Golf II GTD with 1.9 AAZ engine --- EVO II - page 12 - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source.

• #165 by RabbitJockey on 30 Jul, 2012 23:09
• That turbo looks to be a bit of a better match.  How different does it drive?  Do you have better low end power?
  What did these turbos come on?  Seems like in the us schwitzer stuff was only available on John Deere tractors in huge sizes.  I guess kkk, schwitzer, and borgwarner are all one company now.  I don't know what all is available in Germany but the Garrett t3 stuff is everywhere here with lots of options, and still efficient enough to be relevant imo, most of them are efficient at higher boost since they all have a decent sized exducer of 60mm.  And on the exhaust side there's tons of combinations of turbine wheels and housings.  And you can even drop down to the t25 exhaust sides that are more efficient.  But that's just my input if you want to play with turbo sizes.  The right t04e might even work since you have a ported head aaz
• #166 by Alleslowbuged on 05 Aug, 2012 17:09
• Hi,
  
  
  today was a realy good day, as i was on a 1/4 race event and could make some good runs, at least for me. I did 6 runs overall and could improve my time with each run.
  Because my electronic boost controller stop working for me from time to time, i build in a secondary manual valve yesterday, which was a good idea, because i needed it
  after the second run.
  
   
  My first rund was with 1,5 bar (~22 psi) and i good not change in fourth gear, so i started with a 16,9 second. As i write before my headgasket has had massive leackage with high boost for a couple of weeks, but i drove the car very carefully since than and now it seems to be captable to seal (what i did not understand), as there was no high pressure after the first run i increase boost pressure to 2,0 bar (30 psi) for all further runs. My second run was a 15,8 s which is very similar to what i make last year on the same track with my BMW. Through the next runs i improve the time by approximate 0,1 seconds per run and ended up with a 15,4 s what is my best time for that track overall. Top speed was ~145 km/h with the Golf, last year with the BMW i achive 152 km/h.
  
  From run 4 to 6 i did not preserve the engine any longer and run very slighty above 2 bar and rev it like hell in the first two gears (~5700-5800 regarding rev counter) and as i write early i could detect any headgasket leackage.
  
  I only was anoyed because i did not bring my slicks with me, because i did not assume the car will run without problems and would not be there with slicks and 17 seconds time. But next weekend there is another drag race (1/8 mile) were i will start, so if the weather is with me i will try the slicks there.
  
  Best Regards
• #167 by Alleslowbuged on 05 Aug, 2012 17:14
• Hi,
  
  here are three video i find on youtub:
  
  first run vs. BMW 123D (204hp), i make a shift error (loose with 16,95 s)
  (from ~1,02 min)
  http://www.youtube.com/watch?v=J3SN3i8-kjE
  
  second run, vs. same BMW 123D (win with 15,8x s)
  (from ~ 7:33 min)
  http://www.youtube.com/watch?v=4o9UVixqHC0
  
  fourth run, against Passat (177 PS) (win with 15,7 s)
  (from 0:00 min)
  http://www.youtube.com/watch?v=Uo_FlEt-gE8
  
  Best Regards
  Alleslowbuged
• #168 by baldone on 12 Aug, 2012 07:45
• Quote from: Alleslowbuged on 07 Dec, 2011 14:54

  Hi,
  
  i have one of these and have had scheduled to use it on my rabbit project, but this was cancelled because of the D-port-shape of the na intake.
  I have not found a pipe -  td-intake arangement, which convinced me really, so i allready have considered to make a simulation with the na intake.
  Problem is, first that i am not sure were i have it and second that i do not remember if that the na intake will make collision with the turbo.
  
  Yesterday i have ordered a new stock engine bearing and a additional PU inlet:
  http://www.clausvonessen.de/pi22/pd49.html
  
  I have also odered a few Ø80x2 alu pipes and a few Ø120x5x500 alu flat sheets to make the tapered intake pipe from (either for td or na intake part).
  
  This is what seems to be best, but is to much for for manufacturing (for me)
  
  
  This is what i end up with:
  
  
  
  
  But as i wrote, if the na intake will fit i will take it.
  
  Best Regards  
  

  
  is this made with solid work?
  Can you send me the file in e-mail?
  
  Thanks a lot!
  
• #169 by Alleslowbuged on 13 Aug, 2012 03:31
• Hi,
  
  @baldone
  i have to look how big the file is, but if it is within my email range, sure i can send you the file.
  
  @all,
  I was on a 1/4 mile drag race last weekends and after one 1,5 bar run, to check how the headgasket answer, i could make serveral 2,0 bar runs without any problems and getting quicker with each run. After six runs i could achive a 15,4 seconds, better time was not possible because the CTN gearbox has not good ratios for 1/4 mile runs. If i could start in second, what is not possibly yet, due to the clutch) it would be a good fit, but otherwise not.
  
  Yesterday i was on a 1/8 mile drag race and did 16 runs without problems, so the "soldered-head--leakage-headgasket-wonder" goes on. I started with slicks in early morning and could achive a 9,4 seconds, what was my best run overall. In the last run my rev counter stops working, but now it working again but sometimes show strange values.
  
  Best Regards
  Alleslowbuged 
• #170 by Alleslowbuged on 13 Aug, 2012 03:50
• @baldone
  
  the file is quite big (>7 mb) but i allready send it to you.
  
