Best Fuel Pump Advice for Newb...

UPDATE!

Everything was good to go, no leaks. I had my son bump the starter several times, to turn the engine over and even during the 2 or 3 revolution bumps, I could tell the new pump was pushing more fuel into the filter. It's good to have a clear filter.

It filled the filter pretty good, so I went ahead and cranked it and drove it to the fuel station and filled it up. I checked the mpg after filling it up. Previously, I drove it to the track, ran it down the track 5 times and drove it home. 15.7 mpg. Not great. Not horrible. The best I've seen with it.

Anywho, after filling it yesterday, I did some 10+ second pulls. All the way to the 90 mph zone. It never went lean. It never fell on its face. So … that was it. Just needed a new $20 fuel pump.

The only strange thing is that now at WOT, I'm now seeing a steady 13.2 AFR. Before it was at 12.2 AFR, which is rich best torque. So, I'm going to go to my handy - dandy spreadsheet to determine the size needed for the secondary main to bring it back to 12.2. Can't see why a fuel pump would have any bearing on WOT AFR. Maybe it's got to do with the fuel, I don't know. But it needs more fuel at WOT for sure. 13.2 is safe, but optimal H.P. is achieved at 12.2 (at least that's what I've learned).

Thanks all you guys! A special thanks and a couple cold virtual brewskis going out to MOPAROFFICIAL and Mattax!


7milesout