awesome numbers!!!

 

If E85 was more available here in Maryland then I would definitely run it daily and not worry about a race gas tune. Soon enough it will be more available I guess.

 

Is it possible to run E85 on the stock ECU?

I wouldn't think there'd be a problem with open loop fueling with tuning, but would the stock O2 sensor work properly for closed loop? Is the optimal lamba for closed loop cruising the same for gasoline and E85 so that the stock O2 sensor would still work? Obviously the stoich is going to be different, but maybe that doesn't matter if the sensor is reading lambda.

I guess the large fuel pump and 1000 cc injectors would work, but you might be close to the edge of drivability for stock ECU, particularly with large cams?

Would you share your max injector duty cycle for this car with the 1000s?

Thanks.

 

Yes, the E85 is possible to run on the stock computer but the computer is going to need to be reprogrammed.

The 1,000 cc injectors I feel would still not work well with the stock computer but an 800 cc might be pretty good. Large cams, still going to not work well with the stock ECU.

Duty cycle with this particular car and E85 on 1,000cc injectors were in the high 80% range.

 

All that was stated was that it's "Actual E85 from Wisconsin"... Not really sure what that means. I live 20mins from Trevor and there is no one around the area that has "Actual E85" here in the winter. Sure they say it is E85 but in reality it is E70. I have yet to find a local place where it is not "dumbed" down to E70 during the winter. This was the only reason I asked.

So if this has 85% Ethanol and truly is E85, just curious as to where it was he got it from?

If you are wondering how you can tell... Ask the manager of the store, they know exactly what comes in. 99% of places get E70 in the winter.

 

Trevor said it was real E85, I don't know where he got it.

 

I had a missconception about this myself befor hanging out on the E-85 message boards out there. Even though my local stations pumps say "minimum 85% ethanol" on them they actually run E-70 in winter.... they just have not put the newer "minimum 70% ethanol" stickers on the pumps.

If he purchased the fuel from a station with the old stickers on the pumps, that does NOT mean he has "true" E-85.... he just purchased from a station that hasn't gotten the new stickers. So unless he blended it himself from 100% ethanol and gasoline he was actually running E-70 for these tests.

Keith

 

Its been the same up here in Oregon but the stickers say minimum 70%
Lol the gas station attendant said ive never seen so many high performance cars come thru a gas station before