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Guest Message by DevFuse

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EJ22 heads and EJ25 block.

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2 replies to this topic

#1 Tireman28



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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


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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


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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. 



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

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