Unleash the Beast: 4EAT Performance Transmission Rebuild

[@iptperformancetrans]

IPT Performance Transmissions specializes in Subaru high performance automatics and Subaru built autos, as well a performance rebuild kits, modified valve body and high stall torque converters. www.importperformancetrans.com/ Find us on Social Media Instagram - @IPTperformancetransmission Facebook - Import Performance Transmissions Tik Tok - IPT_Transmission

[@blackdemonevo9]

I'm looking into getting either a 2008 or 2011 Forrester XT both have the 4EAT and are making over 400awhp the 2008 is making 522awhp and 501awtq with higher stall tq convertor and external trans cooler, is there any advantage the 5EAT has over the 4EAT? If not what's the recommended HP/TQ limit on the 4EAT with your rebuild upgrades?

[@puggernautmtg1252]

Trying to find a bulletproof automatic transmission solution for my 2006 Toyota corolla hatchback any advice

[@iptperformancetrans]

@@puggernautmtg1252 Give us a shout on Monday- contact is in the description and the first pinned comment

[@puggernautmtg1252]

@@iptperformancetrans hi I sent you a email inquiry

[@zabnorg]

every day is arm day when u wrestle transmissions for a living!

[@crazyDIYguy]

Those output shafts make excellent screwdriver handles, great tool steel.

[@iptperformancetrans]

Outstanding! Thank you!

[@ronnieboucherthecrystalcraftsm]

100% TOP SHOW and quality video = well done Sir .

[@ItsPainnz]

this trans is incredible. similar to toyota a140e before AWD mods

[@АлександрАстасшов]

Джон,хороший обзор акпп спасибо за ролик!

[@hd221813]

Very very interesting video, thank you very much!

[@ilusion2030]

Uma excelente aula!! Que Deus te de muita saúde e paz.

[@ValleyFabrication]

Excellent! Thanks

[@LindsayChicot-qx8dr]

Video was great. But did not see you put in the spring. Which fit in the middle. Saw you removed it, in the take down video but not install in the rebuild

[@SciFly7]

It's absolutely awesome the way you narrate these videos and describe everything, especially the "bowl" and "cone" descriptions of certain pressure plates. Your videos gave me confidence to tear down my 5EAT and made everything recognisable and easily understandable in coordination with the Subaru Service Manual. Is that lubricant mixture consisting of ATF and Assemblee Goo ? I noticed that you only used the Goo in the 5EAT video, and the SSM says to use ATF so I assume this is the ideal combination you're using ? It looks perfect. Thanks for these videos !!

[@iptperformancetrans]

Thank you. The mix is 1:1 atf and STP oil treatment

[@SciFly7]

@@iptperformancetrans Great, thanks! I'll try that.

[@art-creative]

It's interesting. What exactly do you machine there and for what?

[@destnations5588]

Great Video, I toasted one of these last year, and before I knew about this channel, I decided to swap out the ej and 4eat for an ez and 5eat, as I want super low ratio 1st for crawling over rocks and up steep hills. Is it possible to alter the final drive in the 5eat reliably? and Have you ever come across an e locker or air locker in a 4eat or 5eat? Thanks in advance.

[@henk6994]

hello did you have a solution for the super low ?

[@destnations5588]

@@henk6994 Not Yet Henk, but I have a friend doing research into the 4eat final drive ratio change.

[@fitz1114]

Amazing, you make this look so easy, d you have any rebuilt transmission for a 2009 Subaru Forester 2.5 XT Limited Turbo?

[@slippinsideways240sx]

Opinions on modifications to 4eat in order to allow it to possible tow another aubaru to the track? Got 400hp and airlift suspension to allow for ride hieght adjustment loaded/unloaded. Transmission is the last thing to sort out before attempting to tow my LS swapped sg forester with my XT forester auto. Thanks!

[@iptperformancetrans]

@@slippinsideways240sx I’d start with a cooler if you don’t have one. There’s definitely better platforms to use for towing but the usual mods would work, other than a high stall converter of course

[@baja-automotive]

Is there a difference between the six and four cylinder 4eat?

[@iptperformancetrans]

There are a lot of differences among all 4EAT’s- clutch stacks, valve body calibration, final drive and transfer gear ratios etc

[@jeremyclose705]

​@@iptperformancetransis there a specific model and year that is best to build from?

