4 bar fpr

Mitchy

TTRS
Oct 12, 2004
2,310
0
4 bar FPR will not increase performance in any kind of way.

Revo use it in their stage 2 setup merely for safety purposes, but jabbasport and CC for instance do not require it. On the LCR setup anyway.

You have smaller injectors in the LC so you wont get the same flow as the LCR on 3 bar.

LCR on 3 bar is approx 386cc injectors and when a 4 bar is used it makes them around the 440cc mark.

I have no idea though what 3 bar and 4 bar does to LC injectors
 

acidstrato

My Fast says shut up!
Dec 9, 2004
5,942
0
Newport, South Wales
thanks kindly...how do you know this? is this from experience?? At what point of tuning will you need a 4bar?

i know this because i've read up and understand what a fuel pressure regulator is.

with my car I've reached the stage where others have chucked on a 4bar fpr because they were told to if they wanted revo stage 2 software installed but i reluctantly decided not to. not just because i cant be arsed to pay 40 quid to something i dont need and wont do anything, but that was one of the reasons

from what i've gathered in the past you only really need to fit a 4bar fpr when you start going big on the injectors for a big turbo conversion for example so that the correct pressure is maintained
 
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