Source for switched power ..., for fuel pump (carbs) Options

[Eddie914]

The fuel pump (early 911 Hardi internally regulated) on my '71 3.2 conversion with 40mm webers is in the front trunk with wiring running off the original wiring in the engine compartment. After having fuel pump problems at the track last weekend, I would like to simplify the wiring for the fuel pump and just run power from the fuse panel to the pump.

What would be a good source for switched power?

Is a relay needed for the fuel pump on a carbed engine?

Thanks

Eddie

[GeorgeRud]

It is always a good idea to run a relay to the pump. Since it doesn't draw that much amperage, you should be able to tap off of any switched fuse to run the relay, powering the pump directly from the battery.

I would also heighly recommend putting in a switch on the dash (ie another foglight switch) so you can turn the relay on and off as needed. It's always a good idea to turn the fuel pump off a couple of blocks away from your destination to let the fuel levels drop in the floatbowls to minimize fuel perculation after the engine is dhut off. The new fuels have a higher Reid Vapor Pressure, and really like to perculate!