Engine Manual for H4's

[keys2heaven]

Hey,

Any Subaru guys on here that could point me to a good EJ25 engine manual (repair/rebuild)?

I'd like to learn more about these engines and, in case, I get the itch to do a bottom-up build, I'd like to know what's involved.

[audsyn]

The official site is http://techinfo.subaru.com/index.html. You can buy a 3-day subscription for $35 and download the manual. BUT...they don't make this easy, you have to download like a million individual pdf's. Very annoying but that's what I did.

If you google wrx service manual or something similar, you can find pdf's available.

The hard copy manual at subaruparts.com is over $300, but you can buy the individual sections. The engine and transmission sections would prob be $100 or so.

[Kempo]

Here is the complete STI manual. HTH

http://ken-gilbert.com/wrx/STi_Manual/index.htm

[keys2heaven]

Here is the complete STI manual. HTH

http://ken-gilbert.com/wrx/STi_Manual/index.htm

Awesome!

[Justen]

This should be the same as the WRX manual right? only thing different is the transmission and different internals for the engine? same size just stronger internal im guessing?

[audsyn]

No, the STi engine is the 2.5L, and also had drive-by-wire throttle and AVCS (variable cam phasing). The transmission, differentials, axles, hubs, brakes, wheels are all different. Bigger turbo and intercooler, of course.

He's got other manuals too: http://ken-gilbert.com/impreza-manuals

[riptide motorsport]

when you know which model you need Amazon is your friend................Steven