You're Building Your 10,300rpm, 8 Second Subaru EJ All Wrong. Maybe.

[@hpa101]

Learn how to build your own performance engine the right way. Take $25 USD off ANY HP Academy course with this coupon: KZbin25 Enroll now: hpcdmy.co/25offytc - Taz 👨🏻

[@Smeedia]

More Subaru Stuff! Love it!

[@DavidPike_Potato]

Spotted a wild Smeed, glad to see you're active in the community man!

[@hpa101]

Yeah man it's been a week of it here! Todays podcast release is one up your alley too mate 😎 - Taz.

[@AltDotAlex]

2.5RS build when?

[@johndicky4651]

Smeedia above your level buddy

[@masonprophet6396]

Everyone always looks a little uncomfortable on camera. lol I love these interviews with people that really care about their cars and craft, and Andre is always so good about getting through as many topics as possible. I am a sucker for any and all high-rpm engines, and I have been wanting to learn more about the EJ engines recently, so this is perfect timing. Thanks guys.👌

[@davey_projects2977]

Hes a man of few words! I had not considered the shortness of the crank shaft allowing to keep tighter clearances as it doesn't bend as much. Makes sense.

[@ray1394f]

Great interview, Andre is such a good interviewer with those deep questions to open up conversation, it always brings more details about the subject you would never get from other channels. Fantastic job. Leigh is definitely a bit nervous in front of a camera. Hopefully you can do more interview with him about his other car at back. I heard it has 2.6L and a sequential in it.

[@eze8024]

I laugh when ppl say subarus are unreliable. Its all down to the owner. Want something you can just slap a bunch of parts on without doing proper maintenance, proper supporting mods, proper tuning etc? Buy a honda

[@RicondaRacing]

The Aussies are on another level in the Subie game!

[@trvallen5242]

Great bloke, his no show pony, totally dedicated to building high performance EJ engines, at the moment he is building some the fastest 4 bangers in Aus ! Leigh has also gained alot of attention all the way from Subaru Headquarters in Tokyo, Japan.

[@gfarnden56]

Thanks for the info, will help with maintaining our sti. It's on 800whp @40psi. 2l displacement and we are starting to run into oiling issues.

[@dominikkozela9763]

I don't see the point in under-torquing arp head studs because as mentioned there is less clamping force and the can back out. May as well stick with the factory bolts if the worry is distortion.

[@hpa101]

We completely agree. Save the money and stick with the factory bolts if you are not going to set things up properly. You can then use that money for something else worthwhile by comparison, so long as whatever that might be is also done correctly though I guess! 😅 - Taz.

[@martinpoon3715]

Useful information. Thank you

[@hpa101]

Glad it was helpful!

[@xzerohunter]

4EAT for the win!

[@HeidiFegles]

Pinned mains on a Subaru is some serious stuff man. But should have been done from the factory with arp rod studs as well. Just to save their name lol.

[@HeidiFegles]

Golden info here folks. Years of knowledge passed on in this short video.

[@NimnoXVideos]

Seriously used the svx transmission? The one I had constantly had issues at stock setup, and everything I've ever heard about them was the same. I'd love to hear what changes he made to it.

[@3ToeCo]

The earlier ones had a hard time due to a lack of cooling, the lazy/smooth 3rd gear shifts and lack of external filter. The SVX did get a slightly better TC than the Legacy did, but it was in a heavier car with a lot more torque. They added a filter and made tweaks through the years of the SVX, but an external cooler and good filter goes a long way. On mods: Valve body mods to get the shifts firmer and generally higher line pressures to keep the clutches together. Not sure if they have upgraded clutches/other internals in their units but I’m super curious! I have a 95 SVX, got it with a bad 4EAT for cheap. Put in a 4.44:1 unit from a 1998 Outback and it’s been pretty solid.

[@gothicpagan.666]

Smart guy, with the knowledge only doing the job can teach

[@kvarnis8549]

Great video Anderw, Would be fun to hear what Rigolis aare up to this days. I stil lhave the 4 eat from the 8.3 sec race car in my garage :D Must say it's no nice to see some subies on HP still love the interview with Andy when he was over there for WTAC

[@needleonthevinyl]

Big respect for people who push the envelope on components like in that transmission

[@fredastaire6156]

This HP Academy stuff is legit gold. I don’t think I could ever find all this technical information in a way that it can practically help me and my build. Thank you for putting out this content. A well thought out scientific approach to tuning? Absolute game changer! ❤

[@Danger_mouse]

13:46 Yeah, we're just letting it have it! 😁👌

[@andrewrigg4905]

Great interview, I got to check these cars out at World time attack. Awesome work guys.

