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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

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    Spray angle is 1:1 (same pistons - mahle cast number is same)
     
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  3. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User

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    May 2020

    Not much to report slow progress however new custom injectors arrived and decided to go with cast manifolds. I've not had any issues with the stainless manifolds as I run low egt's, but I rather not risk the turbo if I push things a little further.

    [​IMG]

    [​IMG]

    [​IMG]

    Part numbers for the manifolds are:

    059253034P
    059253033P
    059131789N

    As you can see they fit the stock 2260 Y collector perfectly

    [​IMG]

    Cheers
    Bobby
     
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  4. The Jargen

    The Jargen Registered User

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    Excellent work Bobby, is it excessive EGTs that usually cause the original manifolds to fail? What else needs to be done before before the engine is ready for the car?
     
  5. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User

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    Yes I believe its excessive EGT's or early poor design.
    Engine is pretty much ready :)
     
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  6. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User

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    June & July 2020

    Well the new engine finally made it in but not without a fight. Engine swaps on these cars is a big job and I wouldn't want to do it again in a hurry.

    Front end off:
    [​IMG]

    [​IMG]

    Old engine finally out:
    [​IMG]

    [​IMG]

    Used this opportunity to repair my engine loom with another 3.0TDI wiring harness

    [​IMG]

    Vanes all cleaned out
    [​IMG]

    Swapping parts over
    [​IMG]

    Nasty boost leak found too (repaired this and provided better support - see below)
    [​IMG]

    All new mounts:
    Passenger side (middle in the picture) mount was worn pretty bad
    [​IMG]

    Starter motor located in the most painful location and this yellow rubber seal can be a struggle to get into place:
    [​IMG]
    So to change the starter one would have to remove the front end off and remove the engine mount.

    New engine finally in:
    [​IMG]

    New heat shield made up to protect the intercooler pipe
    [​IMG]

    Well ran the engine for around 30miles and after rerouting pipework I decided to wash the engine down. Took it for another drive and got oil level sensor fault ummm. Looked after the dip and the oil wasn't right - yep water in the oil.
    Removed the oil and coolant from the engine fitted the level sensor from the old engine - put 7 litres of oil and measured 51mm on the level - added water and noticed the oil level increased opps. At the same time, I noticed the Vee area was getting wet.

    Stripped down the whole vee area and ordered every new gasket and seal for the base plate and decided to use parts from original engine as they had no issues etc:

    [​IMG]

    [​IMG]

    [​IMG]

    Old gasket rusted through

    [​IMG]

    New seals:

    [​IMG]

    New support bracket

    [​IMG]

    [​IMG]

    Touch wood engine appears to fine again.

    [​IMG]

    I have more updates - will post them in the coming days

    Cheers
    Bobby
     
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  7. Sandra

    Sandra Administrator Staff Member Administrator Platinum Supporter Audi Main Dealer

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    Excellent work Bobby, :)
     
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  8. Horia

    Horia Registered User

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    Good luck!!!
     
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  9. IRONy_MAN

    IRONy_MAN IRONy_MAN

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    I was wondering how come I can t see the a4 in the front of your house anymore:)
     
  10. Vappy

    Vappy Registered User

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    That is incredible. To do all of that, in my eyes, is really, really admirable and impressive. I am looking forward to seeing more updates on this!
     
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  11. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User

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    Thanks for the support everyone

    July 2020

    Well with the engine in and running - plenty of time has been spent on getting the duration map calibrated correctly.After which I have been chasing my tail for weeks trying to workout why my rail pressure is no longer stable (bad osolation) and rail pressure low events for example it would dip for 0.5s with injecting 100mg and again after 4.5k.

    Check the feed pressure and it was showing 10 bar plus - light bulb moment :)

    10 bar plus

    Freed up the fuel pressure relief valve and got a stable 6 bar this fixed the osolation issue but still kept getting these low pressure events.

    6 bar

    Changed the HPFP back to the R90 - same issue
    Changed the PCV same issue
    Changed the rail (in case the seat was bad - same issue
    At this point started to think maybe one of the injectors are leaking off too much fuel and causing the dips in Rail Pressure.

