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Old 05-02-2001, 01:16 AM   #1
jacktam1
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Member#: 1783
Join Date: Jul 2000
Location: Richmond,BC,Canada
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2000 2.5RS
silver

Question pressure riser

i'm getting vortech FPR from JCSport,who has the Pressure riser with MY00+, useful?and what's your setting?
Thanks

[This message has been edited by jacktam1 (edited May 02, 2001).]
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Old 05-02-2001, 05:02 PM   #2
jacktam1
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bump..anyone?
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Old 05-02-2001, 05:07 PM   #3
Matt Monson
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This has been hotly debated in the past( search archives). But my general take on it is on a car that already runs rich with mods, what's the point? Unless you get a rising rate one that kicks in above 4500 rpm where the MY00+'s(at least some of them, this has been hotly debated as well) lean out a bit.
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Old 05-02-2001, 07:03 PM   #4
blaster88
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Not sure of what use this would be on an NA car.

The Vortech FMU, from the Vortech website, "Increases fuel pressure in proportion to boost pressure." It has a hose that connects to manifold pressure, and when it sees positive pressure, it increases the fuel pressure at a fixed proportion (if you got it from JCS it is probably a 4:1) to boost. Installed in an NA car, it won't do anything.

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Old 05-02-2001, 07:49 PM   #5
jacktam1
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OIC..so that one is non-adjustable?and 4:1 boost=how much psi?
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Old 05-02-2001, 07:52 PM   #6
blaster88
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I think it is 1 psi boost = 4 lbs fuel pressure. So at 5lbs of boost, you get an additional 20 psi of fuel pressure.

Someone will correct me if I am wrong, I am sure.
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