Golf II GTD with 1.9 AAZ engine --- EVO II - page 16 - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source.

• #225 by Alleslowbuged on 20 Jun, 2013 12:35
• Hi,
  
  today i get my famous Papmahl GTD II exhaust system (the GTD I system has have the best diesel sound ever) and the big front mounted Papmahl intercooler (similar to merc sprinter intercooler) but better ports for a MK 2.
  
  I don't know when i will install the front mounted intercoller, because i have to change the position of the oil cooler for that. But if it work without bigger problems i will try to install the exhaust system this weekend.
  
  Best Regards
  Alleslowbuged
• #226 by carrizog60 on 20 Jun, 2013 18:06
• wont a simple and cheaper straight pipe be better for performance?
• #227 by Alleslowbuged on 21 Jun, 2013 02:49
• Hi,
  
  the Papmahl mufflers has no restrictions (as also my current muffleres has no), they are "straigth pipes" make of perforated sheets with a bit insulating wool around, so from a performance point of view there is no difference between a striaght pipe and this type of mufflers.
  
  Best Regards
  Alleslowbuged 
• #228 by Alleslowbuged on 05 Aug, 2013 17:56
• Hi,
  
  i have had a very hard overheating situation three weeks ago, which causes a hard leaking headgasket ( 2 ltr. water per 25 km without load, without boost) , but yesterday i managed to do my first official sub 15,0 second 1/4 mile run (the same head, the same crack, the same headgasket). My best run was a 14,87 s.
  
  I will post some more details the comming days.
  
  Best Regards
• #229 by RabbitJockey on 05 Aug, 2013 18:24
• yay an update from deutschland!!!
  
  good luck with ur crack and hg issues...
• #230 by carrizog60 on 09 Aug, 2013 18:08
• time to source a new head and go more gentle on the dremel  
  
  nice time btw,now if you could have more boost out of it...
  
  
  dont want to highjack but on a side note in portugal a tdi managed to be on the 10´s.
  
  dont know for you guys but idi or tdi is a 1.9 diesel and for me thats impressive!
  http://www.youtube.com/watch?feature=player_embedded&v=DihwmYVw9hs
• #231 by CrazyAndy on 09 Aug, 2013 19:53
• Sorry to hear of your water jacket failure in your modified head.  I hope you are able to fix it, as this is one of my favorite AAZ-engined cars on here.  Glad to hear you have beaten your previous 15 second attempts. 
  IMHO I think you should run the front mount intercooler; that way you are not stuck scavenging air from around the bottom of the car near the hot asphalt, and can pul air from a larger area behind the radiator grille.
• #232 by Rising on 10 Aug, 2013 11:59
• A golf diesel in the 14's! This is outstanding! Congratulations and sorry for your loss!
  
  Now if i can get mine out of the 20s! 
• #233 by RabbitJockey on 10 Aug, 2013 15:55
• u can get to 16's easy, my old 1.6td with k24 would do low 16's only mods was increased boost and fueling, cone filter and exhaust.  didn't even have governor mod.
• #234 by Alleslowbuged on 10 Aug, 2013 17:05
• Hi,
  
  you are right, 16,x s and also high 15,x s are easy, but to get into the 14,x s took me 3 Years. Tomorrow is a 1/8 mile race were i will start also, but unfortunatelly my three days of full work in my garage did not look like pay of anyting.
  
  
  
  
  
  
  
  I took of the gearbox to change the sport clutch to a sachs race engineering sinter metal clutch:
  
  
  I also bought some stuff to soften my sliks, but it came to late to use it for tomorrow.
  
  
  I also change the intercooler to a front mounted cooler, this was my selection (Sprinter, Papmahl, Volvo):
  
  
  Therefore the oil cooler need a new place:
  
  
  I choose the papmahl, which is specialy for the golf mk II, but have to grind a bit of the front:
  
  
  
  
  
  
  Today i have also installed a water methanol injection, which i have used in my BMW E28 a couple of years ago. Because it was late today when i finish my work, i forgot to make picture from the intercooler pipes and the waes system. Anyhow my three test drives today was all slower than last week, i did not change anything on the injection pump or the turbo, but the turbo spools much worse than last week and there is a lot of smoke with the same pump setup. The only different is a new fuel filter, but i can not image how this could make my car slower. In the highest rpm range (4800 - max.) i think it is nearly as quick as before and low end grunt is also the same, but mitrange is much worse than before and i have no idea why? 
  
• #235 by theman53 on 10 Aug, 2013 17:37
• Must be the IC? I suppose the filter could be restrictive but with black smoke you would think it is flowing just fine.
• #236 by Alleslowbuged on 10 Aug, 2013 18:00
• Hi,
  
  yes after sitting here for a while i would agree, must be the intercooler, but why? The Intercooler is approximate twice as big as the stock VW intercooler, it should be less restrictive and not more restrictive, thats the reason why i installed it. Do you have a good suggestion, how to test the intercoller in regard of flow capability?
  
  Best Regards
   
• #237 by 8v-of-fury on 10 Aug, 2013 18:42
• Could it not just be extreme lag?
• #238 by theman53 on 10 Aug, 2013 21:24
• Well the issue probably is too much flow. The air might not be getting cooled in the bigger units as it flows straight through before getting colder. I went from a 28x7.5x2.5 to a 28x5.5x2 *or so* and have less EGT issue than I did before on the last engine...but this engine/turbo setup is wildly different so it is apples and oranges. I do think the slightly smaller intercooler helped spool and cooling function. I honestly don't know what it is other than those guesses.
• #239 by 8v-of-fury on 10 Aug, 2013 21:34
• It is a tough one, because we are not scientists.. WE have no idea LOL.