Mix your own race gas... in the hard ware store

[9D9 MITSU RS]

Originally Posted by Damn 2nd Gear

i didnt say i gained hp. the car just pulled better than before, alot smoother. its almost the same effect as how much better a car drives after a tuneup. and from 4500-7000rpm the car pulled better than before. off of it the car seems not to rev as easy. its not giving hp, but it seems to free some up.

It burns cleaner. I can see that helping. Possibly. I wasn't trying to post in a way to prove you wrong or anything, just to be informative. :thumb: Hell, I've used some octane booster before. I think it's a good idea to run that or fuel system cleaner around every oil change. :thumb:

[Damn 2nd Gear]

no offense taken. but on a side note i knotice that if i put REALLY cheap gas like ARCO in my car the 87 junk the car is a dog. but cheveron is sooo smoooth in her.

[GSXpower]

Hey guys I was just expermenting with this homemade race gas idea and I was wondering where you can buy pure toluene from so I can mix up a batch and give it a whirl. Thanks for any help.

[GSGoinFast]

Originally Posted by 9D9 MITSU RS

Running higher octane only burns cleaner and faster for us. As said above, the only way to see gains with higher octane is with forced induction or high compression. The only gains are in your mind b/c you want them to be there. You MIGHT get like 1-2 HP if you went high enough with it. :thumbdown

i think thats what a lot of "gains" are... in your head ### you want it to be faster. just like when people say "it pulls harder with the new spark plugs" :rolleyes:

[x camaro owner]

ya and i buy this stuff from summit and pour it in my gas and it makes the exhaust smell like fruit. no joke they really do have it

[gofaster87]

Originally Posted by GSXpower

Hey guys I was just expermenting with this homemade race gas idea and I was wondering where you can buy pure toluene from so I can mix up a batch and give it a whirl. Thanks for any help.

Sherman Williams sells it by the gallon or 5 gallon can. Cheapest place Ive found so far when I was using it.

[IntactTSI]

It was my understanding that using increased octane fuel can will in most cases in a forced induction/ nitrous application increase performance, but the power is not from the fuel or the octane rating. In DSM's, if any knock or excessive knock is detected, the ECU will pull timing until the knock is either gone, or acceptable. So increasing the octane rating of fuel reduces the knock under load and at high RPM, allowing the ECU to keep more aggressive timing equalling more power.

I could be wrong, but that's how I understood it

Intact :talon:

[GSGoinFast]

Originally Posted by IntactTSI

It was my understanding that using increased octane fuel can will in most cases in a forced induction/ nitrous application increase performance, but the power is not from the fuel or the octane rating. In DSM's, if any knock or excessive knock is detected, the ECU will pull timing until the knock is either gone, or acceptable. So increasing the octane rating of fuel reduces the knock under load and at high RPM, allowing the ECU to keep more aggressive timing equalling more power.

I could be wrong, but that's how I understood it

Intact :talon:

yes that is right

[TKI]

How much of a percentage do you mix the xylene with gas? :dsm:

[pinknuggit]

Originally Posted by Mike1992

So i guess I need to stop buying 91 and use 87?

yup, try putting 85 octane in if you can. If it pings, stick with 87.

[GSGoinFast]

Originally Posted by pinknuggit

yup, try putting 85 octane in if you can. If it pings, stick with 87.

where the hell do you get 85 octane gas??? the lowest i ever saw was 87. just get 87, its what the service manual recomends.

[pinknuggit]

there is one gas station back home that sells 85 octane. :shhh:
I always run 85 in my truck when I can. it runs a whole lot stronger.

[ricky750]

don't forget, a lot of companies add xtra proprietary blends 4deposit contlroto their 'premium' gasolines (techron, etc...). So if you N/Ters like the 91 octane more, it's not the higher octane of the fuel that's benefitting you, but the fuel system additives that the companies put in with it...

-rick

[interceptor]

http://www.vtr.org/maintain/gasoline-octane.html

[interceptor]

http://www.vtr.org/maintain/gasoline-octane.html

[interceptor]

sorry for the double post .pc acting up

[boostcreep]

Just to recap.... If i run Ultra 94 with the 10% by volume calculation with a 1/4 tank (that should be slightly over 3 gallons). I will yield a octane gain of just over 120 octane! I'd be alittle scared of that.

