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split-r problems

  #1  
Old 06-07-2010, 12:03 PM
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I just fitted a forge split-r dumpvalve to my 1.8T (150bhp) A3. Now when i ease off the accelerator i hear the valve dump but when i ease back onto the accelerator its quite jerky. Im running the valve part recirc part atmospheric. Anyone got any ideas? have i got it set too stiff etc?
 
  #2  
Old 06-08-2010, 01:30 PM
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You need to play with the spring stiffness setting. This adjust it to how much vacuum is needed to open it and how quickly it shuts.
 
  #3  
Old 06-09-2010, 10:02 AM
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Thanks Mike, i have had a bit of a play now and it seems better but im not convinced its how it should be
 
  #4  
Old 06-09-2010, 10:17 AM
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Have you tried making it 100% recirc to see if the issue goes away?
 
  #5  
Old 06-09-2010, 04:32 PM
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No i havent to be honest, ive slackend the spring off a bit more and it seems better no but i i havent given it a good run yet so if it is still playing up il try that next
 
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