[@iptperformancetrans]

@@jeremyclose705 The one from the car originally is best

[@Alkaline198]

@29:20 where we can see the converter housing bushing. Is the proper orientation of those notches top-and-bottom? and NOT side to side with the oil passage on the right?

[@chriscalhoun6993]

Great video! My 2005 4EAT started slipping in 3rd. Once it shifts into 3rd, the rpm’s just shoot up and the CEL comes on. Drives normal in 1st and 2nd. You think it’s burnt clutches? Thanks

[@iptperformancetrans]

Yes, it’s probably done for

[@chriscalhoun6993]

@@iptperformancetrans you were right! the high frictions/steels are warped/burnt, found the seal on the high clutch piston was torn and also the reverse clutch piston broke the top of all those towers. Have you seen that before? Would you recommend replacing the balance piston and the other pistons with the integral rubber like the reverse one you mentioned? This is my first trans. rebuild so I'm trying to get it done right the first time. Thanks

[@kirktotallyrocks]

Is the modified pack with added friction just for high output turbo applications, or does it benefit the n/a daily driver as well?

[@iptperformancetrans]

It would help anything but is more necessary for higher power applications

[@dtmtecnologic7259]

excelente muy profesional. saludos

[@iptperformancetrans]

Thank you ⚙️

[@FreedomForester-d6b]

I just dropped in a iag 550 longblock and moved to a vf48 turbo with lots of support mods. I am at 305WHP after tune on 92 pump gas. I would love to have my 4EAT rebuilt like this on my 04 forester xt. Whats turn around time? I emailed you guys and it bounced back.

[@iptperformancetrans]

@@FreedomForester-d6b That’s odd. Did you mail direct or use the contact form on our website? We need about a month to do a build Feel free to call if email isn’t working out 9734067000

[@FreedomForester-d6b]

@@iptperformancetrans I tried the contact and direct email. I even used my dot come email and a gmail hoping to get threw. will call monday!

[@juanitocarcamo]

Hello, greetings from Chile, I want to ask what is the name of the master rebuild kit that you use to repair this 4eat automatic gearbox, and if you have the eBay or Amazon link that you can share to import it to Chile please; I have a Subaru Legacy 2.0R and it uses the same automatic gearbox and I want to do an overhauling, I appreciate your complete information and I await your response...thank you

[@iptperformancetrans]

@@juanitocarcamo The kit is ours- www.importperformancetrans.com/index.php?l=product_detail&p=1718 International orders will need to be set up by emailing me: Sales@ importperformancetrans.com

[@MarcosOliveira-wc3iu]

olha eu de novo aqui. como eu consigo o manual de serviço para 4eat segunda fase?

[@atticustheory7]

How much does a rebuild as this cost?

[@samleen]

Since the 4f27e is related, will performance parts for the 4eat work?

[@iptperformancetrans]

It's definitely not related, completely different transmission and transmission manufacturer

[@samleen]

@ my bad I was thinking of a different transmission

[@iptperformancetrans]

@@samleen A lot of manufacturers use the name 4EAT 4 speed E electric A automatic T transmission So it’s a little confusing ⚙️

[@samleen]

@ yeah I’m working on turbocharging my car that has a 4f27e. I’m upgrading the direct drum, back cover, and adding a heavy duty cooler. Do you think it will hold up to 160hp?

[@iptperformancetrans]

@ Hard to say, they are not a very good platform for performance use. That said, we modify the valve bodies and build converters, we just don’t do full builds on them anymore Info is in the description and first comment if you need it⚙️

[@TheLohness]

Could you write all the clearances and tolerances in the packages between the clutches and the steel. Not just low reverse. You take a measurement but don’t wrote it. Thank you

[@MarcosOliveira-wc3iu]

espetacular

[@iptperformancetrans]

@@MarcosOliveira-wc3iu Thank you ⚙️

[@Bob-ew5ul]

Anyone know the part number for the o-ring on that goes on that dark grey bolt on the top at 34:20 ?

[@jonnysperanzini3897]

Odd question, but something I haven't been able to find an answer to: When I shift my car (2003 Outback, 4EAT) into reverse, it makes a relatively loud pop noise. It will also occasionally make a softer pop when slowing down/downshifting. It drives fine other than the noises. I have replaced the driveshaft, as well as the engine and transmission mounts. Cound this noise be a transmission noise?

