Well I am going to E85 I have been tuning for it now for awhile and just wondering if any one else has tried or is running it and/or what they know
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Going E85
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 1fast99GTP |
Going E85 |
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GTP World Decorated Hero (1000 Club) Getting their hands dirty!!
kudo's master
Posts: 219 (07/04/09 05:33 AM) |
1999 Silvermist GTP, Mods so far,DHP Powertuner Custom-Tuned PCM
for E85 now!,Ubend and Resonator Delete with 3"pipe, 3" down pipe, Hollow Cat. 3" pipe to the Ypipe,
, 3.4 Pulley,AL 104s, 4" Fenderwell CAI, K&N Air filter 189,xxx miles!! 6000K HIDs 1/4 mile 13.72 99.3MPH
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gtpgtogofast |
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GTP World Chief Meteorologist (1000 Club) Old fart but knows their stuff!!
kudo's my friend kudo's
Posts: 1529 (07/04/09 08:10 AM) GTP World Influential Expert |
I used a tank of it once. I only tuned with my afc. The stuff does keep knock down. Your car will want to run super rich and if you have been tuning with it
i'm sure you have found that out. My problem with the stuff is it had terrible fuel mileage. I went from 28mpg in mixed driving on 93 octane to about 18-20
mixed driving on E85. I know alot of turbo guys run the stuff.
Yes I started to mod, didn't you?"...
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85XR7Project |
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GTP World Scholastic Virtuoso (700 Club) Getting their hands dirty!!
kudo's master
Posts: 405 (07/04/09 09:29 AM) |
Yes you get more horsepower but you lose gas mileage, mainly because there isn't as much stored energy in E85 and their is in Gasoline. Just thought
I'd throw that out there.
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gtpforever |
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GTPWORLD Moderator
THE BIG 10K CLUB!!! (10,000+ posts!)
Old fart but knows their stuff!!
Forced inducted kudo's
Posts: 11657 (07/04/09 01:23 PM) GTP World Owner/Administrator |
You have to have larger injectors to run it properly.
Troy 
Now driving....1998 Silvermist GTP with 155,000 miles! Current Mods: XP Hot cam, Stage 2 Ported Heads, Ported M90, 3.0" MPS, 42.5 Lucas flowmatched Injectors, LS6 MAF, North* throttle body, TOG headers, Intense Shift Kit, CAI, 180 T-Stat, DHP Powr Tuner. All rolling on a GMPP Handling Kit, Sprint 1.6" lowering Springs on SpringTech Struts with an SD rear wing and SD front airdam! 
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85XR7Project |
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GTP World Scholastic Virtuoso (700 Club) Getting their hands dirty!!
kudo's master
Posts: 407 (07/04/09 05:35 PM) |
Troy is 100% right.
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1fast99GTP |
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GTP World Decorated Hero (1000 Club) Getting their hands dirty!!
kudo's master
Posts: 221 (07/05/09 04:57 AM) |
You have to have larger injectors to run it properly.See I here mixed answers on that Troy, on my scans so far my STFT & LTFT are locking in at 0 or close and the o2s are in the 950s and thats with my stock injectors so thats were I am confused but thats at WOT at idle STFT are 0 to 0.785 but the LTFT are +14.00s so I have been messing with the MAF tables and the PE AFR and I will see what happens
1999 Silvermist GTP, Mods so far,DHP Powertuner Custom-Tuned PCM
for E85 now!,Ubend and Resonator Delete with 3"pipe, 3" down pipe, Hollow Cat. 3" pipe to the Ypipe,
, 3.4 Pulley,AL 104s, 4" Fenderwell CAI, K&N Air filter 189,xxx miles!! 6000K HIDs 1/4 mile 13.72 99.3MPH
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85XR7Project |
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GTP World Scholastic Virtuoso (700 Club) Getting their hands dirty!!
kudo's master
Posts: 409 (07/05/09 09:26 AM) |
All the conversions I've seen (I've seen alot since I'm in the Ethanol capital of the world
) always have larger injectors.
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copterdoctor |
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GTPWORLD Moderator
GTP World Top Brass (3000 Club) Old fart but knows their stuff!!
kudo's parade!!
Posts: 2901 (07/05/09 11:06 AM) GTP World Top Brass |
E85....
It has less energy per volume than Gasoline (although 87 octane has the same energy per volume as 93 octane). This means to get the same HP out of E85 as you do with 93, it requires more fuel. (hence worse mileage and the need for higher flow injectors of anything smaller than a 3.4" pulley I think) E85 is something like 115 octane, so it has great anti-detonation characteristics that allow you to run more boost since it's able to absorb more heat energy before ignition. So you can get higher HP out of it by running more boost which kind of offsets the less energy per volume comparison to gasoline. I think it was Glanzer that was running it, but I don't remember. We've actually had a couple of members on here run E85 pretty successfully.
