Thread: The defacto guide to tuning your car for e85.

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  1. #161 Re: The defacto guide to tuning your car for e85. 
    GrandPrix Junkie SgtMarshal's Avatar
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    i'm going to switch to 100% ethanol, should be interesting to see what difference it makes at the drag strip. I ran a 9.77 best time on E70.
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  3. #162 Re: The defacto guide to tuning your car for e85. 
    GrandPrix Junkie SgtMarshal's Avatar
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    pure ethanol here I come, for the record it's denatured with sulfur, so not pure, but still E100.

    any idea what cylinder gain I should use?
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  4. #163 Re: The defacto guide to tuning your car for e85. 
    Donating Users bandook's Avatar
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    I would say around 36. It's about a 20% increase over the change from regular e10 to e85.
    Top Swapped 01 Imp
    VS (very small?) cam, SD Headers, 2.8" pulley, 29į, ported everything, E85, AEM water/meth, Deka 60's, HPT tuned
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  5. #164 Re: The defacto guide to tuning your car for e85. 
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    If Frosty is still here, Do you have the address to that Base Fuel > Crank > Coolant temp???? HPT support will not convert a bin for me. In order for them to add it to the HPT Editor they need the address. (Whatever that is) any help would be appreciated.
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  6. #165 Re: The defacto guide to tuning your car for e85. 
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    Stoich is available to set on my 07 so I may try that. Iíve tried all the other setups and it drives like shiiiiiit during wot. I canít figure this E85 crap out. I have the e85 pump and 60# injectors, 3.0 pulley, 85mm maf. Any suggestions?
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  7. #166 Re: The defacto guide to tuning your car for e85. 
    Donating Users bandook's Avatar
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    You don't want to just set stoich. Leave it at 14.7. Are you logging with a wideband and adjusting your MAF?
    Top Swapped 01 Imp
    VS (very small?) cam, SD Headers, 2.8" pulley, 29į, ported everything, E85, AEM water/meth, Deka 60's, HPT tuned
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  8. #167 Re: The defacto guide to tuning your car for e85. 
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    Ok so leave stoich alone? I will put it back to 14.7. I do have a wideband logging as well as ability to change maf settings. I do have a 85mm maf in there.
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  9. #168 Re: The defacto guide to tuning your car for e85. 
    Donating Users bandook's Avatar
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    Yeah. Then just follow this guide for rest of settings. If it's running crappy up top, how's your fuel?
    Top Swapped 01 Imp
    VS (very small?) cam, SD Headers, 2.8" pulley, 29į, ported everything, E85, AEM water/meth, Deka 60's, HPT tuned
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  10. #169 Re: The defacto guide to tuning your car for e85. 
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    I canít do the cold start part with tiny tuners. I canít get my hptuners switched over to a bin file.

    Iíll try to follow this exactly again and see what I come up with. :/
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  11. #170 Re: The defacto guide to tuning your car for e85. 
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    All your doing is enter your inector data, cylinder gain to 1.2-1.3 and tune like normal. You don't need tiny tuners.
    Top Swapped 01 Imp
    VS (very small?) cam, SD Headers, 2.8" pulley, 29į, ported everything, E85, AEM water/meth, Deka 60's, HPT tuned
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  12. #171 Re: The defacto guide to tuning your car for e85. 
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    Ok so I screwed up getting bigger injectors. Installed and ready to go. Does anyone have the procedure to get this running?

    I put on Deka injectors, 3.0 pulley, and a high flow pump.
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  13. #172 Re: The defacto guide to tuning your car for e85. 
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    Sorry I canít follow along very closely. I am going through a brain procedure 3x a week now.
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  14. #173 Re: The defacto guide to tuning your car for e85. 
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    Iím trying to find the Siemens Deka settings. No luck.
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  15. #174 Re: The defacto guide to tuning your car for e85. 
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    So just cylinder gain adjusted to 1.3 and then all the other tuning, like normal????
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  16. #175 Re: The defacto guide to tuning your car for e85. 
    Donating Users bandook's Avatar
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    You need to first put in the injector flow rate for the dekas. Then, yes, cylinder gain and tune the MAF like normal. What have u done so far? Is the car running, idleing?
    Top Swapped 01 Imp
    VS (very small?) cam, SD Headers, 2.8" pulley, 29į, ported everything, E85, AEM water/meth, Deka 60's, HPT tuned
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  17. #176 Re: The defacto guide to tuning your car for e85. 
    GTP Level Member 04lss's Avatar
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    I finally got a wideband hooked up on my regal , and on e85 im seeing Gasoline AFRs, Stoich is still set to 14.7 in the tune. Should i adjust that down to 9.7 for the e85?
    2017 GTI 6mt 320whp 400wtq , 2012 Volvo S60 T6 300hp of Swedish safety, (Sold) 2019 Ford Mustang GT. 460 screaming eagles. 2004 Buick Regal GS "Gramps" Intercooled, corn fed, ported g3 m90, 1.9 rockers, 80# injectors.
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  18. #177 Re: The defacto guide to tuning your car for e85. 
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    Bandook. What are the numbers for the Deka injectors?
    Itís idling with a hard start. I have only put the gain to 1.3. Thatís the only thing in the tune that I have changed. I need the other settings.
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  19. #178 Re: The defacto guide to tuning your car for e85. 
    GrandPrix Junkie SgtMarshal's Avatar
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    don't touch the stoich, I ran though this earlier in this thread I think, or someplace on here, afr is afr regardless of fuel type. you are making it more complicated than it needs to be.
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  20. #179 Re: The defacto guide to tuning your car for e85. 
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    What injectors do you have? I set my 80s by caclulating the ratio between stock and those.
    stock is 32 iirc and mine are 80s The 80s are roughly 2.5 times bigger than stock, so i multiplied the injector flow rate by 2.5 and got a nice starting point.
    2017 GTI 6mt 320whp 400wtq , 2012 Volvo S60 T6 300hp of Swedish safety, (Sold) 2019 Ford Mustang GT. 460 screaming eagles. 2004 Buick Regal GS "Gramps" Intercooled, corn fed, ported g3 m90, 1.9 rockers, 80# injectors.
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  21. #180 Re: The defacto guide to tuning your car for e85. 
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    Quote Originally Posted by SgtMarshal View Post
    don't touch the stoich, I ran though this earlier in this thread I think, or someplace on here, afr is afr regardless of fuel type. you are making it more complicated than it needs to be.
    thats good to know, I was afraid i was beating my car with bad fueling. I keep seeing these guides that say stoich for e85 is 9.6 and that WOT should be 7.7-8 and i freaked a little . Even my mustang is showing 9 on its wideband. for ex https://www.ecmtuning.com/wiki/e85fuel
    2017 GTI 6mt 320whp 400wtq , 2012 Volvo S60 T6 300hp of Swedish safety, (Sold) 2019 Ford Mustang GT. 460 screaming eagles. 2004 Buick Regal GS "Gramps" Intercooled, corn fed, ported g3 m90, 1.9 rockers, 80# injectors.
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