fuel pump

[thumper]

o.k gents i have a 03 gt w/the trick flow top end kit.i want to add a 100 horse shot of nitrous to it. as of now i have 30#injecters with a stock fuel pump.the dyno numbers are 301hp/306 at the rears done by lasota.my ?bis are the 30#injectors big enuff and what fuel pump should i go with!!!thanks for the help. SEMPER FI

[no1sirbutler]

What is your injector duty cycle now? I would guess you need bigger injectors and def a bigger pump...the focus pump is a good upgrade for the gt's and reasonably priced.

[thumper]

the duty cycle i would not know. they are ford motorsport injectors. never knew about a focus fuel pump. st use to the fox body mustangs. what are the factory gt pumps rated 4??

[no1sirbutler]

Your tuner should be able to tell you the injector duty cycle and get the pump duty cycle as well. Im not sure what the factory pump is rated for, but a fuel pump upgrade is just extra safety. the focus pump is a higher volume pump than the gt.

[thumper]

specs are saying they are good up to 385hp that would be running real close to the limit,but then again what is the factory bottom good 4

[no1sirbutler]

you are asking for a major failure pushing a pump to its limit imo...upgrade the pump at least....bottom end good to 425 bhp.

[Rodeheavers]

The best thing i have used in a single pump application, is steeda sells a 310lph pump, but i have seen em hit max duty cycleat 360hp. I would honestly put a cobra tank and pumps in it to ensure you have enough fuel all the time.

[thumper]

Tim do you have to change tank and all, or can you just change the pump? And will the fuel lines match?

[thumper]

bump?????????????????

[Rodeheavers]

sorry, no you dont have to change the fuel lines, the line going to the hat is the same. And YES, you have to change the tank itself to fit the pumps... i think thats why.

[ostmike]

o.k gents i have a 03 gt w/the trick flow top end kit.i want to add a 100 horse shot of nitrous to it. as of now i have 30#injecters with a stock fuel pump.the dyno numbers are 301hp/306 at the rears done by lasota.my ?bis are the 30#injectors big enuff and what fuel pump should i go with!!!thanks for the help. SEMPER FI


Since you are asking about the injectors I'm assuming you are considering a "Dry" nitrous kit? Why not go with a "Wet" kit and remove the injectors from the equation?
Then you could do one of the following:
1. add a small (1 gal), separate fuel cell/pump for the N2O system and keep it filled with higher octane fuel when racing or empty when you're not. Then leave your current system alone (assuming it's functioning properly).

OR

2. Replace the current pump (if your current pump doesn't have the required capacity) with a higher volume unit. Then "T" the N2O wet system off of the existing fuel system.