Fuel Pump Question??

[72nismo]

I have a Datsun 510 with a KA24DE Turbo. I am running a stock 300zx fuel pump. Now not knowing the specs on the stock fuel pump I am wondering if that is the reason I keep runnning lean on my set up? I was driving yesterday on the freeway and kept it at 5lbs of boost and my wideband was reading 15 AFR's which is super lean. The only thing I can think of is that the fuel pump is not enough for my set up. Any other suggestions?? Thanks

JWT Tune 370 cc injectorsTurbo Inter cooler FPRAEM Wideband boost controllerboost gauge

[nissanfanatic]

I have a Datsun 510 with a KA24DE Turbo. I am running a stock 300zx fuel pump. Now not knowing the specs on the stock fuel pump I am wondering if that is the reason I keep runnning lean on my set up? I was driving yesterday on the freeway and kept it at 5lbs of boost and my wideband was reading 15 AFR's which is super lean. The only thing I can think of is that the fuel pump is not enough for my set up. Any other suggestions?? Thanks

JWT Tune 370 cc injectorsTurbo Inter cooler FPRAEM Wideband boost controllerboost gauge

Duron is running a 300zx TT fuel pump at 500whp+. A good way to rule out the fuel pump is to test pressure under full load. If you see pressure drop, then the fuel pump is bad, you have a bad fuel filter, or the regulator is bad.

[72nismo]

How do I test for pressure load?

[nissanfanatic]

Install a fuel pressure gauge with the sensor right at the fuel rail, after the filter. Then go WOT and watch it. You may need to be on the dyno for this if you don't have a reading in the cabin.