As it is with most of us. That figure is in the ballpark. The jb4 website has some actual dyno figures from Terry's group. Pretty solid info for reference......as the saying goes..."your results may vary".I know the nearest dyno is 3hrs away. I thought I'd save a full day by just asking on here. Does 7% per 1psi sound right or am I way off?
Kool thanks, I appreciate an honest replyAs it is with most of us. That figure is in the ballpark. The jb4 website has some actual dyno figures from Terry's group. Pretty solid info for reference......as the saying goes..."your results may vary".
Forgot my calculator....974 whp
There is no direct relation between PSI and HP/Torque... Seem like you would like to be able to tell your friends that your car is at X HP. As car enthusiasm you should know that peak crank HP mean nothing.So my question is how much hp with the jb4 tune will add with 4psi-5psi. How much HP does 4psi add?