1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  2. Dismiss Notice

Bobby Singh A4 3.0 TDI build thread

bobby singh Jul 14, 2015

  1. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User

    1,009
    788
    113
    If the dpf is working well and you have little back pressure then 3" delete pipe doesn't offer more performance on the 3.0TDI.
    At best a bit more torque and the ability to stay on WOT for longer before egt correction takes place.

    BiTDI work - Yes I've done it and have data but awaiting a power run to confirm figures.
    According to logs should be 400hp or maybe even slightly more (stock car with dpf).
    I did change a sensor as it was close to the limit.

    Thanks
    Bobby
     
    V6_Man likes this.
  2. Avatar

    snack-media
    Advertisement


  3. Phil.MC

    Phil.MC Registered User

    169
    35
    28
    @bobby singh , on the BiTDi is it it worth deleting the cat on the downpipe as well as the dpf's? I've got a Darkside dpf delete pipe on mine, but was thinking the next step would be doubt the downpipe cat too...and another tweak.
     
  4. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User

    1,009
    788
    113
    I wouldn't bother tbh won't make much of a difference, in fact it will be helping with diesel smell.
    If you have vcds (?) I can make mail you a template to make some logs. Maybe there is scope for improvement without hardware changes.

    Cheers
     
    martinivw and Phil.MC like this.
  5. Phil.MC

    Phil.MC Registered User

    169
    35
    28
    Thanks Bobby, you're a star buddy :thumbs up:.

    Must admit that it was to try and prevent fumes in the cabin that I left the cat alone at this stage.

    I don't have vcds, but may be able to borrow it though.

    I'll drop you a PM if you don't mind.
    I've only had the car a couple of weeks, so probably too many questions and not wanting to clog up your excellent thread with it :rockwoot:.
     
    Last edited: Feb 14, 2019
  6. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User

    1,009
    788
    113
    I wouldn't worry this thread has become a tuning guide for tuning companies haha
     
    desertstorm, martinivw, Sherv and 2 others like this.
  7. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User

    1,009
    788
    113
    February 2019

    More information for others that may experience this.
    For a while know I've been getting a vibration under my seat, had the wheels balanced but didn't help.
    In the end I took a look at the prop shaft and could see oscillation marks on the rubber.

    [​IMG]

    I bought a replacement center support bearing


    https://rover.ebay.com/rover/0/0/0?mpre=https://www.ebay.co.uk/ulk/itm/222775149133

    I tried for many hours to split the center joint but gave up. Took it to Prop Shaft services in Heathrow who tried for a few hours and also gave up.

    In the end got a replacement shaft (used), new one is 1.2k.

    Hammer time

    Off course got to find out why this damm thing wouldn't split:

    Cut the prop shaft:

    [​IMG]

    Joint exposed:

    [​IMG]

    CV puller:

    [​IMG]

    Applied plenty force that the bar started to bend:

    [​IMG]

    Out came the angle grinder:

    [​IMG]

    [​IMG]

    As you can see no tapering on the spline so they really want you to spend the 1.2k


    Cheers
    Bobby
     
  8. desertstorm

    desertstorm Moderator Staff Member Moderator VCDS Map User

    7,419
    3,713
    113
    1.2k for a propshaft ??, wow. Not something that probably fails too often but not many get to see the torque you put into the drive system. Has a ridge formed on the splines that's stopping it coming apart?. Seems strange that you can buy the centre bearing but then can't split the prop.
     
  9. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User

    1,009
    788
    113
    Its the same bearing used on the b7 which can be taken apart.
    Audi themselves do not list a support bearing, only the whole shaft.
     
  10. youngy93

    youngy93 Registered User

    136
    24
    18
    Hello Bobby,
    I've just fitted a darkside downpipe to my 3.0tdi,
    I now have the fault code p2564 control position circuit low, any ideas on what could be the cause?
    Cheers
    Dan
     
  11. desertstorm

    desertstorm Moderator Staff Member Moderator VCDS Map User

    7,419
    3,713
    113
    Check the connector on the vnt actuator on the turbo. Make sure the actuator is moving correctly . If you get somebody to turn the ignition on and watch the VNT actuator you should see it cycle .
     
  12. Avatar

    snack-media
    Advertisement


  13. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User

    1,009
    788
    113
    The only thing I would add to Karls comment is remove the rod and check if the vanes are free - if so then time for a replacement actuator I would say.
    I can supply these if you get stuck.
     
  14. martyuiop

    martyuiop Registered User

    1
    0
    1
  15. BennyG_UK

    BennyG_UK Top Gear VCDS Map User

    423
    69
    28
    Thought I recognised the name! Remember you from the uk-mkivs days. Good to see some old school members still about :)
     
    bobby singh likes this.
  16. mk4gtiturbo

    mk4gtiturbo Registered User

    116
    39
    28
    I am also ex-uk-mkivs.net member, not sure if you can tell that from my username!!!
     
    bobby singh likes this.
  17. BennyG_UK

    BennyG_UK Top Gear VCDS Map User

    423
    69
    28
    No a clue what your on about haha!

