Best PolyBushes setup for an R3 track only car

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Stripey71
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Best PolyBushes setup for an R3 track only car

Post by Stripey71 » Sun Aug 11, 2019 11:53 am

Recommendations please - full track set up Image


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mrspiller
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Re: Best PolyBushes setup for an R3 track only car

Post by mrspiller » Sun Aug 11, 2019 12:14 pm

I think generally , don’t bother as the standard ones are more than good enough . I’ve eaten through energy suspension ones - which were then replaced with power flex which seem ok but have had two separate ones fail , both replaced through warranty but it’s the ball ache of then changing them . I bought super pro for better front camber and ate through a set of them too . Again replaced under warranty . But , if I knew this before changing from standard I would never have bothered .


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Conan
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Re: Best PolyBushes setup for an R3 track only car

Post by Conan » Sun Aug 11, 2019 1:11 pm

Hi,
The first question would be, what is your car set up ?
Wheels, tyres, roll bars, suspension milage etc
What are you using the car for, sprint, hill climb or track days.
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Pete
Last edited by Conan on Sun Aug 11, 2019 1:16 pm, edited 1 time in total.
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Re: Best PolyBushes setup for an R3 track only car

Post by Stripey71 » Sun Aug 11, 2019 1:16 pm

Jap time series next season the 750c enduro
Car setup by MacG racing and RR
Braid fullrace A 17
Gaz suspension
Brakes Yellow rear on oem front ksport’s



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Re: Best PolyBushes setup for an R3 track only car

Post by Stripey71 » Sun Aug 11, 2019 1:17 pm

12 point FIA roll cage so no sway bar


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Re: Best PolyBushes setup for an R3 track only car

Post by Conan » Sun Aug 11, 2019 1:41 pm

I think you probably have some anti roll bars bolted to the suspension somewhere.
What size wheels are you running, 17,18,19 and what milage is the car on.
I thought you were probably going into competition with it and I think it’s only semi slicks you allowed in that series.
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Re: Best PolyBushes setup for an R3 track only car

Post by warpc0il » Sun Aug 11, 2019 2:30 pm

The original suspension bushes have been designed to provide maximum stiffness in the required planes, while still being compliant in others; in a way that's impossible for poly bushes to replicate.

The compliance isn't just there for nvh and comfort, it ensures that the geometry is dynamic for lateral loads under heavy cornering.

Poly bushes can make the handling much less predicable.

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Re: Best PolyBushes setup for an R3 track only car

Post by Stripey71 » Sun Aug 11, 2019 2:37 pm

Conan wrote:I think you probably have some anti roll bars bolted to the suspension somewhere.
What size wheels are you running, 17,18,19 and what milage is the car on.
I thought you were probably going into competition with it and I think it’s only semi slicks you allowed in that series.
Pete

17 wheels


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Re: Best PolyBushes setup for an R3 track only car

Post by PeteH » Sun Aug 11, 2019 2:50 pm

I've got Superpro in the front, and Japspeed ball-jointed links in the rear. The handling is rock solid predictable. They would be horrible on the road, but that's not what you are bothered about. The rear links make the biggest difference. I did the fronts only because of the extra camber and caster adjustment they provided.
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Stripey71 (Sun Aug 11, 2019 3:18 pm)
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