There are many mis-statements and half truths in the thread.
First, methanol is alcohol. There are two types of alcohol that you can burn in a motor. 1 is methanol. 2 is ethanol. The first is a by-product of petroleum. The second is the main product of moon shiners.
The first is poison if you drink it, the second will give you a hang-over and is pretty good stuff with orange juice. Methonol is cheap and is used by racers the world over. Ethanol is expensive and is usually used in the gasoline industry for cutting fuel. It is also drank by millions of people.
You can only mix so much alcohol with gasoline. In hot temp you can go up to about 20%. In cold temps you can only go about 10% before you get into trouble. If you break these rules you will be in big trouble.
Also the octane of alcohol is a lot more than gasoline. That is why you want the increase in compression with alcohol.
Let me finish by saying there are good points and bad points with messing around with alcohol. Only you can deside if it is worth the trouble.

 

Hey doctorturbo,you've got some great photos.I really like the pictures of the drag car.Cool!

 

Thanks RDZ350. Just to be clear, it's not my car, I just drive and tune it.
And for some reason I have be doing a **** poor job at both of those. [img]i/expressions/face-icon-small-disgusted.gif[/img] Nothing but problems with tunning the new motor. Very frustrating problem.

 

Doc is right, and methanol has a lot of octane, which is the reason you can run higher compression. It'll also cool your motor significantly as well.

 

lets say for example that i run a 190 main at sea level at about 70-80 degrees,a 50 pilot and 2.5 turns out on the mixture screw. running c12 with a 10% mix, what sort of jetting changes should i make? i also have a rev box that i usually only run at sea level. will the box more than likely be enough advance ?

 

This mix is only going to make you a hair lean. 10% isn't much of a change. If your right on the money now I might go with a 195 or so main change. Your going to be very close right now though. No matter what, with a 13.5 to 1 motor keep a sharp eye on the plug.
All in all, if it runs good right now it will run good after the 10% bump.

 

has anyone dynoed to see the gains? how many ponies will 450r see?

 

i have dynoed before at sand mountain at 45 hp before the piston. i would guess that the piston and fuel changes have given me closer to 48 hp. i would not expect more than a horse or two with the mix, but a horse or two on top of a horse or two starts to add up.[img]i/expressions/face-icon-small-smile.gif[/img]