[s-cars] Stock FPR BAR?

[mlp5]

Cody - 

I think its the other way around.  The AAN "stock" fuel pressure regulator
is supposed to be set @ 3.8 bar; I believe the RS2 FPR runs @ 3.2 bar IIRC ~
bigger injectors, slightly less initial fuel pressure.  

The stock AAN fuel pump, on the other hand, is supposed to make at least 4.0
bar of pressure when running, or it needs to be replaced.

FWIW, since I happen to have the Dymant/Bentley Fuel Injection pamphlet out
anyway, according to it, once you have your fuel pump up & running, 

".... activate remote control, until fuel pressure no longer increases. "
[Fuel Pressure, pump on] Must be:  4.0 - 4.2 bar (58 - 61 psi) with fuel
pump running
" [ "    "       pump off] Must be:  3.4 - 3.7 bar (49 - 54 psi) immediately
after fuel pump (remote control) is switched OFF 

Note the test gauge in this case is installed between the fuel pump and the
FPR.  see sections 24-14 etc.

Last, FWIW there is a generally accepted ROT for "guesstimating" just how
much a .2 bar fuel pressure difference makes in terms of fuel delivery,
something like the square root of the difference between the "new" pressure
(say 4.0 bar) minus the old (3.8bar or psi) x the old fuel rate.  

HTH

mlp

>-----Original Message-----
>From: s-car-list On Behalf Of Cody Payne
>
>I know the RS2 FPR is 3.8 BAR but what is the stock FPR? 3.0?
>I am running all RS2 and RS2+ on the turbo "except" for the 
>FPR which is still stock.  Need to measure EGT's to see if 
>they are high..but really just curious until Mihnea gets in town.
>