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Prawn and BigAls A3 Track Car

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

  1. jojo
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    jojo S3 Drift King! Staff Member Moderator

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    [Mar 18, 2014]
    Bloody Sunday drivers getting in the way again! :ninja:
    BYD, bigal 1 and voorhees like this.
  2. Prawn
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    Prawn My other car is a MINI!!!!

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    [Mar 18, 2014]
    great picture though, BigAl driving in that one :)
  3. Sam_
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    Sam_ Down under

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    [Mar 19, 2014]
  4. Prawn
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    Prawn My other car is a MINI!!!!

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    [Mar 19, 2014]

    Sorry mate, I missed this one somehow!

    We've done a few thousand road miles on the 03G's, and I've got to be honest, they're really impressive. Wear hasn't been an issue so far, ours are still almost like new, and on a SOAKING wet Spa they held up really well too!

    If you can afford to wear them out on the road over time, then go for it! it's not like you guys get that much rain anyway!
  5. Sam_
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    Sam_ Down under

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    [Mar 19, 2014]
    Cool, I'll chuck them on then. Cheers! I got them cheap so might as well get some use out of them.

    Nice shots of the car. Be good to see the vids when they're done.
  6. bigal 1
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    bigal 1 Active Member

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    [Mar 19, 2014]
    What a day, what a good bunch of guys, what a good organization at Bedford, ( nice people as well, very professional) what a good track and the car wasn't bad either. It appears we have sorted the brakes out at last, they were excellent, At the end of a session I tested the temperature of the discs with the ali bells some 200c less than the rotors. I think that is impressive. When these pads and rotors wear out the replacement 32mm wide rotors and uprated fluid with extra cooling ducts should be the. You Know What. All in all a cracking day. We will definitely be going back.
    voorhees and Prawn like this.
  7. Prawn
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    Prawn My other car is a MINI!!!!

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    [Mar 19, 2014]
  8. Prawn
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    Prawn My other car is a MINI!!!!

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    [Mar 20, 2014]
    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]
    Timmy96 and RobinJI like this.
  9. bigal 1
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    bigal 1 Active Member

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    [Mar 20, 2014]
    That last photo, it says it all. This was the only corner, with wee prawn at the wheel, when initially I was apprehensive. If you read my face, it says, how in the name of hell can a A3 corner at that speed.
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  10. Prawn
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    Prawn My other car is a MINI!!!!

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    [Mar 20, 2014]
    Haha, there was one corner, where we were REALLY flat and using LOTS of kerb on exit, where you kept suggesting I backed off a tad :laugh:

    :racer: wasn't going to happen :racer:
  11. bigal 1
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    bigal 1 Active Member

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    [Mar 20, 2014]
    I DO remember, but eventually got used the it. I'm OLD.
  12. bigal 1
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    bigal 1 Active Member

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    [Mar 20, 2014]
    Bearing in mind, I drive a 1.9 TDI Avant, (which has less acceleration than my Kona, ( King Kikapu, (Easton Ultralite)), it takes a spot of adjusting to the track car and its performance. (Excuses, I know) But it does take a few laps to settle down. (More excuses) . However, now that the beast is on song, we hope to do quite a few track days this year. So hopefully, more honing will be done.:thrashi:
    Lavis89 and Prawn like this.
  13. Prawn
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    Prawn My other car is a MINI!!!!

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    [Mar 20, 2014]
    Last edited by a moderator: Aug 15, 2014
    jojo, Timmy96 and Alex C like this.
  14. Vorshprungdork
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    Vorshprungdork Active Member

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    [Mar 20, 2014]
    Good stuff, no point having a car if you're afraid to drive it, even if it's a Porsche :)
  15. jojo
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    jojo S3 Drift King! Staff Member Moderator

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    [Mar 21, 2014]
    Last edited by a moderator: Aug 15, 2014
  16. jojo
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    jojo S3 Drift King! Staff Member Moderator

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    [Mar 21, 2014]
    You be surprised how drivers in expensive metal just like to bomb it down the straights at full pelt, but cruise around in the corners.
  17. Prawn
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    Prawn My other car is a MINI!!!!

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    [Mar 21, 2014]

    Sure is mate :) Been in there well over a year!
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  18. Prawn
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    Prawn My other car is a MINI!!!!

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    [Mar 21, 2014]
    I'd like to spend more time on the suspension really, it's SO stable now it's crazy, but it does understeer a touch in the mid and low speed corners, but gives LOADS of confidence to pile into the higher speed corners without fear. the earlier GT track had a few more really fast corners that wern't in the south/east/north track in the vid above.



    I'm somewhere between stiffening the rear ARB, or softening the front, or perhaps both, and playing with damping to make it a bit more lively.



