EFI Head Volume

Mark Romans romans at pacbell.net
Mon Apr 5 17:35:10 GMT 1999


Current compression ratio is 9.3 to one, stock 89 TPI in a Camaro.  He wants
to drop it to about 8 to 8.5 to one and intercool and use more boost.
Currently about 6 lbs max.

I know the Aluminum L98 heads are 58cc, that's what I have on my Vet.

Mark
-----Original Message-----
From: Shannen Durphey <shannen at grolen.com>
To: diy_efi at esl.eng.ohio-state.edu <diy_efi at esl.eng.ohio-state.edu>
Date: Monday, April 05, 1999 6:25 AM
Subject: Re: EFI Head Volume


>Mark Romans wrote:
>>
>> I have a friend who has an 89 Firebird 5.7 w/tpi and a Vortech and he has
>> the stock cast iron heads.  (No casting #) and we are trying to determine
>> what the stock head combustion chamber volume is.  He wants to go to
>> aluminum heads and drop his compression to 8.0-8.5 to one range.  Anyone
>> know what the stock cast iron L98 F-Body app combustion chamber CC's are?
>> Thanks.  Mark
>63-64 cc, if they're the same ones used on pickups.  Drop
>compression?  What is his current compression ratio?
>Shannen
>




More information about the Diy_efi mailing list