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Thread: ST185 Upgrades (turbo + suspension)

  1. #46
    Forum Contributor Domestic Engineer
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    Default Re: ST185 Upgrades (turbo + suspension)

    If you can't find a CT20B, why not just highflow your current turbo to try and get some more out of it without having to change manifolds etc?

  2. #47
    Junior Member Carport Converter OnAll-FOUR's Avatar
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    Default Re: ST185 Upgrades (turbo + suspension)

    Quote Originally Posted by jazz9 View Post
    Hmm, I would love oversteerish. The CT20b is proving hard to find.

    Glen
    I'm confused how does reducing the tyre size on the front help reduce understeer? less tyre = less grip?
    Ben #400 - My Ride Thread - Now with CT20b -
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  3. #48
    Hopefully soon a 5S-GTE Chief Engine Builder MWP's Avatar
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    Default Re: ST185 Upgrades (turbo + suspension)

    Oversteer on powering out of a corner cant be had... sorry guys.
    The diff setup in GT4's just doesnt allow enough torque split to the rear wheels.
    If the rear of the car is already sliding thats a different story, but under power, you wont get it to break loose without the front doing so first.

    Oversteer on steady state cornering can be done, but do you really want the back of the car sliding out unexpectedly mid way through a corner??

    Mine is pretty damn close to neutral.
    If i steer to sharp normally, itll understeer.
    If i shift weight to the front via trail braking or similar, the back will slide around for me.
    Pretty much perfect for me
    Now all i want to do is increase overall grip at both ends.

    Quote Originally Posted by OnAll-FOUR View Post
    I'm confused how does reducing the tyre size on the front help reduce understeer? less tyre = less grip?
    Yeah, it doesnt.
    If they wheel align was done at the same time, itll be because of that.

    I just hope he isnt driving too far on those smaller tyres.
    Dont want to fry the center diff because of it

  4. #49
    Toyotard Conversion King Cuts's Avatar
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    Default Re: ST185 Upgrades (turbo + suspension)

    A front chassis (ladder) brace like the cusco one help with understeer.
    Get better tyres on the front (same side front and rear, just better quality on the front)
    Stiffen the rear sway bar
    Buy a 205

    Either get a 20b or as has been sugested upgrade to a gt28, you could get an adapter from the stock manifold to the t25 bolt pattern.

    I cant remember exactly whats done to that car, but every bit of weight removal (including shifting to the rear) will help.
    ST205 Group A Rallye GT-Four 307kw atw @23 psi on 98oct, Now on E85.

    1973 TA22

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