E85 Powered VR4? - Page 4 - 3000GT/Stealth International Message Center

ver fer · 10-20-2007, 03:04 PM

The kit looks like it's just a box that plugs in between the ECU and the injectors to lengthen the injector pulse. Unfortunately the stock fuel system will not be able to keep up with the fuel demand. You would still need a bigger pump and injectors.

Ondontii · 10-20-2007, 04:21 PM

A guy here just finished swapping over to e85 in his na-t supra. He is very happy. No more race gas

a2j · 10-22-2007, 04:22 PM

Quote:

Originally Posted by ver fer

You won't be able to run e-85 on the stock set up. You will need larger injectors and fuel pump.

I am currently running ~30% ethanol mix (3gal 110/2gal e-85) and my IDCs hit the high 90's.

I ran e-20 (20%,91 octane) to the NG this year and did a few pulls on the way and had no knock up to 18psi.

So in order to run E85 I have to have more fuel delivery? even if I won't race on it? just for normal everyday driving. and mixing 93 octane fuel and E85 is perfectly normal, correct?

UPP · 10-26-2007, 01:30 AM

I've run e85 for a while now, with great results.... Yes, cold wether (CO) sux, and it's harder to start, but you can't have your cake and eat it too!!

That's just one of the characteristics of alcohol, it doesn't vaporize in the cold very well. So I crank a little longer....I can deal with that for the added boost. I also have a customers evo and an employee running it on his honda.

Cost wise, it's really nothing. You pay ~30% less, but you use ~30% more.

You do need something to tune it, I use AEM, but for whatever the mixture of e-85 vs 91 (or 93,104,110) you have to use a different tune. If you tune for 100% e85 then delude the mix with 91 you're going to be running rich, and may have too much timing for the lessened octane. Or if you tune for a 50/50 mix, and then run 100% you'll run too lean.

The way the stock "flex-fuel" vehicles get away with it is by giving the O2 feedback a quicker response time and more discression over the control. Since the O2's really read in "lambda" they're after a specific voltage, reguardless of the fuel type used.

This being said, depending on your system, and the controll alotted to the O2FB, you can very the mixtures without any problems. Stock ecu's usually have a +/- 20% discression. But if you stay close or past that 20% it will trip a CEL for rich/lean bank1/2 code...

UPP

tabasco122 · 10-26-2007, 03:25 AM

not a single station has it in LA... amazing...

STC_RT · 10-26-2007, 11:04 PM

Hey,

I don't know if E85 is the way to go. Yes, its better for the environment and yes, its 'cheaper' (per gallon). Alot of dealerships and gas stations up here in MN offer and sell E85 and 'flexfuel' cars. From the people I talk to that own these, most state that although you pay less per gallon the car uses a higher volume of fuel than if you were running 87 or 89 octane gas. Most have told me they break even cost wise, at best. I think E85 for the most part is a good idea, but I'm not looking to pay anything to convert. Take it for what it is, ask more people that run off it.

a2j · 10-29-2007, 05:12 PM

just FYI not about S/3 but still.......

http://www.autobloggreen.com/2007/08...y-car-use-e85/

leet · 10-30-2007, 12:30 PM

Quote:

Originally Posted by STC_RT

Hey,

I don't know if E85 is the way to go. Yes, its better for the environment and yes, its 'cheaper' (per gallon). Alot of dealerships and gas stations up here in MN offer and sell E85 and 'flexfuel' cars. From the people I talk to that own these, most state that although you pay less per gallon the car uses a higher volume of fuel than if you were running 87 or 89 octane gas. Most have told me they break even cost wise, at best. I think E85 for the most part is a good idea, but I'm not looking to pay anything to convert. Take it for what it is, ask more people that run off it.

you're missing the point, it's 105 octane, I was daily driving 20 lbs of boost on an E85 mix, it's good stuff

a2j · 10-30-2007, 02:22 PM

Quote:

Originally Posted by leet

you're missing the point, it's 105 octane, I was daily driving 20 lbs of boost on an E85 mix, it's good stuff

yes, thats exactly right.

race gas substitute....

have you heard about E85 powered Lotus? 1.8L supercharged engine that makes 260hp? that just a test version but still...

Carcharodont · 10-30-2007, 11:22 PM

better yet, does anyone know the effects of adding acetone to this E85? Would like to know if there are any drastic side effects since it's different from gasoline and whether you will still get a substantial increase in gas mileage.

