i30dvr

iTrader: (6)

Has anyone ever tried running e85 with or without spray? My question is because of the octane of e85 and its price compared to "race gas" there is a station somewhat locally and i was thinking about trying it. I was going to try and put like 5 gallons in first..any downside on running e85 for engine or electronics?

AceofSpds

iTrader: (4)

You will need to be tuned to run the e85, otherwise it would lean out, it has less btu's than gasoline. I think it takes 1.5x the amount of e85 to equal regular gas.

grey99max

iTrader: (12)

You could call NX and ask for recommended jetting. Remember to remove all gasoline from the tank before filling with E85 - otherwise your nitrous/fuel ratio will be way off.

i30dvr

iTrader: (6)

ok what about just running e85 with no spray....any advantages or would it burn it up? i am tuning myself so i would be able to tell if its running lean via wideband but idk if its too high of an octane level

grey99max

iTrader: (12)

It won't be too high octane - E85 is about 108 octane, according to guys I know that use it in turboed cars. High octane won't hurt motors by itself.

You would have to run a much richer load than straight gas - start with 50% more injector time. Alcohol actually runs much cooler than gas - but won't start in cold weather. That's one reason for the 85% alcohol instead of 100%.

Brazil is real big on alcohol fuels - they use 100% for driving but have a small separate gas tank that the computer uses to start the car then switches to alcohol when warm enough. Discovery-channel knowledge, you see.

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i30dvr

iTrader: (6)

damn ahah well i can't control my injector time right now because i'm not running the greddy emu....good to know though cause its prolly not a good idea to run it in 35 degree and below weather.

maxgtr2000

iTrader: (29)

Found this thread through google. http://www.legacygt.com/forums/showthread.php?p=2208417
Seemingliy if you add a little more gas to the mixture you shouldn't have any problems, geographical location matters also, one guy said it the car started in 5 below temps. Yes you will need double the injector capacity you have now, but e85 seems to be good fuel for boosted cars.

rotaryfan04

I had a RX8 running the zex 82021 system. "That is a wet system"
In my experiences Nitrous and ethanol don't mix. Even at a small 5 or 10 percent blend my car suffered massive intake backfires. Save your self some money in repairs and just get a 92 or 93 octane gas besides e85 might be cheaper and yes ethanol does raise the octane level, but it will have worse mileage and possible intake backfires or worse.
Just my 2 cents, and if the gas station is running a ethanol blend as long as its under 10 percent they don't legally have to post it on the pumps.

Chris