What is the highest compression ratio?
#7
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Re: What is the highest compression ratio?
When you say how long it lasts, what does that mean? Assuming the car is tuned correctly.
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Re: What is the highest compression ratio?
I'm running 11.4 to 1. .....055 milled heads with a 60cc chamber...car has mild cam 220/220, 564/564, 110 lsa cam
...car is not tuned and runs rich (A-Tap).
NO KNOCK - EVER on 93 octane **** gas.
...car is not tuned and runs rich (A-Tap).
NO KNOCK - EVER on 93 octane **** gas.
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Re: What is the highest compression ratio?
12.2:1 CR and a 243/250 cam :-D I run on 91 octane with lots of timing pulled for the street, we dynoed it and it made 465rwhp, for the track it's 28* of timing and 103 octane, which the car made 511rwhp on the dyno.
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Re: What is the highest compression ratio?
Fireball,
Have you ever tried race gas and upping the timing?
Have you ever tried race gas and upping the timing?
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Re: What is the highest compression ratio?
I don't quite remember off the top of my head, it's either 14* of timing or 18. Anyhow the CR will drop a little as I'm going with a thicker head gasket.
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Re: What is the highest compression ratio?
I don't quite remember off the top of my head, it's either 14* of timing or 18. Anyhow the CR will drop a little as I'm going with a thicker head gasket.
#18
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Re: What is the highest compression ratio?
I run 11.2 to 1 with 93 mobil or 94 sunoco no problem. I run 32* of timing, never any knock even running 3.42 gears all this time.Car weight is min. 3460lbs but i have raced in stock streettrim at 3650lbs still with good tune no problem. My cam is MMS custom grind 220*/220* .585"/.585" lift on a 112* with 2* advance.My compression figures from 62.5cc chambers .042" head gaskets, flat top pistons, stock +.007" deck height. I turn 7000 rpm occasionally with min. shift of 6700 rpm.