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-   -   What does a 'rising rate fuel pressure regulator' do?? (https://www.scoobynet.com/general-technical-10/75635-what-does-a-rising-rate-fuel-pressure-regulator-do.html)

MorayMackenzie 03 January 2002 11:40 AM

Cossie convert,

If I am not 100% sure about a technical statement I make, I will qualify it with something like "I believe". John made a statement with no such qualification, and it was wrong. This kind of dissinformation cannot help in any way, it can only cause problems.

Moray
bbs.22b.com

[Edited by MorayMackenzie - 3/1/2002 11:55:57 AM]

The Woodman 27 February 2002 04:07 PM

Heard a lot of talk recently about the merits of fitting one of these to a normally aspirated engine (Sport) - I think TSL do them. However, nobody has been able to explain how it works and what it does exactly as opposed to a OE fuel pressure regulator. Any ideas greatly appreciated.

Graham

JohnD 27 February 2002 04:33 PM

This type of regulator allows the fuel pressure in the rail to rise with engine rpm. The std. item maintains a relatively constant pressure. They can cure pressure related problems such as flat spots. The FSE item helped with a modified Mondeo (Turbo`d) I had but If you have`nt actually got a problem don`t bother.
JohnD

The Woodman 27 February 2002 10:19 PM

Thanks John - I don't think I'll bother as they aren't particularly cheap with fitting!

MorayMackenzie 01 March 2002 12:14 AM

John D is incorrect or just plain wrong.

FPRs regulate the fuel pressure in relation to the manifold pressure. Linear FPR's increase fuel pressure at a the same rate as the manifold pressure, rising rate FPRs increases fuel pressure in faster, non-linear fashion.

Moray

[Edited by MorayMackenzie - 3/1/2002 12:19:42 AM]

Cosie Convert 01 March 2002 07:10 AM

Moray

You are correct, however to be fair to John D, the FSE sales blurb presents a graph showing fuel presure rising at an increased rate plotted against RPM.

cc

teddykiller 01 March 2002 07:31 AM

hmm would this cure my flat spot on my turbo???

Cosie Convert 01 March 2002 06:59 PM

Moray

That will be why you edited your post then after a re read :D :D

cc


JohnD 01 March 2002 09:07 PM

My sincere apologies for making my reply too simplistic.
JohnD


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