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Prawn and BigAls A3 Track Car

Prawn Dec 29, 2010

  1. <tuffty/>

    <tuffty/> Badger 5 Edition...Its all about the flow... Staff Member Moderator

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    RE the ABS issue... the reason it complains is due to lack of comms... so... why not plug an abs unit in... or a butchered one that is at least electrically operational...

    I am also sure I have read somewhere of folk clever enough to be able to read and reflash instrument code to enable/disable stuff but for the life of me cannot remember where

    <tuffty/>
     
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  3. Prawn

    Prawn My other car is a MINI!!!!

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    What a great idea PT. I'll look and see if the controller can be split down from the main body and left plugged in and hidden. But it wouldn't be the end of the world to leave the unit in place to avoid the evil multiple beeps. Good thinking :)

    in other news, I cleaned the BMW today:

    [​IMG]

    [​IMG]

    And in 6 hours time I'm leaving for the Nurburgring :racer:

    Have a nice weekend folks!
     
    Westy and scotty_24 like this.
  4. Erikn89nl

    Erikn89nl Registered User

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    What sad news...

    Happy news! :D enjoy!
     
  5. Prawn

    Prawn My other car is a MINI!!!!

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    Well, Germany was awesome. Even if we didn't get on track due to poor weather!

    Dave had a good time, all 3 of him!

    [​IMG]

    In A3 news, I'm still waiting on the valve retainers and collects from the states, which is getting frustrating.

    I have decided that I'm going to take this opportunity to do an ABS delete though whilst the engine is out, and today I've ordered a Tilton rear bias valve and all the pipework I need to replumb the whole system :racer:
     
  6. SHUk

    SHUk Once Bitten Forever Smitten =]

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    Do you know where I can pick these up from please?

    Thanks
     
  7. badger5

    badger5 www.badger5.co.uk Site Sponsor

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    Prawn likes this.
  8. StaceyS3

    StaceyS3 Registered User

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    Sorry to drop in your thread prawn but kind of relevant.

    These are now available which allow caster and camber adjustment unlike IDF.

    [​IMG]
     
    tomjol, snowy, taylor855 and 2 others like this.
  9. Prawn

    Prawn My other car is a MINI!!!!

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    I like those very much Stacey!

    Seeing as it's relavent, what's the retail on a set of those arms?

    I Much prefer the 2 part design allowing independant caster adjustment.
     
    StaceyS3 likes this.
  10. badger5

    badger5 www.badger5.co.uk Site Sponsor

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    price of those babies stacey?
     
  11. StaceyS3

    StaceyS3 Registered User

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    Prawn likes this.
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  13. Prawn

    Prawn My other car is a MINI!!!!

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    So, I've held off posting this for a while, I wanted to wait until things were a little further along before saying anything, and I've still not posted anything on facebook because people are too nosey on there, but if you're in here you've clicked on my thread and decided to read this, so despite it being more public I oddly prefer it :laugh:

    I am VERY pleased to announce, that Victoria and I are expecting a little boy, to arrive in march 2017 :)


    [​IMG]

    The Team Prawn Racing Driver line up will soon cover 3 generations :racer:
     
  14. Gazwould

    Gazwould Registered User

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    Wonderful , congratulations .
     
    Prawn likes this.
  15. george_seamons

    george_seamons I'm on the naughty step

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    Wow, congrats dude :)
     
    Prawn likes this.
  16. craigt1985

    craigt1985 Registered User

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    Congrats mate! Turbochargedminiprawn.
     
    bigal 1 and Prawn like this.
  17. scotty_24

    scotty_24 Registered User

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    Congratulations mate!

    A3. Game Over ;) ha ha ha
     
    VAG-Slag and Alex C like this.
  18. craigt1985

    craigt1985 Registered User

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    What are the rules about rear/forward facing baby seats in a bucket seats?
     
  19. tcg

    tcg Registered User

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    Congratulations.

    Can't wait to see the mods you put on his pushchair,another thread starting?
     
  20. g60leigh

    g60leigh Registered User

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    Congratulations bud. Very happy for you


    Sent from my iPhone using Tapatalk
     
    Prawn likes this.
  21. Westy

    Westy Registered User

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    Congratulations team Prawn. Best keep hold of that BMW touring mate, you'll need it!
     
    Prawn likes this.
  22. Prawn

    Prawn My other car is a MINI!!!!

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    You mean the one I conveniently bought 9 months before March? :laugh:
     
    VAG-Slag, scotty_24, bigal 1 and 4 others like this.
  23. Erikn89nl

    Erikn89nl Registered User

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    I knew it! ...literally :p congrats again mate :)
     
    Prawn likes this.
  24. nobbybonez

    nobbybonez Registered User

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    /life :D
    congrats fella
     
    scotty_24 and Prawn like this.
  25. Golfyste

    Golfyste Registered User

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    Congrats again dude :)
     
    Prawn likes this.
  26. S3 Hilife

    S3 Hilife It's an addiction Gold Supporter VCDS Map User

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    Congratulations


    Sent from my iPhone using Tapatalk
     
    Prawn likes this.
  27. StaceyS3

    StaceyS3 Registered User

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    Congrats again mate
     
    Prawn likes this.
  28. Jeriho

    Jeriho Insane and i love it

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    Congratulations Prawn.
     
