MK5 Golf GTI

All Things Mk5 => Modifications & Technical Area => Performance Modifications => Topic started by: Decked on September 16, 2010, 05:25:12 pm

Title: RS4 fuel pressure rail
Post by: Decked on September 16, 2010, 05:25:12 pm

Hi,
I went to the night at Brands Hatch a few months ago and I think it was Jabbalad I may of been talking to about an RS4 fuel pressure rail?
Was it that?  Something about fuel pressure and the stock unit doesn't provide enough?  An RS4 unit is a direct replacement....
Can anyone confirm this?  If so, who's done it and what benefits are there?
Have you had any issues and does it work well with a stage 2+ remap?
Is it easy to fit?  :popcornsoda:

Thanks

Title: Re: RS4 fuel pressure rail
Post by: Hurdy on September 16, 2010, 05:56:07 pm

it is the RS4 pressure return valve.

It operates up at 136 bar instead of 130 bar like the S3/ED30 one. PITA to fit, but can help the fuel pressure meet requested easier on a stage 2+ car. :smiley:

Title: Re: RS4 fuel pressure rail
Post by: Decked on September 16, 2010, 08:40:24 pm

Thanks!  Would you happen to have the part number?  or a picture?

Title: Re: RS4 fuel pressure rail
Post by: yin on September 16, 2010, 09:01:24 pm

Quote from: Decked on September 16, 2010, 08:40:24 pm

Thanks!  Would you happen to have the part number?  or a picture?

079 130 757   :happy2:

Title: Re: RS4 fuel pressure rail
Post by: cheungy on September 17, 2010, 10:47:03 am

There you go mate

(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fg234%2Fdavid_phillips95%2Frs4fuelregulatorvalve.jpg&hash=4d437ffa3f1d79d9805f6b381de524fe1abb70d6)

I have also installed this valve on my car as well (just so you know it will not fix flat spots but it does make stage2+ smoother on pick up from driving experience).