Fuel Pressure Reg. or Not???

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2s4x0
Posts: 107
Joined: Sun Jan 02, 2005 11:09 am
Car: 1998 240sx

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Ok, I am starting to purchase my turbo-kit from boost designs (Stage 1). It no longer comes with the 12:1 fpr. Do I need to buy one? Do I need to buy a fuel pump. I wass reading on zilvia and they said NEVER get a FPR cause it works your stock fuel pump too hard and it will burn it up. I am going for 200hp daily and up to 230-240 rarely. Do i need a fpr, or just a fuel pump, OR do i not need either one because i am not going with MASSIVE horsepower.


Structure240sx
Posts: 5615
Joined: Sun Oct 06, 2002 5:04 pm

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what you are thinking is an FMU (fuel management unit) these raise fuel pressure whne they see boost. they are a cheap way to be able to run a small amount of boost. i did run an 8:1 for months at 9psi with no problems. i also had a walbro 255lph fuel pump

for your needs an 8:1 fmu would work and defintily get an walbro pump to keep up with the fuel pressure. personally i would rather get bigger injectors (370cc sr20 injectors in this case for you) and something to tune them, safc would work nice

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DammitBobby
Posts: 1431
Joined: Fri May 02, 2003 5:41 am
Car: S13 91 KA24DET
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This is a BD kit should answer any of your questions. I installed a 12:1 disc included is Dyno sheet on a very worn engine over 166k.

http://www.nicoclub.com/zerothread?id=96020


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