    I think I was one of the very few that did a climatronic retrofit, and also put an RNS510 into my old bora lol.


    Sent from my iPhone using Tapatalk
     
    bobby singh likes this.
  18. seanr

    seanr A6 Exclusive

    25
    21
    3
    Hi All,
    my ride is the Bi TDI the Bad Boy Mr Singh worked on..
    I'm sorry that it's taken me so long to pipe up but there's been some crazy things going on which has meant that the car has had to take a back seat..
    what can i tell you about the performance, its truly awesome. the mid range is explosive and the car no longer has that Audi lull in mid drive, it's responsive and to be fair just keeps climbing all the time.
    Once properly warmed up, the turbo lag is almost non existent and the pick up is lethal from low down.
    In sports mode, well thats another story all together, the engine note changes and the car leeps into action with a sweet engine sound and a higher reving engine that has a very short reaction time and is noticeably differnet that driving in normal mode.
    I'm still to get the car onto a proper dyno but once i do i will share the results, as it stands now, what i have is a weapon that pulls like a horse is sensibnle to drive around town but is an excitable beast when my foot hits the throttle.. i would highly advise any other bitdi drivers to talk to Bobby as this is an ultimate transformation and stoppoed me from moving across to an S6 for the forseeable..
    Next stage will be a Wagner Intercooler and maybe a switch of suspension from my coilover set up.. 20171126_161621.jpg
     
  19. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User

    1,009
    788
    113
    Hello old timers :)
    I logged on to uk-mkivs after 2 years just last week.
    Still prefer forums than Facebook etc

    Cheers
     
    martinivw and Meemo like this.
  20. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User

    1,009
    788
    113
    Hey Sean - bro hope you are well?

    Thanks for the feedback - lets me know when you need the wagner (I’ll sort it out :) )

    I do like the BiTDI’s for everyday driving they are really nice.

    Keep in touch
     
    martinivw likes this.
  21. seanr

    seanr A6 Exclusive

    25
    21
    3
    will do Bobby
     
  22. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User

    1,009
    788
    113
    June 2019

    Haven't had much of a chance to work on my own car recently.
    Changed the front and rear pads and discs.
    Decided on EBC yellow stuff front and rear pads - seems to working very well.
    Front disc managed to source some EBC and rear's from ATE.

    [​IMG]

    [​IMG]

    [​IMG]

    Air box mod done - OEM+ look :)

    [​IMG]

    (Before everyone starts drilling their air boxes take some pressure measurements as 99% of the owns won't need this)

    I'm also working on something special in the background ;)
    More details to follow in the next couple of months (I hope)

    Cheers
    Bobby
     
    V6_Man, Banger 115, tech838 and 3 others like this.
  23. Banger 115

    Banger 115 Registered User

    16
    3
    3
    You need some of theses Bobby upload_2019-7-4_11-43-28.jpeg
     
    martinivw likes this.
  24. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User

    1,009
    788
    113
    Paul they do look very nice mate - loving the axle stand :)
    My set up is very heavy but they work very well - a few 0 - 140 - 0 - 140 tests and they held up OK
    When we putting on a decent hybrid?
     
  25. Banger 115

    Banger 115 Registered User

    16
    3
    3
    the old girl was fully suspended on a sloping drive when the new brakes went on Bobby, was safe enough lol.
    When yr find me a decent Hybrid let me no lol. Good work on P's car
     
  26. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User

    1,009
    788
    113
    July 2019

    Been four years since the last car detail - special thanks to my cousin @teamspb for all his effort:

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    For a car with over 150k on the clock he done a great job.

    Cheers
    Bobby
     
  27. Maxcherry2

    Maxcherry2 Registered User

    3
    1
    3
    I thought I did a good job on mine, 2008 A5 Paint was hard as nails. Would be interesting to know what pad/compound was used?

    Not trying to flip to a detail thread but man that looks good.
     
    bobby singh likes this.
  28. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User

    1,009
    788
    113
    We used Menzerna polishes to get the car back to where it should be or as close as and then wiped it all down with Gtechniq panel wipe, finally followed by a coat of CarPro CQuartz UK and then left to dry for 12 hours.
     
  29. Audibot

    Audibot Registered User

    3
    1
    3
    Bobby, any updates?

    Also, I have, perhaps, a stupid question, but one I have not gotten a specific answer for. I've got a 3.0 TDI (CPNB in USA)--where is a good location for a boost tap?

    I do not see the same type of plug that begs for one as I have seen in the thread. I have a gauge that pulls boost from the OBD port, would prefer an actual manifold reading.
     
  30. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User

    1,009
    788
    113
    No real updates on the car - approaching 160k now, I have plans for it but zero time to do anything on my own car.
    Just been busy with customers cars and construction work.

