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Author Topic:   fuel additives
posted August 03, 2003 09:05 AM
i think it's called nitro propenol. jetting will need to be richer for the "cooked" fuel.....

posted August 04, 2003 11:03 PM
I can save you some time and tell you right now that the propelyne oxide doesn't work. We tried it on the dyno and got nothing, we run a 9:1 hobby class. octane booster doesn't help you dont run enough compression. octane needs a higher flash point to run and on 9:1 you wont get it. find the right cam and work on the chassis. You'll be surprised what you can find. lighten up your roatating and gain some there.

posted August 05, 2003 01:46 AM
But always run racing fuel if you can afford it!

posted August 05, 2003 08:47 PM
well I am in a simular position went and ran another track and I am running 50% pump amd 50% mark 2 it is 112 oct.. and well thatd is cause I got 10.8/1 comp.... and need it to keep the motor from detonating and well the track tech didn;t like the smell of my fuel... so I need to find a new way of gettin my octain..

posted August 10, 2003 10:17 AM
A 10% mixture of toluene with raise the octane up to racing gas levels. Toluene and benzene are some of the ingredients in racing fuel. Benzene is a small part. You can get toluene at any paint store.

posted August 12, 2003 10:32 PM
25 gal premium, 25 gal av gas, 5 gal tolulene...

posted August 18, 2003 09:30 PM
Originally posted by racer 4:
there is this guy at our track puts something in his alcohol calls it vitamin c and it belches pretty orange fire out the exhaust all the time funny though he wont tell me what it really is i guess ill ask him at the next pit meeting. haha

it's called MTBE [methyl tertiary butyl ether] a real kick in the pants....but a REAL carcinagen!!! BE CAREFUL!!! 10-11% by volume.extra doesn't help

posted August 18, 2003 09:34 PM
also...prop oxide DOES help when mixedv properly and jetted right. it creates excess oxygen when burned so go 2-4 steps up in jet to start

posted August 18, 2003 09:44 PM
added octane slows down how fast the fuel will burn.

this is needed in high comp. motors to avoid it burning too fast and detonating and burning holes in pistons.

you will make more power with the least amount of octane you can run. it will burn faster, hotter etc.

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