Adding extra Fuelpump

[3valveFox]

This question might be already answered before, but..I got a forged bottom-end 3valve in a foxbody. About to go to 60lb injectors and a Paxton novi 2200 with 16-18lbs. The car has a Aeromotive Stealth intake 340lph with 8an feed, 6an return and aeromotive regulator to make the returnless 3valve into a return style. Is the 340 going to be able to support the 600+ hp? If not can I run an external walbro 255lph or Aeromotive A1000 as a "booster-pump" with the 340?

Thanks for the input.

 

[stkjock]

What fuel?

 

[3valveFox]

Just pump gas 93. Got a water/meth kit for later on.

 

[stkjock]

Looks like the 340 should be enough.

http://www.deatschwerks.com/resources/fuel-calculators/fuel-pump-calculator

 

[JeremyH]

340 will be close with 60's. What is your base pressure? If you don't quite get where you want you could swap the 340 out for a walbro 405. Have you upgraded the wiring to the pump? Should be 10 gauge power and ground.

 

[3valveFox]

Alright guess I will give it a shot lol. I really didnt wanna drop the tank and do a new pump because I just did the 340 couple months ago lol. If the 340 doesn't hold would an external walbro 255 help it? The wires are I believe 10g. Its ran off an frpp control box.

 

[JeremyH]

An external pump would help as well I don't know how well a lower flowing pump would hold up downstream of a higher flowing pump.

 

[lito]

^yes.

We have a car with the internal stock pump plus an inline walbro making 550. Can't tell how much it has left but it has been working great like that with no significant pressure drop.