oil left in pressure line to turbo, if i had to guess maybe 200mls,

[@BADAZZ93STANG]

What size charge piping are you using?

[@griffsrearmountturbothemod1623]

BADAZZ93STANG Didnt know wether to go 3 inch or 2.5 inch so settled for 2.75, seems to work well...

[@PropKnucklesFPV]

Sweet car, and video. After reading comments, I have a question.. How about adding another turbo up front? At least a small one. Or maybe a small supercharger, to help with the lag from the turbo. Just wondering what you think.

[@PropKnucklesFPV]

At the very leaat, one of those small ProChargers

[@griffsrearmountturbothemod1623]

Thankyou mate, you better check out my channel, have a look at the driving action vids, see what you think of it , cheers

[@silosis]

nice car mate

[@AppleBag1000]

nice car

[@theproofgiver007]

Do you have to run high boost for a remote mount? I thought for every foot of intake, it takes away 1 psi?

[@griffsrearmountturbothemod1623]

sean foley its no different to a front mount, you need correct charge pipe size, 2.75 inch is what im using it should support good power 1000 hp plus. you can lose a little psi through some intercoolers.

[@jackprice6599]

You loose pressure but gain air density

[@negusibe9232]

nice sleeper

[@coburnlowman]

Has anyone tried this on a diesel? We have an old 6.9 V8 diesel in a Ford truck that's N/A. There was kits made for these engines way back in its day I couldn't afford one now that theyre a special item. Many times Ive thought about putting a turbo below the cab at the Y pipe and running the pressure pipe up to the intake. I had figured it would get a lot of heat out of the engine bay , not to mention not crowding the engine bay anymore. These old 6.9 , 7.3 V8 diesels took up a lot of realstate anyway. Does anyone with knowledge see any problems with putting a turbo so far back? All I can think of is that it'll need a good heatshield between the floorboard or it'll cook some feet. OH Yeah. What about rain or other road grime with the turbo under there? Like I know its sealed and gets filtered air to run thru it but would rain water hitting a hot turbo ruin it?

[@griffsrearmountturbothemod1623]

haven't gone diesel, but don't worry about rain or water, make sure your intake is sealed and out of harms way..

[@jonnymiskatonic]

been curious about rear mounts for a while, I'm wondering though if it's at all viable on a small displacement motor.

[@griffsrearmountturbothemod1623]

Jonny Wonderland i cant see why it wouldn't work well...Hot and cold plumbing size is crucial, as is turbo selection.. A well thought out system should perform beautifully....

[@jonnymiskatonic]

Thanks, I'll have to give it more thought. I love the premise of it and have been intrigued by them for years now. Of course you get all the people who lack vision coming at you with "LAG!!!!!" But it seems like there are plenty of ways to mitigate that, not to mention not roasting everything in your engine bay and getting some actual decent cooling on the turbo itself. Cheers!

[@rodrigomartinelli741]

Hi, what do you mean by "quick response", has it not a ton of lag ¿?

[@griffsrearmountturbothemod1623]

355 cubic inch engine, combined with really nice flowing small chambered heads, a high port design, single plain torker manifold,small street cam, so engine has great throttle response which turbos love. That's why it has very little lag.. quick response.

[@Suron2012]

Fluid dynamics of a gas, and pressurization. Think of how a hydraulic system works. It rely's on pressure, not flow. This is how you can have a rear mount and still have decent response. IT WILL have some additional lag, but the difference should be minute.

[@U43A]

nice vid

[@griffsrearmountturbothemod1623]

Luke Wright Thanks mate.

[@billgeorgestoutakatheorgan1826]

not tryin' to be an ass, just want to help get everybody reading comments to take you seriously and show you the respect I think you deserve... "too" should be used when you want to indicate an overabundance of something, such as "that's too much" also appropriate when meaning "also" such as "I wanna go too". conversely "to" is used like... "I wanna go to the race" or both in a sentence... "I wanna go to the race too!" Cheers mate!

[@griffsrearmountturbothemod1623]

Bill George Stout aka the organic mekanic Thanks mate, for clearing that up, well i do want to race is that not too much too ask, is that right?

[@billgeorgestoutakatheorgan1826]

Griffs Rearmount Turbo. Almost! You got 'em all proper except for the last one... 'too much to ask' Anyway in all honesty you are obviously one well rounded, non-pretentious, very good natured dude! Good on ya', the world definitely needs more people such as yourself! Cheers! hope to see you at the races!

[@gsxrkevin1]

start the thing up!

[@griffsrearmountturbothemod1623]

have a look on my channel, the sound is incredible...

[@USA4thewin]

how do you cool the turbo bearings ?? where do you tap for oil and is water also used ?

[@griffsrearmountturbothemod1623]

USA4thewin Its a oil cooled only turbo (journal bearing) i have tapped off the engine oil pump for feed to turbo....

[@USA4thewin]

Oil Feeding is not a problem how do you get the oil back though and where ??? I think you have an excellent setup and it is opening up a lot of ideas in my head now

[@griffsrearmountturbothemod1623]

USA4thewin kzbin.info/www/bejne/h4mmnJeqpr6jfZY

[@BADAZZ93STANG]

If you can think of anything else I may need to know feel free to share. Thanks again..

[@supertekkel1]

How about lubrication of the turbo? Doesn't the engine need to send oil to the turbo for lubricaton?

[@supertekkel1]

Nevermind, the answer was below in the comments :)

[@MyLonewolf25]

supertekkel1 you do need a pump

[@lsxhornet6314]

Hey mate, What size oil feed line are you running back? I have used -4 which splits to each turbo. I get about 500ml a minute through each turbo. That's cold and at idle. I think this would be fine once warm and the oil has thinned slightly. Cheers in advance

[@griffsrearmountturbothemod1623]

LSX Hornet same as you, are you running oil feed restricters too turbos?

[@lsxhornet6314]

Griffs Rearmount Turbo. Not at the moment, it looks like the amount of oil I'm getting is about just the minimum I would have thought. I can't run it long enough to do a test at operating temp. I could but have to empty the 2l container back in to the motor! Lol wish my pump would hurry up!

[@griffsrearmountturbothemod1623]

LSX Hornet it might all change when oil is hot and revs are up.i remember when i was testing it was a small drizzle of oil about a cup every minute on idle cold oil too with restrictor. Doesn't matter though if your pump can keep up. Testing will confirm. I bet your hanging out too test lol...

[@lsxhornet6314]

Griffs Rearmount Turbo. I am mate! All my piping and fittings for the return line turned up today, so back on the hoist the hornet goes! I've got an ol Holley blue sitting there, might have to hook it up temp so at least I can move it without pushing! What pump are you running? Is it noisy? The pumps from RB racing are helical cut bronze and spose to be very quiet, this will see lots of street duties.

[@griffsrearmountturbothemod1623]

LSX Hornet i had a turbowerx diaphragm pump lasted about 3 and a half years, yes it was quiet. my new one is a cheap ebay special 130 i think. Straight cut bronze gears, noisy as hell, But damm it pumps very happy with it so far.