Tire cupping. How quick do struts die?
02-17-2013, 11:41 AM
#1
3rd Gear Member
Thread Starter
Join Date: May 2006
Location: Ofallon, IL
Posts: 502
Tire cupping. How quick do struts die?
Not a whole lot in search here.. I swap tires to autocross.. so the Nitto's get rotated several times a year... Been since Oct for the autocross.. not a lot of miles...
She did just roll over 100k miles.
Noticed they're starting to cup (not easy to see in the picture).. Was zero cupping last rotation.. From what I've read, sounds like new struts are needed. How does one test a strut?
She did just roll over 100k miles.
Noticed they're starting to cup (not easy to see in the picture).. Was zero cupping last rotation.. From what I've read, sounds like new struts are needed. How does one test a strut?
Last edited by robs; 02-17-2013 at 11:41 AM. Reason: fat finger
02-17-2013, 02:26 PM
#2
6th Gear Member
If your roads in your part of Illinois were anything like where I was in Illinois (or any northern location that experiences moisture on the road with freezing at night and thawing during the day), then 100k miles is more than about time for suspension work.
02-17-2013, 03:07 PM
#3
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Join Date: Jun 2005
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I agree with Nuke
02-18-2013, 11:51 AM
#5
3rd Gear Member
Thread Starter
Join Date: May 2006
Location: Ofallon, IL
Posts: 502
American Muscle's got KYB's for $82 a pop Toyico's for $120 and Konis for $140.. I know nothing about any of these... Don't want to spend more than the Konis.. what's the best bang for the buck?
02-18-2013, 04:08 PM
#6
4th Gear Member
Join Date: Jun 2010
Location: Arkansas
Posts: 1,150
I Had 5k miles on mine when I put the Koni Sports and Steeda Comp Springs. I like the Koni's a lot! Might call Sam Strano, I think he is still a sponsor. He will talk to you about what you need.
Last edited by MarkMan; 02-18-2013 at 04:13 PM.
02-18-2013, 07:10 PM
#8
I agree that 100K is past service replacement for struts and shocks especially if your roads are anything like the pot hole riddled ones here in NY metro area. From that picture though I only see some cupping on inner edge even if you replace with stock ride height components make sure you get a good wheel alignment.
02-18-2013, 07:45 PM
#9
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02-19-2013, 12:15 AM
#10
4th Gear Member
Join Date: Nov 2006
Location: CA
Posts: 1,670
On average 60-70k miles is usually when struts start to weaken. There is no real definitive milage that they need to be replaced. If you bounce each corner of the car, one at a time, it should bounce one or two times after you stop. If it bounces more then that, then the shock/strut is probably on its way out. If you see any wetness around the piston going into the shock/strut, then it is leaking and is bad.
For a daily driver I like Monroe Sensitrac's. Have them in my wifey's mustang and have had no issues with it. Rides nice and smooth. If your racing, or like to corner hard, then a performance shock/strut is probably better suited for you. rockauto.com has KYB GR-2/Excel-G's for $54 & KYB AGX's for $107.
With that said, cupping could also be due to low tire pressure.
Good luck...
For a daily driver I like Monroe Sensitrac's. Have them in my wifey's mustang and have had no issues with it. Rides nice and smooth. If your racing, or like to corner hard, then a performance shock/strut is probably better suited for you. rockauto.com has KYB GR-2/Excel-G's for $54 & KYB AGX's for $107.
With that said, cupping could also be due to low tire pressure.
Good luck...