Tires causing car to "Dart"?
Thread Starter
Racer
Joined: Dec 2003
Posts: 258
Likes: 14
From: Santa Maria Ca.
Tires causing car to "Dart"?
I've had 3 late model Corvettes in the past 18 years or so; one C-4 and two C-5s.
I've noticed that the cars handle very well when the tires are new, but after about 1/2 the tread is worn down, the cars seem to "dart" when driving over road imperfections like paving seams, between lanes, etc.
The car feels like there is "slop" in a tie rod end or something, it seems to want to jump 6 inches left or right when the road surface isn't perfect.
I know it's the tires, because I currently have two C-5s, and when I change the tires/wheels between the two cars the problem transfers to the car with the old tires. When I replace the tires; the problem goes away, for a while...
It's done this with my C-4 and the C-5s; doesn't matter if they are run-flats or not, all the tires I've been buying seem to do that after their "Half-Life".
It's time to buy another set for one of the C-5s, so I was wondering if anyone has a recomendation for a tire brand that doesn't do this after "Half-Life"?
Thanks,
Mike
I've noticed that the cars handle very well when the tires are new, but after about 1/2 the tread is worn down, the cars seem to "dart" when driving over road imperfections like paving seams, between lanes, etc.
The car feels like there is "slop" in a tie rod end or something, it seems to want to jump 6 inches left or right when the road surface isn't perfect.
I know it's the tires, because I currently have two C-5s, and when I change the tires/wheels between the two cars the problem transfers to the car with the old tires. When I replace the tires; the problem goes away, for a while...
It's done this with my C-4 and the C-5s; doesn't matter if they are run-flats or not, all the tires I've been buying seem to do that after their "Half-Life".
It's time to buy another set for one of the C-5s, so I was wondering if anyone has a recomendation for a tire brand that doesn't do this after "Half-Life"?
Thanks,
Mike
Melting Slicks
Joined: Jul 2007
Posts: 3,200
Likes: 34
From: Kingsville Ontario Canada
I had this problem with my 1990 C4 Vert.
The problem I found was the kumho Tires. These would dart all over the road from the first day they were installed.
Once I changed to Sumitomo Tires the problem went away.
I am on my third set of tires on my C5 , Original GY Run Flats, Sumitomo and now Hankook Ventus V12's. Never had this problem on my C5.
The problem I found was the kumho Tires. These would dart all over the road from the first day they were installed.
Once I changed to Sumitomo Tires the problem went away.
I am on my third set of tires on my C5 , Original GY Run Flats, Sumitomo and now Hankook Ventus V12's. Never had this problem on my C5.
Instructor
Joined: Nov 2011
Posts: 224
Likes: 1
From: Charlotte NC
It is often called tramlining I think. The original GY F1s on my Z06 did it horribly. But the new Conti Extreme Contact DWS set I just put on go straight and true no matter what the road surface does.
See http://www.tirerack.com/tires/tirete....jsp?techid=47
See http://www.tirerack.com/tires/tirete....jsp?techid=47
Thread Starter
Racer
Joined: Dec 2003
Posts: 258
Likes: 14
From: Santa Maria Ca.
Tramlining !
Cool thanks for the link and explaination.
I knew it was happening, just didn't know why.
The old tires have less tread on them; making them more responsive.
Thanks.
Anybody recomend a tire that "tramlines" less as it ages?
I knew it was happening, just didn't know why.
The old tires have less tread on them; making them more responsive.
Thanks.
Anybody recomend a tire that "tramlines" less as it ages?
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Intermediate
Joined: Sep 2007
Posts: 34
Likes: 0
I have gy run flats. 34 pressure all the around. Run that for 2000 miles or until they get squirrely then go to 38 for a very noticeable improvement. Run for 2000 then realease the pressure bach to 34. Ill do thos until i get rid of the run flats.
