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The mkiv Supra Owners Club

increasing fueling for the supra


adi2009

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well i dont think that mine is a rising rate type. what are the physical differences between the rising rate and the normal fuel press. reg. in the FSE brand.

 

thanks

 

adi

 

I believe that they have a true 'rising rate' i.e. 1:7 'racing' type FPR

 

and then the 'normal' one (PBV) that most use on their cars

 

http://www.fuelsystem.co.uk/pbv.htm

 

- which gives a rising rate up to positive boost only (or just beyond) and then acts as a 1;1 as per the normal FPR therafter

FSE Valve.jpg

PBVGAG-A copy.jpg

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Guest Terry S
terry what are the longevity issues do they just pack up all together and the car stops :confused:

 

OK only in mine, and I believe Dude's experience, but they can leak & lose pressure

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I used to have one and it started dropping the fuel pressure badly enough to lose all engine power, and it went at lower and lower boost levels as it got worse. I think Paul Whiffin had one go on him as well because I asked him about it when mine went.

 

-Ian

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