New Alignment and corner balance
#16
I was running -2.2F and -2.0R camber prior to the realignment. The new alignment was based on my track tire wear assessment, driving style, and goals with the car. I did not have any issues with street wear before, as far as I could tell, but I only put about 2k street miles on the car each year so it's hard to tell. I might drive it once on the weekend just so that it doesnt sit. On a RWD platform, front tires see very little wear with a majority of the wear on tbe rears, about a 3:1 ratio on my car. My goal was to maximize track performance with street wear not really a concern. As such, the car was aligned to Cup specs with the camber values obviously on the rather gentle side (for cup cars anyway). I have also noticed that my rear tire wear has improved since going removing all the rubber from the rear and going to full monoball and solid caster pucks. I was getting a lot of toe change under load and that was eating up the inside of the tires. Now that the back end is locked down its a lot better. The car is also much more settled now under hard breaking as the rear can no longer toe out under load. More to come....
Last edited by powdrhound; 08-07-2013 at 08:39 PM.
#17
Here is a video of the car chasing down a couple of 997 Grand Am Cups at HPR on 08/02/13. Not all that bad for a street legal car driven to the track on NT01s. Too bad the NSX got in the way.. With the new alignment, sway changes, and shock adjustment the car feels much better. The stiff H&R rear sway is on full soft but the car is still oversteering quite a bit. I've since swapped over to the GT3 sways and will be tracking this weekend to further dial it in. Front uprights are going to be swapped over to GT3 Cup uprights which will work much better at my ride height.. I'm pretty happy where we're at with it so far...
Last edited by powdrhound; 08-13-2013 at 02:19 AM.
#19
Fine tuning on the suspension continues and the times are down to almost 1:58 on NT01s. The rear sway bar was swapped for a GT3 sway and the car is much more progressive and balanced at the limit. Oversteer is very minor and easily controlled. GT3 front Cup uprights are next...
#20
996GT3 Cup front upright jewelry.... This should be the last piece of the puzzle...
http://www.flickr.com/photos/87731073@N06/9567253672/http://www.flickr.com/photos/87731073@N06/9567253672/ by http://www.flickr.com/people/87731073@N06/, on Flickr
http://www.flickr.com/photos/87731073@N06/9567253672/http://www.flickr.com/photos/87731073@N06/9567253672/ by http://www.flickr.com/people/87731073@N06/, on Flickr
#21
Had mine weighed, no driver, full tank of gas, spare tire and rear seats taken out with stock wheels solid spokes, pss10's but everything else stock.
FL: 679 FR: 592
RL: 1035 RR: 1079
Total 3385 lbs
FL: 679 FR: 592
RL: 1035 RR: 1079
Total 3385 lbs