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Prawn and BigAls A3 Track Car

Discussion in 'A3/S3 Forum (8L Chassis)' started by Prawn, Dec 29, 2010.

  1. Prawn
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    Prawn My other car is a MINI!!!!

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    [Nov 18, 2012]
    I think it's because jesus hates me.....

    Seriously though, I'm a little perplexed myself. Previously, I've been re-using bolts, things have been greasy from oil leaks, etc etc....

    This time though, it was a brand new shaft, new suspension / wishbones compared to previously, new bolts all threadlocked and nordlock washered up, and this time, the joint itself has fallen apart on me.

    There arn't THAT many people around running the combination of lots of power, LSD, AND sticky tyres though. many people have 2 of the 3, but very few people have all the above.

    The people that I do know with the above, have similar issues it would seem :(
  2. superkarl
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    superkarl MAN OF STEEL

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    [Nov 18, 2012]
    do the 6speeds use beefier shafts/joints? could be an option
  3. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [Nov 18, 2012]
    Best thing to do is to share all that power & torque between 4 wheels ;)

    All joking aside though, what gearboxes and driveshafts do all the LCR boys use as theres a few of them running more power then you mate.
  4. superkarl
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    superkarl MAN OF STEEL

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    [Nov 18, 2012]
    they have 6 speeds with man size shaft flanges.

    prawn would love a man sized shaft :lmfao:
    Rainbird likes this.
  5. Oke Phill
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    Oke Phill Member

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    [Nov 18, 2012]
    Prawn,

    Do you ever think you will go down the route of getting a bigger turbo? or would you stick to the ko4 or same size ish?

    Thanks Phill
  6. Sam_
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    Sam_ Down under

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    [Nov 18, 2012]
    Needs Haldex ;)
  7. s3dave
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    s3dave TFSI Hybrid

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    [Nov 18, 2012]
    He will become a man one day.....:tocktock:
  8. 666markyboy
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    666markyboy Well-Known Member

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    [Nov 18, 2012]
    It's torque that kills things rather than high BHP i was wondering do the 1.9 TDi's have the same cv joints ??
  9. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [Nov 19, 2012]
    Good shout.
  10. Prawn
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    Prawn My other car is a MINI!!!!

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    [Nov 19, 2012]
    Pretty sure they're the same. Might be worth checking out though.

    What are S3 inner CV's like? Tri-roller jobs or ball and cage? it might be worth looking into whether s3 CV'a share the same splines. I'm getting a bit bored of blowing driveshafts....
  11. badger5
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    badger5 www.badger5.co.uk Site Sponsor

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    [Nov 19, 2012]
    S3 CV's are'nt tri-lobe

    surprised yours are..

    even badgerwagen has caged cv's and its mk3 golf based car - ie ancient

    check your plunge length on the inner cv.. see if its got any. if not that will kill them. Had that myself. More -ve camber the more "inward" the shaft goes twds the box
  12. Prawn
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    Prawn My other car is a MINI!!!!

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    [Nov 19, 2012]
    Cheers Bill.

    Originally, on the 100mm flanges, it was caged CV's, but I was killing these on a very regular basis, so when I changed the box at the start of this year I 'upgraded' (or so I thought) to the later type 108mm flanges, which are Tri-lobe type.

    These SEEMED to be better, as I didn't kill one all year until now.

    I thought about shaft length, but thought that as I'd gone longer on the bottom (S3 wishbones) and slightly shorter on the top that it should be OK. I guess I'll need a ramp / pit to check if there's any plunge movement, otherwise with the wheels hanging it won't be a true check.

    Shame I can't fit 6 speed shafts and output flanges, but I'm sure I read somewhere the diff unit is wider on the 6 speeds :(
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  13. badger5
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    badger5 www.badger5.co.uk Site Sponsor

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    [Nov 19, 2012]
    if you were killing previous cv's and still doing it on larger/later ones, I would seriously look at the plunge length dude..
  14. Prawn
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    Prawn My other car is a MINI!!!!

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    [Nov 19, 2012]
    Cheers Bill, Will check it out.

    How much 'float' would You be looking for roughly on the shaft?
  15. badger5
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    badger5 www.badger5.co.uk Site Sponsor

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    [Nov 19, 2012]
    what I did to check same on badgerwagen is undo CV hub nut so the shaft could float in and out.
    car on the ground, on its own weight.. so ride height etc is its loaded level... push in the shaft towards the box and see what travel it has before "locking", and judge that against the compression movement as the cars would "lean" over in a bend etc
    difficult to describe a length but its should have ample movement inward before the CV bottoms out.
  16. Prawn
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    Prawn My other car is a MINI!!!!

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    [Nov 19, 2012]
    Will give it a try later on :) Thanks Bill.
  17. vfr800
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    vfr800 Member

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    [Nov 19, 2012]
    Please sir! Doesn't that damage the wheel bearing?
  18. badger5
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    badger5 www.badger5.co.uk Site Sponsor

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    [Nov 19, 2012]
    nope.
    its not being taken out is it, just loosened, and not driven on it

    just loosened so he can check what free play is in the shafts inboard CV.. outer cv should have no play in and out, inner is designed to have plunge also..
  19. ReDBull
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    ReDBull Member

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    [Nov 19, 2012]
    Sorry to hear you've run into more problems again. Have you thought about changing to six seed box? I guess then it'd mean a new diff, gear linkage ect..
    Hope you get it sorted for tomorrow, how long is your car going to be with Niki?
    Thanks for helping out on SCN aswell.
  20. Prawn
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    Prawn My other car is a MINI!!!!

