Hey guys, need a little help. I just dropped the fuel tank and I'm in need of a new fuel pump to support my 383 stroker build. Any ideas on a good setup to run. I currently have stock injectors, TB, and intake, but I will be swapping them out soon. So any reccomendations on systems would be appreciated, thanks in advance.

 

How much hp do you plan to make?

Rich

 

Excellent question, plus will it be N/A, F/I, nitrous...
All will affect how much fuel you need to supply. You ask about a pump, but then speak of a system. IMHO, system is the correct word, since you must also design the electrical components (wiring, etc.) to handle the mechanical components (pump(s)) you will require.

 

Well I am hoping to be in the mid-500's N/A, I know thats alot to hope for, but I figure aim high. I have the formulas needed to determine injector size, pump capacity, I was just hoping for some good advice on manufacturer, and any tips you guys might have that will make this as painless as possible for me, being a first timer on a build like this its been tough going, but I'm getting there. Thanks in advance guys.

 

This should do you fine:

http://www.racetronix.biz/itemdesc.a...%2D003&eq=&Tp=

Rich

 

Yes and no. First, the pump draws more current than the stock pump (+9 amps) so the wiring should support it. The stock harness is marginal for the stock pump, and inadequate for a higher power pump. Racetronix also carries a harness (~$60) that will help in this regard. Secondly, Racetronix recommends that you purchase from one of their vendors. Lonnies Performance sold me mine, and was at the phone when I had issues. Racetronix does not even list a phone number.
Long story short - buy the supporting wiring harness, and buy from a vendor who answers the phone when you have a question.
Also note, at your hp goals, a single pump will be right on the borderline. Any more, and a dual pump system will be required.

 

Back when mine was "just" 700rwhp I used a single, intank Bosch 255lph pump (same capacity as the Walbro).

Rich

 

Yes and no. The pumps are (incorrectly) rated at 255 lph, b/c that seems to be the sweet spot for marketing. But when they are put to the test, at a given voltage, a given pressure, their mileage will vary.
Personally, I prefer to be on the safe side and have more capacity than the system requires. But that's just me.

 

I was also using a Kenne Bell "Boost-a-Pump". My preference is for the "just enough" solution as it is usally lighter and cheaper.

Rich

 

That's a good point. The BAP raises the voltage at the pump, so it spins faster and provides more fuel. Seems kind of expensive, though, when you can put in a second pump for around the same price.