All Things Mk5 > Performance Modifications
rs4 pres?sure reg
Janner_Sy:
what is this, is it the low pressure fuel sender. if it is i had it rplaced on mine under warrantee, and was a pain in the ass to do.
is his likely to fix these dips or is it just another mod that miht fix it??
danishmkvgti:
--- Quote from: Hurdy on March 29, 2010, 08:07:23 pm ---
--- Quote from: danishmkvgti on March 29, 2010, 07:06:01 pm ---
--- Quote from: jonnyc on March 29, 2010, 06:59:01 pm ---Seems to lower the LPFP duty cycle % too which on anything larger than a K04 is only a good thing! Well worth doing if the inlet manifold is off..
--- End quote ---
i hope it might help me with this dip:
--- End quote ---
Bl00dy hell Danish, that ain't no dip that's a black hole :surprised:
--- End quote ---
tell me about it, but we are working on it. any ideas?? :confused:
Hurdy:
--- Quote from: danishmkvgti on March 29, 2010, 08:38:11 pm ---
--- Quote from: Hurdy on March 29, 2010, 08:07:23 pm ---
--- Quote from: danishmkvgti on March 29, 2010, 07:06:01 pm ---
--- Quote from: jonnyc on March 29, 2010, 06:59:01 pm ---Seems to lower the LPFP duty cycle % too which on anything larger than a K04 is only a good thing! Well worth doing if the inlet manifold is off..
--- End quote ---
i hope it might help me with this dip:
--- End quote ---
Bl00dy hell Danish, that ain't no dip that's a black hole :surprised:
--- End quote ---
tell me about it, but we are working on it. any ideas?? :confused:
--- End quote ---
Any logs for me?
Looks like either fuel cut, timing pull or even the dreaded onset of compression surge, but as for the cure, that's a different matter!
You are on a stock GTI block from what I remember and so the compression ratio will be 10.25:1 rather than the 9.8:1 of the ED30 block. This may also account for the bigger dip as some ED30/Cupra/S3 guys get this dip, but to a lesser extent. I'm sure you can get gasket sets to reduce the compression ratio by a few points, which may help if that is what it is and it would be less expensive than just opting for lower compression pistons to try and get rid of it. There are tuning options, but I'm assuming that you are already covering that side of things.
HTH :happy2:
micky 32:
I'm on the standard GTI block higher compression with a KO4 and not experiencing the flat spot at all
Janner_Sy:
did you here what happened to harrys vRS mickey.
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