[@stevenross-watt8640]

Nice to see how short that engine is. 4 very short camshafts etc.

[@home541_]

They're a trip the first time you have one apart. Short block practically comes in a wheel box.

[@darcyb29]

Some really good shops out there. Gotitrex, S&J, Ichiban, DCJap, Pulse, MRT, Deshele, The Rumble Shack, probably others that I am missing

[@TimberWulfIsHere]

Appreciate a kiwi who is able to pronounce Subaru correctly.

[@2010dalailama]

Subaru power baby!!! Awesome work

[@Atem_S.]

Honestly, 600/650 hp for Subaru is perfect! Unless you wanna build your high hp on a H6 engine then sky is the limit!!

[@ray1394f]

I think it's 650kw at wheels, which should be around 871whp, with say around 15%-17% lost, it is more than 1000hp in your term for comparison.

[@Atem_S.]

@@ray1394f 600/650hp at the wheel is more than enough for a sti! Of you wanna convert to Kw.. not a lot of suby rides around at 1000hp

[@peejay1981]

Wasn't it 600 kw? I nearly spat my coffee out when I saw it.

[@Martin944turbo]

400+ is perfect for Subaru, especially street/daily :) Anything more is beyond perfect. AWD + modified = very fast

[@Atem_S.]

@@Martin944turbo very good!!

[@59vaughn]

Yeah...practical advise for a very competent build....beauty...

[@marvinvisser5039]

What oil viscosity they are running?

[@boosthit811]

Probably keeping that info to himself. I would guess (somthing similar to) 20w 50 motul 300v....extremely good stuff.

[@russellwoolford179]

Running a good viscosity oil ...please tell us what he considers a good viscosity oil for those specific clearance hes running

[@hyper8545]

Iv always wondered 🤔 what if subaru teamed up with Porsche to create the ultimate 4 cylinder boxer flat boosted 4 banger wow 👏

[@TML34]

I’m pretty sure Porsche doesn’t need Subaru’s help. 😅

[@hyper8545]

@@TML34 other way around bud

[@johnsnow5239]

@@hyper8545 lol, what Porsche forgot about building boxer engines, Subaru still has to learn!

[@hyper8545]

@@johnsnow5239 that's why they should of teamed up for a flat 4 ^^

[@Jack-qn4vt]

The ez30 has Porsche's vario cam style cam lift system soo they might of

[@leojensen9270]

"Reliability" i hate that word with engines at this level. They will never be reliable at these types of power levels. That being said this guy knows his shit and im sure is very successful. But compared to these engines stock they are not reliable no matter what you do

[@hpa101]

It's all relative. Reliable to do 100,000kms with only planned maintenance interval work is different to being reliable to do an 8 second pass without spitting metal, or these days multiple passes within the planned maintenance intervals - Taz

[@leojensen9270]

@@hpa101 very true i just hear people out in the world see "reliable 800hp subaru" and think you can build a daily driver like that and get 100k miles out of it. That being said you guys do a good job bringing accurate relevant information forward and as an engine machinist/builder i love hearing from other professionals pushing the limits of what these engines can handle.

[@byloyuripka9624]

thanks andre love your interviews and love old subies!

[@mihailpetrovici5044]

subaru guys just love their subarus

[@kadengineering8983]

Time for a weight plate at the front Honda style..

[@scoob_dj]

Surprised to hear that they are using an EJ25 running standard liners. Here in the U.K. we struggle to keep these engines going above 500bhp due to issues with the standard liners and the lack of material there. Even adding a closed deck insert, we are still seeing issues with the liners splitting. The US and the rest of the world doesn’t seem to suffer such issues.

