All Things Mk5 > Performance Modifications
RS4 fuel valve help
bacillus:
--- Quote from: sub39h on December 21, 2011, 11:06:32 pm ---just out of interest i read somewhere that it's worth fitting this on all versions of tune if you're getting the cam follower inspected/changed.
what are people's views on this?
--- End quote ---
IMO only needed for stage 2+ cars...
Jaywoo-GTI:
Would it have any benefit of fitting one of these without a uprated HPFP?
bacillus:
--- Quote from: Jaywoo-GTI on December 22, 2011, 09:00:05 am ---Would it have any benefit of fitting one of these without a uprated HPFP?
--- End quote ---
Not really as unless your map is requesting 130 bar it would be wasted.
Standard valve cracks at 130 bar whilst the rs4 one is 136 bar.
sub39h:
--- Quote from: bacillus on December 22, 2011, 09:55:03 am ---
--- Quote from: Jaywoo-GTI on December 22, 2011, 09:00:05 am ---Would it have any benefit of fitting one of these without a uprated HPFP?
--- End quote ---
Not really as unless your map is requesting 130 bar it would be wasted.
Standard valve cracks at 130 bar whilst the rs4 one is 136 bar.
--- End quote ---
ah ok. i vaguely remember reading on here that the valve gives out in the mid range, and can cause fuelling issues which are improved with the RS4 valve
it was more of a "it's not a very expensive part, so you might as well do it" type of thing
baldwined30:
I tried fitting this, gave up after two attempts! Get someone else to do it. Nothing like the cam follower. Thats meant to be changed regularly. This is a pig. Most people who are running stage 2+ need it, apart from that, dont bother. I only changed mine as it was making a noise. changed it a the noise disappeared.
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