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    [Nov 20, 2012]
    all problems addressed yesterday, 100 miles covered on an extended test run, breakfast is cooked, and I'm almost ready to leave for R-tech.

    Will update later on!

    Wish me luck folks
  21. bigal 1
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    bigal 1 Active Member

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    [Nov 20, 2012]
    luck is wished
  22. Sam_
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    Sam_ Down under

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    [Nov 20, 2012]
    Hope you smash Welly's figures!
  23. StaceyS3
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    StaceyS3 Well-Known Member

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    [Nov 20, 2012]
    Good luck mate think you should be setting a new hybrid record ;)
  24. nightroamer
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    nightroamer Member

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    [Nov 20, 2012]
    Good luck buddy . I think you smash it. Should be an excellent day. :thumbup:
  25. coatesy
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    coatesy poking badgers with spoons

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    [Nov 20, 2012]
    Good luck mate, sure it will all go to plan...

    Iv been talking to niki about the idea of getting some more power.

    Just need to get my new extras put on the car. Like my new dp .... :p
  26. 16Klappe
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    16Klappe Princess Clap.

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    [Nov 20, 2012]
    If you need to use a 4 post drive on ramp then dad says you can use his, otherwise I can ring Nigel if you want. Sure it won't be a problem.

    Have fun today fat boy, I'll ring you at least 5 times.
  27. Jay A3
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    Jay A3 More power

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    [Nov 20, 2012]
    Good luck. Can't wait to see results
  28. s3dave
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    s3dave TFSI Hybrid

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    [Nov 20, 2012]
    Good luck Prawny.... :beerchug:
  29. badger5
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    badger5 www.badger5.co.uk Site Sponsor

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    [Nov 20, 2012]
    may luck be with you mr prawn
  30. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [Nov 20, 2012]
    DO WORK Prawny :thumbsup:
  31. Vex182
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    Vex182 Guess what I drive...

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    [Nov 20, 2012]
    Have fun, if you need anything from Halfords round the corner, let me know as I'm working today.
  32. IH786
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    IH786 Member

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    [Nov 20, 2012]
    Good luck! Niki got a maximum of 352bhp from my Hybrid LCR before mapping it to a safe 330bhp.

    Think the only difference between mine and your setup is I am running BAM pstons and a SEM with 76mm FMIC piping - am very interested to see what you get!

    Oh and on a side note, my driveshaft to gearbox bolts all came loose, nearly carved a hole in my gearbox! Have loctited them in now so hopefully they will stay put....
  33. vfr800
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    vfr800 Member

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    [Nov 20, 2012]
    ok ta. Only asking 'cos when I changed my CV boot the ELSA manua said the world will end or you will damage your wheel bearings if you rest the vehicle on the bearing with out the hub nut done up.

    EDIT: And good luck today with it Prawny!
  34. badger5
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    badger5 www.badger5.co.uk Site Sponsor

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    [Nov 20, 2012]
    promising start over on fb - original map as arrived before tweakage

    [​IMG]
  35. Welly
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    Welly VX220 SC Driver :)

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    [Nov 20, 2012]
    Oddly, it's the same turbo chassis. :)
  36. Welly
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    Welly VX220 SC Driver :)

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    [Nov 20, 2012]
    Looking good - I'd like to see it break 350 ideally - I always wanted o with he hybrid but never managed it
  37. beachbuggy
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    beachbuggy Well-Known Member

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    [Nov 20, 2012]
    A little extra porting though ;-)
  38. badger5
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    badger5 www.badger5.co.uk Site Sponsor

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    [Nov 20, 2012]
    311bhp on my hybrid k03 on lupo from 18psi boost which is hotside restricted but otherwise, clipped RS6 turbine and 2283 same as prawnies is (I think? unless its changed spec dan?)

    wellys had done 340+bhp but too hot for us to believe it was going to be reliable. Turned down to 332bhp way back 2+ years ago. Lest we forget this is'nt new territory here.

    LCR posted above same spec (ie the Badger5 spec hybrid) was 350bhp but also deemed to be unreliable if left at that level and turned down to 330bhp level.... spookily similar numbers dont ya think.

    Be interesting to see what niki gets out of it today.....

    fingers crossed for a happy crustacean
  39. beachbuggy
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    beachbuggy Well-Known Member

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    [Nov 20, 2012]
    Yes Bill it's identical to yours.

    Unfortunately I can't see ground breaking figures being produced ie 360bhp+ at a sustainable level. I'm sure it will be impressive but the k04 got capped like bill said a couple of years back.
  40. Welly
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    Welly VX220 SC Driver :)

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    [Nov 20, 2012]
    That seems like a long time and many many turbos ago! lol

    I think around the 330's is where these things are at the happy balance of not flat out, but making good power.

    Although Prawny will have a large port AGU manifold which should help overall flow.

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