change fuel pump or not???

[oscarhdz]

hi, i make a swap from v6 99 to a cobra 99, i swap everything need to start the engine, te cars runs good and everything, but i didnt changed the fuel pump, i still have the v6 pump, so i want to know if the car isnt giving me the hp it should because of the fuel pump, or is it the same fuel pump from the v6 to the cobra, thanks for your answers.
:beer:

 

[Darkc0bra]

I would change it to a SVT Focus pump but that is just me. They are the best bang for the buck.

 

[oscarhdz]

but you do thing that my car isnt doing his best with that v6 pump?? cause i thing so, cause i have this on my car: 32v 99 cobra engine, long tubes, UDP, 2 1/2 complete exhaust with dynomax, 3.73s gears, irs with tokico shocks subframe connectors, all poly bushings and other performance bar, motoblue racing coils, jlt ram air intake, and sct bama tune, and i took it to the track and with normal sumitomo tires, normal preassure on tires, and letting it go at 2,000 rpms, my best was 14.3's i couldnt do less, so maybe the tak off was to slow but i didnt want to brake the irs, i was doing safe take off, but i thing i could do better, so i was thinking maybe the pump wasnt sending enough gas. thanks and please dont laugh on my times

 

[01yellercobra]

I would do some datalogging. If your fuel pump duty cycle doesn't hit 100% I wouldn't worry about it. You probably just need practice at the track. And some decent tires.

 

[oscarhdz]

thanks how do i do the datalogging can you tell me please, and yes i need practice its my first time going to the track, thanks

 

[swt99svt]

I would change it to a SVT Focus pump but that is just me. They are the best bang for the buck.

+1. Think about the mileage your car had and the age of the pump itself. You bumped the power and went with and entirely different power plant. Spend the $$$ and save your motor from grenading. If anything, you'll have the extra fuel to spare when you go FI.

 

[oscarhdz]

ok thanks a lot, do you know a page where i can find the svt pump, cause on ebay it come s uo a lot of different pump aftermarket and everything, and i dont know a lot of fuel pumps, so i need your advice. thanks

 

[swt99svt]

ok thanks a lot, do you know a page where i can find the svt pump, cause on ebay it come s uo a lot of different pump aftermarket and everything, and i dont know a lot of fuel pumps, so i need your advice. thanks

Can't speak to the SVT but I bought the Ford GT pump @ Jegs for $169 and that was better than any price I could find. The second piece you need is the submersible fuel line and that part number is #27093 and it's made by Gates.

 

[oscarhdz]

but are you running on turbo or supercharger?? or did you installed a fuel regulator too?? cause its not too much lph 255 for a N/A. just asking?? thanks for your help or do you have your oem cobra fuel pump, maybe i can buy that one.

 

[swt99svt]

but are you running on turbo or supercharger?? or did you installed a fuel regulator too?? cause its not too much lph 255 for a N/A. just asking?? thanks for your help or do you have your oem cobra fuel pump, maybe i can buy that one.

I'm on a blown setup. I will have my stock cobra pump available once the install is complete.

 

[oscarhdz]

ok pm when you have it ready to go, please, thanks.

 

[Miette]

I thought all Mustangs in 99 used the same fuel pump, sixer, GT, and Cobra.

 

[oscarhdz]

i saw on a forum that the v6 has a 85 or 90 lph fuel pump, and the cobras a 155 lph pump. but i dont know.

 

[scotts99snake]

I had a problem with the SVT Focus pump when I procharged my 99 cobra. Other guys have had no problems. I will say if you plan on supercharging it in the future, I would bite the bullet now and buy the 03 tank and pumps. Save yourself the headache. If you do decide to go with the focus/gt single pump setup you can save yourself a few bucks on the submersible fuel hose and buy the plastic line as shown in this thread: http://www.svtperformance.com/forums/engine-tuning-214/762154-my-pprv-delete.html

 

[scotts99snake]

I thought all Mustangs in 99 used the same fuel pump, sixer, GT, and Cobra.

They did.

 

[oscarhdz]

ok thanks a lot, right now supercharger or turbo its not on my plans, too much cash for me right now, im planning to finish it from the outside, and then im going to get the intirior of the cobra 03 04, and then back to the engine. i think im going to go with the focus pump, thanks.

 

[Brutal Metal]

I had a problem with the SVT Focus pump when I procharged my 99 cobra. Other guys have had no problems. I will say if you plan on supercharging it in the future

I can relate, just maxed the Aviator Bap setup on the Dyno today at 5700 rpms and 486RW, gonna modify the stock tank to accept the twin Cobra hat and basket!

 

[oscarhdz]

I can relate, just maxed the Aviator Bap setup on the Dyno today at 5700 rpms and 486RW, gonna modify the stock tank to accept the twin Cobra hat and basket!

i saw on your sig that you have IRS, on the track do you get any type of wheel hop or something? or did you erase it with only the billetflow brace? its cause i have irs too and i have all mm bushings, subframe connectors, billetflow cover plate, kenny brown brace, tokico rear shocks, and when i launch at 3,500 rpms it still does wheel hop!!! i dont know what else to upgrade to launch it hard. i need to launch it at 1,500-2,000 rpms to dont have that problem.

 

[01yellercobra]

i saw on your sig that you have IRS, on the track do you get any type of wheel hop or something? or did you erase it with only the billetflow brace? its cause i have irs too and i have all mm bushings, subframe connectors, billetflow cover plate, kenny brown brace, tokico rear shocks, and when i launch at 3,500 rpms it still does wheel hop!!! i dont know what else to upgrade to launch it hard. i need to launch it at 1,500-2,000 rpms to dont have that problem.

You need stickier tires. A set of DR's will help. If you can get a set of tires for the track it might be worth looking into slicks.

 

[oscarhdz]

so if i buy some nittos it will help me more than the sumitomos i have to avoid wheel hop, and the slicks would be even better. but with some nittos are fine right?