The real question is do you NEED more octane? If your motr doesn't require more octane then the base fuel your buying then the booster does absolutely NOTHING for you but cost you money. My own boat has a procharged 540 in it, I run around 12 psi of boost on 93 octane making 1050 hp with that pulley. If I am worried about my octane being questionable on my boat or I want to run my 14 psi pulley I throw in 15 or 20 gallons of race gas to boost the ocatane, for the most part I don't buy octane booster for my boat as it will help as a last resort but I never have to buy gas on the water, Smitty

How about buying 90-91 mid grade at the marina (usually ethanol free) then adding to bring octane up?

When you refer to 100:1 does that mean 1 bottle of boost per 100 gallons? If you could explain that part i would appreciate it. I am lost on the ratio parts. Also by 3.5 points you are referring to actual increase in the number in octane,not points correct? Nos has a boost out that claims 60 points and 6 numbers in octane. Can that be true? Or is lucas the leading competitor in the market. I got big cubic inches at 10:1 compression. Not really a high compression motor, just want some safety zone there when i lean on the sticks. With the deteriorating quality of pump gas i would like to be safe by having some more octane then just relying on a stations pump gas.

when the 110 octane I was buying for a few years went from $2.92 a gallon to over $6 per gallon in one week I started doing some research on having race fuel made and marketed. Most of the cheeper brand race fuels are 87 or lower octane offroad fuel with toluene and a little hydraulic oil mixed together. The toluene evaporating is why they loose octane over time so fast.

Turbo blue 110 octane is 51.7 gallons of 87 octane and 2 gallons of toulene and .3 gallons of hydraulic oil.

Sunoco high end fuel is the only race fuel that is not made from low octane pump fuel as a base

hmmmmm so a 55 gallon drum with 93 would be even higher? thats good info.

all so try xylene does the same thing

Did you open the link and read the testing I posted? Did you open the Lucas link and also read the calculations I posted???? When I say 100-1 its like mixing 2 stroke oil, at 1 oz to 100 oz would be called 100-1 which would raise your octane 3 NUMBERS or WHOLE points as I mentioned IE 93 to 96 octane, not these points that are 1/10 of 1 real point or number that these plastic bottle of cheap octane booster claim. Toraise your octane 3 or 4 points with the lucas and you had 100 gallons of fuel in your boat you would dump in 10 cans or 65$ worth of lucas at 6.50 a can, this would make your 93 octane 96 or so. To do this with the NOS stuff which if you opened nand read the link you would see it would cost 5 timesthat at 15$ a can and a 50-1 mix ratio-100 gallons gas x 128=12800 OZ/50= 256 oz of NOS crap. At 15$ a 12OZ can it would cost you over 300$ to raise your octane 4 points with NOS, waaay too exspensive (22 cans at 15$ a can), open the links I pasted several times, it shows the octane testing, Smitty

I have seen the same thing, Xylene raises the octane even higher than tolulene and is a little cheaper but I have still never found either for even close to price of just buying 112 octane race gas, Smitty

We spent a lot of years researching and messing with the stuff trying to make HP in very small engines. (Getting it past tech/fuel tests is a challenge.) It is very dangerous for a number of reasons as stated, and in the volume you guys are discussing, my advice is to buy race gas and beer and be healthy and happy.

Give Torco a try. I heard this is the best product for increasing octane. It's a fuel concentrate, not an octane booster.

http://torcoracefuel.net/pro-accelerator.html