Cooper RS3-S tires...ugh

Discussion in 'SRT Hellcat Wheels and Tires' started by Hubbs, Sep 8, 2015.

  1. Hubbs

    Hubbs Silver Member

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    Well, I just had a new experience with tires this weekend. Several months ago I mounted up a pair of these Coopers (305/35s) on the rear of my Chally HC hoping they'd be as good as the factory summer tires. Not even close. Traction is very noticably reduced.

    Coming into this weekend, I planned to replace them, so I took the opportunity to have some fun before I removed them. They had a couple 32nds above the wear bars, giving me plenty to burn.

    I found a nice, big, smooth concrete area away from people that might get annoyed and did some donuts and drifty circles. Nothing too crazy and I didn't boil them to death.

    A strip of tread about a foot long and 2" wide peeled off one of the tires. The other tire has a spot where the same is just starting to happen. I got lucky and there's no damage and I'm able to drive on it.

    I've never seen tires come apart like this, especially with legal tread remaining. Have I just been lucky? Ever had this happen? I'm wondering about the tire quality at this point. Not so sure I'm comfortable going 150 mph on these tires, regardless of how much tread remains. Scary thought.

    Hooefully I'll have some more photos soon.
     

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  2. hellcat1

    hellcat1 Gold Member

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    The stock Pirellis will do the same thing..reason I know this, road kill has proven this, and dodge did an event at Woodward dream cruise and I witnessed the tires coming apart doing burn outs, and a little drifting...
     
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  3. Hubbs

    Hubbs Silver Member

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    Thanks! When I was a kid, I went through MANY tires having fun like this and never ran into this problem. Thanks for the reference point!

    I'm going to contact Cooper to, if nothing else, let them know and hear what they have to say. To me this raises a question of safety.
     
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  4. Hubbs

    Hubbs Silver Member

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    Wow, I just proved how poor the Cooper tires are for traction. Mounted drag radials today...wow!:)

    My best 0-60 on the street with:
    Factory summer tires 4.1
    Cooper RS3-S 305/35-20s 4.7
    Nitto 555R 275/40-20s (first and only try, 4 people in car, 35 psi) 3.8

    I'm thinking 3.5 will be pretty easy. I likey DR's!
     
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  5. DGatzby

    DGatzby Gold Member Hellcat Car Club HCC Charter Member Midwest Regional Pres.

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    Hubbs looks like you found the same as the difference btw night and day from what I have been reading...have fun.
     
  6. Nycsrt

    Nycsrt BANNED

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    I got the cooper rs3s I love them quiet soft in all weather conditions and best for road trip tires or daily driving (Drs are for track not street ever try switching lanes at 170 wit dr on ?im not trying be a dick cooper don't pay my bills just saying can't compare mangos to knobs
     
  7. Nycsrt

    Nycsrt BANNED

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    And four people in challenger seems like a car pool lol
     
  8. solo7777

    solo7777 SRT Terminator Hellcat Car Club Western Regional President HCC Charter Member

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    I ordered these in 275-40/20 this week. We will see. Will use mostly for street driving not burning. Too much. ;)
     
  9. soundman5000

    soundman5000 Silver Member

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    I would do a warrantee warrantee claim just to see what happens... Evan doing burnouts you could be dealing with a defective tire and with chunks coming of you may get a new set? I would try it, as all Cooper can say is no.
     
  10. SRT_HC_707

    SRT_HC_707 SRT_HC_707 Staff Member

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    Let me know once you get some miles on them (I know you rack them up). I've had positive experiences with these tires but never on a Hellcat. Curious to see what you think. Hopefully Cooper is still making the same great tire they were 3 years ago.'

    Nycsrt how many miles on yours? Seems like you like them so far.....

    Also, for others adjust your tire pressure. I usually run my tires about 6PSI over the door lable recommendation. I found with the Pirelli tires they just had no traction there. I backed them down to 3PSI over and it's great (great within reason -- they car will break them loose in a heartbeat but it's the best for me given this tire).
     
  11. Nycsrt

    Nycsrt BANNED

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    About 700
     
  12. Hubbs

    Hubbs Silver Member

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    Switching lanes at 170? MPH? I don't generally drive that fast on the street. :D Tried them out last night and they handle just fine. They felt great, actually. I didn't push them like I was racing or anything. They seem perfectly at home on the street. I'm aware of the limited tread, so I'll be very careful in the rain...not that we get any in Dallas. What's not good about them for the street other than the hydroplaning thing? Seem perfect to me.

    I thought the Coopers were fine as well other than not having any traction and large chunks of tread flying off. Not sure I would trust them at high speed...when having a little fun late at night.
     
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  13. Hubbs

    Hubbs Silver Member

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    I would, but the tiers were already 75% worn out. No warranty left there....especially knowing I was burning a bit. haha
     
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