[@crxkid16]

Yeah that’s odd, there must be something going awry with how it’s being done where you are. I’m in the US and across all platforms it is a very good solution. Here at least they are cnc machined then pressed into the block and then the block gets resurfaced also they are thick. Like at least 25mm I believe even as much as 50mm

[@scoob_dj]

@@crxkid16 you are referring to sleeving the block, which is well proven for higher horsepower builds, as long as the machining work is done correctly so the sleeves don’t drop. I’m referring to the factory liners, particularly on the EJ25’s as featured in this episode. They are renowned for spitting liners, even with a closed deck conversion, so much so that respected builders in the U.K. will not look to push one past 550bhp. In the US, companies such as IAG rate some of their blocks to over 800bhp on the factory liners. I also heard no mention of aftermarket sleeves on the build in the feature.

[@PolishAlexx]

You're not wrong. EJ25 liners are weak, even closed deck. The solution is longer rods which reduces the angle of the rod (up to 8.11%) which relieves stress on the cylinder walls. Long rod is a standard practice and on almost all IAG blocks.

[@kirk-michaelharris1683]

@@scoob_dj tune with less aggressive timing g

[@scoob_dj]

@@kirk-michaelharris1683 the issue isn’t timing related, the issue is the EJ25 block integrity. Not a problem with the EJ20 or 22’s.

[@AllanNjiru-yi3zh]

cool seeing a high revving Subaru

[@Alphadouch]

Did they get Andre a milk crate or is he actually taller than someone!!! 😂

[@hpa101]

Platform shoes for sure right! 😂 I think Andre is around 185cm or so tall, so he's actually 'up there', just not quite as much as the likes of Scott from Haltech 😅 - Taz.

[@ianharrington3546]

Love it when you talk technical

[@hpa101]

Cheers Ian, have a bunch more lined up from this years WTAC event, hope they're all on point for you 😎 - Taz.

[@mrphiscal]

Plz do the conversion on screen for the us market.kilowatts 🤔

[@aggnal2892]

871 bhp

[@rickcupola6262]

600kw is 804hp. 1hp is about 3/4 kw.

[@djhatton]

you muricans insist on using the stupid system, where the rest of the planet agreed on a better way. so you should probably learn how to convert to your special yank units for yourself, as really only your country uses them. it is primary school mathematics, not brain surgery. you can do the conversion in your head

[@SerenaBluee]

Or just learn the units that other countries use (1hp is approximately 0.75kW)

[@byloyuripka9624]

as anothet dumb american i think you need to simply put in the tiniest amount of effort and actually learn something. i know after going through our public "education" process learning will be a shock and hard but please, i just want people like you to stop embarrassing everyone else

[@Happydays-w3z]

great vid

[@hpa101]

Cheers dude, glad you enjoyed this one too - Taz.

[@PolishAlexx]

When you consider an EJ shortblock shown here weighs only 115lb and is making over 1000hp at the crank, is it not the most powerful engine per pound?

[@Realtime1501]

13B

[@santouchesantouche2873]

@@Realtime1501 the capacity of rotaries are a bit of a red herring. They are much larger than it says on the box

[@Realtime1501]

@@santouchesantouche2873 you can't deny the weight for that size

[@dalkaklaric7199]

Man let the guy answer the questions, nothing more annoying: he may as well not be there!

[@thatGRprick]

Yummy

[@nickthelebo]

Despise subaru boxer engines... but this was a good video quite interesting keep it up :)

[@Grunzaa]

Good interview

[@Eduardo_Espinoza]

Thank you Andre! 👍🏻

[@hpa101]

My pleasure!

[@alitoroganan2442]

Lol its proven over and over again, ej's are shit engines when it comes to making power reliably

[@gobostanky6846]

At least they sound good :/

[@johndicky4651]

Self tapping screws 🤐

[@enhancedphysique6452]

Honda guy stoping at mechanic for directions, sees a Suburu an just says to the owner " "what's up man another head gasket" I heard you Subby dudes keep an extra one in the trunk. Is that true? What's the average a subby owner can go before the tranny or head gasket goes? Answer- a couple pulls then it's back to the garage it goes! It does look great though!

[@hpa101]

I think the fact this person is stopping to ask a mechanic for directions says a lot about them regardless of what they are driving 😅 - Taz.

