SuperMattyP

iTrader: (1)

just curious to see if anyone has any experience running e85 on a carbbed rotary. I have a weber48 dcoe and crane ignition and was thinking about bumping the timing as safely as possible.

thoughts?

Sammy Built

iTrader: (18)

I'm planning to setup my old mans 1st Gen on e85 NA 12a but were going Holley with it..but I'm going. To a alcohol rebuild kit comes with synthetic gaskets ....

81WideMariah

iTrader: (8)

there's really not much to be gained by going E85 on an N/A car. You can advance the timing to the limit of the stock distributor using plain old 93 octane and not run much risk of detonating. Even fully advanced timing does not offer much in the realm of power gains on an N/A motor. Timing, in general, on a rotary engine is not nearly as critical to power production as a piston engine since since a rotary engine doesn't have to chase the piston down the boar with the flame front to make peak power. Rotaries, due to the larger surface area of the combustion chamber, and the fact that the rotor only moves in one direction aren't as dependent on having super advanced timing. They tend to lend themselves more towards cramming as much charge into the combustion chamber during each intake event to produce power, and this is where E85 shines. More boost=more heat which would eventually lead to pre-ignition and detonation. E85 slows down the flame front as well as eliciting a sort of chemical "intercooling" effect when it is injected into a hot combustion chamber as evaporating alcohol is great at extracting latent heat.

So long story short, save your money for E85 until you go turbo. Besides 87 octane has a higher thermal content and will actually make more power drop for drop than 93 octane and even E85. Stick with 87 on N/A rotaries.

mario1386

I have a questions about that can you run e85 on a stock fuel injected rotary?

Has it been done?

What has to be done?

If so, what has to be done to run e85, I am asking this because gas is getting more expensive and e85 is cheaper

drag 7

that is not true i run e85 in my sons 13b gene berg carb pick up 20 hp but it is alot of work you have to set up the carb as if you were running meth