V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

fuel pressure

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Old Jul 19, 2001 | 11:41 AM
  #1  
ChevyGuy87's Avatar
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From: Kingston, NH
Car: 2004 Wrangler Rubicon
Engine: 4.0
Transmission: NV3550
Axle/Gears: Dana 44s with 4.10 and air lockers
fuel pressure

i just read in the FAQ section that if you put an adjustable fuel pressure regulator on a 350 you'll get lots more torque from just changing the fuel pressure. would this help us V6ers at all?
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Old Jul 19, 2001 | 12:00 PM
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Maybe... if you can find a way to get at the adjustment... I'm debating putting an AFPR on my V6 but I doubt whether it would help. Its more of a tuning aid then a power adder.
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Old Jul 19, 2001 | 03:20 PM
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Car: 1986 Firebird
Engine: 2.8 V6
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It's no miracle piece; your engine will have to be modded to the point where it needs extra fuel. I'd expect a mild gain, maybe 5 hp or 5 ft/lbs or torque... think of it as the same thing as putting a K&N on.

Now, if you have a cam and some intake/head porting, the AFPR would help a lot more. Like Drew said, you buy it to tune your combination in, that's all. Sort of like playing with ignition timing...



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