12 Valve Engine and Drivetrain Talk about the 12V engine and drivetrain here. This is for 1994-1998.5 engine and drivetrain discussion only.

new 12 valve, new pump, twins, 100 plate, old 180hp injectors and no power

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Old Jun 16, 2011 | 08:53 PM
  #1  
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From: fla
new 12 valve, new pump, twins, 100 plate, old 180hp injectors and no power

need help making power with this ford conversion, it's a 1999 super duty with a 12v, ported head, twins hx35 and ht3b, 6.0 intercooler, 838--160hp pump, 100 plate, new lift pump, fuel pressure stays above 20-22 psi even under load, it seems to reach a full 2700 rpm, but when I road test it it has little power and will only reach 55mph top speed. I could use a few suggestions. thanks.
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Old Jun 16, 2011 | 10:32 PM
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From: Red Deer, Alberta Canada
Does it smoke at all? To me the injectors may be a little small for all that air.
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Old Jun 16, 2011 | 10:42 PM
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From: fla
smokes only at first throttle tip in. yeah im sure their small im just getting it going and their what had but it doesnt make 30% the power of a stock 1st gen. Ive checked linkage travel.pulled the shut off solenoid out and im probably going to recheck my timing , it should be at 15*.
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Old Jun 17, 2011 | 01:33 AM
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From: Missouri
Sounds like a nice truck. Can you also post some pictures? And what trans are you running?
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Old Jun 17, 2011 | 07:45 AM
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From: fla
I am using a 47rh with the dodge pcm and harness. it sounds great and runs good right off idle but then runs out of fuel fast. I'll try to get some pictures later today, my wife kids and I have to work cows today. thanks for the reply.
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Old Jun 17, 2011 | 03:53 PM
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From: Albuquerque, NM
what does it free rev up to? maybe the gov springs are way tight?
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Old Jun 17, 2011 | 08:36 PM
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From: fla
I dont know for sure. I haven't got the ford tach working yet but compared to my two dodges it sound like it goes to full fuel with no load.
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Old Jun 20, 2011 | 05:54 PM
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From: fla
well I checked the timing and it seems to be right. I'm at a loss.
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Old Jun 20, 2011 | 09:36 PM
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From: fla
I pulled the afc, took er' for a spin and stuck my foot to the floor and got a fair amount of smoke and some power. I dont have my boost and pyro in yet so i dont have boost numbers and idont have the right harmonic balancer for the tach signal so no overdrive and tc which with 4.10 gear tops at 60 mph but, its getting narrowed down pictures are coming.
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Old Jun 22, 2011 | 08:56 PM
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From: fla
Well I found a bad restriction in the tank so, I'll test drive it tomarrow and see. thanks for the help.
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