E-85 Racers in California

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joes68340s

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With the giant leap in race fuel im considering the conversion. Im just wondering about the consistency from the pump and season.
 
I seem to recall an E-85 Post not that long ago
 
Here in Indiana, in the warm weather months, the e85 at my local gas station hovers around 87%. I only drive my car in the warm months, but I have been told that the ratio can/does drop significantly when the weather gets colder (like to 60-70%). The nice thing is, e85 is pretty forgiving on the tune...I would just get a wideband (pretty much required in my opinion for tuning e85 carbs) and keep an eye on it.
 
Thanks. Just wondering im running aluminum 3/8 line will that be OK .
Yes.
I’ve tested e85 here in so cal and I’ve seen as high as 90 and as low as 70 +or- a few % not enough to effect the tune that much unless you’re on the ragged edge.
 
Our own 70aarcuda here has three race cars on the “stank fuel” (sorry…. That stuff stinks!! ). He buys it local in Vegas. Shiloh Davies ran his heads up small block on ethanol for a long time at Irwindale as does Rod McGregor in his 5.40 gen3 Hemi. I considered making the switch years ago, but my local availability was non existent. Even had a carb but sold it off.
 
Tested E85 today at local station it tested at 75. I figure its still winter blend. Hope it goes up by end of April.
 
The percentage of ethanol not only affects the tune, but also the octane rating....... which is a bigger concern for those that need it.
 
The last several years our track has hosted a group of racers that travel to the next track in their race cars. Know as the Rocky Mountain Racers l believe. A lot of them run E85. Most of them prefer to have a mixture of 83 percent or better. Most of the time they are hard pressed to find good E85 between tracks. They can run lessor but have to detune their setup. Most people don't realize that E85 has a cooling effect on the motor.
Since I am the fuel dealer at my track I go out of my way to provide them with quality as inexpensive as possible fuel without having to purchase race E85 from me. I sell VP race fuels. Luckily there is a group of fairly local stations I can purchase it at. We can even get E98.
 
E-85 advantages are with higher compression builds. You will need to change metering blocks in carb(s) (or fuel map with EFI) to accommodate the higher fuel to air ratios. E-85 summer blend is about equivalent to 100 octane fuel.

Expect to get 30% to even as high as 50% less fuel economy. But at 300-400% less in cost compared to race gas? It's a bargain. I am running 1/2 fuel lines to fuel cell for strip/street build. So volume worries non existent.

I don't see much advantage for daily driver use.

JMO
 
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