Does anyone have a chart or a link to a calculator or any information on what level octane you need to run based on what your Comp. Ratio is?

 

alot of the manufacturers have websites that tell you what fuels fit what applications, vp makes race fuel, so does phillips 76.

 

that helps........

 

look here nigga....... http://www.vpracingfuels.com/vp_01_f...49A0CC3#leaded

 

I don't see anything about compression ratio's

What is the highest compression you can run on 92 octane?

 

ive seen as high as 11.5 to 1 run pump gas, but i wouldnt do it, what are you trying to do?

 

im trying to get information on compression ratio vs octane rating
like whats the safest comp ratio on 92 octane....... what does 12:1 need vs 13.1 just general information.

 

8:1 needs lower octane 87-89 while something like 12:1 would need around 110.
High compression, higher octane. Putting 110 octane in a car that has about 8:1 compression will not hurt the motor. How ever if you put like 87 in a 12:1 compression motor there goes your motor.

There is no actual formula determining exactly what fuel is right for what compressions and different vehicles are going to vary based on timing and what not. Basic rule of thumb is to use the lowest fuel grade that does not cause early detonation or pinging in the motor. (if you hear pinging you need higher octane)