I need proof E85 works…and tips for setting it up.

[slowdsm2]

http://206.124.12.138/dyno.jpg

[turbotalon1g]

That is the biggest dyno graph i have seen ever.

Your answer lady is big brown.
239hp to 299.
13sec 1/4 to 11sec 1/4.

You will need injectors, 1 255, some kind of tuning control to take full advantage of E85.

[Shane@DBPerformance]

Normally, you don't need an aftermarket FPR on any DSM, unless you have 2 fuel pumps. Tuning around a little bit of fuel pump overrun is usually not a problem.

E85 can make a little more power without doing much at all on a decent boost turbo car with upping the boos tor adding in a bunch of timing. On a turbo car, the E85 helps cool the intake charge temps like crazy, so you might get a small gain just from that, kinda like if you were running an air-to-water intercooler with ice in it. I usually see a 10whp gain on Evos when I convert them to E85 without turning up the boost tor doing much with timing. But we always turn the boost up and timing up a little from there and get a 40-50+whp gain.

E85 is not going to be of much advantage to a normal naturally aspirated car like a Corvette. You might be able to make a tiny big more power, but it isn't worth it. On a very high compression all-motor setup it is useful. It's of most use boost cars because of the octane and the cooling effect.

2G DSMs with 16Gs and the stock side mount intercooler and no timing control often start knocking above 14psi. E85 would help with cooling/knock, but it the stock SMIC is still somewhat of a flow restriction.

If you drive your car in the winter, you might need 2 different E85 tunes. The ethanol content in "E85" is much lower in the winter.

I would try some 780cc injectors and the SAFC. But you would be limited to E85. 780cc and an SAFC wouldn't work so hot on pump gas.

[TalonFiero]

http://206.124.12.138/dyno.jpg

Is that Hal's graph? I thought I saw that on NABR.

[scheides]

Can't even see said graph.

[Goat Blower]

If you drive your car in the winter, you might need 2 different E85 tunes. The ethanol content in "E85" is much lower in the winter.


This is what I've thought as well, but reading the pump at the Holiday at 252 and 694 in Brooklyn Center, it clearly states on a sticker (not less than 85% ethanol content). I was meaning to give them a call later but didn't get around to it. I know my car immediately ran a bit smoother after I put that in. I suppose effectively going from 1600cc injectors to 1150's or so has that affect. :beer:

[MitsuChick]

Well thanks everyone. I'm still not sure what I will end up doing. I would like to make semi-good power (for me at least) with out dumping loads of money into the car. Maybe I will tune it with what I have now and see what I make, since the car has some how never been on a dyno before, and go from there...

[DSM_421]

This is what I've thought as well, but reading the pump at the Holiday at 252 and 694 in Brooklyn Center, it clearly states on a sticker (not less than 85% ethanol content). I was meaning to give them a call later but didn't get around to it. I know my car immediately ran a bit smoother after I put that in. I suppose effectively going from 1600cc injectors to 1150's or so has that affect. :beer:

The e85 winter blend definitely doesn't have as high of concentration as the summer blend... No matter what those stupid stickers say.

[merkzu]

This is what I've thought as well, but reading the pump at the Holiday at 252 and 694 in Brooklyn Center, it clearly states on a sticker (not less than 85% ethanol content). I was meaning to give them a call later but didn't get around to it. I know my car immediately ran a bit smoother after I put that in. I suppose effectively going from 1600cc injectors to 1150's or so has that affect. :beer:

The sticker is totally wrong, I fill up at a few Holidays that say that but the fuel composition sensor shows 69-70%

[DSM_421]

Merkzu, would you be able to get your hands on a fuel composition sensor that shows the octane level of pump 92 by chance? That would be interesting to see what is actually coming out, and from what places.