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Thread: powersteering arms

  1. #1
    Veteran ae86's Avatar
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    Default powersteering arms


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    a bloke i know thinks that using powersteering arms on a manual rack messes up the scrub radius and bump steer, shed some light on this knowledge?

  • #2
    Veteran slydar's Avatar
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    no. it doesnt. the steering arms are from the same car, and a power steering car has the same rack position. both set ups are "factory" geometry.

    the bump steer characteristics might be slightly altered. scrub radius not at all, ball joint pivot is not moved.

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    The "power steering" arms plus manual rack is the factory combo used on the AE86 GTV.

    (But the GTV rack itself is a different part number, not sure how it's different).

    Either way, scrub radius is not effected.

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    Who told you this? (like background etc)
    Quote Originally Posted by trikzlane View Post
    I love streeting, Lowdown cars and watching the world unwind by every word Marv types.
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    dont you get raped by the police everywhere you go?

  • #5
    Veteran ae86's Avatar
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    i just wanted to prove to a guy i been speaking to, he wants to buy an ae86 for hillclimbing days, but seems to think even though it for the same car since its a smaller knuckle or w.e will cause bump steer problems along with scrub radius probs
    even though i know shitall about geom i knew a few smart cookies lurk these forums and they wouldnt do this mod if it caused these problems someone like jonny rochester is probably one of the people id trust knowledge from easily

  • #6
    Gone
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    id like to know the difference between a GTV rack and a normal rack, ive got both on the floor of my garage now.. look the same from the outside

  • #7
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    quicker ratio as i understand it. rare part, hard to track down in this country.

    seems to be the case though. there are definitely differences in rack ratios.

    ive noticed it when centering the rack for initial set up of the car. you wind it to lock, then wind back the other way, note the turns, and try to get it in the middle. some jap cars have a slightly quicker steering ratio.. less turns lock to lock.

  • #8
    Senior Member jaz_ae86's Avatar
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    Standard: 3.5 turns lock to lock
    GTV 3
    Quaife: 2.5

    GTV is nice and good budget upgrade. Have been running one for a number of years. Not as heavy as Quaife, which are farking heavy when the car isn't rolling.

    The arms on GTV's are the same as power steering. Shorter arm effect's ackerman angles.

  • #9
    Senior Member ToySprinta's Avatar
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    Will noticably improve bump steer if you are running NCRCA's

  • #10
    Veteran ae86's Avatar
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    i run rcas but i got cambertops anyway

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