Installed Kumho MX's today...
Thread Starter
Pro
Joined: Nov 2001
Posts: 731
Likes: 26
From: Austin TX
Installed Kumho MX's today...
I finally got rid of the Goodyear runflats. And, purchased the Kumho MX's.
The Kumho's are much quieter as everyone suggested. However, dry traction doesn't really seem any better than the Goodyears? Do these tires need to be driven and broken in to perform better? I was pulling 1.9 60' times with the Goodyears.
All driving has been on the street. And, I'm not doing burn outs for obvious reasons. Maybe I need to put 100 miles or so on them to see better performance?
I'm running 32 psi in the tires. Weather conditions about 70 degrees.
Any comments would be appreciated. Thanks :confused: :confused:
The Kumho's are much quieter as everyone suggested. However, dry traction doesn't really seem any better than the Goodyears? Do these tires need to be driven and broken in to perform better? I was pulling 1.9 60' times with the Goodyears.
All driving has been on the street. And, I'm not doing burn outs for obvious reasons. Maybe I need to put 100 miles or so on them to see better performance?
I'm running 32 psi in the tires. Weather conditions about 70 degrees.
Any comments would be appreciated. Thanks :confused: :confused:
Advanced
Joined: Mar 2003
Posts: 91
Likes: 0
From: los altos ca
Re: Installed Kumho MX's today... (CAracer)
I've read in other threads that there is a release agent on the tires to help get them out of the molds after they are made. They have said that it takes up to 1,000 miles to get rid of it. Dunno if this is true or not but it sounds ok. :skep:
Melting Slicks
Joined: Dec 2002
Posts: 2,480
Likes: 62
From: Middletown DE
Re: Installed Kumho MX's today... (Pooter)
I have had the Kumho's on for about 1500 miles and they hook ALOT better then my runflats (given - my runflats were pretty bald when i purchased the car).
I have noticed now that the weather is heating up that they are getting stickier and stickier...
I have noticed now that the weather is heating up that they are getting stickier and stickier...
Team Owner
Joined: Nov 1999
Posts: 26,679
Likes: 17
From: This vette goes to 11 Milford MA
St. Jude Donor '03-'05
Re: Installed Kumho MX's today... (99firetruck)
I have had the Kumho's on for about 1500 miles and they hook ALOT better then my runflats (given - my runflats were pretty bald when i purchased the car).
I have noticed now that the weather is heating up that they are getting stickier and stickier...
I have noticed now that the weather is heating up that they are getting stickier and stickier...
Pro
Joined: Dec 2001
Posts: 530
Likes: 0
From: North Brunswick NJ
Re: Installed Kumho MX's today... (Fastguy)
I have the same tire and would go to 35PSI cold. These tires have a Max PSI of around 50 or so. Just look at your side wall. I was told by the tire place that because of the cushy sideway, the 35 PSI would firm up the steering response that I was lacking compared to the runflats. I put in the standard 30PSI from the 35 they put in when I got home. They were right! Much better response. :blueangel:
Safety Car
Joined: Sep 2001
Posts: 4,411
Likes: 1
From: Wilmington NC
Re: Installed Kumho MX's today... (Traffic Hater)
I have the same tire and would go to 35PSI cold. These tires have a Max PSI of around 50 or so. Just look at your side wall. I was told by the tire place that because of the cushy sideway, the 35 PSI would firm up the steering response that I was lacking compared to the runflats. I put in the standard 30PSI from the 35 they put in when I got home. They were right! Much better response. :blueangel:
Just watch your treadwear. You may have more down the center of the tire. The Vette is a very light car as compared to the tread size.
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Le Mans Master
Joined: Jan 2000
Posts: 6,725
Likes: 0
From: South Bend IN
Re: Installed Kumho MX's today... (Richin Chicago)
I would suggest 24 psi cold for drag strip duty and a good burnout. I have a new set of drag radials sitting in my garage but so far haven't felt the need to use them. :cheers: :thumbs:
Le Mans Master
Joined: Jan 2000
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From: Poway CA
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Re: Installed Kumho MX's today... (gmf)
I have about 1200 miles on my MX tires. MUCH stickier than the runflats ever were.
I initially set them at 35 PSI, but on a long trip at 80-90 MPH in 110 degree heat (California central valley), I was getting overpressure warnings on the DIC (at 42 PSI). Annoying, but not really a problem since the tires are rated to 52 PSI.
I backed down a few PSI (to 32 cold), but I did notice a tiny bit of slop in the tires at the lower pressure.
I initially set them at 35 PSI, but on a long trip at 80-90 MPH in 110 degree heat (California central valley), I was getting overpressure warnings on the DIC (at 42 PSI). Annoying, but not really a problem since the tires are rated to 52 PSI.
I backed down a few PSI (to 32 cold), but I did notice a tiny bit of slop in the tires at the lower pressure.
Burning Brakes
Joined: Jun 2002
Posts: 1,202
Likes: 0
From: Clarksburg MD
Re: Installed Kumho MX's today... (SDVette)
I have about 1200 miles on my MX tires. MUCH stickier than the runflats ever were.
I initially set them at 35 PSI, but on a long trip at 80-90 MPH in 110 degree heat (California central valley), I was getting overpressure warnings on the DIC (at 42 PSI). Annoying, but not really a problem since the tires are rated to 52 PSI.
I backed down a few PSI (to 32 cold), but I did notice a tiny bit of slop in the tires at the lower pressure.
I initially set them at 35 PSI, but on a long trip at 80-90 MPH in 110 degree heat (California central valley), I was getting overpressure warnings on the DIC (at 42 PSI). Annoying, but not really a problem since the tires are rated to 52 PSI.
I backed down a few PSI (to 32 cold), but I did notice a tiny bit of slop in the tires at the lower pressure.
Le Mans Master
Joined: Sep 1999
Posts: 7,393
Likes: 7
From: Los Angeles CA
Re: Installed Kumho MX's today... (CAracer)
I have a new set of GY's on one set of wheels, and fairly new MX's on the other. Same freeway onramp - uphill straight into left hand turn, uneven pavement. Push down on pedal. MX's - no drama. GY's - hold on for dear life, they are all over the road. That about sums up my experience. By the way, the temp rise in the MX's at speed is large - I saw about a 13 lb rise last time out at the road track.
Thread Starter
Pro
Joined: Nov 2001
Posts: 731
Likes: 26
From: Austin TX
Re: Installed Kumho MX's today... (allanlaw)
I'm heading out to Carlsbad this weekend and see
how well the Kumho's hook up. Like I said earlier,
the runflats pulled 1.9's 60'. I didn't think that was too
bad.
Of course, the Carlsbad track is rarely prepped.
Thanks for all your comments and information.
how well the Kumho's hook up. Like I said earlier,
the runflats pulled 1.9's 60'. I didn't think that was too
bad.
Of course, the Carlsbad track is rarely prepped.
Thanks for all your comments and information.
Le Mans Master
Joined: Jan 2000
Posts: 5,074
Likes: 1,558
From: Poway CA
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Re: Installed Kumho MX's today... (CAracer)
I'm heading out to Carlsbad this weekend and see
how well the Kumho's hook up.
how well the Kumho's hook up.
