5 pot TDI? - page 1 - TDI Engine -General Info - VWDiesel.net The IDI, TDI, and mTDI source.

• 5 pot TDI? by oldskool rich on 03 Dec, 2009 21:06
• Hi, i just bort an AUDI A6 2.5 TDI, with engine code AAT
  I was told that these can be increased to 300 BHP just by using a bleed valve, is that true?
  
  also does anyone know the difference between this and the AEL (140 BHP) engine?
  
  i want more power and i have alot of goodies at my desposal, including chargecooler and M112 supercharger. just not sure what will work best? will i need nozzles?
  
  i need input, i will update my progress, will try to get some videos on here if i can make sumthin worth showing off
  
  thanx in advance xx
• #1 by aidan on 04 Dec, 2009 05:08
• http://forums.tdiclub.com/showthread.php?t=166311
  http://forums.tdiclub.com/showthread.php?t=243838
  
  Few threads on tdiclub at the moment, not that specific code though.
  
  Got any 4 cyl mtdi parts knocking about?
• #2 by MJF on 04 Dec, 2009 05:39
• Quote

  I was told that these can be increased to 300 BHP just by using a bleed valve, is that true?
  

  Not true.
  
  DSS Ultime2 injectors, FMIC, 3" exhaust, camshaft, HE221W and custom programming: 281hp/594nm. AEL has bigger injectors and ofcourse programming. Othewise same engine. Bigger injectors is the first thing to do with tdi.
  
  
• #3 by gigaz2 on 04 Dec, 2009 14:29
• aat has a small k16, .187 injectors and a small intercooler, think of it as an early 1z with an extra cylinder.
  
  better design on all the manifolds though (no D shape on the intake, but its not necessary as it doesn't make a sharp turn)
  that exhaust is a piece of art compared with 1z ( and gt2556v bolts on with no mods )
• #4 by oldskool rich on 04 Dec, 2009 22:08
• what M-TDI parts are you after? i have access to lots of parts, try me
  
  i have no clue about electrics, infact i hate them, so forgive me if this sounds like a mega stupid question but where is the "programming" kept? will that be the ECU? can i just change mine for an AEL one? or should i just get mine re-maped, i dont want to beet around the bush, i want big power, but i dont want to spend £300 on a cam to get an extra 5bhp, i spent £80 on my AAZ which doubled it power, id like to do the same hear if possible
  
  So what is my best course of action to get as much power for little money, using bits off other VAG cars is best for me but i will spend money if it will get me results
  
  what about my supercharger? wud that be better than a turbo?
  
  you sure the gt2556v will go straight on?
• #5 by blackdogvan on 05 Dec, 2009 00:33
• Rich you can go 5cyl mtdi pretty easy ya know. LDA on your 5pot pump & ditch those electrons!
• #6 by oldskool rich on 05 Dec, 2009 07:31
• realy? tell me more, i wana go MTDI, what must i do? the pumps the other way round thow, i assumed everything wud be backwards
  
  teach me teach me 
• #7 by blackdogvan on 05 Dec, 2009 10:49
• 5CylAudiTDI
  
  When my friend did a 5 cyl turbo conversion on a eurovan natural, swapping the LDA bits on was a pretty easy job. Its still just a ve pump after all!
• #8 by gigaz2 on 05 Dec, 2009 11:34
• there are IDI pumps for those engines (2l audi100, 2.4l t4...), you can make a hybrid just like on the 1.9mtdi, rotation isn't something you need to worry about if all the parts come from the suitable engines.
• #9 by burn_your_money on 05 Dec, 2009 11:57
• Actually an AAZ LDA won't work. Like oldskool rich said, everything will be backwards, or rather on the wrong side. I think Giles needed 3 different pumps to make that mTDI.
• #10 by gigaz2 on 05 Dec, 2009 12:32
• like I said, all coming from VW I5's 
  
  case from a 2.4, head from the eTDI 2.5 (11mm)...  doable, better, already done as proven by the video
• #11 by MJF on 06 Dec, 2009 09:46
• Programming is in ecu. No difference is it AAT or AEL, you´ll need re-map. Even if you go with mech pump, you´ll need bigger injectors to get more power. Maybe 170hp with remap only.
• #12 by oldskool rich on 06 Dec, 2009 22:10
• wow, thats amazing, never seen an engine tested like that before
  
  where can i get the biggest injectors for the cheapest?
  that pump looked like it just had an LDA off an AAZ on it? may it is just a swap?
  if not what engine code do i need the pump off? TBH I wont even have to take the pump off, i can just swap heads cant i?
  
  are we saying no to the supercharger then and yes to a gt2556v?
  
  again no idea where to get any of this stuff from
• #13 by gigaz2 on 07 Dec, 2009 05:37
• it was a hybrid pump, put together by Giles, aparently made from three different donor pumps and a lot of custom mods.. not off the shelf stuff
• #14 by MJF on 07 Dec, 2009 06:04
• http://www.dieselkontor.de/product_info.php?cPath=58_195&products_id=3101
  
  I would try HX30, He221, GT32 or similar wastegate turbo. AAT/AEL/Volvo ECU can not be programmer easily to control VNT.