-Matt
+210,000 miles and counting 3.4" pulley, Full SLP Exhaust + Magnaflow resonator, ZZP PCM, Wizaired inspired CAI, 180* thermostat, AL605, Autotap GM enhanced, EGR/rear O2 delete, GM handling upgrade, F-body brakes, modified gen 1 projectors, 18"x9" +36offset Saleen rims. In the garage: Eibach springs, tubular rear trailing arms |
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gtpforever |
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GTPWORLD Moderator
THE BIG 10K CLUB!!! (10,000+ posts!)
Old fart but knows their stuff!!
Forced inducted kudo's
Posts: 11661 (07/05/09 12:40 PM) GTP World Owner/Administrator |
1fast99GTP wrote: HOLY CRAP!!! STFT you do not need to be worrying about its the LTFT that need to be at 0 when WOT so you being at +14.00 is WAYYYYY OOOOFFFFFFFF!!!!! Whether its cause of the injector issue I do not know but damn that a crazy number!
Troy
Now driving....1998 Silvermist GTP with 155,000 miles! Current Mods: XP Hot cam, Stage 2 Ported Heads, Ported M90, 3.0" MPS, 42.5 Lucas flowmatched Injectors, LS6 MAF, North* throttle body, TOG headers, Intense Shift Kit, CAI, 180 T-Stat, DHP Powr Tuner. All rolling on a GMPP Handling Kit, Sprint 1.6" lowering Springs on SpringTech Struts with an SD rear wing and SD front airdam!
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gixer2000 |
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GTPWORLD Moderator
GTP World Top Brass (3000 Club) Old fart but knows their stuff!!
kudo's my friend kudo's
Posts: 3000 (07/05/09 01:51 PM) GTP World Funk Kid Dynomite |
well your first issue is that your watching your fuel trims on a scanner. get a wide band before you blow it up
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1fast99GTP |
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GTP World Decorated Hero (1000 Club) Getting their hands dirty!!
kudo's master
Posts: 223 (07/06/09 03:49 AM) |
Ok so I fixed the LTFT and they are much better I went out tonight racing and killed a moded 05 SER Nissan Altima, 09 CLK500 AMG,09 BMW 645 94 5.0 moded and
some Hondas and shit like that it felt very good and thats with 4 people in the car lol we ran to about 130+ MPH only thing I hate is the gas mileage I
averaged 14.5MPG and thats very shitty lol so I have more tunning to do but yeah it was fun lol
1999 Silvermist GTP, Mods so far,DHP Powertuner Custom-Tuned PCM
for E85 now!,Ubend and Resonator Delete with 3"pipe, 3" down pipe, Hollow Cat. 3" pipe to the Ypipe,
, 3.4 Pulley,AL 104s, 4" Fenderwell CAI, K&N Air filter 189,xxx miles!! 6000K HIDs 1/4 mile 13.72 99.3MPH
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gtpgtogofast |
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GTP World Chief Meteorologist (1000 Club) Old fart but knows their stuff!!
kudo's my friend kudo's
Posts: 1536 (07/06/09 10:28 AM) GTP World Influential Expert |
14.5 mph @ 130mph isn't bad. lol. E85 was the goverments answer to our gas problem. Sure it works but you will need more of it and in the end it won't
save any of us any money. Fact is it will probably cost more to run then regular gas. I would save a E85 tune for the track and just run 92 or 93 as a DD.
Yes I started to mod, didn't you?"...
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passingpower |
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GTP World Chieftan Old fart but knows their stuff!!
kudo achiever
Posts: 88 (07/06/09 10:38 AM) GTP World Cadet |
This has been covered on the HPtuner forums. Read these:
http://www.hptuners.com/forum/showthread.php?t=17154 http://www.hptuners.com/forum/showthread.php?p=165626 http://www.hptuners.com/forum/showthread.php?t=22448 Pay attention to what eficalibrator and RWTD advise, they both tune professionally. edit to fix links Anyone can be quick on an unlimited budget.
Last Edited By: passingpower
07/06/09 10:43 AM.
Edited 1 times.
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85XR7Project |
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GTP World Scholastic Virtuoso (700 Club) Getting their hands dirty!!
kudo's master
Posts: 410 (07/06/09 12:52 PM) |
I told you from the get go your gas mileage was going to suck and yet you're still suprised? As it has been said grain alcohol contains less energy than
gasoline so you need to burn more thus causing your shitty mileage...
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passingpower |
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GTP World Chieftan Old fart but knows their stuff!!
kudo achiever
Posts: 89 (07/06/09 01:42 PM) GTP World Cadet |
The E85 conversion makes sense for only a few reasons.
