Octane Boost Anyone????

[defiant1]

Anyone here tried Toulene or C-16? I stumbled accross this thread and figured I'd put it up. Sounds like a pretty good solution for upping the octane, especially when you start to up the boost. Unfortunately the highest octane where I live is 91. I figure it may come in handy. Very long, but very informative. I will go back and research more on this, maybe try it one day.

http://www.srtforums.com/forums/show...hlight=toulene

[defiant1]

Okay some more information on toulene, etc. Sounds like it could be good, or bad depending on opinion. Any fuel experts want to chime in here?

Here is what I have come up with. Toulene can be found at most paint shops and general rule use 1 gal toulene w/ 20 gal of 91+ octane. Don't forget to add something to lubricate or it will destroy your hoses (1 cap of marvelous mystery oil or 1 cap of tranny fluid). This seems to be the norm for SRTforums and DSMtalk.

OTHER INFO:
http://www.dsmtalk.com/forums/showth...hlight=toulene

http://www.dsmtalk.com/forums/showth...hlight=toulene

PROS AND CONS:
http://www.srtforums.com/forums/show...hlight=toulene


Other Options:
http://www.need4speedpower.com/torco.html

[Dave]

I would recomend trying the torco. I have used it in my car with pretty good results. We went pretty crazy with timing with no knock, and its cheap too.

[Sp00ner]

I dunno... why not just run 100+ octane at the tracks?

[Kevinedwards05]

I ran some, but really couldn't tell much of a difference. After that, I just ran 100 octane fuel. By the time I paid for the octane boost and a tank of gas, I spent almost as much as I would have the 100 octane fuel.

[defiant1]

The octane boosters that you can purchase from the store are extremely expensive, and seem to do little in the way of booting octane. Keep in mind that 1 octane point is really only a .10 increase in actual octane. So purchasing a bottle of octane booster that will give you a 5 octane point increase for $6 is alot more than buying a gallon of toulene for $6 and getting jumping up 20-30 octane points.

The info below was taken from this link: http://www.srtforums.com/forums/show...hlight=toulene

"Q: Why not simply use racing gasoline or aviation fuel?

A1: Most types of aviation fuel have very high lead content, which would rule out cars equipped with catalytic converters. Most piston engined aircraft burn leaded fuel. Also aviation fuel has a very different hydrocarbon mix to optimize volatility properties at high altitude.

A2: Racing gasoline could be a much more convenient way to run high octane fuel compared to having to constantly mix in toluene with each fill up. There are, however a few caveats:


You don't know for sure if you are really getting what is being advertised. You should find out if the fuel inspectors verify the actual octane of the racing gasoline in addition to ordinary gasoline. If you paid $3/gallon and only got 94 or 95 octane instead of 100 octane you may conclude erroneously that your car does not benefit from octane boosting.

You don't know what octane boosters are used in the racing gasoline. The worst case scenario is buying leaded racing gasoline without knowing it. Unleaded racing gasoline may still contain damaging octane boosters like MMT or methanol. A very high alcohol content will lead to fuel line erosion, accelerated fuel pump wear, very poor fuel economy and possibly lower performance, as alcohols have a less impressive MON rating than aromatics.

It takes smaller quantities of toluene to achieve the same octane boost compared to 100 octane racing gas. I have not seen unleaded racing gas for sale that exceeds the octane rating of toluene.

Since toluene is not officially sold as a fuel, gas taxes do not apply. Also racing gasoline tend to have higher markups being of interest to the performance minded enthusiast and thus is very likely to be more expensive to buy and use long term than toluene, which is typically used in more mundane applications like paint thinner."
I'm not an expert on fuel, but I saw this and figured it may be useful for those who want an octane boost, but would rather make sure they know exactly what they are getting.

[nka]

Originally Posted by Dave

I would recomend trying the torco. I have used it in my car with pretty good results. We went pretty crazy with timing with no knock, and its cheap too.

We have done some test with Dyno and track racing test for the Torco... it's not that good

It's feel good (engine rev smooth and all) but the oil doesn't seem to be as good as Motul or something!

[defiant1]

Originally Posted by nka

We have done some test with Dyno and track racing test for the Torco... it's not that good

It's feel good (engine rev smooth and all) but the oil doesn't seem to be as good as Motul or something!

How about there race fuel concentrate? They advertise that their unleaded concentrate mixed with 93 octane will make up to 104 octane. I didn't really believe it, but the dyno sheets show pretty good gains. Of course who knows if they did anything else in between the runs.

WRX Dyno: http://www.need4speedpower.com/appie...allery/album04

Integra Type R: http://www.need4speedpower.com/appie...tegra_TypeR_12

[Dave]

Thats funny, need4speed is somewhat local to me and that dyno is same one I dyno my car on. I am not sure how much it actually happened, but through tuning and with the additive in I gain almost 20 hp and about 17 tq going crazy with timing and no knock, maybe I should have tried 93 octane and see if it knocked.

[defiant1]

Originally Posted by Dave

Thats funny, need4speed is somewhat local to me and that dyno is same one I dyno my car on. I am not sure how much it actually happened, but through tuning and with the additive in I gain almost 20 hp and about 17 tq going crazy with timing and no knock, maybe I should have tried 93 octane and see if it knocked.

Was this on a RL?