Any Sucessful/Proven Octane Boosters?

[Rustytinhorn]

Has anyone ever used an octane booster that performed like they claim it should? Anyone ever notice that one brand works better than another?

[tecat-z]

Just buy quality race fuel and be done. That way you know. Preferably leaded.

[Yamada]

:twisted:
you just gave me an idea...
I have a old leaf blower ( 2 strokes) laying around. :D
I think I'm gonna do a couple of experimentation on it. octane booster, Av gas, ether or whatever can fill the gas tank.

[storm_impulse]

:twisted:
you just gave me an idea...
I have a old leaf blower ( 2 strokes) laying around. :D
I think I'm gonna do a couple of experimentation on it. octane booster, Av gas, ether or whatever can fill the gas tank.

rubbing alcohol? moonshine? hell make a nitrous port on the intake:)

[GPracer2500]

The vast majority of octane boosting products aren't worth much of anything. I believe most use MMT as the active boosting ingredient. MMT sort of works, but you've got to add lots and lots of it to raise the rating by an appreciable amount. Beware that when most autoparts store octane boosting products say "raises up to 10 points", the "points" they are talking about are not octane rating points. Their "points" are actually 0.1 octane points. It's very misleading.

Tetra-ethyl lead is really the most effective octane boosting additive known. The majority of racing fuels utilize it. Unleaded racing fuels generally must sacrifice other properties of the fuel to achieve high ratings--and even then only a few will get over 100 MON (MON: not to me confused with RON or the R+M/2 displayed on our gas pumps). Unfortunately, the EPA (along with O2 sensors and cat converters) don't like TEL.

The only TEL additive I'm aware of that's still available is Kemco's Octane Supreme 130 (http://www.kemcooil.com/product_info.php?pId=61). It used to be called Lead Supreme 130 but they changed the name--I assume for image reasons. If an octane rating higher than pump gas can offer is needed and race gas is impractical or impossible to obtain, I'd suggest Kemco's product.

The only other octane boosting strategy I might consider is using an aromatic hydrocabon with a high blending octane such as toluene.

[pickleweasel_00]

I read somewhere that octane boosters usually only make any difference on the lower octanes like 87 and 89, pretty much making them equal to 91 or 93. On the higher ones like 91 and 93 they made very little difference. SO yeah, if you want a higher octane, buy the high octane fuel :)

[rally4x4racer]

I have emptied a can of starting fluid in the fuel tank before. This reduces the octance content because it is mostly heptane which explodes under pressure.

[Mosh]

I heard octane boosters and some av fuels,will kill your reeds and crank seals in a 2 stroke.I just run Sunoco 104 leaded race fuel for drag cars.By time you buy 5 gallons of 93 octane and a bottle of booster,It is the same cost as 5 gallons of 110 octane at $4.80 a gallon.

[Trouble]

4.80 a gallon for race fuel? wow, it costs me $10,50 a gallon.

[Rustytinhorn]

Race fuel here costs $6 per gallon. Our gas pumps only go up to 91 octane. I've only ever seen the 93 octane once or twice. I think I will start trying the 100LL fuel from the airport again. I bought a couple gallons once and ran it and I didn't notice any difference. However, that was before I upped my compresssion,:naughty: so it might help slove my knocking problem. Last time I bought 100LL was back in Feb of this year, and if I remember correctly I only paid 3.50-3.75 a gallon.
Thanks for the replies.