Steve Vermeer
Member
running cylinder pressure and combustion chamber efficiency will dictate octane requirements in most cases.most people have a tendency to "over octane" things.a higher than required octane for a given application will likely require more timing and will generate more exh temp without any benefit in horsepower.i have seen quite a few instances where a lower octane fuel made MORE power![think btu content and burn rate].as for ve #s ,that's another moving target.a high ve number is not always good,it's just an indicator of how much air is being processed,not how efficiently it is being used.we frequently see high hp drag engines that have ve #s in excess of 100%[120% is not uncommon].a winner this does NOT necessarily make.how the air is used and how much is actually captured and put to work is more important!anyway,to answer the original question, 87 octane in this application is just fine!!
thanks for the compliment Steve!
thanks for the compliment Steve!