Thread: E85? I need facts

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  1. #1 E85? I need facts 
    GTP Level Member OrangeL67's Avatar
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    Hello people. I posted a similar thread on cgp and I need people who have done an e85 conversion to help me out here. I am tuning for e85 soon but this thread is purely about POWER.

    I am planning to use my car as my "toy" mostly for the summer, but I would like to drive in the winter if it is necessary. I am more-so concerned with gains above everything else. So, on to my question.

    Is there a solid %Percentage, or an average horsepower figure that most L67's gain while switching to E85?

    I'm going to try my best to get a pre and post e-85 dyno for my setup so I we can compare numbers and find out what % I gained.

    If anyone can post results in form of dyno numbers or trap speed & 1/4 mile time. I'd like to see how these 3800's are racting to e85.

    (oh and don't forget mods!) Mine are in my sig

    VS cam build 13.01@107 316whp/ XP build #1 12.78@110 334whp/ XP build #2 12.56@113 347whp
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  2. #2 Re: E85? I need facts 
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    well?
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  3. #3 Re: E85? I need facts 
    youtu.be/xhrBDcQq2DM FoSHO99's Avatar
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    You will see gains either way but it depends on how you tune it to see just how much more you can gain. 109 octane on the summer blend, cooling properties of E85 will give you plenty of power to take advantage of. It can also be very forgiving, i had a weak fuel pump, ran a 12.9 @110 on stock motor with afr's in the mid 13's most of the time, low timing on ~10 psi without knock.
    2001 GTP PT61 Turbo, E85, Stock Motor
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  4. #4 Re: E85? I need facts 
    GTP Level Member OrangeL67's Avatar
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    Quote Originally Posted by FoSHO99 View Post
    You will see gains either way but it depends on how you tune it to see just how much more you can gain. 109 octane on the summer blend, cooling properties of E85 will give you plenty of power to take advantage of. It can also be very forgiving, i had a weak fuel pump, ran a 12.9 @110 on stock motor with afr's in the mid 13's most of the time, low timing on ~10 psi without knock.

    Great info right here

    NOBODY ELSE RUNNING E85 WITH SOME GOOD POWER INFO!!???

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  5. #5 Re: E85? I need facts 
    GrandPrix Junkie redlinepontiac's Avatar
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    hit up Robert Lamp on FB, he just tuned his on E85 he could give you a solid answer
    RayRay
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  6. #6 Re: E85? I need facts 
    youtu.be/xhrBDcQq2DM FoSHO99's Avatar
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    Quote Originally Posted by redlinepontiac View Post
    hit up Robert Lamp on FB, he just tuned his on E85 he could give you a solid answer
    Adam Murphy tunes his car.


    Your question is kinda vague, you might have more specific questions once you make the switch but something to keep in mind is that E85 or ethanol absorbs water, I drove mine on E85 one winter and all was fine, it's when I stored it that i had some problems. I would look on clubgp tuning section for some tricks to help in colder weather or cold starts, there are a few different tables to play with as well.

    It is very easy to make the switch work well with the aid of a wideband and a tuner. Understanding the blend you are getting at different times of the year will help you as well.
    2001 GTP PT61 Turbo, E85, Stock Motor
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  7. #7 Re: E85? I need facts 
    GTP Level Member OrangeL67's Avatar
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    Quote Originally Posted by redlinepontiac View Post
    hit up Robert Lamp on FB, he just tuned his on E85 he could give you a solid answer
    Thank you Sir! Will do

    Quote Originally Posted by FoSHO99 View Post
    Adam Murphy tunes his car.


    Your question is kinda vague, you might have more specific questions once you make the switch but something to keep in mind is that E85 or ethanol absorbs water, I drove mine on E85 one winter and all was fine, it's when I stored it that i had some problems. I would look on clubgp tuning section for some tricks to help in colder weather or cold starts, there are a few different tables to play with as well.

    It is very easy to make the switch work well with the aid of a wideband and a tuner. Understanding the blend you are getting at different times of the year will help you as well.
    Thanks for the info. I'm very familliar with the qualities, pro's, cons, chemical properties, and effects of e85. The question is pretty straight forward. I just want to know how much power can be made in an l67 by switching to e85, and tuning without adding any other mods. Rather it be a measurement of percentage% or comparison of 1/4 mile times & trap speed.

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  8. #8 Re: E85? I need facts 
    GTP Level Member OrangeL67's Avatar
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    Quote Originally Posted by redlinepontiac View Post
    hit up Robert Lamp on FB, he just tuned his on E85 he could give you a solid answer
    Just got in touch with him. He says it's an easy 30 WHP gain if you have a good tune! Now that's what the F I'm looking for

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  9. #9 Re: E85? I need facts 
    Donating Users gtpsleeper's Avatar
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    Quote Originally Posted by OrangeL67 View Post
    Just got in touch with him. He says it's an easy 30 WHP gain if you have a good tune! Now that's what the F I'm looking for
    thats what my butt dyno told me when i switched... i have also noticed a great difference in engine temp not going very high on the warmer days...
    "My car is a racecar like Planet Fitness is a gym...."

    proud mark VIII victim!!! suck it...
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  10. #10 Re: E85? I need facts 
    GTP Level Member OrangeL67's Avatar
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    UPDATE

    Just found a pcm compatible with my 97 (kind of hard to get ahold of). I'm gonna be sending it off to Dyno Brian for a mail order tune. And I should have her running on corn in a few days

    I know a couple very good street tuners that I may have dial my tune in after the mail order. (If for some reason I cannot make the trip to Indiana)

    BAD NEWS:
    I took a trip to Dewitt service center today, and the dyno is not availible for a week or so

    I wanted to run my car to get a comparison of numbers on 93 vs e85. However, I will still have my 93 tuned pcm done by Mr. Ryan C. Himself.

