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Thread: BEAVIS' White MX5 Track Car

  1. #1
    New Member beavis's Avatar
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    BEAVIS' White MX5 Track Car

    So about 2 years ago I bought a new car and tinkered around in the garage for a bit, this is what came out:



    SPECS:
    Running gear:
    • Standard ~100,000km Motor, 6 speed gearbox, Torsen 4.1 diff
    • Lightweight flywheel, Mazdaspeed engine mounts, $300 eBay extractors
    • Basic straight through exhaust
    • Standard NB brakes with Hawk Pads
    • El-cheapo CF pod filter enclosure

    Suspension/Steering:
    • 15x9 wheels and 225/45/15 Nitto NT-01
    • Energy Suspension bushes and BC Coilovers
    • Larger front swaybar, Standard NB rear swaybar, adjustable endlinks
    • Depowered NB8B steering rack with quick release hub

    Interior:
    • Sparco race seat, Willans harness
    • most of the NB8B dash/console remains, but the rest of the interior is gone
    • Doors have been gutted of their innards with a basic door trim
    • AC and heater boxes have been removed.
    • 2 inch extension fitted the the gear stick, with ebay spec white gear knob
    • Sensors for water temp, water pressure and oil pressure which are mounted in the dash panel in front of the gear stick

    Exterior:
    • CF/Fibreglass Headlight 'covers' with LED spotlights
    • Bonnet is vacuum infused CF with vents strategically placed
    • boot is infused CF
    • roof is a custom fastback design in fibreglass
    • Bonnet is fixed to the factory hinges, and held down by Aerocatches.
    • Boot uses more traditional bonnet pins and locating bolts.
  2. #2
    New Member beavis's Avatar
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    I have had a few previous track cars, they were competent, but they were a compromise between road car and track car.
    The NA6:

    The NB8A:



    That's why I bought an 01' JDM imported NB with standard VVT motor.
    It was missing a lot of bits such as interior, roof and running gear, brakes, drive shafts, diff or gearbox which i sources elsewhere.




    Off to fit cage:



    Last edited by beavis; 05-01-15 at 11:29 PM.
  3. #3
    Member CookieMonster's Avatar
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    ok this escalated quickly
  4. #4
    New Member beavis's Avatar
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    Video from Calder Park... managed a 1:08.


  5. #5
    New Member beavis's Avatar
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    Wakefield Park, managed a 1:10.1 good enough to be the fastest Victorian on the day.

    Video for you:


  6. #6
    Member tridman's Avatar
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    Pretty serious looking automobile you have there, loving the fastback roof.
  7. #7
    Member Joy's Avatar
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    Great build. Hope to see more updates in the future.
    Top spec V8 whitegood << Finally hit the big milestone
  8. #8
    New Member beavis's Avatar
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    So I had the gearbox out to try fix a clutch slip issue. And while I was at it, removed the diff as that had a small leak.


    The clutch was new when I installed it 12months ago, so I was confident it wasn't the cause of the slip.


    Found a collection of oil around the rear main seal, and some seepage from the weep hole of the trans. So I cleaned it up.


    Removed the old seal and installed a new one. Also re-did the silicone on the rear main seal carrier. Then bolted it all back in....


    I can get a transmission out in about 3hrs, not bad given I am in a shed with the car on stands.
  9. #9
    New Member beavis's Avatar
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    You can hear the clutch slip on up-changes in this video.
    This is from the Australian Super Sprint at Philip Island Grand Prix Circuit.
  10. #10
    New Member beavis's Avatar
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    Also, decided I'd put a flat floor on the car. With rear diffuser and front splitter. Should be good for Philip Island.
    It's not super low, but it is smooth.

    Curve of the rear diffuser while still working on it.


    Flat floor pretty much done.


    Front Splitter.... pretty dodgy but it's sturdy.


    Rear diffuser done, mounted nice and solid.


    I'm clearly hard at work.
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