Good body/chassis track prep?

Discussion in 'Track Prep & Tech' started by Lennard, Jul 19, 2013.

  1. Lennard

    Lennard Forum Member

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    Let me know if there's something i'm missing, i'm preparing the car for a circa 190HP KR engine to do hillclimb type events.

    Wide track the front
    20mm rear stub axle spacers from tinydubs
    Front & Rear diffuser - going to make my own, found these useful articles: http://en.wikipedia.org/wiki/Diffuser_(automotive) http://www.youtube.com/watch?v=3DIJMLrGz8Q
    FG roof from LWS design (my shell has a sunroof unfortunately)
    FG wide front and rear arches from http://www.pesch.cz/en/category/vw/vw-golf-ii
    XXR 527 alloys 16x8.25 ET0 (is this fitment too aggressive for handling?), I wanted to go 16 just incase I upgrade the brakes at a later point.
    Polybush the suspension
    Poly window kit

    Which roll bars would you recommend?
    Brake wise: I was just going to upgrade to 280mm g60's at the front for now, what setup works best for the rear? + some good discs/pads of course.

    Of course i'm going to get some much better suspension and a weld in cage too but I was thinking more little tips and tricks you've picked up which make a mk2 a better handling car?
     
    Last edited: Jul 19, 2013
  2. Admin Guest

    Hi firstly I would check the regs if you can run the GRP roof.

    I have found that on sprints and track days 280mm std G60 calipers and good pads are powerful, add 4pots on same size (or small disc - less weight) at later date.

    I Keep wheels 15inch and think hard about your ET. Std ET33 wheels on widetracke means arch work. ET0 will possibly poke out past std arches but be fine in the FG ones. However, you will upset the king pin inclination in a big way!

    I like the rear wheels to have a smaller track and use 10mm spacers as its the front you want to grip.
     
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  3. Lennard

    Lennard Forum Member

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    hmmm well i've been chatting with chris eyre:

    FG roof isnt allowed so that's scrapped
    15x8 ET20 Rota Slipstreams instead of the XXRs

    I'll take your advice and drop the rear stub spacers to 10mm so the front has more track.
     
  4. tshirt2k

    tshirt2k Forum Junkie

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  5. RobT

    RobT Forum Junkie

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    If you intend to compete, you should be careful what you tell Chris, he likes reporting people to the regulators.
     
  6. tshirt2k

    tshirt2k Forum Junkie

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    Are we dragging up **** again?
     
  7. Lennard

    Lennard Forum Member

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    I'm not really interested in your differences, I came here for advice, so I don't make costly mistakes.
    However I suggest in future, if you want to retain credibility, then bring up issues like this in private. It doesn't reflect well on you as a person to air it in public areas.

    ?

    He did recommend 15x7 ET33 team dynamics 1.2 but I wanted something a bit more aggressive.
     
    Last edited: Jul 19, 2013
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  8. RobT

    RobT Forum Junkie

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    We are not. I am.
     
  9. tshirt2k

    tshirt2k Forum Junkie

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    I'm sure the rest of the "we" will be along soon.
     
  10. RobT

    RobT Forum Junkie

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    Thats what has been given. And theres no need for the attitude response.
     
  11. Lennard

    Lennard Forum Member

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    Yes there certainly is, I really don't appreciate you using/trashing my thread for your own petty motives.
     
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  12. RobT

    RobT Forum Junkie

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    Calm down bud. No need to get flustered.
     
  13. Lennard

    Lennard Forum Member

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    Whatever issue you have with Chris, I suggest you just let it go, life is too short for this type of insignificant ****.
     
  14. RobT

    RobT Forum Junkie

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    Thanks for the advice.
     
  15. samfish

    samfish Forum Member

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    Tyres, pressures and set-up will all make the biggest difference really. Lots of that around on other threads.
    A proper diff would be one of the first things I would buy now, and I imagine it is essential on a bumpy/tight hillclimb track?

    I wouldn't bother with aero until the rest of the car is sorted, it will make the smallest of difference on a Mk2 doing hillclimbs and there are plenty of other things to get your teeth into :)
     
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  16. Lennard

    Lennard Forum Member

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    My class allows wet-slicks, do you have any experience with them?
    Who would you recommend to setup a mk2? (I assume you mean suspension geometry?)
    LSD wise, we agreed on a plated type, something like this: http://www.motorsport-tools.com/tra...tial-golf-jetta-passat-scirocco-p-250760.html
     
  17. tshirt2k

    tshirt2k Forum Junkie

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    Why plate over ATB? Aren't they harsh? Or does it not matter on a race car?
     
  18. Lennard

    Lennard Forum Member

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    I don't know, I guess i'll find out the hard way ;)

    Does anyone produce solid engine mounts for the mk2?
     
  19. Admin Guest

    Yes, check eBay out, and I think duff on here used to make them also.
     
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  20. RobT

    RobT Forum Junkie

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    The diff you would choose depends on several factors. If the hollclimb is on loose surface, no question a plate diff is the way to go. However, if it is on asphelt, it depends to a degree on the tightness of the corners. ATB diffs are very good on tight corners on fwd cars if you have good wheel articulation, as they do not push / understeer like plate diffs tend to do. Lots of top uk hillclimb cars use atb-like diffs. If the course is faster with longer corners and you have limited wheel droop, plate diffs can be better. Its not as simple as many people make out, race is better etc.
    And avoid solid mounts. Hard rubber mounts are thecway to go, vibratechnics race items being very good imo and available for mk2 golf.
     
    Last edited: Jul 20, 2013
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