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Driving in the Rain on Cup2's

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Old 06-20-2017, 08:33 PM
  #21  
JMills
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Drove in rain once!!! Will not do it again!
Old 06-20-2017, 10:19 PM
  #22  
23/C8Z
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Originally Posted by 2fastnow
Absolutely no control at all, none.
^^^^^^^^^^^^^^^^^^^^^
this is 100% dead on ***** accurate



first C7Z I ever drove was this one. An A8 Z07. And it rained and at 50mph I felt like I was gonna die. You hit the slightest puddle or road with a groove from heavy traffic and its a catastrophic panic attack. On the garden state parkway on way to Millville from Lakewood.

That's why I had ZERO interest in the Z07 when I started looking. Those tires serve one purpose. Dry track attack thats it.

Last edited by 23/C8Z; 06-20-2017 at 10:21 PM.
Old 06-21-2017, 07:47 AM
  #23  
dabear
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Zo6/Zo7 with Cup2s is my daily driver. 25k miles. I drive in the rain with no problem. It if gets heavy rain, I'll put it in weather mode.

Only issue is occasionally with deep puddles. Then again, I've hydroplaned in deep puddles with SUVs, so not much difference.

NOT a big issue at all if you slow down to 55mph.
Old 06-21-2017, 11:31 AM
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23/C8Z
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Originally Posted by dabear

NOT a big issue at all if you slow down to 55mph.
Lol. Well traveled road at 35mph in steady rain is a white knuckle event as the car just floats on .5 inch of water. Can you do it? Yeah it can and has been done but it's no where NEAR not a big deal. Those tires are best and worst there are.
Old 06-21-2017, 11:37 AM
  #25  
AZDANZ06
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I hated the Cups, took them off after 50 miles or so, heard too many stories of people going off the road in rain or bad weather conditions.
Old 06-21-2017, 12:12 PM
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CT Grand Sport CE
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I don't know how tread plays into this formula, but hydroplane speed is 9 x square root of the tire pressure. 30psi = 49mph.
Old 06-21-2017, 12:16 PM
  #27  
Monkey D. Luffy
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Originally Posted by Classic-Chevy-Guy
Remember the Weather setting for the car. At Spring Mountain we experienced the power of the Weather mode on the skid pad.
I drove in the rain, on curvy mountain roads and on the Hwy with cup 2's and lived to type this message

turn on weather mode, take it easy on the go fast pedal(slow and easy) and you will be fine.
Old 06-21-2017, 12:57 PM
  #28  
dabear
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Originally Posted by 16/C7Z
Lol. Well traveled road at 35mph in steady rain is a white knuckle event as the car just floats on .5 inch of water. Can you do it? Yeah it can and has been done but it's no where NEAR not a big deal. Those tires are best and worst there are.
I regularly drive the Z in the rain on the highway and side roads. After 25k miles doing so I've not dinged my car or anything else nor am I too scared to drive it again in the rain. NOT a big deal in the rain.

I guess others may feel differently but the sky doesn't fall nor does the Z head to the nearest ditch/tree/light post once the road gets wet.
Old 06-21-2017, 01:10 PM
  #29  
99HRDTP
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These tires definitely don't like heavy rain at speeds above 55 or so. Have never had issues with past Corvettes, no matter which tire, but these have to be babied, especially in sudden, but frequent Florida squalls. Will have to try weather mode next time to see if there's an improvement.
Old 06-21-2017, 02:15 PM
  #30  
Monkey D. Luffy
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There are 1000's of car driving all around you with far less tread on their tires than cup 2's have...just saying
Old 06-21-2017, 02:20 PM
  #31  
Bill Dearborn
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Interesting how some people can't keep the car on the road and others can bomb down the highway at 60 to 75 mph in heavy rain without an issue.

What puckers some butts doesn't even tickle others.

Bill
Old 06-21-2017, 02:47 PM
  #32  
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Originally Posted by Bill Dearborn
Interesting how some people can't keep the car on the road and others can bomb down the highway at 60 to 75 mph in heavy rain without an issue.

What puckers some butts doesn't even tickle others.

Bill
I think a lot of it has to do with road condition. Tire grooves that collect water, and propensity of rain. If you live somewhere that it rains a lot, the roads will generally be cleaner. If it rarely rains, the roads will be oily and dirty...and slippery as snot. (kind of like getting into the marbles on the track)
Driver experience also plays a big part - but I grew up in the midwest, driving in rain, snow, and ice... when you're truly hydroplaning, you're really just along for the ride until it catches traction again. ...The PSC2's are a track-ish tire, probably not developed to expel water, either.
Old 06-21-2017, 05:35 PM
  #33  
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Picked up my Z06/Z07 at Kerbeck last month and drove 1,600 miles back home to Dallas, and about 1,100 of those miles were in pouring rain sometimes heavy enough that visibility forced me to slow down. Ran in Sport mode the entire way, thought that would prevent cylinder de-activation during break-in and of course varying speed and gear selection as the manual says but mostly at 75+, and never felt any loss of control. What rain does do is force one to pay attention to the car and its surroundings and actually drive. As a long-time HPDE instructor it's been my experience that tires and/or road conditions are less an issue in the rain than lack of situational awareness i.e. not looking far enough ahead and anticipating what might be coming up, and over-driving the car along with herky-jerky inputs to the controls. As Connman said, driver experience plays a big part.
Old 06-21-2017, 10:08 PM
  #34  
why1504
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Wow, talk about opinions at both end of the spectrum. I am wondering if you guys who drive in the rain without issue have a better wheel alignment than those that have the really bad experiences.

Thanks for the comments.
Old 06-23-2017, 11:26 AM
  #35  
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Originally Posted by why1504
Can someone advise on just how difficult this can be. Considering taking my Z06 on a short trip but still running the Cup 2's. How dangerous is this with the tires?
Wet roads are ok. However heavy rain with standing wet is very dangerous. The car totally hydroplanes so reducing speed is required. A short trip is ok but better to wait out any heavy downpours.
Old 06-23-2017, 11:34 AM
  #36  
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Originally Posted by dabear
Zo6/Zo7 with Cup2s is my daily driver. 25k miles. I drive in the rain with no problem. It if gets heavy rain, I'll put it in weather mode.

Only issue is occasionally with deep puddles. Then again, I've hydroplaned in deep puddles with SUVs, so not much difference.

NOT a big issue at all if you slow down to 55mph.
Always use weather mode in rain! Agree if you stay 50 to 55 it is not too bad. However it sucks to be on the edge of control and trucks and cars are flying by at 80. In my opinion if driving in rain is a regular think get different tire.
Old 06-23-2017, 05:23 PM
  #37  
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Bought my 2017 M7 Z07 with the cups. Live in SW FL and it really rains here. Drove it home, called the tire store and put on some Pilot Sports, sold my cups the next day to a buddy whom tracks more than me. I think it would be insanity to drive the cups here in Fl any time when in rains.



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