Liquid Octane boost suggestions!

[fastd]

suggestion: find 110 octane gas somewhere near or order online. best bang for the buck

[Tommy]

I don't think any of the small cans of octane booster you can buy at the auto parts store increase octane by more than about one tenth of a point (i.e., from 93 octane to 93.1 octane) when added to 15-20 gallons of gas. To see any measurable or noticeable change in octane, I purchased an additive that was sold in a roughly ten gallon container and delivered by freight. As best I recall, mixing it with 93 octane in a 9:1 (gas:additive) ratio increased the octane about seven or eight points to 100 octane. ... It's been a few years so I won't argue if someone comes forth with more accurate information.

PS: I think it was something like this: Hitrate

[STL Mark]

I actually dyno tested one of the popular products. I added the proper amount to a full tank of 93 octane - and lost 30 RWHP. I don't know if anything was "cleaner" - but I won't be adding anything to the tank ever again.

[Jaydee]

How about plain water. Years ago I installed water injection. I could advance the timing 5deg without pre-ign.
JD

[jwoodard]

Try Klotz Octane boost. Three ounces/gallon will raise the octane about 10 points.

[Tommy]

Originally Posted by STL Mark

I actually dyno tested one of the popular products. I added the proper amount to a full tank of 93 octane - and lost 30 RWHP. I don't know if anything was "cleaner" - but I won't be adding anything to the tank ever again.

I can't tell from your post if you really boosted your octane or just added some of the usual over-the-counter stuff. In any case, boosting octane alone does not result in an increase in engine torque or power. What it does is allow you to tune the engine more aggressively (e.g., more timing advance) without suffering detonation. So, if you don't retune the engine after you raise the octane, you won't feel much difference. .. Unless you have a computer controlled fuel injection that automatically senses and adjusts for the fuel.