315s & Tramlining, Anyone have this problem?
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315s & Tramlining, Anyone have this problem? Just like title says, i have 315s on the rear and the car is tramlining like crazy. i got an alignment and it was good for a couple of days and went back to how it was. its weird. i was thinking of taking it back. its getting very annoying. steering wheel is jerking left and right very badly. if anyone has any experience with this, it would help me out a lot.
On The Tree
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I'm pretty sure the tramlining has more to do with the front tires than anything else. What changes have you made recently to your wheel setup? Of course, worn out or damaged front suspension could be an issue as well. The wider the front tire and the firmer the sidewall is, the greater chance of a tramlining problem. A sidewall with more flex will absorb the ruts in the road rather than the wheel itself being jerked around.
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I'm pretty sure the tramlining has more to do with the front tires than anything else. What changes have you made recently to your wheel setup? Of course, worn out or damaged front suspension could be an issue as well. The wider the front tire and the firmer the sidewall is, the greater chance of a tramlining problem. A sidewall with more flex will absorb the ruts in the road rather than the wheel itself being jerked around.
Having drag radials in the front is probably not helping at all. They are set up with a softer sidewall than most street tires. They are probably wobbling side to side from the ruts in the road, and the softer sidewall can't control the motion.
I agree, I had drag radials on all 4 corners and turning hard corners and entrance and exit ramps were scary at speed -also did you consider wheel spacers for rear?
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i have thought about it. but why do u suggest it, and how big of a spacer?
my 315's would do that when they were starting to get really worn. I ran the sumotumo's for 2 sets and got rid of them when it started tracking. I ran the 555r's and they did the same when they got worn.
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somebody help me out. I have been working in a automotive alignment/ tire shop for a very long time and i have no idea what "tramlining" is?
You said the steering wheel is jerking back and forth, what speeds does this happen?
You said the steering wheel is jerking back and forth, what speeds does this happen?
Launching!
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From: SOUTH CAROLINA
hi.i agree with the above and this is my first time on the aforementioned term. my expertise is over 50 years with alot of suspension builds on custom restorations. i would check my front end at home. jack under lower contol arm/raise front tire one inch.
place bar under tire and lift up. any movement????????? bad ball joints/etc.
check:shocks/struts/bushings/tie rod ends/tire pressure/4-wheel alignment/worn steering linkage/wheel bearings????????????????????????????
double check your work and torque twice/ mark bolts with marker to assure nothing is missed. i firmly believe that you have issues with faulty parts.......good luck and keep us posted......have a blessed day..........jim
PS: ALWAYS USE PROPER SAFETY EQUIPMENT WHEN WORKING UNDER VEHICLE................MOST ROADS 2% CROWN FOR WATER RUN OFF/SAFETY............
Last edited by jim ravencraft; Feb 15, 2011 at 08:07 PM.
On The Tree
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Well, I was reading his other thread and he said it didn't do it with his old 19 inch wheels with a smaller sidewall. I'm assuming he doesn't have those rims anymore. What I would be doing is bolting on different wheels and tires if you have old ones or can borrow some from a buddy. See if it's any different. Perhaps the crown of the road could cause tramlining but I think it's more to do with the ruts in the road where the tiretracks are 'sunken' into the pavement. It's particularly noticable on a four lane road in the far right lanes. I researched a fair bit before when I had a 91 Z28 with horrible tramlining. Narrower tires make a big difference and I think the tread pattern could also make a difference. I think that tires with wide longitudinal tread grooves were worse than v shaped tread. What kind of tires did you have previously?
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^^^ yea those 19s are gone. i had nitto 555r tires on them previously. i actually sold them cuz i was sick of the tramlining, but little did i know that it would get worse.
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Those are aspect ratios (aka sidewall height). They already stated their widths. All wide tires will have some trammeling effect. Most cas on the road have narrower tires than our cars. Therefore, the ruts in the concrete is too narrow for our tires to sit in completely, and they hop along in the ruts. I am willing to bet that the softer case construction of having drag radials in the front is just amplifying this effect.