Home made E-Fuel Pump Speed Controller?

[MrSkull]

Hello
Wasn't sure where to put this post, but figured this is the best place.

Ok time for all you Electro-Wizards to show up!

I am running an Aeromotive Electric (SS) Fuel Pump, P/N 11203.

I would like to be able to run it at slower speeds at low RPM, and go into full power mode at ~3000 RPM or another set point. Aeromotive makes a Billet module that does just this but at more than 250$ I thought I would research a DIY path to see if its possible to make it for less $$$.

I am guessing I would need some sort of voltage regulator, and a switch that senses RPM. Even a two stage system would work IMO. For example if I could run the pump at 1/2 voltage below 3000 RPM and full voltage at 3000 +.

My reason for wanting this would be to run the pump slower and cooler while cruising, saving wear and tear on the pump.

Any ideas? Thanks for anything you come up with.

I am running a Demon carb, and a Aeromotive Bypass regulator P/N 13301

Thanks,

MrSkull

[john_d.]

My stock in-tank pump was seeing about 11.5 volts even with the engine running. I'd be afraid of overheating it, if running even less voltage.

I run a kenne-bell boost-a-pump, and can bring the voltage up to around 18 volts with it. It has an adjustable dial to mount under the dash, and is switched.

The switch can be anything: a pressure switch (for boost), an rpm switch, a wot switch, or a manual switch.