Milling my 243
04-15-2009, 04:16 PM
#1
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Milling my 243 I searched in the sticky on the CR thread under cam/heads/ect, (Head cc volume = what compression ratio?) and got even more confused. It didn't seem as though there was a real concise answer to my question.
I am considering shipping my 243's out to TEA to have their Stage 1.5 P/P done to them. As I understand it my static compression if I were to just install my heads the way they are now would be right around 10.46:1.
How much can I have milled without running into compression rates too high that I can't run pump gas, 93 octane or running into detonation issues.
The car isn't a daily driver, it will see some track time this year.
Thanks for any advice.
I am considering shipping my 243's out to TEA to have their Stage 1.5 P/P done to them. As I understand it my static compression if I were to just install my heads the way they are now would be right around 10.46:1.
How much can I have milled without running into compression rates too high that I can't run pump gas, 93 octane or running into detonation issues.
The car isn't a daily driver, it will see some track time this year.
Thanks for any advice.
04-15-2009, 04:51 PM
#4
Im not sure how much material is taken off, but if you get them down to 60cc's and use a .040 gasket, it should be around 11.3:1 which is still fine for 93. Thats how the motor is my car is done...the heads were done by Golen engine service.
Since your doing a cam as well, you would be able to run a 112 LSA camshaft and be fine...brings the powerband in sooner and makes it much better to street drive.
Since your doing a cam as well, you would be able to run a 112 LSA camshaft and be fine...brings the powerband in sooner and makes it much better to street drive.
