looking to build my own water-methanol injection controller for my car. At 7lbs of boost I want to mist the mixture all the way up to full spray at 22lbs boost. my pump is 12 volts and up to 15 amps at full power. I found out how to do a scaling input to a scaling output. i don't know what arduino board to use. i assume i need to have a variable motor controller or an H bridge of somesort. Any suggestions? i also want the system active only when the outside temperature is 80°F or above. Need an ouput for a LED or display to show me how active the system is pumping.
