Handling problems - any advice?
10-07-2010, 03:07 PM
#61
I haddah Google dat
Rennlist Member
Rennlist Member
Kuhmos should be ok. Be aware of the speed/ heat rating. The higher, the better.
I like Bridgestone, but have Fuzions on mine now.
10-07-2010, 03:26 PM
#62
Advanced
Thread Starter
Yeah, but I did leave the pressures at 36 psi. They offered to send me out a new tyre but it's not clear which is at fault. They look fine. I gather from the conversation 'pulling tyres' are not unusual. I'm kind of relieved . . . Well, hugely relieved! Thanks for all the help. Ed, you were right not to discount the tyre!
10-07-2010, 03:33 PM
#63
I haddah Google dat
Rennlist Member
Rennlist Member
This is slightly OT, but I had to replace a damaged tire once on a Saturday, on my way out of town. All I could find was Walmart, and they had the right size tire, but it was a V rated Goodrich, and mine were all Bridgestone S O3. It worked well enough that I kept it on there for 4 months until I bought the new Fuchs and 4 new tires. No pulling, no scary handling.
Just my own .02
Just my own .02
10-07-2010, 03:46 PM
#64
Race Car
I like bridgestone as well. I put a set of Falken on the Porsche a couple of months ago. I've always liked falken tires as a budget tire and especially now since they entered the ALMS as a sponser. They are the maker of Fusion tires as well, actually, Sumitomo is the parent of them all IIRC. Just put a $1000 set of tires on the 09 F150(20" wheels) and went with a Bridgestone.
10-07-2010, 04:09 PM
#65
I haddah Google dat
Rennlist Member
Rennlist Member
I didn't know that! I thought of Falken as a drifter tire, but I'm impressed at their pace in ALMS, especially for a new team. It does make me look at their tire as an option, no doubt.
10-07-2010, 04:12 PM
#66
Advanced
Thread Starter
Don't overlook the tire thing. There have been more than one set of bad tires sold over time. I'm not a fan of Kumhos. The limited slip diff will exagerate any differences in the rear tires from side to side with accel/decel as you describe. Make sure the tires are the same size, if directional-mounted in the right direction, proper pressures, etc. (note the psi recommendations from the factory aren't as much a function of year built as compensation for oversteer tendency and Porsche trying to protect idiot drivers)
Try the side to side swap, as recommended.
Try the side to side swap, as recommended.
10-07-2010, 04:20 PM
#67
Race Car
A tire thread I will avoid.
10-07-2010, 05:28 PM
#68
Advanced
Thread Starter
This is slightly OT, but I had to replace a damaged tire once on a Saturday, on my way out of town. All I could find was Walmart, and they had the right size tire, but it was a V rated Goodrich, and mine were all Bridgestone S O3. It worked well enough that I kept it on there for 4 months until I bought the new Fuchs and 4 new tires. No pulling, no scary handling.
Just my own .02
Just my own .02
****, I've just thought, the tire was rotated on the wheel making it suitable for the other side. That means the right rear tire and wheel are on the left side now, not just the tire. So could I have a bad rim?
10-07-2010, 05:45 PM
#69
I haddah Google dat
Rennlist Member
Rennlist Member
No, it's the tire. Tire defects are not common, but they do occur, as already pointed out.
Standard wisdom is to never mix tire brands, and never mix speed ratings. It's not even a good idea to run new/ old tires on the same car, though we do it.
I was offering an instance where it worked out ok, just to temper accepted wisdom a bit.
Standard wisdom is to never mix tire brands, and never mix speed ratings. It's not even a good idea to run new/ old tires on the same car, though we do it.
I was offering an instance where it worked out ok, just to temper accepted wisdom a bit.
10-07-2010, 06:01 PM
#70
Race Car
I'm still going to stay tuned here. I understand the findings thus far, and hope all is under control. I really hope it is the tires, but...I would still set up an inspection/alignment/corner weight with a good shop that is reccommended from other Porsche owners in your area.
10-07-2010, 06:08 PM
#71
Advanced
Thread Starter
No, it's the tire. Tire defects are not common, but they do occur, as already pointed out.
Standard wisdom is to never mix tire brands, and never mix speed ratings. It's not even a good idea to run new/ old tires on the same car, though we do it.
I was offering an instance where it worked out ok, just to temper accepted wisdom a bit.
Standard wisdom is to never mix tire brands, and never mix speed ratings. It's not even a good idea to run new/ old tires on the same car, though we do it.
I was offering an instance where it worked out ok, just to temper accepted wisdom a bit.
Another interesting point for any tirerack users. Tires come with a 30 day return. I have a habit of ordering them and taking a month to get them installed. Not a good practice should you find yourself with a defective one outside the warranty!
I'm grateful for all the help, thanks hugely! I'm especially grateful to Ed for pointing me to this forum. It's addictive reading. A wealth of users and information. Most of the time a search reveals somebody already having gone through the problem I'm faced with and the solution is just a read away!
As for KUHMO's, I'll reserve my opinion until further testing. I had 4 Michelin tires on my Honda for 55,000 solid, safe miles at $600 a set. I replaced them today with probably 10,000 left in them. It was a combination of low tread going into winter and the fact that 2 had been repaired and one had a slow punture. I put 4 KUHMO's on for $350. We shall see!
10-07-2010, 06:08 PM
#72
Three Wheelin'
Glad you found your problem, what kind of Kumhos? The higher end Ecsta MX/XS are OK, as well as the R-compound Victoracers, but I dunno about the cheap ones.
and I think it was way back on post number ... er..... 2
10-07-2010, 06:47 PM
#74
Rennlist Member
Ha, that's right!
Well, I pushed it....as I'd experienced the same exact thing, and concluded this the minute I read his symptoms.
Of course, that is not to say the car could not benefit form a thorough look and suspension components, bearings, etc.
Well, I pushed it....as I'd experienced the same exact thing, and concluded this the minute I read his symptoms.
Of course, that is not to say the car could not benefit form a thorough look and suspension components, bearings, etc.
