TDI and IDI cam question? - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source.

• TDI and IDI cam question? by Rabbit on Roids on 19 Jan, 2010 10:59
• is there any gains from the TDI cam? will it even work? just a thought i had...
• #1 by blackdogvan on 19 Jan, 2010 14:18
• Nawww, AAZ cam is a upgrade for a 1Z/AHU.
• #2 by RabbitJockey on 19 Jan, 2010 18:01
• yeah i was thinking an older cam is probably better because of the later emissions
• #3 by smutts on 20 Jan, 2010 13:17
• Quote

  Well, no AAZ's at our local friendly breaker, so an early TDi cam out of a Mk3 passat it is. Unknown miles, which is a nuisance as the mileometers in these things are electronic, so who knows? Undecided. Just for the interested the lobe measurements were, Base circle 37.98mm, Best Tip to Base 46.28mm, Worst 46.12mm.
  So lift would be assumed as 8.3mm. But looks as though some wear is on its way. 0.16mm, but hopefully it will make less racket than the present occupant. Wish me luck. Grin

  
  

  Quote

  Hmm....... Deep thought. Just measured the cam as is in the engine. This is a SB engined GTD, so should be the real deal, Base Circle same or similar to above 37.98mm No.1 cam peak I measure 46.82mm, No.2 is 45.80mm, No.3 is 46.81mm, Oh joy, clapped cam, I have found it! No.4 45.82mm WTF says I, No.5 45.82mm, depression setting in, No.6 46.80mm, No.7 45.82mm, No.8 46.82mm. So the good news is I have a fine camshaft, If I have it right, the valves go EIEIIEIE, if so then Exhaust lift is 8.84mm ish, Intake lift is 7.84mm ish. Weird, go figure. Huh
  

  
  Here was the full monty. http://www.vwdiesel.net/forum/index.php?topic=21328.msg164903#msg164903
  
  Should give you an idea of what you are up against.
• #4 by blackdogvan on 20 Jan, 2010 14:22
• 
  
  Just missing one tiny important bit...
• #5 by ryanp on 20 Jan, 2010 15:41
• Does it seem an AEY is an upgrade for IDI and TDI??
• #6 by blackdogvan on 20 Jan, 2010 16:31
• Anyone remember the lift numbers for the AAZ cam?
• #7 by NintendoKD on 20 Jan, 2010 19:22
• Since we are on the cam subject, my aaz cam needs a cam gear, didn't come with one.  Is there a substitute, or do I have to use the aaz cam?
• #8 by Rabbit on Roids on 21 Jan, 2010 07:58
• put a 1.6 cam sprocket on it
• #9 by RabbitJockey on 21 Jan, 2010 14:44
• can we dig up the numbers of 1.5, n/a cams, eco cams, and 1.6td cams?  perhaps different years were different as well.  also the aey and 1y are very similar and may have the same cam
• #10 by NintendoKD on 21 Jan, 2010 21:11
• Wait! don't tell me that the turbo cam and the N/A cam sprocket are different, I just got one from another member.
• #11 by Rabbit on Roids on 22 Jan, 2010 06:35
• Quote from: Trev0rbr on 21 Jan, 2010 14:44

  can we dig up the numbers of 1.5, n/a cams, eco cams, and 1.6td cams?  perhaps different years were different as well.  also the aey and 1y are very similar and may have the same cam
  

  
  the lift atleast, is the same on all diesel cams ive played with. my 1.5, 1.6, and 1.6td all have roughly the same lift.
• #12 by foxracer1 on 22 Jan, 2010 09:52
• Quote from: NintendoKD on 21 Jan, 2010 21:11

  Wait! don't tell me that the turbo cam and the N/A cam sprocket are different, I just got one from another member.
  

  
  The cam sproket isn't but the cam specs may be slightly. Nothing major. Physically All IDI cam interchange and i believ so do TDI cams.