I read somewhere that it is because of the smaller diameter pistons. Something about a smaller wave front that produces less detonation, thus requiring less octane than an engine with bigger pistons.I always wondered about this. If high compression engines require higher octane, why do our high compression engines require the lowest available? Of course there are bikes out there with more compression than ours, but ours is higher than most cars. If those cars take 87, why do our bikes take the same?
Per the 2nd paragraph.I read somewhere that it is because of the smaller diameter pistons. Something about a smaller wave front that produces less detonation, thus requiring less octane than an engine with bigger pistons.I always wondered about this. If high compression engines require higher octane, why do our high compression engines require the lowest available? Of course there are bikes out there with more compression than ours, but ours is higher than most cars. If those cars take 87, why do our bikes take the same?
I don't think they add anything to pump (93 octane) gas to get the extra octane. I believe they refine it further to remove impurities to get the extra. I read that somewhere anyway.
Now on race fuel, they add a bunch of stuff including lead to get the higher octane and it does burn worse than lower octance fuel.
A quick little FYI from The FTC... comin' at ya on th QT... I'll get it out ASAP... or is that PDQ...Per the 2nd paragraph.I read somewhere that it is because of the smaller diameter pistons. Something about a smaller wave front that produces less detonation, thus requiring less octane than an engine with bigger pistons.I always wondered about this. If high compression engines require higher octane, why do our high compression engines require the lowest available? Of course there are bikes out there with more compression than ours, but ours is higher than most cars. If those cars take 87, why do our bikes take the same?
I don't think they add anything to pump (93 octane) gas to get the extra octane. I believe they refine it further to remove impurities to get the extra. I read that somewhere anyway.
Now on race fuel, they add a bunch of stuff including lead to get the higher octane and it does burn worse than lower octance fuel.
So wouldn't the 93 be better since its cleaner?
Yep. I think that is the way it is. C16 (VP) is 118 MON and it is the WORST burning stuff. But, you have to have it for 15:1 comp ratios and engines that hot turn in better times even if the fuel sucks when it burns.Per the 2nd paragraph.I read somewhere that it is because of the smaller diameter pistons. Something about a smaller wave front that produces less detonation, thus requiring less octane than an engine with bigger pistons.I always wondered about this. If high compression engines require higher octane, why do our high compression engines require the lowest available? Of course there are bikes out there with more compression than ours, but ours is higher than most cars. If those cars take 87, why do our bikes take the same?
I don't think they add anything to pump (93 octane) gas to get the extra octane. I believe they refine it further to remove impurities to get the extra. I read that somewhere anyway.
Now on race fuel, they add a bunch of stuff including lead to get the higher octane and it does burn worse than lower octance fuel.
So wouldn't the 93 be better since its cleaner?
Is knocking harmful?A quick little FYI from The FTC... comin' at ya on th QT... I'll get it out ASAP... or is that PDQ...Per the 2nd paragraph.I read somewhere that it is because of the smaller diameter pistons. Something about a smaller wave front that produces less detonation, thus requiring less octane than an engine with bigger pistons.I always wondered about this. If high compression engines require higher octane, why do our high compression engines require the lowest available? Of course there are bikes out there with more compression than ours, but ours is higher than most cars. If those cars take 87, why do our bikes take the same?
I don't think they add anything to pump (93 octane) gas to get the extra octane. I believe they refine it further to remove impurities to get the extra. I read that somewhere anyway.
Now on race fuel, they add a bunch of stuff including lead to get the higher octane and it does burn worse than lower octance fuel.
So wouldn't the 93 be better since its cleaner?