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Few questions relating to FPR

jwfcms

Active Member
Sep 14, 2008
384
1
UK Yorkshire
i have a 210 LCR remapped by *********, havnt had a brill experience with them but was ok and they put it on the rollers made 258bhp. after a 007P, and high flow k and n filter. never had a problem with the map and seems to run fine.

i have a 4 bar fuel pressure regulator on at the moment. just wondering if i need this on? what difference does it make, some people say to use it, some dont? what is it going to do as obviously the injectors are controled by the ecu anyway as to how much fuel to let in? so why change the reg ? what pressure is the fuel pump itself anyway? 3 or 4? and what will using a 4 Bar FPR do? is there any point me having it on?

It is a custom map running around 25 peak boost and holding at a steady 19-20ish...
 
Last edited by a moderator:

DPJ

...........
Dec 13, 2004
7,996
2
NN Yorks / Salento
www.seatcupra.net
The fpr is always chosen by the mapper and determines the amount of fuel delivered through the injectors. You should never change the fpr from that specified - your fueling will be all wrong.

A 4 bar fpr will deliver more fuel per injector opening period than a 3 bar during the same time.
 
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