997.2 different brand tires on front vs back
10-30-2017, 02:28 PM
#17
Drifting
I have run the Hankooks on my '09 C2 Cabrio for three or four years now. I find that they don't last any longer than the Michelins but they certainly cost a lot less. My car is a daily driver. I don't track it. I drive aggressively. I have had zero issues with the Hankooks either in the dry or the wet.
I put the Bridgestone Pole Positions on my wife's E550 Cabriolet after absolutely hating two sets of Pirelli PZero Neros. The Bridgestones were very good tires. She traded that car before we wore them out so I cannot give an informed opinion on tread longevity. They were quiet (much quieter than the Pirellis) and handled well.
As for running two different brands of tire front and back, if your car is a driver and not tracked, there is absolutely no safety or performance reason you should be concerned about. These cars wear out rear tires at two times the rate they wear out the fronts, so from day two, you will have progressively less tread on the rear as you will on the front--even with the same brand at all four corners.
When I switched from the Michelins to the Hankooks, I replaced the rear Michelins and drove several thousand miles with Michelins on the front and Hankooks on the back. My car did not become dangerously unstable. I did not die in a ball of fire. To suggest that doing so is dangerous is silly.
If you know where the limits of adhesion are with whatever tire you have on the front, then you'll be fine.
I put the Bridgestone Pole Positions on my wife's E550 Cabriolet after absolutely hating two sets of Pirelli PZero Neros. The Bridgestones were very good tires. She traded that car before we wore them out so I cannot give an informed opinion on tread longevity. They were quiet (much quieter than the Pirellis) and handled well.
As for running two different brands of tire front and back, if your car is a driver and not tracked, there is absolutely no safety or performance reason you should be concerned about. These cars wear out rear tires at two times the rate they wear out the fronts, so from day two, you will have progressively less tread on the rear as you will on the front--even with the same brand at all four corners.
When I switched from the Michelins to the Hankooks, I replaced the rear Michelins and drove several thousand miles with Michelins on the front and Hankooks on the back. My car did not become dangerously unstable. I did not die in a ball of fire. To suggest that doing so is dangerous is silly.
If you know where the limits of adhesion are with whatever tire you have on the front, then you'll be fine.
10-30-2017, 03:06 PM
#18
Rennlist Member
I’ve been researching this a lot but still don’t understand fully. Since the 997.2 has different size requirements of tires in front and back, smaller in front larger in back, is it okay to use different brand tires for the front and back as long as they are correct size? So I would be using the correct size and both same brands for the axle they are on.
thinkjg about doing 2 of the nanking tires on the front axle and 2 s04 poles on the back for the larger Tires.
thinkjg about doing 2 of the nanking tires on the front axle and 2 s04 poles on the back for the larger Tires.
Secondly, it is NOT advisable, Porsche even doesn't recommend using the same tires with N0, N1, N2 lettering. The difference of adhesion of different tires will create a situation that handling, specially at the limit, will be compromised significantly. It also changes how front to rear transition and suspension works which were tested and tracked based on the same tires.
So, bottom line, don't do it unless you're saving a ton of cash and you're not driving your car hard, or in the rain.
10-30-2017, 03:21 PM
#19
RL Community Team
Rennlist Member
Rennlist Member
For the OP, this is the situation where I'd be concerned about the handling imbalance where the rears, even with more tread on them, could let go sooner than the fronts due to the level of grip afforded by the older but different tires on the fronts and the newer tires on the rear.
BTW, my wife got 18,000 miles out of her last set of Hankook rears.
BTW, my wife got 18,000 miles out of her last set of Hankook rears.
10-30-2017, 05:00 PM
#20
I have run the Hankooks on my '09 C2 Cabrio for three or four years now. I find that they don't last any longer than the Michelins but they certainly cost a lot less. My car is a daily driver. I don't track it. I drive aggressively. I have had zero issues with the Hankooks either in the dry or the wet.
...
As for running two different brands of tire front and back, if your car is a driver and not tracked, there is absolutely no safety or performance reason you should be concerned about. These cars wear out rear tires at two times the rate they wear out the fronts, so from day two, you will have progressively less tread on the rear as you will on the front--even with the same brand at all four corners.
