injector size for a 383?????
11-09-2009, 03:06 PM
#1
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injector size for a 383????? Im almost done with my 383 ls1 build, but im lost when it comes to injector size. A few people are telling me to get the ford greentop 42lb injectors. Im not sure if that is to much for the motor. Could you guys give me some of your opinions on the injector needs.
P.S. the motor will be sprayed with a wet shot.
P.S. the motor will be sprayed with a wet shot.
I guess ill just get the 42lb injectors and turn them down if i dont need that much. 
11-16-2009, 08:50 PM
#6
not to highjack this thread but i am in the middle of the same build and had the same question. But with the bigger 42lb injectors ...what else is recomended to compliment the injectors ? Fuel pump ? filters? etc. ??
11-16-2009, 10:22 PM
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My setup:
Lucas 42lb Injectors
FAST 17mm ID fuel rails
-8 crossover line
Stock feed line with adapter to a a -6 feed
-6 return line
SX Performance Adjustable FPR (set to 63psi)
Single Walbro 255lph high pressure pump
Kenne Bell Boost-a-Pump (activated by NX Maximizer)
The Boost-a-Pump is not required to run 42's. I only use it when I spray a 200hp wet shot using the NX progressive. I put dpwn 492whp and the injectors only touched 70% for an instant in the logs. Most of the time it was 67-68% duty. I have never ran out of fuel.
Lucas 42lb Injectors
FAST 17mm ID fuel rails
-8 crossover line
Stock feed line with adapter to a a -6 feed
-6 return line
SX Performance Adjustable FPR (set to 63psi)
Single Walbro 255lph high pressure pump
Kenne Bell Boost-a-Pump (activated by NX Maximizer)
The Boost-a-Pump is not required to run 42's. I only use it when I spray a 200hp wet shot using the NX progressive. I put dpwn 492whp and the injectors only touched 70% for an instant in the logs. Most of the time it was 67-68% duty. I have never ran out of fuel.
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11-17-2009, 07:32 PM
#9
My setup:
Lucas 42lb Injectors
FAST 17mm ID fuel rails
-8 crossover line
Stock feed line with adapter to a a -6 feed
-6 return line
SX Performance Adjustable FPR (set to 63psi)
Single Walbro 255lph high pressure pump
Kenne Bell Boost-a-Pump (activated by NX Maximizer)
The Boost-a-Pump is not required to run 42's. I only use it when I spray a 200hp wet shot using the NX progressive. I put dpwn 492whp and the injectors only touched 70% for an instant in the logs. Most of the time it was 67-68% duty. I have never ran out of fuel.
Lucas 42lb Injectors
FAST 17mm ID fuel rails
-8 crossover line
Stock feed line with adapter to a a -6 feed
-6 return line
SX Performance Adjustable FPR (set to 63psi)
Single Walbro 255lph high pressure pump
Kenne Bell Boost-a-Pump (activated by NX Maximizer)
The Boost-a-Pump is not required to run 42's. I only use it when I spray a 200hp wet shot using the NX progressive. I put dpwn 492whp and the injectors only touched 70% for an instant in the logs. Most of the time it was 67-68% duty. I have never ran out of fuel.