    Prawn likes this.
  29. A19quattro

    A19quattro Registered User

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    Baby prawn, back of the net :friedshrimp:











    OK so it's a shrimp, closest I could get, Congrats mate :sunglasses:
     
    Prawn likes this.
  30. desertstorm

    desertstorm Moderator Staff Member Moderator VCDS Map User

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    Congratulations to you and Victoria. Great news it's in March and not in the middle of the track day season. Well planned.
     
    scotty_24 and Prawn like this.
  31. bigal 1

    bigal 1 Registered User

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    I have a spare 13 bhp Briggs and Stratton from a garden tractor I scrapped. Who knows. ???

    Problem is, it's a pull start.
     
    Prawn and Rainbird like this.
  32. Lavis89

    Lavis89 Well-Known Member Regional Rep

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    Congrats guys!

    [​IMG]
     
    StaceyS3 and Prawn like this.
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  34. HTC

    HTC Registered User

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    Excellent news for the Prawn Racing Team ..... Proper jealous. Me and the missus have been trying for ages for kiddie.

    Wishing you guys all the best!
     
    Prawn likes this.
  35. badger5

    badger5 www.badger5.co.uk Site Sponsor

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    anyway...................

    back to cars
     
    fanta, VAG-Slag and Prawn like this.
  36. Essflee

    Essflee Registered User

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    Congratulations Prawn, boys are cool !! Lol
     
  37. Prawn

    Prawn My other car is a MINI!!!!

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    Back to cars :racer:

    This arrived last week:

    [​IMG]

    Along with this:

    [​IMG]

    A few of these:

    [​IMG]

    3 packs of these:

    [​IMG]

    And also these little bits!

    [​IMG]

    Following several years of chasing a braking issue, I've decided to delete the ABS.

    As standard the cars mechanical brake bias is largely rearward, but the ABS controls brake distribution and the end result is that the fronts do almost ALL of the work, with the rear brakes almost entirely shut off by the electronic bias control.



    Whilst the rear brakes don't need to do a lot, I'm of the belief that mine currently are doing nothing AT ALL, and overloading the front brakes. This is potentially backed up by the fact that front pads last me 2-3 days MAX, and rear pads last 4 years. the weight distribution is 65/35, but the brake distribution is more like 95/5.

    By simply deleting the ABS and replumbing the system, you end up with a 50/50 pressure split to front and rear, as is the mechanical bias from the factory. With no ABS to intervene, you end up with too much rear bias, and the rear locks well before the fronts do.

    Adding the Bias valve will allow my to dial back the rear brakes until I'm at the point where all 4 wheels are doing as much braking as possible, which even if it's only a 10% shift rewards, will make a huge different to the front brakes, which currently struggle.
     
  38. snowy

    snowy Registered User

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    Congrats - enjoy the peace whilst it lasts

    imho you need to ponder why the controller deciding to sending all the pressure forward

    ie weight distro and front/rear spring rates

    Otherwise you might find even a 10% rear shift just destabilises the car/reduces reduces overall braking
     
  39. Prawn

    Prawn My other car is a MINI!!!!

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    Whilst I don't disagree, it's safe to say that I'm operating well beyond the intended use of the system as it came from the factory. So much of how the car was built is different, the braking effort at each wheel, the balance between them, the weight distribution. I think I'm fighting a losing battle trying to retain the system.

    I've argued in favour of the ABS for years, and gone 6 years without deleting it, but through countless brake setups this one issue has remained, and others with similar setups have suffered it also, many of whom have cured it by deleting the ABS and taking control of their own bias.

    It'll definitely take a bit of setting up, to learn what works in different tyres and in different condition, and I'm well aware that my driving style will change also and I could well be slower at first, but it's something I want to try.

    It's also outlawed in many race series anyway, so I'd be forced to remove it sooner or later.

    Whilst the engine is out, now just seemed like the ideal time to try it.
    I'll not be destroying anything that comes out, so it can all be reinstated in future if needs be.

    Time will tell I guess :racer:
     
    snowy, A19quattro and Golfyste like this.
  40. snowy

    snowy Registered User

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    tbh I wasn't defending the ABS, simply thinking about what it may be telling you

    Upgrading the ABS system to motorsport ABS is megabucks
     
    Prawn likes this.
  41. badger5

    badger5 www.badger5.co.uk Site Sponsor

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    The pressure is not decided to go all the way fwd it is mechanically biased that way,
    You are correct re the f/r balance, and I've seen prawnys car dive like a mofo under braking, so seriously under sprung front end. rear brakes not needed the wheels are almost airborne - lol
     
    scotty_24 likes this.
  42. Prawn

    Prawn My other car is a MINI!!!!

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    This is true!

    Whilst spring rates don't ultimately effect the amount of weight transfer, they do most certainly effect the rate of weight transfer, and with mine being SOOOO soft it transfers forwards VERY quickly, and the car dives severely, with the rear wheels quite literally trying to endo! I think this is closely linked with the bias control shifting extremely far forwards.

    Spring rates are on the list for this winter too :)
     
    snowy likes this.
  43. snowy

    snowy Registered User

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    Do you mean Prawn car's ABS doesn't behave normally ?

    The ABS unit anti-bias/balances the front/rear distro as a core function

    Our base software is highly reactive to weight distribution

    Hence one of the several reasons I use close to neutral weight distribution
     

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