fuel pump max horsepower

[98saleen88]

what is the max horsepower a 1998 gt fuel pump can handle before being upgraded?? thanks

 

[catch_15]

I'm PI Swapped with Stage 1 cams and full bolt ons and put down 261whp on a Mustang Dyno (290ish on a dynojet) and my pump is running 92% duty cycle...which is beginning to push the limits of the pump.

 

[Marvin97]

im running 300rwhp(Dynojet #s) on the stock gt pump

 

[NXcoupe]

Anything over 270 is pushing the stock pump to it's limits and can fail. Think about all the money you have invested in your car and how much you would lose if the pump failed and you went lean on a wot run somewhere? A pump is less than 150 bucks and most people can do it themselves. Man if you have to ask you just need the pump. Hell, my 4 cyl coupe has a 255 high pressure/high volume in it, ready for a turbo now.

 

[98saleen88]

any recommendations would love to do an a1000 pump but dont have that type of money

 

[blown98gt]

just do the focus svt pump and that'll be good for awhile if you are looking for a bit more after that go with the AFM inline pump

 

[duff daddy]

Anything over 270 is pushing the stock pump to it's limits and can fail. Think about all the money you have invested in your car and how much you would lose if the pump failed and you went lean on a wot run somewhere? A pump is less than 150 bucks and most people can do it themselves. Man if you have to ask you just need the pump. Hell, my 4 cyl coupe has a 255 high pressure/high volume in it, ready for a turbo now.

+1 on what mike said....
Pi swap = safe bet to do a 255 walbro swap

 

[Willis_98GT]

whats a good price on a good pump for the 98?

 

[Lee12609]

what is your plan for the car???

the focus SVT is a good upgrade if you have alot planned, a N/A npi car with bolt ons will be fine with stock if its in good shape. a PI car with bolt ons is getting real close to the limits of the stock pump, and a FULL bolt on N/A PI w/ longtubes will usually run out of fuel up top...... i'd just get the focus SVT pump and never worry about it N/A...

 

[duff daddy]

thats where you guys are lucky you guys can run the svt's 96 and 7's cant

 

[NXcoupe]

but 96/7's can run a walbro GSS340, which is a much better pump imho. I ran that in my real street car deep into the 10's. When I reached a certain power level with the car, the pump just couldn't keep up anymore and I went to a Weldon pump setup. I will never use anything else on a high hp car again. That pump is fantastic, keeps up with all the demands my race car puts on it. It's louder than the engine at idle, lol.

 

[duff daddy]

good for me my factory stock engine will be just fine with my 255..... it hink

 

[NXcoupe]

really? hmmm, watch the video of the factory stock cars, you'll hear there pumps whining over the engine noise as well. lol.

 

[duff daddy]

well see, I use 38lb injectors so and my walbro seems to be ok here, well have to do a little data logging to see what its doing, but Im sure ill be ok for now, ifanything well see an issue over 8,000

 

[98saleen88]

well im doin to 5.4 lightning swap and only figured it would be smart to upgrade..

 

[1996mustangGT]

5.4 is a different ballgame man. They are reallllly thirsty, better get at LEAST an svt pump and some big injectors...like 42lb`s

 

[Lee12609]

5.4 is a different ballgame man. They are reallllly thirsty, better get at LEAST an svt pump and some big injectors...like 42lb`s

ha, 42s are you serious??? maybe for a boosted 5.4.. stock or even bolt ons 30s will do with no problem, 42s support over 400whp. realistically a bolt on N/A 5.4 will make 300ish.

 

[1996mustangGT]

My bad i thought he said he was doing a lightning swap?? thats why i recomended the big injectors. For a mildly modded 5.4 i`d still recomend the 255lph pump or svt pump and 24/30 lb injectors

 

[Lee12609]

My bad i thought he said he was doing a lightning swap?? thats why i recomended the big injectors. For a mildly modded 5.4 i`d still recomend the 255lph pump or svt pump and 24/30 lb injectors

LOL, reading owns me, you are right, he did say lightning swap.............

 

[1996mustangGT]

Its all good man