The Staff of Motorsport Marketing
The Staff of Motorsport Marketing Writer
4/29/20 12:45 p.m.

Paid article presented by Sunoco.

 

The Rule: A lot of enthusiasts autocross in the SCCA Street and Street Touring classes, where the rules require a “fuel which is ‘Federally approved for use on public highways,’ and which does not exceed an octane rating of 93 AKI (A…

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David Elfering
David Elfering GRM+ Memberand New Reader
11/16/21 8:37 a.m.

Every time I see a site discussion about E85 or even E15 fuel and read through the details, it talks me out of farting with it. It would be interesting to know if there real benefits other than hopeful butt dyno ones. 

frenchyd
frenchyd UltimaDork
11/16/21 9:08 a.m.

In reply to David Elfering :

Then there is the matter of enforcement. 
  How often do you see engines torn down at any event?   How often do you see fuel sampled? Do they even have the ability to determine what's in the fuel?   It's not just alcohol that can give an edge. 
    Maybe because Vintage racing is gentlemen ( and a few ladies) racing each other. There is no prize money or really any advantage to cheating. In fact In 40 plus years I've never seen anybody tear down an engine or sample fuel.  
     I've built small block Chevy engines up to 430 cu in. With parts straight off NASCAR  and WoO shelves.  I've also successfully raced  ( and won) with a Target master engine straight out of the crate.  
  It's a rare entrant who doesn't have at least something of dubious legality. The only question is will that person get caught and lose that $15 plastic cup. 
As far as advantage of E85?  You don't read Hot Rod  or watch U tube do you?  Or even read the articles in GRM ? 
      

z31maniac
z31maniac MegaDork
11/16/21 10:51 a.m.
David Elfering said:

Every time I see a site discussion about E85 or even E15 fuel and read through the details, it talks me out of farting with it. It would be interesting to know if there real benefits other than hopeful butt dyno ones. 

It's super simple. Most cars for E85, you literally just put in the GM fuel sensor, the rear O2 plug monitors for E content and tune. 

For a BRZ, you can call COunterspace Garage and get a full tune and kit for around $1300 IIRC.

I just used the OFT since I used it on my previous NC. It's a little more involved, but still not difficult for the quick 15-20whp pickup with no other mods. 

Colin Wood
Colin Wood Associate Editor
11/16/21 1:31 p.m.

In reply to David Elfering :

If you are looking for some actual hard data using E85, we were able to squeeze abut 20 extra wheel horsepower in our C5 Corvette project car–which you can read more about here: E85 Ethanol Fuel: How to Corn Your Way to More Horsepower

For additional information, here are some articles discussing E85 with our good friends at Sunoco:

jharry3
jharry3 GRM+ Memberand Dork
2/16/22 10:15 a.m.

 

When/where is this available?  

Ultra 94 Premium Gas - Nothing Less Will Do | Sunoco

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