What is the reason for the higher spring rate in the rear? The Nismo S-tunes I had were like that and the Bilstein PSS9 kit that I got had similar slightly stiffer at the rear. Obviously everyone is aware of the awful weight distribution of a GTR there must eb another underlying reason.
I would like to know too, I have heard people filling to the welsch plugs with not too much hassle. I would be very interested to know if people do this to engines that see some circuit work...?
Are you set on Ohlins or have you considered other options... i.e. Bilsteins. I have a set of PSS9's at the moment, I can not wait to fit some better springs and crank the damper up a bit to hit the track!
Great work and innovation. Very interested to hear your results from the ATESSA computer! Are you aware that an Australian electronics guru RUZIC has developed a unit that can be used to adjust the response of the ATESSA computers output?
Good luck, keep the updates coming.
Haha... photos look sick!
Please post up how you go with the roll centre measurement and so on. You going to look at bump steer too? It is something I want to do but have not built up enough patience to have a go yet.
Mike
To replace the subframe/cradle bushes you need to remove the diff and pretty much everything connected to the subframe. You can go spacers if you want but I would not, just replace the bushes, it is more work though.
You should be able to install the castor bushes using a vice and a mandrel.
The x-mounting or cradle bushes? Get a suspension shop to install them, I removed everything and went there with the subframe and bushes and said "you do it" and they did for like $50 cash!