some autocross pics/vids
04-18-2008, 04:11 PM
#16
Pro
Join Date: Oct 2007
Location: Levis, Quebec, Canada
Posts: 575
Likes: 0
Received 0 Likes
on
0 Posts
The deal with rear toe is that as the back end unloads, it flexes towards toe out (unstable). So if you don't put in enough rear toe in, then every time you lift off the gas the back end will start to rotate. This can be great on a tight course if you know what you're doing. Rear dampening impacts this too. Putting in too much rear toe will make the car too stable and it'll push a bunch again. michel, if you put in -.2* of rear toe, I think the car will be loose enough for you, but you can run in between 0 and -.1 if you're feeling adventurous. The videos have -.1ish rear toe, 2.7* camber all around, m030 option struts/tbars, 26.8mm front sway, and 20mm rear sway. I used to have 25.5/18mm sways and I honestly can't tell much of a difference.
04-18-2008, 04:31 PM
#17
Instructor
Join Date: Apr 2007
Location: Littleton Colorado
Posts: 144
Likes: 0
Received 0 Likes
on
0 Posts
Yes .... as stated , as the rear suspension unloads , the toe OUT in the rear will increase , causing the rear of the car to rotate . Thus if we have more rear toe in , it wont have as much toeout apon unloading ( Off throttle )
04-18-2008, 04:47 PM
#18
Pro
Join Date: Oct 2007
Location: Levis, Quebec, Canada
Posts: 575
Likes: 0
Received 0 Likes
on
0 Posts
Thanks, even though I have a lot of racing experience I always had to pay and have someone else take care of my car's alignment...Like with my Formula Ford the guy doing alignment knew what it took for that specific chassis to make it right so I didn't bother with specs ! And I won two championships with it...
04-20-2008, 02:48 PM
#19
Race Car
Thread Starter
Join Date: Sep 2006
Location: Jacksonville, FL Duval County
Posts: 4,220
Likes: 0
Received 35 Likes
on
24 Posts
Hey I wanted to correct something I said- I found my old spec sheet and I was running about -.11 degrees of toe in the back (I must have gotten .7 confused with .07), which is only a bit more than is in the videos. So mark, don't worry about fixing anything just yet. I will say that -.2* would probably be an awful lot. Running unstaggered on street tires, though, I think up to -1.3ish wouldn't be too absurd, it just wouldn't be as much fun (and you'd wear out your tires on the street).
