Michelin tire issue

[69x22]

I bought Porsche rated 335/30/20s for the rear of my 57. When im just easing down the road. I hear constant pinging underneath the car, the wheels end up with little rock pebbles in them. I pulled the tires off and noticed that the underneath has been sandblasted from just 80 miles of driving. These are 200 tread wear tires the same that are on my Camaro which doesn't have this issue. What do you guys think the issue is? I have read the reviews on Tire Rack and I don't see any issues from the Porsche guys. These were on sale at Tire rack.

[randy]

Originally Posted by 69x22

I bought Porsche rated 335/30/20s for the rear of my 57. When im just easing down the road. I hear constant pinging underneath the car, the wheels end up with little rock pebbles in them. I pulled the tires off and noticed that the underneath has been sandblasted from just 80 miles of driving. These are 200 tread wear tires the same that are on my Camaro which doesn't have this issue. What do you guys think the issue is? I have read the reviews on Tire Rack and I don't see any issues from the Porsche guys. These were on sale at Tire rack.

Michelins are just nice and soft. Nothing wrong with the tire. Im guessing you have the ps2? The super sports have a higher treadwear

[Vince@Meanstreets]

Porsche has the N compound. Not sure how much stickier it is but competitors seem to like them.

Better paint and a few coats of rubberized under coating might work for you.

[Solid LT1]

Originally Posted by randy

Michelins are just nice and soft. Nothing wrong with the tire. Im guessing you have the ps2? The super sports have a higher treadwear

On my C6 Z06 the Pilot Super Sports with 300 treadwear were stickier than the 220 treadwear pilots. The PSS tires ROCK! 1st time I ran that C6 Zat an AutoX I smoked some guys who had been racing their cars for Quite a while on 180 treadwear Kuhmo XS tires with a lot better alignment than I was running.

[So Cal Camaro]

Originally Posted by 69x22

I bought Porsche rated 335/30/20s for the rear of my 57. When im just easing down the road. I hear constant pinging underneath the car, the wheels end up with little rock pebbles in them. I pulled the tires off and noticed that the underneath has been sandblasted from just 80 miles of driving. These are 200 tread wear tires the same that are on my Camaro which doesn't have this issue. What do you guys think the issue is? I have read the reviews on Tire Rack and I don't see any issues from the Porsche guys. These were on sale at Tire rack.

Michelin's built to spec for various manufacturers can vary the compound quite a bit, treadwear rating is not indicative of how sticky these tires are....knowing which ones gives you an advantage, you obviously found one and expect the tire to wear pretty quickly if used for track...all I can say is my 300TW PSS is stickier than some 200TW's tires out there....

[69x22]

Don't get me wrong I like that the tires are sticky but not at the cost of damaging the underside of the car after 80 miles. My truck has Hossier quick times that are way stickier than these and it hasn't blasted the underside of it. I'm going to call Tire Rack and see what they think. Even the exhaust pipe is blasted. lol

[Beechy]

Modern-days cars (Porsches) have plastic fender liners so not an issue... Real steel on a chebby is a different application.
Jim.

[DBasher]

I haven't got a clue about the issue you're having, but damn that's a good looking 57!

[Vince@Meanstreets]

All I see is normal wear and tear from driving. When the Tire rack puts you on hold its so don't hear the laughter. : )

Seriously get some undercoating under there!!

[69x22]

Originally Posted by DBasher

I haven't got a clue about the issue you're having, but damn that's a good looking 57!

Thanks