Hallett june 20-21 anyone?

[goofygrin]

Just an idea... go to Sherwin Williams and buy a 5gal can of toluene for $35 and take with you and a small 1 gal gas can and funnel. add 2 gal to 11 gal of 93 or 91 octane at the pump and resultant will be 96 to 98 octane.
I tried this a month ago. I put 2 gal of toluene in my tank before a full fill up of 10.5 gals. The car purred like a kitten.

yaaaaaaaaaaa I don't think I'm going to run 27psi into my motor with toulene.

[CarCar]

A very interesting read. It is very well footnoted with petro studies. Seems the more boost you are using the better the benefit you receive from toluene. The F1 guys later had to delute toluene with a 0 octane filler to fall under rules."toluene was used extensively in the turbo era in the1980s by all the Formula 1 teams. The 1.5 liter turbocharged engines ran as much as 5bars of boost (73 psi) in qualifying and 4 bars (59 psi) in the actual race. Power outputexceeded 1500bhp, which translates into 1000bhp/liter, an astronomical figure."http://www.elektro.com/~audi/audi/toluene.html

[goofygrin]

I'd rather go with the more common methanol injection method if I was going with a chemical additive. Of course, that's not legal for BSP, so I won't be doing that... E85 would be better bang for the buck, but I certainly am not finding E85 in Oklahoma.

[jeff_man]

I'd rather go with the more common methanol injection method if I was going with a chemical additive. Of course, that's not legal for BSP, so I won't be doing that... E85 would be better bang for the buck, but I certainly am not finding E85 in Oklahoma.

buy a 6-12 gal fuel tank, insert e85, buy a hand pump and take it with you.

[goofygrin]

To run E85, I have to swap injectors, fuel pump and retune.

And 6 gallons nets me ~20 minutes on the track.

The evo is a thirsty beast when being flogged.

[jeff_man]

To run E85, I have to swap injectors, fuel pump and retune.

And 6 gallons nets me ~20 minutes on the track.

The evo is a thirsty beast when being flogged.

no you take the extra tank and add the e85 to the 91 you buy in oklahoma. like 2gal per 10 or something like that.

[SirHustlerEsq]

no you take the extra tank and add the e85 to the 91 you buy in oklahoma. like 2gal per 10 or something like that.

you still have to re-tune, and then you never know the right target AFR.

OK sucks btw, but you can get 103octane at a couple shell stations in Nichols Hills.

91 at Hallett isn't too expensive, and Mike told me they make no profit on it. I plan on running OK 91 and just spraying 3gph of water.

[miataspeedracer]

I usually take a couple of gallons of toluene with me when I go to Hallett. If you are counting on purchasing race gas at the track, be sure to call ahead and make sure the tank ain't dry!

[SirHustlerEsq]

why don't you guys just tune for 91-octane? That way you don't have to worry about bad-fuel either. You should always have a few degrees of spark angle forgone for safety.

[johnwag]

why don't you guys just tune for 91-octane? That way you don't have to worry about bad-fuel either. You should always have a few degrees of spark angle forgone for safety.

P-P-P-Powercard.

[goofygrin]

91 is for sissies

[goofygrin]

OK Weekend's done, but I'm not back (staying a couple days so the wife can visit with her family).

91 = $4.50/gal
104 = $7.70/gal

Mixing to make 94 = $5.50 a gal.

Getting 5.5 mpg on Saturday and 5.0 mpg on Sunday = a damned expensive weekend on fuel costs alone.

No knock or other engine issues. Lots of brake fluid boiling though!

[CosmosMpower]

Does 91 dilute the octane rating of the 104? Shouldn't 91 and 104 mixed at a 1:1 ratio make 97.5 octane?

[goofygrin]

I mixed it 7:3 to get 94.