Track car buses and top mounts

[rickyquicky]

Have got a set of H&R coilovers for the phase 1 i'm currently building up to be a track-only car.

Before I fit them, I also have a set of 172 Cup wishbones to fit and so will be replacing all rubber bushes relating to suspension as well as top mounts.

Are PU bushes a MUST on a track-only car? I have concerns regarding some things i've heard about Powerflex bushes longevity.

Also are solid top mounts required? Or are rubber bushes just as good?

 

[rickyquicky]

Does anyone know what the Burpspeed guys use?

I have been looking at the powerflex black series, or replacing the whole lot with brand new standard unless there are better alternatives available.

It's my first proper track car so am slowly trying to learn what is/isn't neccessary!

 

[underdog]

in my opinion poly bushes are a must have for track cars unless you can afford rose jointed arms. standard bushes are too soft and wont hold you geometry settings too well around the corners.you could have -2/3 camber but with soft bushes this could be lost in the corners due to bush flex. some standard cars will be well into positive camber mid corner on normal bushes

 

[rickyquicky]

Ok thanks.

Same for top mounts then I presume?