    As a last hope I swapped out the metering unit and now rail pressure tracks perfectly - This is at 100ms sample rate.

    In other news as I plan to keep the car I've invested in this kit for car play:

    [​IMG]

    [​IMG]

    Install to follow...

    Cheers
    Bobby
     
    Last edited: Jul 23, 2020
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  13. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User

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    Aug 2020

    Installed the Unique Auto kit and be honest I didn't like it:
    1) MMI2G display is low res so the car play didn't look right
    2) Using Car Play meant in the background you were controlling the Nav and sometime it would be in a mess if you returned back to it
    3) Reverse camera didn't work for me very well wasn't getting CAN siganl when reverse was selected

    So in the end found a guy who did the whole MMI3G Plus upgrade - new 2020 Nav maps, better display, dab radio, 60gb hdd, 2 x sd slots, Bluetooth streaming (all oem):

    [​IMG]

    [​IMG]

    Old MMI2G High:
    [​IMG]

    Next is AMI cable to the glovebox and OEM reverse camera

    Costco's had a really good deal on tyres so went for some Michelin PS4

    [​IMG]

    Armed with new tyres I went for a quick test, seems the wheels still spin at 60mph:



    Current engine power is unknown but seems to going well :)

    Cheers
    Bobby
     
  14. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User

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  15. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User

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    October 2020

    Been working closely with a developer that does cylinder pressure monitoring and using the Beru PSG it seems I've maxed that out at 230bar. Now looking at a pro solution used by OEM's for a sensor that can read more and comes correctly calibrated - more to follow on this...
    In the meantime opened an account with Bilsten and ordered a B16 kit with wifi/bluetooth ride control, for quick access it comes with a button which can be used to toggle between comfort, sport and sport +

    Here are some pictures:

    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]

    Controller mounted behind the glove box

    [​IMG]

    Fronts wired via the inner arch loom

    [​IMG]

    Sports button

    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]

    New top mounts

    [​IMG]

    [​IMG]

    Rears wired

    [​IMG]

    After driving these around I would totally recommend them, in comfort mode the suspension is like a SE model and Sports is harder than stock S line and sport plus is for track, but again you can adjust the presets to how you like it.
    I need to increaase the height as Im not a fan of cars too low but I will tweak the suspension in a week or so once it settles down.


    Cheers
    Bobby
     
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  16. Sandra

    Sandra Administrator Staff Member Administrator Platinum Supporter Audi Main Dealer

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    You have been busy Bobby. Keep up the good work. :)
     
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  17. Gooders

    Gooders Active Member VCDS Map User

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    Looks good


    Sent from my iPhone using Tapatalk
     
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  18. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User

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    Thank Sandra - working from home saves travel time :)

     
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  19. jdp1962

    jdp1962 Grumpy Old Man

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    Amazing work! :)
     
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  20. Sandra

    Sandra Administrator Staff Member Administrator Platinum Supporter Audi Main Dealer

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    Sure does Bobby. Saving you money and gives you lots of time for tea and working on the car. Looking forward to the next update. :)
     
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  21. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User

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    Really happy the way this has turned out - the handling and ride quality is the best I've experienced for a car that's lowered.

    [​IMG]
     
  22. Jacko1

    Jacko1 Registered User

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    Is this motor for sale? : )
     
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  23. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User

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    Pointless selling it now tbh gone too far with it.
     
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  24. bobby singh

    bobby singh BSR Gold Supporter VCDS Map User

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    November 2020

    Not much has changed, but Im getting issues with the hpfp so revert back to the R90 item and started some mods on that (more to follow).
    Rear camera is now working:

    [​IMG]

    First timed run on the new engine and its showing promising results - I don't know of any other 3.0tdi doing the 100 to 200 any quicker with full weight.
    Things to note are this was the only single test I managed
    Gear change into 5th seems to show a dip in acceleration - should be fixable
    Full weight with 60l of diesel in the tank

    [​IMG]


    Cheers
    Bobby
     
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