1. E85 is the ONLY fuel available. 2. You want to run 115 AKI and don't care about the cost. 3. E85 is cheap enough in your area to cover the cost of the lower gas economy AND the larger injectors AND the cost of reprogramming the PCM. None of those apply to me so, I haven't touched the stuff. I only had to cope with E10 being the only thing available. Anyone can be quick on an unlimited budget.
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85XR7Project |
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GTP World Scholastic Virtuoso (700 Club) Getting their hands dirty!!
kudo's master
Posts: 411 (07/06/09 02:14 PM) |
I get shit mileage on E-15 alone to be honest I think E85 is a darn joke. Sure you get a little horsepower but not enough to make up for the shit mileage,
injectors and PCM as Passingpower said.
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gtpforever |
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GTPWORLD Moderator
THE BIG 10K CLUB!!! (10,000+ posts!)
Old fart but knows their stuff!!
Forced inducted kudo's
Posts: 11671 (07/06/09 02:40 PM) GTP World Owner/Administrator |
I stick with race gas screw those other fuels!
Troy
Now driving....1998 Silvermist GTP with 155,000 miles! Current Mods: XP Hot cam, Stage 2 Ported Heads, Ported M90, 3.0" MPS, 42.5 Lucas flowmatched Injectors, LS6 MAF, North* throttle body, TOG headers, Intense Shift Kit, CAI, 180 T-Stat, DHP Powr Tuner. All rolling on a GMPP Handling Kit, Sprint 1.6" lowering Springs on SpringTech Struts with an SD rear wing and SD front airdam!
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glanzergtx |
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GTP World Untouchable (1000 Club) Old fart but knows their stuff!!
kudo's my friend kudo's
Posts: 1046 (07/07/09 04:44 PM) GTP World Communications Expert (500 Club) |
65# injectors with 30% more fuel and little adjustments here and there. I guy here in town has a XP cam, SSIC, 3.29 gears, PLOG, dp, 2.8 pulley with 0kr all
tuned for E85. Dyno'd at 330whp with 425 trq
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copterdoctor |
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GTPWORLD Moderator
GTP World Top Brass (3000 Club) Old fart but knows their stuff!!
kudo's parade!!
Posts: 2906 (07/07/09 09:09 PM) GTP World Top Brass |
well, the point of E85 was not to save us money.... it was to decrease our dependance on foriegn oil. E85 is in it's infancy right now, but once they start
using sweet grass or algea instead of corn for the source, then the costs will drop substantially.
I completely support it. I think it is an excellent alternative to burning processed oil. You have to think long term on this one. No short attention spans like the American Public's view on the "war in Iraq". We are in it for the long haul, so we might as well get comfortable.
-Matt
+210,000 miles and counting 3.4" pulley, Full SLP Exhaust + Magnaflow resonator, ZZP PCM, Wizaired inspired CAI, 180* thermostat, AL605, Autotap GM enhanced, EGR/rear O2 delete, GM handling upgrade, F-body brakes, modified gen 1 projectors, 18"x9" +36offset Saleen rims. In the garage: Eibach springs, tubular rear trailing arms |
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1fast99GTP |
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GTP World Decorated Hero (1000 Club) Getting their hands dirty!!
kudo's master
Posts: 227 (07/08/09 06:23 AM) |
Hell yeah ,I don't think my GTP has ever ran this good I am going to the track this week I will let you all know how I do.
1999 Silvermist GTP, Mods so far,DHP Powertuner Custom-Tuned PCM
for E85 now!,Ubend and Resonator Delete with 3"pipe, 3" down pipe, Hollow Cat. 3" pipe to the Ypipe,
, 3.4 Pulley,AL 104s, 4" Fenderwell CAI, K&N Air filter 189,xxx miles!! 6000K HIDs 1/4 mile 13.72 99.3MPH
Last Edited By: 1fast99GTP
07/08/09 06:45 AM.
Edited 1 times.
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GTPM90 |
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GTP World Textbook Author Old fart but knows their stuff!!
kudo's master
Posts: 255 (07/08/09 09:09 PM) GTP World Community-Minded Citizen |
If I had a E85 station anywhere near me, I would try it but its about 45 min away..... screw that, I run meth. injection, I can run 93 dd and 105 wot depending
on how I mix the stuff! I took of 5* kr when I put the kit on.
2004 Comp G : Wizaired CAI w/ AEM dryflow, ZZP 1.0 PCM, Gatorback w/ oversized tensioner, 3.5 3.6 MPS, Devils Own Meth Injection, Yella Terra 1.9RR, LS6 Valve
Springs, Manley retainers,180* drilled stat, 104's, autotap scanner and 0* KR
ZZP Tranny w/ 2750 stall GMPP Front and Rear Sway bar GMPP Trailing Arms 1/8 -- 9.2 w/ 2.1 -- 60ft |
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