Roll Steer/Bump Steer corrections for C4 lowered?
12-02-2008, 12:38 PM
#1
Le Mans Master
Thread Starter
Member Since: Feb 1999
Location: Hawaii
Posts: 8,522
Likes: 0
Received 3 Likes
on
3 Posts
St. Jude Donor '03 & '05
Roll Steer/Bump Steer corrections for C4 lowered?
I think, along with maybe old tie rods in the rear, that I lowered the Vette too much, and I am now experienceing a possible problem called roll steer on my C4. With the ZO7 springs, HAL shocks on stiff, and good autocross alignemnet and 1/16 inch toe in on the rear it has a tail happy problem when under heavy breaking prior to a turn.
So, how do you explain Roll Steer? And can you fix it without spherical rod ends or raising the vehicle back up?
So, how do you explain Roll Steer? And can you fix it without spherical rod ends or raising the vehicle back up?
12-02-2008, 01:41 PM
#2
Race Director
There was a topic about this awhile back in C4 tech. A forum member sent me a picture of shims to correct the bump steer.
He measured and corrected 1/2" with shims.
He measured and corrected 1/2" with shims.
12-02-2008, 02:47 PM
#3
Le Mans Master
Thread Starter
Member Since: Feb 1999
Location: Hawaii
Posts: 8,522
Likes: 0
Received 3 Likes
on
3 Posts
St. Jude Donor '03 & '05
I rememeber reading this and it was like .665 inches, but I dont think he stated how many inches he lowered the Vette, or if he used a Bump Steer gauge to ensure it was correct.
