MK5 Golf GTI

All Things Mk5 => Performance Modifications => Modifications & Technical Area => Revo Zone => Topic started by: chopper on December 13, 2012, 07:09:54 pm

Title: rs4 fuel pressure valve
Post by: chopper on December 13, 2012, 07:09:54 pm: Was debating getting a rs4 fuel pressure valve for my REVO 2+ edition 30..... APR HPFP, OEM REV DV and PCV, APR RSC TBE, Forge twintake and twintercooler....
Has anyone else got one for the same/similar setup and found it made a difference?
Title: Re: rs4 fuel pressure valve
Post by: bacillus on December 13, 2012, 08:19:22 pm: May or may not make a difference depending on if your present value is totally in spec with a cracking pressure of exactly 130bar.
Title: Re: rs4 fuel pressure valve
Post by: AndrewJB on December 20, 2012, 05:36:24 pm: As said it will only make a difference if you car is requesting the amount of pressure that the OEM one cant take

Im fitting one to my 2.0TFSI just for the sake of it, even though APR said i dont need it
Title: Re: rs4 fuel pressure valve
Post by: Hurdy on December 20, 2012, 11:02:07 pm: I think APR supply it with their K04 kit (definitely the stage 3 kit), so for the cost of one it is a no brainer. Bit fiddly to fit though.
Title: Re: rs4 fuel pressure valve
Post by: AndrewJB on December 21, 2012, 07:14:46 am: Hence why im paying Alex to do it :laugh:
Title: Re: rs4 fuel pressure valve
Post by: dokez on December 29, 2012, 08:00:16 pm: fiddly but its simple to fit. I didnt notice no difference so took it off and sold it. stage2+ for me.
Title: Re: rs4 fuel pressure valve
Post by: bacillus on December 29, 2012, 08:35:29 pm: Quote from: dokez on December 29, 2012, 08:00:16 pm
fiddly but its simple to fit. I didnt notice no difference so took it off and sold it. stage2+ for me.

What difference were you expecting??
Title: Re: rs4 fuel pressure valve
Post by: dokez on December 29, 2012, 08:45:09 pm: remove the flat spot up higher revs that occur when stage2+
Title: Re: rs4 fuel pressure valve
Post by: bobsey on December 30, 2012, 06:25:34 pm: Quote from: dokez on December 29, 2012, 08:45:09 pm
remove the flat spot up higher revs that occur when stage2+

Dont you mean flat spot that shouldn't occur when running on stage 2+, is it revo by any chance?
Title: Re: rs4 fuel pressure valve
Post by: dokez on December 30, 2012, 08:59:05 pm: correct. However reading from here its normal and the rs4 sorts it out but not for me.
Title: Re: rs4 fuel pressure valve
Post by: bacillus on December 30, 2012, 10:28:45 pm: Quote from: dokez on December 30, 2012, 08:59:05 pm
correct. However reading from here its normal and the rs4 sorts it out but not for me.

Did you log your actual vs requested fuel rail pressure?
Title: Re: rs4 fuel pressure valve
Post by: bobsey on January 01, 2013, 08:21:07 pm: Quote from: dokez on December 30, 2012, 08:59:05 pm
correct. However reading from here its normal and the rs4 sorts it out but not for me.
Its not normal there is always something to blame for it happing, which i still havent got to the bottom of on mine.
The rs4 return valve did not help mine either.
Title: Re: rs4 fuel pressure valve
Post by: 56OctyVRS on May 16, 2013, 11:29:14 am: It cured my flat spot. Even if it didnt I would leave it on as the oe ones can fail as they get older. At least you would know the fprv is new and working fine.