Anybody know if the efi B2200 fuel pump and an S4 na RX7 fuel pump have the same flow rating? The both have the same operating pressures, and aftermarket companies list the same part number for a replacement pump. I am running my stock B2200 pump on my swap, and i am wondering if i should switch out the pump. I seem to be running fine, and seems to rev to redline in gear fine, but i have not driven an RX7 before so i have nothing to compare to.

 

If your redlining with no spits, coughs or *** yews, i wouldn't worry about it until the pump dies

 

Mazda has a different part number, for the Rx7 and B2200 pumps, but if the aftermarket doesn't then they should be close enough?

it does look like the Rx7 pump would drop right in, so putting the "correct" pump in, would be easy

 

I can rev to 7,000RPM fine. I was wondering if I was starting to run lean at the higher RPM's. I think I will leave it for now. I have 2,000KM on the swap already, but the truck has 320,000KM, and I think the pump is original.