[@iptperformancetrans]

It could be but I haven’t seen or heard of that particular complaint before

[@jonnysperanzini3897]

@@iptperformancetrans could the pop when coming into reverse be low reverse and input clutches not comig on at the right time? in your video at around 22:00 minutes, you say that could cause a clunk.

[@iptperformancetrans]

@@jonnysperanzini3897 It’s possible but it would be accompanied by a harsh engagement in all likelihood

[@iptperformancetrans]

@@jonnysperanzini3897 Also, this is a lot of back and forth here, I’d be happy to try and answer your questions if you contacted me at the shop, it would be a lot more efficient Contact should be in the description

[@pyzik17]

Hello sir , quick question the exterior plug fpr the valve body that is mounted on in the case of the trans ,is that replaceable? Mine is cracked and leaking fluid .

[@iptperformancetrans]

They are, they connect from the bottom to close to the firewall on top of the transmission bell housing. It’s the ‘external transmission wiring harness’ and they differ from year to year

[@pyzik17]

@iptperformancetrans how do I pop it out of trans housing ? From I side ?and also what's it called ?

[@iptperformancetrans]

@@pyzik17 External wiring harness like it said Drop the pan, unplug everything and push it up through the bottom

[@alexandercharles2842]

is it the same transmission for toyota K3-vet engine?The 4EAT?

[@iptperformancetrans]

Definitely not

[@mikev350z]

John. Whats the best way to contact you personally?

[@iptperformancetrans]

⚙️sales(at)import performancetrans(dot)com

[@mikev350z]

Hey john. I did send an email with a question i had. Really hope to get a reply from you!

[@iptperformancetrans]

@@mikev350z I don’t think that I got anything [e-mail]

[@TheLohness]

​@@iptperformancetransCould you write down all the clearances and tolerances in the packages between the clutches and the steel. Not just low reverse. You take a measurement but don’t voice it. Thank you

[@iptperformancetrans]

[e-mail]

[@ThePumaboii]

Does anyone know what sprays and greases he was using when assembling

[@iptperformancetrans]

@@ThePumaboii Transgel, Brake Clean and a 50/50 mix of atf and stp oil treatment

[@stephenmusselman1528]

What kind of hp and torque can these builds handle?

[@iptperformancetrans]

They are good up to around 500hp

[@stephenmusselman1528]

@@iptperformancetrans is there any difference performance-wise between the 04 Forester XT and the 2006 Baja XT with the VDC and the sport shift when fully built by you guys? I am really liking the option of having the sport shift. My build will be right around 500whp

[@BuddyTheWolfYT]

Is this the same as f-4eat in the ford escorts?

[@iptperformancetrans]

No. Other manufacturers use the same nomenclature 4 speed Electronic Automatic Transmission 4EAT Btw, in the day, we used to call the ford Mazda units ‘ecats’

[@anthonydavis7651]

What is going bad on that transmission when it revs high but hesitant to switch to the next gear. With loss of power going up hill? All my other parts are new like my Cat and basic tune up stuff.

[@iptperformancetrans]

Are all of your symptoms accompanied by higher rpm’s (slipping) or is it just a lack of power?

[@anthonydavis7651]

@iptperformancetrans so I feel like the engine is running strong. At least it should be bc I replaced everything. Anyway sometimes it goes into like a limp mode going up hill. It could be the engine is week but the fact it revs up to 4-6 k and just stays there not wanting to shift. Sometimes it shifts. Then also it'll like to stay at around 3k.

[@anthonydavis7651]

@@iptperformancetrans so I'm guessing it's the solenoids.

[@llzlk]

Dude pass your arm routine! Or is it fixing gearboxes?

[@iptperformancetrans]

lol, transmission work doesn’t do much for that. I have a dedicated arm day, supersets of bi and tris- weighted dips, ez bar curls. overhead cable extensions and dumbell concentration curls. Cable push downs and I don’t know what they are called, like a 1 arm extension Check out @wyckedtraining he’s the man when it comes to technique I’m 54 btw

[@Дима-о2щ5п]

Что он там протачивал, я так и не понял. Бригаду!

[@jacobmcelveen8340]

Could you use the 4eat trans in a 2015 Wrx???

[@orianalleyne3278]

That's a CVT