    It used to be a nightmare sliding around everywhere, but now it's just so stable, i could afford to live dangerously and make it rotate a bit more on request!
  19. bigal 1
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    bigal 1 Active Member

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    [Mar 21, 2014]
    There is a bunch of lights in the right hand corner. I thought they were for external air temps. Blue for cold, red for hot. :sos: Thanks for the pointer, they could come in handy. :think:
    jojo likes this.
  20. badger5
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    badger5 www.badger5.co.uk Site Sponsor

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    [Mar 21, 2014]
    how were temps on track dude?
    water/egt
  21. Prawn
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    Prawn My other car is a MINI!!!!

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    [Mar 21, 2014]
    Water peaked at 91 degrees, compared to over 110 at ADI, so I think the rad is doing it's job very well.

    EGT peaked at 861 degrees. Not TOO bad, but that is on low boost. Couldn't use high boost as it's too lean to risk. From road testing and track previously, Track EGT's have been to 904 at the highest back at ADI. I'd be happy to have it tamed back to a more sensible / useable ~360bhp to keep EGT's in check when the map is next looked at.

    The brakes were absolutely fantastic :) The floating setup with your bells has really done wonders. very impressed there!
    Vex182 likes this.
  22. badger5
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    badger5 www.badger5.co.uk Site Sponsor

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    [Mar 21, 2014]
    300bhp on actuator level?
  23. Prawn
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    Prawn My other car is a MINI!!!!

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    [Mar 22, 2014]
    That sort of region Bill, this is the plot from before it was mapped:

    [​IMG]

    It's been on various dynos and always seems to make 290-300 on actuator, which is 1 bar.
  24. Prawn
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    Prawn My other car is a MINI!!!!

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    [Mar 23, 2014]
    Some random pictures.

    I went on a high speed train yesterday, first time. clocked 143mph. Very bizzare on a rattler:

    [​IMG]

    And whilst walking around China-Town on Bobs stag do at about 1am, we stumbled across these beasts:

    [​IMG]

    This was awesome:

    [​IMG]

    Crazy R33 GTR with underbonnet lighting :S

    [​IMG]

    Anyway, enough of that.

    it's been at least a month since Dad last bought some tyres. Thankfully, we bought these a while back, and I just picked them up from Bob this weekend:

    [​IMG]

    BTCC 235/610 medium compound slicks :)

    Literally like new, these have had SO little use:

    [​IMG]

    Took the car out for a spin, all going well:

    [​IMG]

    [​IMG]

    It seems that Bedford took it's toll on the drilled AP rotors, which were mint when they went on, but are now showing some pretty meaty cracks:

    [​IMG]

    It looks alarming, but I'm told it's not actually an issue until these propogate further and start to join up, as the main structure of the disc is within the centre fins. So still a trackday or two left in them yet!
  25. Prawn
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    Prawn My other car is a MINI!!!!

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    [Mar 23, 2014]
    Some random pictures.

    I went on a high speed train yesterday, first time. clocked 143mph. Very bizzare on a rattler:

    [​IMG]

    And whilst walking around China-Town on Bobs stag do at about 1am, we stumbled across these beasts:

    [​IMG]

    This was awesome:

    [​IMG]

    Crazy R33 GTR with underbonnet lighting :S

    [​IMG]

    Anyway, enough of that.

    it's been at least a month since Dad last bought some tyres. Thankfully, we bought these a while back, and I just picked them up from Bob this weekend:

    [​IMG]

    BTCC 235/610 medium compound slicks :)

    Literally like new, these have had SO little use:

    [​IMG]

    Took the car out for a spin, all going well:

    [​IMG]

    [​IMG]

    It seems that Bedford took it's toll on the drilled AP rotors, which were mint when they went on, but are now showing some pretty meaty cracks:

    [​IMG]

    It looks alarming, but I'm told it's not actually an issue until these propogate further and start to join up, as the main structure of the disc is within the centre fins. So still a trackday or two left in them yet!
    <tuffty/> likes this.
  26. daz-20vt
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    daz-20vt Well-Known Member

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    [Mar 23, 2014]
    Will you be opting for drilled next time do you think?
    Do you find that the drilled add anything to the set up?
    Just out of interest.
  27. bigal 1
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    bigal 1 Active Member

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    [Mar 23, 2014]
    Hi Daz, In my opinion multi grooved is better. Drilled to have a tenancy to crack under extreme conditions ,as shown. We are very heavy on the brakes, more so than most. Multi grooved also clean the pads or so the theory goes.
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  28. bigal 1
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    bigal 1 Active Member

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    [Mar 23, 2014]
    Some people argue that drilled, dissipates the heat build up and this may be so, but with Bills ali bells, vented rotors and air ducts I would not choose drilled over grooved.
  29. daz-20vt
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    daz-20vt Well-Known Member