When I switched from the Michelins to the Hankooks, I replaced the rear Michelins and drove several thousand miles with Michelins on the front and Hankooks on the back. My car did not become dangerously unstable. I did not die in a ball of fire. To suggest that doing so is dangerous is silly.
If you know where the limits of adhesion are with whatever tire you have on the front, then you'll be fine.
...
As for running two different brands of tire front and back, if your car is a driver and not tracked, there is absolutely no safety or performance reason you should be concerned about. These cars wear out rear tires at two times the rate they wear out the fronts, so from day two, you will have progressively less tread on the rear as you will on the front--even with the same brand at all four corners.
When I switched from the Michelins to the Hankooks, I replaced the rear Michelins and drove several thousand miles with Michelins on the front and Hankooks on the back. My car did not become dangerously unstable. I did not die in a ball of fire. To suggest that doing so is dangerous is silly.
If you know where the limits of adhesion are with whatever tire you have on the front, then you'll be fine.
10-30-2017, 07:54 PM
#21
Rennlist Member
For the OP, this is the situation where I'd be concerned about the handling imbalance where the rears, even with more tread on them, could let go sooner than the fronts due to the level of grip afforded by the older but different tires on the fronts and the newer tires on the rear.
BTW, my wife got 18,000 miles out of her last set of Hankook rears.
BTW, my wife got 18,000 miles out of her last set of Hankook rears.
10-31-2017, 10:25 AM
#22
RL Community Team
Rennlist Member
Rennlist Member
When I purchased my 2009 C2S with 26K miles on it, the Vovlo dealer put the cheapest tires they could find on the rears.... fronts were original Michelins. Thy put on the Continental AWS(?) all seasons. I drove on this set up for a while... the rears wore out really quickly.
What I learned: The Contis had way less grip than the front Michelins..... as a result, the back end would come out. I don't consider this dangerous for a few reasons.... Anyone who drives a car easily and then goes out and tromps it like a teenager is a moron and deserves the wrath of Darwin. With any car, particularly these high-performance units, you need to learn them by driving progressively more aggressive and doing so in varying conditions..... learn first. (I read somewhere that accident rates are very high in the first few months of ownership when a noob buys their first performance car.)
Even with these very different tires front to back, the car only showed the difference when pushed.... and pushing these high performance cars with all these electronic assists is well.... you really have to push it way beyond grocery getting.
I will never put different tires on front - rear for the simple reason I purchased a high-performance car to enjoy as a high-performance car. Why would I hamstring it?
Peace
Bruce in Philly
What I learned: The Contis had way less grip than the front Michelins..... as a result, the back end would come out. I don't consider this dangerous for a few reasons.... Anyone who drives a car easily and then goes out and tromps it like a teenager is a moron and deserves the wrath of Darwin. With any car, particularly these high-performance units, you need to learn them by driving progressively more aggressive and doing so in varying conditions..... learn first. (I read somewhere that accident rates are very high in the first few months of ownership when a noob buys their first performance car.)
Even with these very different tires front to back, the car only showed the difference when pushed.... and pushing these high performance cars with all these electronic assists is well.... you really have to push it way beyond grocery getting.
I will never put different tires on front - rear for the simple reason I purchased a high-performance car to enjoy as a high-performance car. Why would I hamstring it?
Peace
Bruce in Philly
11-01-2017, 12:50 PM
#23
I do not recommend it at all. I have mixed brands right now because my front tires are on back order. You cannot drive the car at even 7/10 without it getting squirrely. And definitely avoid highway.
11-01-2017, 02:12 PM
#24
I've got 11K on my Hankook tires and they seem to have a few thousand left. They were put on the car right before I bought it by Carmax. In a weird way, when it's cold the sidewalls get stiffer but the grip seems to remain the same till about 40 degrees or so. Which I like. When it's 90 and above they seem squishy on turn-in and hard braking. Not unstable, but squishy. So I learned to power out of the turns to spin them up a bit quicker and keep the air pressure up a bit. I started my cold weather mountain run last week at 33 front and 40 rear, by the time I got off the interstate to the fun bits they warmed up nicely(cruising at 70 to 95 MPH with an occasional 100 spurt) and the pressure went up enough.