Road course/Autocross peeps running E85 tuning?

[Zinc03svt]

How many people besides the straight line crowd are using E85 tuning? Do not hear many people talking about it in this area.

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[PoppinJ]

I've run into several people who trailer their cars that bring e85. I prob burn about 30 gal during an HFPE. It seems like it would be a pain at most tracks though if they didn't have it on site.

 

[HopfibreSn]

Most of the events I go to are local, since there's E85 available here I leave it rather than switch to the 93 tune.

 

[Robracer]

I will probably go with E-85 when there are more gas stations available with E-85. I live in the north Atlanta metro area and not a lot around

 

[Zinc03svt]

Crazy more tracks do not carry it. It is a great fuel for lower cylinder temps and knock elimination once tuned for it. Only downside I see is it burns 25-30% more fuel than pump aka lower mpgs.

 

[Robracer]

Crazy more tracks do not carry it. It is a great fuel for lower cylinder temps and knock elimination once tuned for it. Only downside I see is it burns 25-30% more fuel than pump aka lower mpgs.

Its around a dollar less a gallon over 93 octane

 

[Zinc03svt]

Its around a dollar less a gallon over 93 octane

Yep, and it actually comes out a wash with the lower mpgs, but the added benefit of 103-105 octane. I run it year around.

 

[pgonza2723]

I've run E85 in all my events so far. Basically get 2 - 30 minute sessions in before needing a refuel. This last event was during the Texas July summer with temps above 100* and I feel it helped keeping everything cool.

 

[Plimmer]

I run 50/50 e85, gives me the best of both worlds. Basically carry in 12.5 gallons from a nearby e85 station, and then blend at the track’s 93 pump.

 

[Zinc03svt]

I run 50/50 e85, gives me the best of both worlds. Basically carry in 12.5 gallons from a nearby e85 station, and then blend at the track’s 93 pump.

Are you tuned for 50/50 mix on flex tune?

 

[Plimmer]

I have HPTUNERS, so I have a road course tune set up for 50/50, but I think a flex tune would work just as well.

 

[Grintch]

Check the rules if your plans include autocross or TT. SCCA generally outlaws it for most classes. Pretty sure NASA prohibits it in the lower classes as well.

 

[Zinc03svt]

Check the rules if your plans include autocross or TT. SCCA generally outlaws it for most classes. Pretty sure NASA prohibits it in the lower classes as well.

No kidding. Cooler cylinder temps, knock delete, more timing, and under $2 bucks a gallon. Those organizations need to get with the times...?

 

[Performance nut]

I've run E85 in all my events so far. Basically get 2 - 30 minute sessions in before needing a refuel. This last event was during the Texas July summer with temps above 100* and I feel it helped keeping everything cool.

I see you running at COTA in your profile pic. You got two sessions there? Where do you go refuel at?

 

[Bluemustang]

I plan on running some E85 this year when I go to the track, mainly for the knock resistance. It might give me a little boost coming out of the slow corners, too, but whether that will help my times or not IDK.

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