If you get your car tuned with AI, lets say alcohol. Does that mean i always have to run that mix.

My car will be a street car, but will do a few drag events. So once i decide on what AI to get, does that mean i'll have to buy alcohol to run my car?

 

From the advice that I've gathered, I'm not going to tune my car to RELY on aux. injection. I WILL run it, (water/methanol) but I've read that it's best when it's used only as an additional safeguard. When you tune to rely on it, any fuel delivery or ignition problems could possibly destroy the engine. That and you could forget to fill up your AI tank (even if you have a level sensor-if it's mounted in the bottom of the tank it's too late by the time it sets off its warning light) and grenade your pride and joy. I'm not going to chance tuning to rely on it (my boost psi will be low enough anyway), but I'd like to have it for a bit more peace of mind...