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2 minute(s) of a 612 minute read
4-19-2014
4-19-2014
Newer pictures - these taken with my Nikon gears: Nikon D80 shot in RAW, developed with Capture One. Lens was Nikon's superb and cheap 60mm f2.8 D prime.
4-30-2014
Besides what pwdrhound mentioned (thanks), it is well known that the rear of our Turbo, even when brand new with working LSD, has a lot of unwanted vertical and lateral movements. Plain and simple, it has a softly tuned suspension. GMG Racing once had a video of the rear of our Turbo at speed and sadly you could see significant amount of movement of the rear.
Assuming all other components are working well, a basic principle of suspension tuning is this: any suspension is a system of links, with rubber/plastic washers etc. between the links that helpt to reduce NVH but hurt by increasing unwanted movement, if you replace any of these links with metallic counterparts (for example what pwdrhound mentioned with the LCA - monoball end & thrust arm bushing), the movement would decrease as they are all interconnected and all help to "brace" the movement.
So how do you know which link to "upgrade" to reduce this rear motion? With unlimited resources, one would get all different links and try them one by one http://www.tarett.com/items/996-997-...-arms/list.htm. With us being amateurs, the 2 starting point I could think of:
1. GMG sway bar with Tarrett drop links. I have direct experience with this: there is no question that this combination in my Bilstein car reduces the rear motion. In particular - the drop links, which are cheap and unlike any other link could be easily taken on and off to compare (I've done it several times and could confirm its effect with certainty.).
2. Rear Toe Control Arm: I don't have this but for whatever reason when I asked around, this is one of THE most recommended upgrades by tuners for reducing rear movement.