[@enhancedphysique6452]

@@hpa101 hahaha nooo jk said that cause there's never a reason to bring a Honda to a mechanic so I had to get there some way. That or pulled up an bought a bag of candy bars from the mechanic haha

[@zokusharuuku1091]

😂😭I’m at game over after spending all my money on a new closed deck block and fully built engine since I wanted something super strong and reliable for my build goals. It spun a rod bearing at 6000 miles of normal driving only going into boost 1-2 times per drive while dailying it to work since the turbo is so large. So the car is just going to be a driveway decoration since I can’t/won’t be able to afford to fix it nor sell it since I spent $30k on the engine build and it’s worth maybe $3k with a blown engine. The worst part is nobody around me will work on Subarus and the one shop that could will only put their own custom built engine in that’s $17k by itself for a quote of over $30k. Sadly the block company and the shop who built my engine says the issue isn’t their fault and don’t warranty any work even though they say they do.

[@hpa101]

Take them to court. Got to be worth it for that much money if that are indeed at fault! - Taz.

[@zokusharuuku1091]

@@hpa101sadly I don’t have the money to. Plus the shop is covered since they forced me to sign something saying they’re not liable for any damages since the car is modified for performance and the block company is only liable to pay for the cost of the block I bought which is only $7k and in betting court fees alone are half that.

[@buss1205]

what shop is it? spinning a bearing at 6k definitely sounds like a clearance issue to me

[@geofreywilliams8014]

Yi bri thi bug ind biring cen bi en esshhu en thi lung rin. 🤦‍♂️🤦‍♂️🤦‍♂️ English please!!

[@hpa101]

If you can read fast and proficiently enough, use the subtitles instead. We'd never ask you to change your accent from whatever it is for us and we're never going to change ours for you dude 😉 - Taz.

[@geofreywilliams8014]

@@hpa101 chir bri cuz

[@hpa101]

@@geofreywilliams8014 chur

[@Zcypot]

if the builder ever reads this, why go 2.3 route instead of a 2.7?

[@John-rw9bv]

The walls of the cylinder become too thin, he’d have to have sleeves inserted and then re-line-bore the whole thing because it warps differently. Basically he wanted high RPM and all the heavy lifting done by the turbo not the crank/block

[@russellwoolford179]

He did also explain going down helps with the engine harmonics alot ..especially at 10k😂

[@TML34]

Andre didn’t want to touch the headgasket issue, did he? 😅

[@cespa4206]

I'm by no means an expert but afaik headgasket issues are more common on the 2.5L engines and are usually a symptom of lack of proper care and maintenance or bad setup. Not a fundamental flaw in the design such as narrow bearings or sump issues at high lateral g forces.

[@TML34]

@@cespa4206 this is an EJ 2.5. But they did a whole head stud upgrade. I’m just poking fun at the issue because it’s been around as long as the internet. Lol

[@ray1394f]

With 871whp (650kw), 45psi and running that engine for years, I think headgasket is just a novice question to bring up. It is more appropriate for say your normal subaru specialist workshop, then it wouldn't be a worthy interview to do at all.

[@andrewross2534]

He might not even run headgaskets

[@byloyuripka9624]

@@andrewross2534 jesus man you can see the gaskets ffs

[@MartyrMachine]

"Beering" issues

[@hpa101]

🍻 - Taz.

[@SHARP1991]

great info thanks

[@hpa101]

Glad it was helpful!

[@zokusharuuku1091]

Subi content!!! My fully built sti with a closed deck block spun a bearing from low oil just cruising in traffic si it definitely is a big issue. Sadly I was going to fix it and retune for my high boost tune as I was only running low boost to let the engine break in but now with the Cobb betrayal I’ve got to find some more money in order to get a standalone ecu. Any suggestions anyone??

[@georgevandertogt2400]

Link ecu

[@PolishAlexx]

Haltech or link. Or just use open source tuning on your stock ecu.

[@matthemberry]

That sounds like a problem between you and the engine builder that you should resolve Shouldn't have spun a bearing in traffic if it didn't overheat.

[@lukerogers78]

I want a Motec but considering the price i will probably get the Link ecu g4x

[@ray1394f]

EMtron is also good choice too.

[@somal1anwarlord197]

A reliable Subaru is called EVO

[@nfsdude0125]

And yet, you've owned neither.

[@somal1anwarlord197]

@@nfsdude0125 you know me? 🤔

[@buss1205]

evos are less reliable than subarus lol, talk to any owner who modifies theirs and find out, theres a reason you hardly ever see evos other than the 10