Injector, fuel pump questions

[Twistedoffpurp]

After poking around a bit and being slightly pinched on time to look. I was wondering if anybody knew where I can get injector mapping at like size vs. HP rating, a flow chart of sorts and how far can stock fuel systems go on a 99/01 car? I want to get as technical as I can get. Any help would be much appreciated.

 

[Twistedoffpurp]

I haven't been gone that long someone please clue us all into what equals what in the fuel department, I really think I'm going to be running out.

 

[er22bball0302]

Sawthis in the SHM book.

Injector size(lbs/hr)-------Engine output
----19----------------------304-------
----24----------------------384-------
----39----------------------624-------
----42----------------------672-------
----83----------------------1328------
Fuel flow rates given for:
*45psi Fuel Preassure
*0.45 BSFC(brake specific fuel consumption)
*90% injector duty cycle

 

[droptopsnake01]

how much power are you planning to make?

 

[Twistedoffpurp]

It will be in the neighborhood of under 400 on motor for now. What about fuel pump? I am not sure, but want it there so I don't blow my 4k shortblock.

 

[olgreydog7]

go with a GT pump and 03/04 injectors. I've done alot of searching and that is what I am going with for my FR500 build.

 

[Red3]

my gt pump seems to be maxing out tho. with 422 on a mustang dyno.

 

[Twistedoffpurp]

I'm not gonna push over the 400 mark but I will be close to the neighborhood, I think? Unless I find some more free HP?

 

[Red3]

i understand that but mine is maxing out at 5200. it could be cuz of my surging problem and im hoping it is cuz it should not be maxed

 

[Twistedoffpurp]

That sounds like that you have a tuning issue or something else like a bad sensor or something?

 

[Red3]

well, it was fine at first soooo......i dont think its in the tune. i actually think a vac leak is the cause of all the problems but we will be finding out this weekend what it is

 

[Twistedoffpurp]

Well now I got a deal on 39# injectors and MAF. So what pump should I run? SVT Focus? Aviator? 03 Cobra? I need a decent single pump cause I don't see the point in spending all the coin these guys are asking for the 03 Cobra tank/pump setup just yet.

 

[Twistedoffpurp]

anyone on the pump ideas?

 

[Red3]

focuz with a bap or a gt pump

 

[Twistedoffpurp]

Does anyone have flow numbers on the svt focus pump and the GT pump? I think I read that the focus pump runs like 217 lph, but I haven't found flow numbers for the GT pump?

 

[PSNOUS]

I think the focus one is 255lph and the GT is 315lph

 

[Twistedoffpurp]

What mods are needed to make the GT pump work right? other than the spade connectors.

 

[NVENEM8U]

What mods are needed to make the GT pump work right? other than the spade connectors.

From what I gather the aviator pump is all u'll need for under 400 rw on motor....I think it tops in @ 273 lph....Ebay is ur friend

 

[Twistedoffpurp]

Aviator pumps are so much more expensive though. I just need to know what a GT pump needs to fit the factory fuel line side?

 

[Red3]

i dont have any flow numbers but i know mine is still messin up. now it has problems at cruise but at wot its fine and runs perfect. im thinkin a may need an upgraded fpdm