    I think you may have the later engine with plastic in let manifold - I guess you could tap a fitting in something like 1/8 npt.
     
    martinivw, Horia and V6_Man like this.
  31. martinivw

    martinivw :)

    494
    33
    28
    Fantastic thread @bobby singh , just read this from start to finish over the last few days, I actually bought my first tdi (arl) many years ago after seeing your old car on ukmkiv forum. ill drop you an email regarding my cdud mapping :)
     
    bobby singh likes this.
  32. JJS3.0b8

    JJS3.0b8 Registered User

    1
    2
    3
    @bobby singh I should be sleeping! Instead I'm reading your build thread!
    Owned my car less than 24hrs and already itching to start doing bits after starting to read this!
     
    Gazwould and V6_Man like this.
  33. Avatar

    snack-media
    Advertisement


  34. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User

    1,009
    788
    113
    January 2020

    Been a while since I've done much with the car.
    Some maybe aware but I bought a used engine last year with ojective to rebuild it. As I mentioned earlier in this thread the PCP are extermely high and main task I wanted to address is compression ratio. With such high pressures the heads have started to lift when using the power for prolong periods causing coolant issues. The car has 160k on it and still being driven and still performs well.

    Here are some pictures of the replacement engine:

    [​IMG]

    [​IMG]

    Nice to see cross bore drilling:

    [​IMG]

    Heads cleaned & flattened

    [​IMG]

    Valves reseated

    [​IMG]

    12.9 head bolts sourced and modified to suit the Audi V6 engines

    [​IMG]

    Piston work

    [​IMG]

    [​IMG]

    [​IMG]

    CAD drawings are complete with CNC profile set.
    If all goes to plan lowered compression ratio will add scope for more power while remaining within PCP.

    [​IMG]

    [​IMG]

    Bigger CP3 pump

    The new pump will take some doing to mount and line up correctly but should be possible - approx 20% more fuel than the current R90

    [​IMG]

    To be continued...

    Cheers
    Bobby
     
    Misikee, KeirW, Horia and 2 others like this.
  35. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User

    1,009
    788
    113
    March 2020

    Some progress on the replacement engine.

    Pistons all cleaned up:

    [​IMG]

    Machined:

    [​IMG]

    [​IMG]

    [​IMG]

    Piston installed with fresh rings:

    [​IMG]

    New guides, new chains, new gears etc

    [​IMG]

    Heads installed with upgraded head bolts

    [​IMG]

    Next task is to get the larger cp3 mounted for a mock up

    Cheers
    Bobby
     
    V6_Man, Misikee and Horia like this.
  36. andrecc

    andrecc Registered User

    256
    13
    18
    Just had my a7 tuned by Bobby Singh and he transformed my dirty diesel bi tdi to a monster of a beast. Can’t praise him enough his knowledge and understanding of these engines inside out.

    pushing 420bhp/850nm torque from data awaiting a dyno run to confirm.

    everyone that has sat in my car has said WOW THE STOMACH FEELING IS SENSATIONAL. Thanks BSR
     
  37. Lucian189

    Lucian189 Registered User

    8
    3
    3
    I knew that You where doing something to the engine from Mac, but stil this îs an impressive amount of work.
    I would replace the deala in V of.the engine,thoose are prown to fail.
     
    bobby singh likes this.
  38. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User

    1,009
    788
    113
    Thanks for the feedback

    Hi - what do you mean by deala?
    Cheers
     
  39. Lucian189

    Lucian189 Registered User

    8
    3
    3
    Sorry .
    All the gaskets in the V .
    Pfone îs not set to English and it's autocorecting to what it's thinks.
     
  40. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User

    1,009
    788
    113
    Ah yes all new Orings from Audi are being replaced. All new front INA pulleys etc etc
    In other news the pump fits after some grinding and bending :)
    Making new lines for it soon
     
    Horia likes this.
  41. diffas

    diffas Registered User

    161
    26
    28
    Hi Bobby, wonder If you know whats the difference between nozzles of 1st gen 3.0tdi (bmk, bkn etc) and second gen like CCWA? Is there any difference in spray angle for example etc? Tried to read your thread thru but didnt find if you changed injectors for your 500hp engine setup?
     
  42. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User

    1,009
    788
    113
    Hi the early v6's run 1600bar injection system plus the injectors were a common failure. CCWA injectors are better and decent size and can make around 420hp.





    I'm using custom OEM injectors but for the next stage I've gone complete custom - nozzle, injector body mods etc

    Cheers
    Bobby
     
    Horia and V6_Man like this.
  43. diffas

    diffas Registered User

    161
    26
    28
    Yeah I have been running CCWA injectors on my BKN for two years now. Just wondering if they have any spray angle/pattern. Was really pain in the *** to make them work
     

Share This Page

Do Not Sell My Personal Information