2.4 pistons for 1.6 - page 2 - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source.

• #15 by 935racer on 02 Feb, 2008 20:43
• Quote from: "andy2"

  2.4 engine /Pistons are oil cooled that I know for sure

  
  
  Oh ok good to know, last time I saw one of those apart was like 4 years ago, hard to remember now.
  I don't really like the idea of the 2mm less piston height though, I'd rather reduce compression with head modifications to the deck and pre cups.
  
  Hey Andy how is your 1.9 coming along?
• #16 by MJF on 03 Feb, 2008 00:39
• Quote from: "935racer"

  
  MJF do you have the weigt differences between the 1.9na pistons and the TD pistons?

  
  
  Can´t remember exact, it´s been over a year since we weighed those. 1,6TD and 1,9na is ~same weigh, 1.9td is over 100grams heavier.
  
  I have Carrillo rods, which I bought used from ebay. Those were locally fitted to my engine I haven´t lower compression, it´s actually a little higher than stock due bigger bore...
  
  I´ve never disassembled a 1.9na, but it must have at least same length rod than 2.4. And that will be 150mm. Piston is same. 1.9td 144mm and 1.6 136mm
  KY pistons are different than 1.9/2.4. It´s same height than 1.6 piston IIRC.
  
  E: This Mahle web-catalog is pretty handy
• #17 by 935racer on 03 Feb, 2008 09:07
• So someone had the Carrillo rods custom made for this application and than you picked them up or are they meant for something else?
  
  Why not use KY pistons?
• #18 by MJF on 03 Feb, 2008 10:01
• Rods are from Nascar SBC with Honda journals. 1.9 pistons are easier to find .
• #19 by andy2 on 03 Feb, 2008 10:21
• My project is waiting on some h beam rods as I don't feel like trusting the PD100 rods.I figured while I had the head off I'd go a step further and put the rods in now.Once I get It back together I'll have to cross my fingers and hope the turbo's will work.I'm determined to make the turbo setup work properly at all costs!
  
  BTW great numbers Dave also are you using stock rods?Love to see the RPM on later dyno runs.The torque is Fairly conservative with the 1.6 so this might be what helps it hold together better than the 1.9.
  
  Mabye I'll run honda rods too this time Nick :lol: .I was planning on getting the H beam TDI conrods that Kerma TDI sells.The TDI rod is the same dimentions as the 1.9td.
• #20 by 935racer on 03 Feb, 2008 10:33
• Thanks andy, I don't what the heck I did to get the time to come up instead of rpm, rpm was on the computer when we printed it out. Oh well the runs are saved on the computer at the new shop so I'll just get a screen shot on monday or tuesday. But iirc my peak is like 4900rpm and the boost drop was around 5400 or so, the run ended right at 6000rpm.
  
  I am on stock rods, bearings and bolts! I put in ARP mains though, I didn't really do anything to the bottom end. No time, once the new shop is setup I will build a 1.7 bottom end and go for 250whp. The 1.7 should give me a little more torque, so would a smaller turbine housing. At no point does my emp pass my imp.
• #21 by ODwyerPW on 18 Feb, 2008 17:54
• A user by the name scopefrfd was doing something with 1.7 79.5mm pistons in a 1.6 block.
• #22 by Sierra94 on 21 Feb, 2008 10:54
• The 1.9 NA has oil squirters aswell. Atleast my AEF engine mounted in the 1999 Caddy (euroversion).
  
  As far as I know all the 1.9´s has oil cooled pistons. All the NA engines I´ve disassembled had squirters. Might be some early models that didn´t.
• #23 by DA-BRT on 06 Mar, 2008 06:16
• A friend of mine is building a 2100 TD based on a AAZ.
  
  Walking through the Mahle catalog I found these pistons and after buying the pistons they were in my garage for a year. Than I desided to sell them and my friend bought them.
  
  I'm using the 83.0mm pistons from a Ford 1.8TD. Same compression height. Pistonpin diameter. Only needed to cut out space for the oil squirter and a little extra clearance for the crank.
  
  I already asked him for the buildup pictures. This monday or tuesday he is coming to have the pump and Injectors installed. (using a modified LT 2.8TDI pump) I'm going to take some pictures from it.
• #24 by DA-BRT on 06 Mar, 2008 23:53
• A couple of pictures of the 2100TD
  
  
  
  
• #25 by Torchd on 01 Apr, 2008 14:38
• Bert..
  
  
  Which block are you using??  it seems to be 1.9 cuz of water jackets between the cylinders..
  
  can i bore my 1.6block to use 1.7(KY) pistons?
• #26 by DA-BRT on 01 Apr, 2008 23:28
• The block that is used for this conversion is the 1900TD AAZ 1996 with crankshaft from a AFN.
  
  Yes you can use them, but as allready discussed in this forum. Not all 1.7 Pistons are designed for oil squirters and they may not have the same strength as the 1.6TD version.
• #27 by Torchd on 01 Apr, 2008 23:45
• The ones i have do have the cut for oil squirters!!
• #28 by C.Sørensen on 15 Jul, 2008 16:09
• Hello.
  
  what headgasket do you use on this 2.1L ?
  is it tdi rod´s your use ?
  
  best regards Casper From Denmark
• #29 by lord_verminaard on 16 Jul, 2008 09:13
• OMG!  :shock:
  
  Now if only I could find 83mm TDI pistons.   :twisted:
  
  Brendan