Jump to content


Welcome to Ultimate Subaru Message Board, my lurker friend!

Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.

We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
  • Say hello and join the conversation
  • Subscribe to topics and forums to get automatic updates
  • Get your own profile and make new friends
  • Classifieds with all sorts of Subaru goodies
  • Photo hosting in our gallery
  • Meet other cool people with cool cars
Seriously, what are you waiting for? Make your life more fulfilling and join today! You and your Subaru won't regret it, we guarantee** it.

* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!

Serving the Subaru Community since May 18th, 1998!

Guest Message by DevFuse
 

Photo
- - - - -

EJ22 heads and EJ25 block.


  • Please log in to reply
2 replies to this topic

#1 Tireman28

Tireman28

    Member

  • Members
  • PipPip
  • 14 posts
  • Raleigh NC

Posted 06 December 2017 - 09:35 PM

I called delta cams and they can do a 230’ grind for my camshaft. I have a 2005 2.5 block and ported and polished 2.2 heads. What are yalls thoughts on the possible power output? Or has anyone done this?

#2 idosubaru

idosubaru

    Elite Master of the Subaru

  • Members
  • 23,473 posts
  • East Coast

Posted 06 December 2017 - 10:40 PM

probably depends whether it’s phase I or II EJ22 heads.

there were EJ compression calculators via excel floating around online which might be possible to know as well.

#3 GeneralDisorder

GeneralDisorder

    Elite Master of the Subaru

  • Members
  • 21,467 posts
  • Portland

Posted 07 December 2017 - 06:53 PM

Compression is way over 12:1 with phase one (90 to 98) heads. Not runable. Will pull timing like mad due to detonation issues and likely melt a piston.

 

Phase two (99 to 01) heads are the same as EJ25 heads. Compression will be basically stock. 

 

GD


Edited by GeneralDisorder, 07 December 2017 - 06:58 PM.





0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users