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ado	23 May 2012 10:41 PM

Fuel pressure

Is around 4.75 bar ok?
MY53 WRX STI, RCM fuel pump

scoobyricht

23 May 2012 10:50 PM

4.75 bar, is that with vac off and idle? seems very high to me if so.

prodriverules

23 May 2012 10:51 PM

Standard is around 2.8 bar mate so your way to high if that is on idle as well!

ukimpreza

23 May 2012 11:01 PM

has car been mapped? if so i would stick to the pressure it was mapped for else your fuelling will be out.

ado	28 May 2012 10:56 PM

3 bar idle 4.75 bar on full chat.
Does that sound about right?

ado	30 May 2012 10:35 PM

Any one?

prodriverules

30 May 2012 10:48 PM

Quote:

Originally Posted by ado (Post 10641987)

3 bar idle 4.75 bar on full chat.
Does that sound about right?

That's perfect chap:thumb:
I thought the 4.75 was at idle before and thought gulp that's high lol,3 at idle is fine:thumb:

alcazar

31 May 2012 12:09 PM

Quote:

Originally Posted by ado (Post 10641987)

3 bar idle 4.75 bar on full chat.
Does that sound about right?

Mineshows differential pressure on the gauge, ie: how much f/p is ABOVE boost.

It stays utterly stable at 3.1-3.3 bar.

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