Race fuel v Pump gas

[glover11]

Gloverey, you must be a female, you don't seem to mind posting things that are absolutely untrue even when anyone can scroll up and see that your statements are false. Detonation isn't a blown up engine. It is tiny specs on your plugs and next it shows up on your pistons outer edges. Its amazing how dead this forum has been... except the two posts Ive posted on in the tech section. Thank goodness for trolls to up the views on posts on here and at least make it somewhat entertaining to come back!

LMAO, I honestly get on here daily to see who your getting your panty's in a wad from. Your usually mad at someone or another...... AND THAT IS A FACT!

[save the racers]

Do a search for Wallace racing calculators They have an fuel mixing cal. to help find the octane you need.Some things you mix with racing fuel does need a blending agent to keep them together.Never had a problem with pump and race separating.

[fastford]

to the original poster, srt17 I think, you didn't say, but if you can run e85, that's the way to go, its 201 a gallon here, I converted our 500 holley my self with a kit bought off ebay for about $175 and it works great, just a thought, and hurst390 hit the nail on the head with AV fuel, we ran it in a blended form years ago in drag cars, but when they changed it , what ever it was, we stopped.

[dereksehi]

I guess I should have never mentioned AV gas as an option didnt realize it would stir this many problems up. That is however what I run.

[Hurst390]

I know of 1 guy 10 years ago(an amateur pilot) that ran it in a drag car(cause he could easily get it).It was in the Carolinas and a little higher elevation than here..lol I don't think he really had any problem with it that I know of but I do know his engine builder cut back on the compression so he could run it..I don't think the octane is calculated the same as pump/race gas.
e-85 is a good idea..take your quick fuel checker and buy it in bulk because from what I'm hearing around here it varies in percentage quite a bit..IIRC 1 guy said he's found it in the mid 70% range. up to high 80's. Otherwise you'll be chasing your ass week to week on jetting..
http://www.quickfueltechnology.com/s...test-tube.html

[Hurst390]

As far as the guy with 9.8-1 you really don't want to run straight race fuel if that's what your doing..if you don't have enough compression for a given octane your losing power and you'll end up with lead tracks on your plugs and a misfire..
If that is a flat top piston I would run 93 with a couple gallons of RF..If it's a dome and big chamber your gonna need more octane..as a general rule..

[Dirtmod13]

We tried e85 and had issues with the quality also. Went to classic non oxy mixed with e98 to get to a true e85. Way easier. Then e85 got banned so we moved the ethanol content down to 30% 3 gal e98 to 7 gallons of classic car 93 octane and worked great for us. It gives u the boost of the ethanol, raises octane and best part- under 4$ a gallon mixed. We won the last race of the season with this mix.