[TurboXtalon]

So im siting in chemistry a while back and my chem teacher was talking about gas prices and how insane they are ect ect. Well out of the blue he was talking about his dads old muscle cars or something but he use to but aviation fuel in the bastard when he figured out, he can mix 87oct with Toulene (100%paint thinner!) and dump auto transmision fluid in it for a bit of lubrication. I was calling bullshit the whole time, I didnt belive it but he happend to have a can of genric octane boost, guess what the main "ingreedent" was. yeah Toulene. But in the more expensive octane boosts the main ingreedent was xylene. Xylene is di-methyl benzene when toulene is methl benzene, the methyl the alchohol is whats burning, so your geting about twice the go juice. Well a standard can of paint thinner with mineral sprits (a cleaing agent...) contains a mix of toulene and xylene. Well here is the magical solution.

Has anyone ever tried this? I found it in the tech stuff and just wondering if anyone had ever tried it and if it workedor not?

[MrBoxx]

Toluene (correct spelling) has a RON octane rating of 121 and a MON rating of 107, leading to a (R+M)/2 rating of 114. Toluene is denser than ordinary gasoline (0.87 g/mL vs. 0.72-0.74) and contains more energy per unit volume. The higher heating value of toluene also means that the exhaust gases contain more kinetic energy, which in turn means that there is more energy to drive turbocharger vanes. In practical terms this is experienced as a faster onset of turbo boost. Because toluene is such an effective anti knock fuel it also means that it is more difficult to ignite at low temperatures. The Formula 1 cars that ran on 84% toluene needed to have hot radiator air diverted to heat its fuel tank to 70C to assist its vaporization. Thus too strong a concentration of toluene will lead to poor cold start and running characteristics.

Got all this info from:
http://www.elektro.com/~audi/audi/toluene.html

[Cheks_Talon_TSi]

Originally Posted by TurboXtalon

Has anyone ever tried this? I found it in the tech stuff and just wondering if anyone had ever tried it and if it workedor not?

Everytime i go to the 1/4mi tracks here in Monterrey Mexico, I use toluene. We use to mix our PEMEX PREMIUM 92 Octane fuel with a max of 20% of toluene. Believe me that this mixture have help me to improve my 1/4mi tracks a lot. I also have tested with OCTANE BOOSTERS of several brands (Such as the ones Pep boys sale), and those boosters doesn't have anything to do with the toluene.

We also have made owr "MAgical Mixture" of octane booster. This is how to do it (I take it from http://www.geocities.com/runyardj/Oc...sters-Info.htm):

"Making your own
How to make your own octane booster (this is the basic formula of one of the popular octane booster products). To make eight 16 ounce bottles (128 oz = 1 gal):
100 oz of toluene for octane boost
25 oz of mineral spirits (cleaning agent)
3 oz of transmission fluid (lubricating agent)

This product is advertised as "octane booster with cleaning agent *and* lubricating agent!". Diesel fuel or kerosene can be substituted for mineral spirits and light turbine oil can be substituted for transmission fluid. Color can be added with petroleum dyes.

Or skip the cleaning agent & the lubricating agent altogether. Most high dollar gasoline comes
with cleaning agents already, and does any brand of gasoline come with a lubricating agent? No.
It's not needed."

Also, you will find more important info of toluene on this site: http://www.elektro.com/~audi/audi/toluene.html

Here in mexico we buy 19Lts of toluene in some paint shops for about $35.00US Dlls. But believe me it will help you a lot on the tracks. I never use it for the daily use, I really don't know what can happen if you use it a lot, so be careful!

Good luck

Sergio G.

[TurboXtalon]

Cool, so if i would add one 16oz container of this mix, i'd be looking at a octain level of 9?.? whn used with 92 oct pump gas.

[Cheks_Talon_TSi]

Originally Posted by TurboXtalon

Cool, so if i would add one 16oz container of this mix, i'd be looking at a octain level of 9?.? whn used with 92 oct pump gas.

that's cool guy!! go for it!!

good luck!