| Re: 91 Corvette Convertible fuel pump issue |
Subject: Re: 91 Corvette Convertible fuel pump issue by djxib on 2013/8/19 20:49:06 Guys, I just saw this thread. I have an additional pump on my car, mounted behind the tag plate; I also have an aftermarket harness to drive the additional pump. Mine is all wired so that the 'stock' fuel pump supply drives the relay, and the relay drives 2 x separate pump feeds. The Power feed to the relay is hard wired to the alternator so the pumps get 13 volts rather than 12. The theory is that 2 pumps in series work only half as hard as one on it's own; I have a monster pump as my inline and it flows 80gph in my testing, enough (in theory) for 700 HP at 0.6 BSFC. FYI I mounted my aftermarket relay on the underside of the car, and the harness also came with some additional grounding lugs because the stock grounds for the pump are apparently not very good. Tommy - my aftermarket harness is made by Racetronix, I may be able to dig out the schematics this weekend if it would help. |
