e85 f/i 6? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

8cd03gro · 06-18-2011, 02:25 AM

Have any of you guys run ethanol in a forced induction 6 yet? I searched around and couldn't find any. Is the direct injection's hpfp limiting, or have you not seen those limits yet? Just interested in what kind of numbers you guys might see on e85 with any of the turbo setups available.

GretchenGotGrowl · 06-18-2011, 08:51 AM

Quote:

Originally Posted by 8cd03gro

Have any of you guys run ethanol in a forced induction 6 yet? I searched around and couldn't find any. Is the direct injection's hpfp limiting, or have you not seen those limits yet? Just interested in what kind of numbers you guys might see on e85 with any of the turbo setups available.

Just got the first tune for E85. We run out of fuel with gas in FI setups, so E85 won't be an viable option for us until we get that issue resolved.

bmorecam · 06-18-2011, 09:03 AM

How much more fuel is needed with the turbo setup gretchen??

GretchenGotGrowl · 06-18-2011, 09:13 AM

Quote:

Originally Posted by bmorecam

How much more fuel is needed with the turbo setup gretchen??

At 6 psi I've maxed out the HPFP. I don't have my logs here (at work) so I'll have to look up what the exact number is. Rough guess would be 60-65% more than a stock car.

bmorecam · 06-18-2011, 09:30 AM

wow!! never realized it needed that much more fuel. Can't belive no one come out with aftermarket injectors yet.

GretchenGotGrowl · 06-18-2011, 11:00 AM

Quote:

Originally Posted by bmorecam

wow!! never realized it needed that much more fuel. Can't belive no one come out with aftermarket injectors yet.

Just a guess, but let me check my logs. I don't think we've hit the limit on the injectors, yet, but that may be right around the corner. We've got to just tackle one thing at a time so we know what the limit of each piece is.

8cd03gro · 06-20-2011, 12:46 PM

Quote:

Originally Posted by bmorecam

wow!! never realized it needed that much more fuel. Can't belive no one come out with aftermarket injectors yet.

e85 requires 30% more fuel for the same amount of energy, but the heat dissipating properties and resistance to knock allow waayyy more timing and more boost safely. Gretch, is it the hpfp that's maxing out, or are the injectors simply too small?

GretchenGotGrowl · 06-20-2011, 07:16 PM

Quote:

Originally Posted by 8cd03gro

e85 requires 30% more fuel for the same amount of energy, but the heat dissipating properties and resistance to knock allow waayyy more timing and more boost safely. Gretch, is it the hpfp that's maxing out, or are the injectors simply too small?

Looks like the HPFP. Should know for sure in a couple of weeks.

bmorecam · 06-21-2011, 04:47 PM

I think its the fuel pump.. even at 30-40% more fuel with my e85 my fuel pressure is already almost maxing out. Not quite there yet but I can imagine for your turbo setup.

Gxproadster · 06-21-2011, 04:50 PM

I feel gretchens pain but my fuelpump dosnt need 60 percent more it can handle it till about 130-140mph then it runs out :-( some cobalts don't have the problem at all and go to 160

8cd03gro · 07-21-2011, 07:31 PM

Quote:

Originally Posted by Gxproadster

I feel gretchens pain but my fuelpump dosnt need 60 percent more it can handle it till about 130-140mph then it runs out :-( some cobalts don't have the problem at all and go to 160

Old thread, but have you guys tried running a more gasoline heavy blend? I have seen almost all of the benefit of e85 on an e47 blend, but it requires less fuel. You won't have quite the effective octane rating, but the cooling characteristics will still be great and you will still be able to bump the timing way beyond gasoline tables. Something to think and talk to your tuners about. . .

dthomp2366 · 07-21-2011, 08:25 PM

Us cobalt guys hit this wall with bigger turbos and one manufacturer made a secondary fuel rail to help.

bmorecam · 07-22-2011, 11:17 AM

Quote:

Originally Posted by 8cd03gro

Old thread, but have you guys tried running a more gasoline heavy blend? I have seen almost all of the benefit of e85 on an e47 blend, but it requires less fuel. You won't have quite the effective octane rating, but the cooling characteristics will still be great and you will still be able to bump the timing way beyond gasoline tables. Something to think and talk to your tuners about. . .

I know alot of folks who have gone that route usually around e50-e60 and still get great result requiring less extra overall percentage of fuel needed to run from the usual 30-40%. You can then def turn up the boost and dont have to worry about knocking

something I noticed you turbo guys been going through.

06-18-2011, 02:25 AM	#1
8cd03gro Drives: 2005 STi corn fed Join Date: Jul 2008 Location: Colorado Posts: 2,997	e85 f/i 6? Have any of you guys run ethanol in a forced induction 6 yet? I searched around and couldn't find any. Is the direct injection's hpfp limiting, or have you not seen those limits yet? Just interested in what kind of numbers you guys might see on e85 with any of the turbo setups available.

06-21-2011, 04:50 PM	#10
Gxproadster It's just a barbie car Drives: Solstice gxp Join Date: May 2011 Location: Florida Posts: 63	I feel gretchens pain but my fuelpump dosnt need 60 percent more it can handle it till about 130-140mph then it runs out :-( some cobalts don't have the problem at all and go to 160 __________________ Trifecta e85 tune 331whp 400wtq :-D

07-21-2011, 08:25 PM	#12
dthomp2366 Drives: 2008 Chevrolet Cobalt SS Turbo Join Date: Jul 2011 Location: Oxon Hill, MD Posts: 9	Us cobalt guys hit this wall with bigger turbos and one manufacturer made a secondary fuel rail to help. __________________ 2008 SS/TC Black w/ Black Int. - LNF FTW Bad-Mab Downpipe \| K&N SRI \| Trifecta Tune @23psi \| Treadstone TR-8 Intercooler \| TTR Engine Mount \| Shorty Antenna \| Debadged Rear and Dash w/ Tinted Tails / Plasti Dip Rims Pioneer 6 3/4 - 6x9 components - Pioneer Center Channel Speaker - Polyfilled Stock Sub Box

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06-18-2011, 09:03 AM	#3
bmorecam Account Suspended Drives: jealous vendors mad!! HAHA!! Join Date: Jan 2011 Location: CYBERGMONSTER@GMAIL.COM Posts: 3,658 View My Garage	How much more fuel is needed with the turbo setup gretchen??

06-18-2011, 09:30 AM	#5
bmorecam Account Suspended Drives: jealous vendors mad!! HAHA!! Join Date: Jan 2011 Location: CYBERGMONSTER@GMAIL.COM Posts: 3,658 View My Garage	wow!! never realized it needed that much more fuel. Can't belive no one come out with aftermarket injectors yet.

06-21-2011, 04:47 PM	#9
bmorecam Account Suspended Drives: jealous vendors mad!! HAHA!! Join Date: Jan 2011 Location: CYBERGMONSTER@GMAIL.COM Posts: 3,658 View My Garage	I think its the fuel pump.. even at 30-40% more fuel with my e85 my fuel pressure is already almost maxing out. Not quite there yet but I can imagine for your turbo setup.