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Bobby Singh A4 3.0 TDI build thread

bobby singh Jul 14, 2015

  1. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User TDi Audi A4 quattro

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    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.
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  3. Phil.MC

    Phil.MC Active Member Sportback Team Votex Team V6 TDi A7 Owner Group Audi A4

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    @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 TDi Audi A4 quattro

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    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
     
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  5. Phil.MC

    Phil.MC Active Member Sportback Team Votex Team V6 TDi A7 Owner Group Audi A4

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    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 TDi Audi A4 quattro

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    I wouldn't worry this thread has become a tuning guide for tuning companies haha
     
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  7. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User TDi Audi A4 quattro

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    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
     
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  8. desertstorm

    desertstorm Moderator Staff Member Moderator VCDS Map User TDi Audi A4 Audi Avant Owner Group quattro

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    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 TDi Audi A4 quattro

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    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 Member

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    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 TDi Audi A4 Audi Avant Owner Group quattro

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    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 .
     
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  13. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User TDi Audi A4 quattro

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    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 New Member

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  15. BennyG_UK

    BennyG_UK Top Gear Team Glacier Supercharged VCDS Map User Audi S4 Audi Avant Owner Group quattro

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    Thought I recognised the name! Remember you from the uk-mkivs days. Good to see some old school members still about :)
     
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  16. mk4gtiturbo

    mk4gtiturbo Member Supercharged Team V6 Audi S4 Audi Avant Owner Group quattro S tronic

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    I am also ex-uk-mkivs.net member, not sure if you can tell that from my username!!!
     
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  17. BennyG_UK

    BennyG_UK Top Gear Team Glacier Supercharged VCDS Map User Audi S4 Audi Avant Owner Group quattro

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    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

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    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 TDi Audi A4 quattro

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

    Cheers
     
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  20. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User TDi Audi A4 quattro

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    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
     
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  21. seanr

    seanr A6 Exclusive

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    will do Bobby
     
  22. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User TDi Audi A4 quattro

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    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
     
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  23. Banger 115

    Banger 115 New Member

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    You need some of theses Bobby upload_2019-7-4_11-43-28.jpeg
     
  24. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User TDi Audi A4 quattro

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    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 New Member

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    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 TDi Audi A4 quattro

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    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
     
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  27. Maxcherry2

    Maxcherry2 New Member

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    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.
     
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  28. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User TDi Audi A4 quattro

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    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 New Member

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    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 TDi Audi A4 quattro

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    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.
     
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