The NOS "Racing Formula" is the one I have been using.

The Idaho Corvette Page interviewed Jim Bell, who runs Kenne-Bell Performance Products, a manufacturer of aftermarket supercharger kits. In developing blower kits and supporting the customers who buy them, Kenne-Bell has tested many octane boosters. â�?��?Donâ�?��?�t waste your time with boosters that use alcohol because they donâ�?��?�t do anything,â�?� Bell told us. â�?��?The ones that say they have lead in them, donâ�?��?�t work, either, because the amount of lead is so small. The only boosters weâ�?��?�ve found to be worthwhile are those that use MMT and one we recommend is the NOS brand.â�?�


MMT stands for���??try this tongue twister: methylcyclopentadienyl manganese tricarbonyl. Once viewed as a possible replacement for TEL, while not as potent, it still increases octane and, in large quantities, can eliminate valve seat recession. While it���?�s used in Canada, MMT is ignored by refiners in the U.S. in favor of other antidetonants, mainly because it���?�s illegal in areas where RFG is required and a few refiners feel its long-term use might compromise engine life. MMT is shunned by car companies due to durability concerns about components in on-board diagnostic and emissions control systems and questioned by the EPA as a possible health hazard. Nevertheless, in 1995, MMT was allowed on the U.S. market with some restrictions after its manufacturer won a Federal court case against the EPA. At this writing almost no U.S. refiners add MMT to gasoline, but it is the key ingredient in a few canned octane boosters.

The Idaho Corvette Page acquired octane booster test data from an independent research laboratory. The first test was straight 92-octane unleaded gas from a Chevron station in southern California. It tested at 96.3 RON and 88.3 MON for an R+M/2 rating of 92.3, 0.3-oct. higher than the rating on the pump. To a second sample of Chevron 92 from the same station, the lab added â�?��?104 Octane Boostâ�?�. The octane of the gasoline modified with this booster was unchanged. The lab tested a third sample of Chevron 92 and NOS brand â�?��?Street Formulaâ�?�, a MMT octane booster, mixed 1:170 (12-oz. bottle in 16 gal. of gas). The results were: 96.8 RON, 88.4 MON and 92.6 R+M/2, a measurable change but, clearly, as the MON went up only 0.1-oct, not a practical improvement. NOSâ�?��?� most potent booster, â�?��?Racing Formulaâ�?�, another MMT-based product, in Chevron 92, tested at 98.5 RON, 90.4 MON and 94.5 R+M/2, a credible but modest improvement.

good info to have. anything lead based is bad for 02 sensors if you dont know that (common knowledge)

also... so u guys know. higher octane doesnt necessarily mean more HP. if you have inadequete compression or timing, the more octane will actually make the car slower (produce less power, anyways) higher octane fuel is harder to burn. it's a "slower" burning fuel and most people think that makes it "better". not necessarily. if you advance a timing curve, or raise compression, or lean a car out, you will need better gas. SVT contours require premium fuel only, although you may see better times at the track when running 87 octane, but beware! it will make your car run lean or possibly detonate! i would say that a stock contour SVT could run 87 octane quite easily, until you start messing with fuel and ignition curves.

Originally posted by allstyle12:

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Originally posted by Tourige:

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Originally posted by allstyle12:

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Remember to get some type of octane booster. I have used Lucas and NOS. I have heard Torco also works well, but have yet to try it.

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You shouldent need octane booster unless your tuner is an idiot.

and Torco is the only octane booster that actually works.

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Correct, you don't NEED octane booster. I just like to play is safe when it comes to any type of forced induction as should everyone who does not want a blown engine. Especially when the weather is hot.
Suit yourself, but I would rather be fast and reliable at the same time without having to worry about detination. I have yet to "Tune" my car, but I am only running a 75 shot so I don't really NEED to "Tune" it yet. Tunning will come if I decide to go bigger than 75. You indicate "Torco is the only octane booster that actually works". It will be helpful to us all if you have tests that "actually" proves it is the "only" one that works.

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your right.. dont tune a car with nitrous... Talk to me when you blow your engine.. idiot.

Explain to me how adding octane booster even comes close to the quality of a good tune? Dosent..

And yes, Torco is the only octane booster that works, unless you want .02 of an octane for each bottle you add.