I plan on putting down 450 rwhp, and a tnt 100 shot, what do you think will be the best pump for this. I will have 30lb injectors also

 

a single walbro hotwired should suffice
you might also consider going to a wet set up with a fuel cell with its own pump and regulator, thats seems to be what the big boys are using.

 

You would be fine with the walbro 255 lph high pressure pump (GSS340) , it will support 600 hp. Only $99 at www.neweraperformanceparts.com , that's where I got mine .

 

Get the Racetronix plug and play. No voltage dropoff, installer friendly.

 

Were running a c5 with 430 rwhp and a 125 shot on a stock pump with no issues at all...yet anyway. Its a mid 10 car.

 

Well you got lucky most stock pumps fall short about 475-500rwhp. An intank Walbro hotwired is the way to go.

Nate

 

we had a 255 in a car that made 430 motor and 540 bottle on the dyno, and it got lean. thats why i was wondering what the next step up was. thanks for replys

 

If thats the case, perhaps a bigger pump will result in better Et's. Then again..if its running a lil lean that can help to a point. Seriously, I think we will upgrade that car just to be safe anyway.

 

A healthy fuel system is cheap insurance and should be a #1 priority when building any HP motor combo.

 

Well said.

Nate

 

What are you guys talking about when you say hot wired?

Chad

 

A 'Hotwired' fuel pump is a slang term which indicates that the pump is supplied with power directly from the alternator / battery through a dedicated wiring harness. Please see our web page for a wide range of PnP 'Hotwire' harnesses.