PDA

View Full Version : TBI fuel pump



Art Tirrell
06-18-2006, 04:41 AM
I am installing a Chevy TBI motor in my 64 Buick Special and I am looking for an external fuel pump for it. In the past I always used Datsun 280 ZX pumps but that is too much pressure for this application. Any ideas? Thanks

andrewb70
06-18-2006, 06:31 AM
Pressure is just a measure of restriction. I believe the TBI engines ran at about 16-18psi. I don't see any reason why you would not be able to regulate the pressure down to that level using the 280 ZX pump.

Andrew

OHCbird
06-18-2006, 06:48 PM
Have you installed an adjustable FPR on the TBI, or are you using the stock regulator?

Art Tirrell
06-19-2006, 02:06 AM
It has the original regulator. I was not thinking about this in the right way. I was thinking it would put too much load on the pump but the opposite is true. Thanks

Blackbird90
07-04-2006, 10:28 AM
A lot of people running built up TBI engines on third gen F body cars are using TPI pumps for their cars. With TPI systems running anywhere from 39-46 psi depending on year these shouldn't be a problem.

Twin_Turbo
07-06-2006, 04:08 AM
the pump doesn't create pressure but flow, pressure is a resistance to flow and therefore set by the regulator. The resulator setting pressurizes the entire sytsem from pump to regulator at that setting. You mcan run your TBI system w/ the stock regulator and use a TPI pump, it'll keep up with the fuel flow demands far better than the TBI pump will.