  Best Regards
• #171 by baldone on 24 Aug, 2012 11:24
• Quote from: Alleslowbuged on 13 Aug, 2012 03:50

  @baldone
  
  the file is quite big (>7 mb) but i allready send it to you.
  
  Best Regards
  

  
  thank's 
• #172 by MJF on 25 Aug, 2012 03:48
• What headgasket are you using?
• #173 by Alleslowbuged on 25 Aug, 2012 12:46
• Hi,
  
  stock Reinz MLS gasket (three notch).
  
  I have been on serveral quick road trips in last weeks each one to two hours on twisty roads and have very stable temps and no leackage, so it realy seems like the gasket has resealed itself.
  
  Best Regards
• #174 by Alleslowbuged on 05 Apr, 2013 16:06
• Hi,
  
  long time ago that i posted something here and up to last Monday i did not have done anything on the Golf, just driving driving driving. I think my headgasket is still in good shape, but my soldered head is leaking again. If i limit my boost pressure to 1,2 bar (17,5 psi) and only rev to ~5000 rpm it is not an issue at all, i just have to refill 1 ltr. coolant fluid per month. But when i go for full boost of 2,0 bar (30 psi) and rev up to limit, then i spit out a lot of coolant fluid in a short time. It seems, that the crack is to small to led fluid pass, but is big enough to led gas pass through the wall. So when i go for 30 psi boost, this also means that i will a ehaust pressure of ~30 psi, whichs pumps exhaust gas into the coolant system, so that the pressure blow off valve opens.
  
  Anyhow, i did not post here to bore you with my leackage issues. It is much better, i put the BIGGEST TURBO AS POSSIBLE on my AAZ, but one step after the other:
  
  After month without sunlight and sub zero temps, the weather was good last monday i need to do something which should bring some fun, so i decided to swap the turbo on my golf.
  
  So first the Switzer S100 needs to go:
  
  
  
  
  than looking for something different:
  
  
  The left one is a china GT2052V, but there is not have enough space in the engine bay for the actuator can. 
  
  
  
  So i disassemble the exhaust side i look how i could rotate the bearing section "one screw" to make it fit. It would be necessary to drill three addtionally holes in the exhasut casing, but before i could start to do that, i dump down the disassembled turbo and it land on the exhaust blades
  So i think it is not longer useable, anyhow here are some more pics whichs shows the less than optimal built quality of the turbo:
  
  
  
  
  
  
  
  
  
  
  
  here are two pics of the vtg mechanics
  
  
  
  
  
  
  
  
  
  As i write the weather was good i wand to have something new, so i look what else is availabel:
  
  
  
  
  
  
  Its a Schwitzer S2B TwinScroll and it is way to big for a 1.9 TD engine, but i always wand to know how it feels to have a turbo, which is so big that no wastegate is needed and so will cause the lowest possible exhaust pressue. Anyone here wis a bigger Turbo?
  
  I only drive a short round, but it is really a differnt world, i did not have driven a TD, whichs feels equal. First there is the 1.9 NA torque, than there is nothing (should be possible to improve that with a little less LDA preforce), than around 3000 rpm the turbo starts to spool and boost rises up to 0,5 bar (8 psi) and from there boost continious rises with rising boost up to approximate 1,0 bar at redline, all wihtout wastegate action. It is obvious that the car is slower than before, but it is not slow in general, due to the linear gasser power curve it is very difficult to subjectiv estimate the power, but i will go to dyno as soon as possible.
  
  Best Regards
  Alleslowbuged
  
• #175 by Alleslowbuged on 05 Apr, 2013 16:17
• Hi,
  
  i forget the final pictures:
  
  
  
  
  
  
  
  
  
  
  
  Best Regards
  Alleslowbuged 
• #176 by carrizog60 on 05 Apr, 2013 18:15
• only 1 bar at redline?thats big lol
• #177 by Alleslowbuged on 06 Apr, 2013 17:34
• Hi,
  
  i fixed the downpipe issue today and replace the front engine bearing. Afterwards i could do another short test run (did not have had enough time) and i have to revise my last post, the max. boost of 1,0 bar was with slightly wastegate action, i just did not here it. Today i have seen 1,4 - 1,5 bar at redline of third gear. I think i really appreciate the "huge turbo feeling", the rush when the turbo kicks in above 0,5 bar really feels good, the engine feels very free and joyful to rev (for an AAZ).
  
  I am very inquisitive to see a dyno plot from this setup, a friend follow me with his 325 TDS today and during 2. gear and in third gear with boost level below 0,5 bar he could keep up, but then he get's very soon very small in my rear mirrow, so peak power should be not so low.
  
  Best Regards
  Alleslowbuged   
• #178 by RabbitJockey on 07 Apr, 2013 08:10
• http://www.vwdiesel.net/forum/index.php?topic=4792.0;
• #179 by Alleslowbuged on 07 Apr, 2013 18:03
• Hi,
  
  thanks for the link. I have read all the 24 pages and not all of them was very rich in content, but it is a very cool thing in general. I find the quick spool valves some years ago and from time to time i think about it and want to have one, but not in the last couple of month. Today i ended up with ordering one of the valves from sound performance, even if they are way overpriced in my eyes.
  
  So next step is to dismount my wastegate (nor more need with the big turbo) and put in a blocking plate with a hole for my egt sensor, i am feeling like blind without egt reading in the moment. After you getting used to have one, it feels very rude to squeeze an engine after modifing it and do not now what egt will be the result of the mod and than dyno.
  
  Best Regards
  Alleslowbuged