    GOOD NEWS:
    I can switch back to the 93oct tune and see the difference anytime.

    Will update when my car is corn fed

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  11. #11 Re: E85? I need facts 
    GrandPrix Junkie redlinepontiac's Avatar
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    E85 = poor mans race gas when used and tuned properly
    RayRay
    92 Turbo miata
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    02 lexus is300
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  12. #12 Re: E85? I need facts 
    GTP Level Member OrangeL67's Avatar
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    Update! So my E85 mail order tune from Dyno Brian has arrived.

    I've hooked it up and took it on a spin today. I had about 1/8 a tank of 93 in the car, and I put 4 gallons of e85 in. I know that this mixture is no where near what I will want for the tune, but It was enough to get the car started and going.

    Obviously, no WOT pulls yet, and I have the 3.3 pulley on and will work my way down as the car runs better. The car feels like it's miss-firing under boost on a 3.3 pulley, So I'm taking it easy as the 93 octane is probably making the mixture VERY rich. I plan to run the tank completely empty, then fill back up on e85 before any WOT.

    I've noticed that my gas mileage is AMAZING! Yes I said it. I'm pulling 32 MPG cruising around at 75-80 on the highway on an E-85 calibration. However, I'm sure once I start getting on it, the story will change. I'm seeing better cruise MPG on this tune than my 93 octane tune (25-27HWY MPG) and I'm only seeing 31* of timing at cruise. So whatever Brian did, I like it... So far at least.

    The car feels noticeably stronger in the low RPM's scooting around town when i accelerate (and this is comparing the 3.3 pulley on E85 to the 2.8 on 93). After this tank is drained, I'm going to put 1/8 tank of e85 in and drain it again then refill and go WOT and hopefully no rich Knock or miss-fires on the 3.3. If it feels good, I'm gonna put the 2.8 see what this fuel is all about.

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  13. #13 Re: E85? I need facts 
    The Blue One blueguy's Avatar
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    LOL...your supposed to go down in pulley sizes...not up. Your doin' it wrong broske...I woulda gone from the 2.8" to a 2.55"
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  14. #14 Re: E85? I need facts 
    I AM PEWPIN! rynoman03's Avatar
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    30whp eh... Man i so wanna do this. But there's not enough e85 stations around me to do this. I drive 60 miles a day round trip and to get stranded without a e85 station wouldn't be fun. There's one literally blocks from my house but no where else on my way to work or back from work. SADFACE
    1999 GTPHP Tuned, Ported SC/TB, 42#'s, SSAC's, ZZP Modded 1.9's/LS6 Springs/Manley's, TransGo Shift Kit, Poly Uppers, KYB GR2's/Springtech's. - 231k and traded it in. - Gone
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  15. #15 Re: E85? I need facts 
    GrandPrix Junkie redlinepontiac's Avatar
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    carry a gas tuned PCM in the car bam problem solved
    RayRay
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  16. #16 Re: E85? I need facts 
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    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  17. #17 Re: E85? I need facts 
    GTP Level Member OrangeL67's Avatar
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    Quote Originally Posted by bluegtp91 View Post
    LOL...your supposed to go down in pulley sizes...not up. Your doin' it wrong broske...I woulda gone from the 2.8" to a 2.55"
    I know blue! Lol. I had the 3.3 on there to be cautious b/c of the small amount of 93 still in the tank.

    I've been thru about a tankand a half and the 2.8 is back on.

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  18. #18 Re: E85? I need facts 
    GTP Level Member OrangeL67's Avatar
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    So the mixture is pretty much flushed of 93 octane and should be mostly E85 now. The car hauls @ss to say the very least! It's much quicker especially on the top end. I'm running a 2.8 now currently with no KR and 19.5* of timing at wot. I plan to get it dynoed soon and see where I'm sitting

    I know for sure there is a lot more power to be made, but I think the tune is pretty damn good for a mail order.

    I'm not gonna push for max power, but I would like to see 22* of timing KR free with a 2.8 on the street and a 2.6 or 2.55 on the track

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  19. #19 Re: E85? I need facts 
    DUI BABY Bio248's Avatar
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    screw timing. get it to 20* and then run more boost.

    that way you can also just switch pulleys whenever you want for fast mode and for street mode. no tune changes at all.
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  20. #20 Re: E85? I need facts 
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    Excuse my noobness here but what all do you have to do to run the e85? I mean is there a computer/brain box you have to wire into the car and maybe something about different injectors?

    My moms boyfriend is always braggin about the e85 prices when he fills up his Tahoe, then I have to explain you still only get 20mpg to bring him back to reality.

    We have a few e85 stations around here but not a bunch. The carrying another pcm with you is a good idea actually in case you do get stranded.

    Not only does a 30hp increase sound enticing but the price of e85 does too. Any links of the parts you need to do this? Sounds like Orange is reeping the benefits already with a base mail order tune.
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