I know the e-01 can use an external signal, like 12volt, to change the boost setting, what other units can do this. Here my plan. have the boost controler setup so that low boost is 11psi (wg pressure) and high boost is 25psi or what ever the meth kit is tuned for. Then use the external signal for the boost controler to read the power from the low fluid level sensor on the meth tank. This way if the meth runs low the boost is automaticly set to the lower setting. I did this useing an E-01 on my silvia tied to the wideband. AF's go to lean and the boost drops to very low. Worked great, I just dont what to shell out the 500bones for another e-01. thanks guys

the switch on the alky is very teetery however. Meaning that when it gets low it doesen't just click over, it will turn on and off with the alky moving around in the tank. I would see this to be extrememly hard on the engine being in a pull and having the boost switching back and forth.

Yeah thats true...