What is the limit compression ratio wise
06-17-2010, 07:54 AM
#5
Your camshaft choice will have a lot to do with how much compression you get away with. An 11.5:1 car with a split pattern cam on a 110-112ICL is going to be able to run more timing without detonation than say a single plane cam on a tighter 108-110ICL. Tighter ICL's on the cam trap more cylinder pressure, thus making it harder to run tons of compression without knock. The upside to that is, the increased cylinder pressure can create more TQ and throttle response.
But, to answer your question in short. As Jon said, it's good practice not to go over 11.5:1 in a street car unless you own your own tuning/logging software and can monitor what your car is doing at all times.
But, to answer your question in short. As Jon said, it's good practice not to go over 11.5:1 in a street car unless you own your own tuning/logging software and can monitor what your car is doing at all times.
06-17-2010, 08:58 AM
#7
Your camshaft choice will have a lot to do with how much compression you get away with. An 11.5:1 car with a split pattern cam on a 110-112ICL is going to be able to run more timing without detonation than say a single plane cam on a tighter 108-110ICL. Tighter ICL's on the cam trap more cylinder pressure, thus making it harder to run tons of compression without knock. The upside to that is, the increased cylinder pressure can create more TQ and throttle response.
But, to answer your question in short. As Jon said, it's good practice not to go over 11.5:1 in a street car unless you own your own tuning/logging software and can monitor what your car is doing at all times.
But, to answer your question in short. As Jon said, it's good practice not to go over 11.5:1 in a street car unless you own your own tuning/logging software and can monitor what your car is doing at all times.
I agree. I went with 12:1cr but Im crazy like that.