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    [Mar 23, 2014]
    Ahh ok. Was just wondering seeing so many mixed views on these. Would make sense for you guys to avoid. You both done plenty of track days and lots of experience which i guess is why your so hard on the brakes?
    be good to see how they hold up grooved only.
  30. bigal 1
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    bigal 1 Active Member

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    [Mar 23, 2014]
    If you look at that last vid, just after we passed the Carrera RS, you will see a board stating 150m to the chicane, then 100m and then 50m, we were braking ,down from 147mph (143mph for me) at the 50m board and into the chicane at 105mph ish. That gives an idea of how good the brakes are. Bill's floating bells have really come home for us on this one. Also, which is obvious, more track time/practice and light fuel loads compared to a full tank makes a big difference. Plus our speedo over reads by about 5/6mph at higher speeds.
    Last edited: Mar 24, 2014
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  31. bigal 1
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    bigal 1 Active Member

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    [Mar 24, 2014]
    Like all sports, there are so many variables. We have had people say that certain braking products are the best available and they have never experienced fade or degradation. We have tried several of these and ALL have failed under the arduous conditions we put them through. All of these products have not shown any adverse results under hard road use. Hard track use is something else. We now have The best setup to date.
  32. Vorshprungdork
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    Vorshprungdork Active Member

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    [Mar 24, 2014]
    Is it anything to do with the two of you driving, i.e. car more on track than off and cooling down?? Just a thought!
  33. bigal 1
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    bigal 1 Active Member

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    [Mar 24, 2014]
    I don't quite understand. Are you suggesting that the more the brakes are used, the better they become.
  34. Alex C
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    Alex C Well-Known Member

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    [Mar 24, 2014]
    think he's proposing that as the car stays out on the track for a longer period of time when compared to if it were just the one of you on a track day then the disks suffer from more abuse and suffer from adverse effects than they might otherwise do?
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  35. Prawn
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    Prawn My other car is a MINI!!!!

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    [Mar 24, 2014]
    that's how I understood the qeustion Alex.

    it could well be a point, definitely. I can't imagine too many race cars are asked to cover 240 miles in a day, and although we do do cooling laps after each session, it certainly doesn't sit in the pits cooling off for long. brakes and tyres are still up to temp as soon as we head out!

    Speaking of which, Jonny has edited and uploaded the first of his clips from Bedford, somewhere mid afternoon Im guessing (You can hear me comment we'd done 168miles at the point we went out)

    Jason (Vorhees) as passenger, low boost for the whole session, lovely dry conditions :)

    One out lap, then about 2 and a half flying laps:

    [video]http://m.youtube.com/watch?v=Y-6js5KoqVc[/video]

    http://m.youtube.com/watch?v=Y-6js5KoqVc
  36. bigal 1
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    bigal 1 Active Member

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    [Mar 24, 2014]
    We do a lot of track time, but the problems we have had with other setups is they JUST fail to work and we have to come off. ADI last year was an example. The brakes faded and vibrated uncontrollably after about two laps. This current setup was used very hard and no problems whatsoever, apart from the rotors which we knew were past their suggested lifespan. We used these rotors to test if the setup worked. We did not want to spend some £340/50 on new rotors if they did not work. So now it's uprated rotors and hopefully an even more foolproof and reliable system.:racer:
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  37. kwistof
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    kwistof South East Events Moderator Regional Rep

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    [Mar 24, 2014]
    There's a bunch of race cars that are often found in Le Mans bombing about Circuit de la Sarthe around mid June :p

    You may want to pop over purely for the grid walk to see what they use and get some ideas :)

    I will be there this year and I'll be poking about all the aero/braking parts for some inspiration (dreaming) on what to do to my car :laugh:
  38. Lavis89
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    Lavis89 Active Member

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    [Mar 24, 2014]
    ^ Is that the fia world enduro race? I'm going to the Silverstone leg of it in April
  39. kwistof
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    kwistof South East Events Moderator Regional Rep

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    [Mar 24, 2014]
    Yeah it is dude - 6 races across the world...24 Le Mans being part of it.

    I wonder if they'd let a certain black A3 racecar into the LM GTE am class as a guest car at Silverstone :)

    Judging by the videos I've seen so far you need some more stiff competition out on track Nick! lol
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  40. Prawn
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    Prawn My other car is a MINI!!!!

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    [Mar 24, 2014]
    haha, Cheers Kris (assumption on spelling based on username!)

    I have competition for sure, I had some great fun laps with Nige in his mk2 ABF turbo, and a few of the m3 bunch on Northloop are seriously fast too!

    we'll be going back to Bedford with Northloop shortly, and hopefully I'll have full boost available by then :)

    Timing isn't allowed at all on trackdays, but from looking at the video time stamps it looks like the two flying laps were both around 2:47 region with traffic on both. a friend on northloop was doing 2:46 in his very nicely prepped track m3 on the day Westy was there back in 2012, so that's a good indication.
    kwistof likes this.

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