Adjusting the IP to match the Holset - page 4 - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source.

• #45 by Gizmoman on 28 Mar, 2017 08:18
• The 1.9 is running netter than it ever has. Still, I bought two of these and will mess around with some additional grinding.
  http://www.ebay.com/itm/321182846275?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
  
  I'n not entirely positive they will fit my 1.6 pump but they weren't too expensive.
• #46 by burn_your_money on 28 Mar, 2017 13:35
• Those should fit.
• #47 by burn_your_money on 28 Mar, 2017 15:48
• Aren't you a machinist? You could just make a cylinder and then drill and tap the top of it for a bolt rather than what Bosch did with the stud. You could even make it from aluminum until you find the profile you like then make a steel one.
• #48 by Gizmoman on 28 Mar, 2017 18:25
• Quote from: burn_your_money on 28 Mar, 2017 15:48

  Aren't you a machinist? You could just make a cylinder and then drill and tap the top of it for a bolt rather than what Bosch did with the stud. You could even make it from aluminum until you find the profile you like then make a steel one.
  

  I thought of that, figured I'd start with a "known" value. Who knows, it might be just right although it looks to steep at the beginning.
• #49 by libbydiesel on 28 Mar, 2017 19:33
• I believe the pin should only ride on the single long taper, not on the steeper angle at the bottom. 
• #50 by Gizmoman on 28 Mar, 2017 21:28
• Quote from: libbydiesel on 28 Mar, 2017 19:33

  I believe the pin should only ride on the single long taper, not on the steeper angle at the bottom. 
  

  Yes, I figured the same, and it does appear there is a light and aggressive angles based on position.
  I also ordered and received a new spring with a higher comp rate. It's running quite well now but I can just mark the settings and return to them if needed.
  I'll wait for the pins to arrive and try both one of these weekends.
• #51 by vanbcguy on 30 Mar, 2017 11:22
• Where did you get the spring from? I could use one...
  
  Sent from my XT1097 using Tapatalk
  
  
• #52 by Gizmoman on 30 Mar, 2017 20:23
• Quote from: vanbcguy on 30 Mar, 2017 11:22

  Where did you get the spring from? I could use one...
  
  Sent from my XT1097 using Tapatalk
  

  
  Here you go
  https://www.mcmaster.com/#9657k324/=16zhq8x
  
  You get three and I believe it was around nine bucks for the package. Might be too stiff but they are easy to change. I am hoping that, combined with the new pin(s) I am getting from the UK, it will be more of a gradual increase in both fuel and boost ending in decent HP/torque and EGT's below 1200F.
  
  The pins won't arrive for a bit yet and I'm waiting till they do.