10-20-2007, 03:04 PM	#31 (permalink)
ver fer Forum Member Join Date: Jul 2002 Location: Oshkosh,WI Trader Rating: (3)	Re: E85 Powered VR4? The kit looks like it's just a box that plugs in between the ECU and the injectors to lengthen the injector pulse. Unfortunately the stock fuel system will not be able to keep up with the fuel demand. You would still need a bigger pump and injectors. __________________ '94 vr4 - gutted precats-no main cat/ cheap-ass catback w/ebay fartcans/ custom dp/ hotwired walbro pump/ 13T's/ E-manage/ PTE 680cc injectors/ Blitz sbc i-d/ SBC DXD clutch/ Unorthodox flywheel/PST CFDS/18" Fittipaldi Forces Falken GR Beta FK-451

10-20-2007, 04:21 PM	#32 (permalink)
Ondontii SOHC you in the FACE Join Date: Feb 2005 Location: Seattle and SaltLake Trader Rating: (0)	Re: E85 Powered VR4? A guy here just finished swapping over to e85 in his na-t supra. He is very happy. No more race gas __________________ Brent 1992 Duster -13.9@107.4 - 5psi - 6g72 3.13L "built" SOHC, Precision T67 P-trim, Tial 38mm open dump, 3" downpipe, 20x12x3" evo style intercooler, 7:1 compression, balanced, shot peened rods, heavily ported heads (+40% on flowbench), Ferrea Competition Plus +2 +1 stainless valves, Nielson Vintage 278 duration custom turbo cams, Custom Ram Style short runner intake manifold, Walbro 255hp, 6*47# injectors, +0.096" Forged Venolias, Total Seal chrome gapless top rings, Fidandza Flywheel, Clutchnet 3 puck solid hub, OBX Helical LSD, Zeitronix wideband/EGT/Boost sensors, 100watt DevilsOwn Meth Kit. 1994 Spirit - 13.987@101.89 - 5psi- 6g72 SOHC, K27 Turbo

10-26-2007, 01:30 AM	#34 (permalink)
UPP Forum Member Join Date: Aug 2006 Trader Rating: (0)	Re: E85 Powered VR4? I've run e85 for a while now, with great results.... Yes, cold wether (CO) sux, and it's harder to start, but you can't have your cake and eat it too!! That's just one of the characteristics of alcohol, it doesn't vaporize in the cold very well. So I crank a little longer....I can deal with that for the added boost. I also have a customers evo and an employee running it on his honda. Cost wise, it's really nothing. You pay ~30% less, but you use ~30% more. You do need something to tune it, I use AEM, but for whatever the mixture of e-85 vs 91 (or 93,104,110) you have to use a different tune. If you tune for 100% e85 then delude the mix with 91 you're going to be running rich, and may have too much timing for the lessened octane. Or if you tune for a 50/50 mix, and then run 100% you'll run too lean. The way the stock "flex-fuel" vehicles get away with it is by giving the O2 feedback a quicker response time and more discression over the control. Since the O2's really read in "lambda" they're after a specific voltage, reguardless of the fuel type used. This being said, depending on your system, and the controll alotted to the O2FB, you can very the mixtures without any problems. Stock ecu's usually have a +/- 20% discression. But if you stay close or past that 20% it will trip a CEL for rich/lean bank1/2 code... UPP __________________ WWW.UPPCOS.COM

10-26-2007, 03:25 AM	#35 (permalink)
tabasco122 Anti-Rice Join Date: Jul 2006 Location: Houma, LA Drives: '08 Mitsu Lancer GTS Trader Rating: (0)	Re: E85 Powered VR4? not a single station has it in LA... amazing...

10-26-2007, 11:04 PM	#36 (permalink)
STC_RT New User - Please be kind Join Date: Oct 2007 Location: Duluth, Minnesnowta Drives: '95 Stealth R/T - NA Trader Rating: (0)	Re: E85 Powered VR4? Hey, I don't know if E85 is the way to go. Yes, its better for the environment and yes, its 'cheaper' (per gallon). Alot of dealerships and gas stations up here in MN offer and sell E85 and 'flexfuel' cars. From the people I talk to that own these, most state that although you pay less per gallon the car uses a higher volume of fuel than if you were running 87 or 89 octane gas. Most have told me they break even cost wise, at best. I think E85 for the most part is a good idea, but I'm not looking to pay anything to convert. Take it for what it is, ask more people that run off it.

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10-29-2007, 05:12 PM	#37 (permalink)
a2j Driving While Ukrainian Join Date: May 2007 Location: WI Drives: Red Car Trader Rating: (1)	Re: E85 Powered VR4? just FYI not about S/3 but still....... http://www.autobloggreen.com/2007/08...y-car-use-e85/

10-30-2007, 11:22 PM	#40 (permalink)
Carcharodont Forum Member Join Date: May 2007 Location: Texarkana, TX Drives: '91 Kutani Pearl TT Trader Rating: (1)	Re: E85 Powered VR4? better yet, does anyone know the effects of adding acetone to this E85? Would like to know if there are any drastic side effects since it's different from gasoline and whether you will still get a substantial increase in gas mileage.