Ethanol and Timing
#1
Ethanol and Timing
just something to pick your brain. i have an LS1 camaro for my hot rod
i usually run 100 octane because i have the timing set pretty high. To the point, i thought ETHANOL was suposed be higher octane rated, when i use a 93 octane with ethanol i get a horrible knock at high rpm. i think because it burns much faster. if i use 93 octane with NO ethanol the car barley pings. so what gives shouldnt the ethanol gas be better?
i usually run 100 octane because i have the timing set pretty high. To the point, i thought ETHANOL was suposed be higher octane rated, when i use a 93 octane with ethanol i get a horrible knock at high rpm. i think because it burns much faster. if i use 93 octane with NO ethanol the car barley pings. so what gives shouldnt the ethanol gas be better?
#7
thanks 4 help. Another Question, should the higher octane of ethanol balance out for lean conditions, advanced timing, or compression?
if mix isnt lean, and there isnt different flame fronts.
thank u, good stuff
if mix isnt lean, and there isnt different flame fronts.
thank u, good stuff
Last edited by 2001SS_stompinsupras; 08-06-2009 at 05:40 PM.
Trending Topics
#8
Staging Lane
iTrader: (9)
Join Date: Feb 2009
Location: illinois
Posts: 84
Likes: 0
Received 0 Likes
on
0 Posts
iwas looking into running ethanol on my big block, i work at an ethanol plant. you would up the compression for the higher octane and go up about 8-10 jet sizes on a holley carb.what that would be on injectors? you need to add more fuel.