<VV> OCTANE CALCULATION

[kovacsmj]

 Most of the gas stations around here sell 87, 89, 93 octane. Do we have
someone on line who can tell me the proper mixture ratio to obtain 91
octane? I would assume the most simple is a 50-50 mixture of 87+93 to
get 90, or 89+93 to get 91. Reason being, the engine was rebuilt to run
on 91, and I want to see if I can get reasonably close. 

 

  140 CR 9.1:1 .032 squish, octane cut pistons.

 

 I would error on the safe side and pump more 93 than anything else.

 

Getting all the information is most of the solution.

 

MIKE KOVACS