different head.... - Boost Forum

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different head....
Sunday, April 10, 2011 6:34 PM
Why does the compression goes up when I used the achieva head?????? i have 9:1 compression but ive heard it goes up to 10:5 or 10:7 when using that head







Re: different head....
Sunday, April 10, 2011 6:39 PM
search. its a 2.3 head.



Re: different head....
Sunday, April 10, 2011 7:19 PM
yes it is2.3 HO but why does the compression goes up???????



Re: different head....
Sunday, April 10, 2011 7:23 PM
its because the combustion chambers are WAYYYYY smaller than either of the LD9 head's.
Re: different head....
Sunday, April 10, 2011 7:35 PM
a ok thanks



Re: different head....
Sunday, April 10, 2011 7:37 PM
i dont remember exactly but i know my 96-98 head (decked .020) is 56 cc's.... im pretty sure the Q4 head is like 43 cc's...
Re: different head....
Sunday, April 10, 2011 7:41 PM
thanks z yaaaa, hey i send u a pm please let me know what u think...



Re: different head....
Monday, April 11, 2011 9:30 AM
do it, more compression and a better flowing head is a good way to pick up some power!


_______________________
** Flat Broke Racing Inc.**
Re: different head....
Sunday, April 17, 2011 4:05 PM
I have a bare HO head which has the cooling passages modified for use on the 2.4 for $340 shipped if you're interested email me at z24.turbo@gmail.com
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