Larger Injectors
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Senior User
Joined: Oct 2003
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Larger Injectors
Yup Yup its me again
i was just wondering where would be a good place to pick up some larger fuel injectors for my 4.6 Ive orderd a supercharger and with all of the air... i think that it will need a little bigger boost from the fuel... plus will a stock fuel pump be able to handle the greater demand of fuel? thanks for the info
95 F150 4x4
351 auto
02 F150 2x4
4.6 auto
K@N Cold Air
ATI Procharger on the way
Tint speakers and Ford Racing euro lights
16's in the quarter at 4800 feet elev.
WYOTECH Grad 8/8/03 Majored in Applied Service Managment Of Diesel Technology.... 
i was just wondering where would be a good place to pick up some larger fuel injectors for my 4.6 Ive orderd a supercharger and with all of the air... i think that it will need a little bigger boost from the fuel... plus will a stock fuel pump be able to handle the greater demand of fuel? thanks for the info
95 F150 4x4
351 auto
02 F150 2x4
4.6 auto
K@N Cold Air
ATI Procharger on the way
Tint speakers and Ford Racing euro lights
16's in the quarter at 4800 feet elev.
WYOTECH Grad 8/8/03
Majored in Applied Service Managment Of Diesel Technology....
Last edited by 1fast4.6; Oct 19, 2003 at 04:28 PM.
New User
Joined: Oct 2003
Posts: 3
Likes: 0
From: Riverside, Ca
Fuel pump
I recommend you get an extra inline pump.
I'm running a Vortec 'charger on my F-150 and installed an additional inline fuel pump from Vortec. Other aftermaket inline pumps will work. Even if you get bigger injectors you still need more pressure to deliver the fuel.
Address the fuel pump issue first, then if you need more fuel, go with bigger injectors or a fuel pressure regulator. Like lxman1 said....it depends on how much boost you want to run.
I'm making just over 6 Lbs of boost with my current pulley combo and started getting detonation so I retarded my timing a bit untill I tackle the injector issue myself.
Keep us up to date on your project.
GAR
I'm running a Vortec 'charger on my F-150 and installed an additional inline fuel pump from Vortec. Other aftermaket inline pumps will work. Even if you get bigger injectors you still need more pressure to deliver the fuel.
Address the fuel pump issue first, then if you need more fuel, go with bigger injectors or a fuel pressure regulator. Like lxman1 said....it depends on how much boost you want to run.
I'm making just over 6 Lbs of boost with my current pulley combo and started getting detonation so I retarded my timing a bit untill I tackle the injector issue myself.
Keep us up to date on your project.
GAR
Senior User
Joined: Jun 2003
Posts: 335
Likes: 0
those trex pumps and boost-a-pump are all garbage.
Do the job right and put a 255 lph pump in the tank and use appropriate fuel injectors for your horsepower level, and appropriate mass air meter.
Then let somebody send you a chip to run the car.
I wouldn't go more than 6 pounds on a stock rod mod motor, the rods in these motors are garbage and they don't like too much boost.
JH
Do the job right and put a 255 lph pump in the tank and use appropriate fuel injectors for your horsepower level, and appropriate mass air meter.
Then let somebody send you a chip to run the car.
I wouldn't go more than 6 pounds on a stock rod mod motor, the rods in these motors are garbage and they don't like too much boost.
JH
New User
Joined: Oct 2003
Posts: 3
Likes: 0
From: Riverside, Ca
I've had good results with the T-Rex pump with my other supercharged vehicles I've owned (10 sec. Mustang, 11 sec. Lightning) so I wouldn't call them garbage and I'm working with a company on a new FMU.
I don't plan on running any more boost on this truck, I'm just going to try and lower max boost lower in the RPM range.
I monitor my fuel pressure and exhaust temp. for any lean conditions.
If your going to add a chip make sure you let your programer know your running a blower. The first chip I ran in my truck had the timing all wrong but they finally got it right.
Good luck,
GAR
I don't plan on running any more boost on this truck, I'm just going to try and lower max boost lower in the RPM range.
I monitor my fuel pressure and exhaust temp. for any lean conditions.
If your going to add a chip make sure you let your programer know your running a blower. The first chip I ran in my truck had the timing all wrong but they finally got it right.
Good luck,
GAR
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