I started this thread over on m.net about a home brew octane booster using Toluene - and some one of the ideas reallt caught my attention:

"It sounds like the idea for the forced induction / nitrous crowd would be to get a separate set of nozzles feeding pure toluene when the boost comes on. Since most driving is done at low throttle openings with octane requirements that can be handled by xx-octane pump gasoline , you would have the best of all worlds - cheap cruising with power available when needed."

Anyone tried something like this?

 

Yeah, it's called meth injection. Been done for years.

 

Anyone know anything about propane injection? I started to do some research on it years ago but stopped for another project. Other than the "oh ****, I blew my car up" thing, it seems like a good thing to do.

 

My F350 powerstroke has propane and nitrous injection. It has a Bully dog module controlling them both, advertising says its good for another 100hp and a billion foot pounds of torque. Its easy to refill and fun to play with.

 

That is the thing though, I have only seen it used on diesels. Never seen it on a gas engine.

 

OK, stupid question of the day:

I had an occasion to think there was a vacuum leak on a friend's car and tried propane to find it. Used a hose and regulator to mist propane around the engine and nothing happened. Decided to open one of the vacuum lines just a little to find out how much the RPM's would increase if it had found a vac leak and all the propane did was decrease RPM's.

WTF??

 

I never have been able to get the propane leak test to work for me. Some people swear by it but it just won't work for me.

Anyway, I want to use the propane more for cooling than extra fuel. As I said, I haven't really did much research on it.