Tire replacement stress
08-29-2014, 08:31 AM
#31
Drifting
I wish Porsche would actually design the car for run flats for exactly this reason. A GTR was designed from the start for run flats, so the suspension is tuned for the stiffer sidewall and the tires work really well - ask any GT3 owner who has tried to keep up with a GTR on a track - and the tires are carrying so much more weight.
BMW owners on the other hand can't wait to get rid of the stock run flats, I put this down to the suspension not being designed for them and basically they were a marketing driven option, not an engineering decision.
Anyone who doesn't like run flats really should try a GTR to see what they can do - I never had any complaints when I had one....
BMW owners on the other hand can't wait to get rid of the stock run flats, I put this down to the suspension not being designed for them and basically they were a marketing driven option, not an engineering decision.
Anyone who doesn't like run flats really should try a GTR to see what they can do - I never had any complaints when I had one....
I always travel with a compressor and pack of tire plugs, though with no jack and no tire iron, it's of limited use without a good samaritan to lend aid. I'm still looking for a compact enough low-profile jack to keep in my car all the time. If the tire takes sidewall damage, or just disintegrates... I'm calling AAA and getting whatever cheapass tire mounted they've got in stock in the right size until I can get proper replacements shipped.
08-29-2014, 10:24 AM
#32
Pro
08-29-2014, 10:24 AM
#33
Instructor
Join Date: Sep 2010
Location: Redmond, WA
Posts: 157
Likes: 0
Received 0 Likes
on
0 Posts
Stock GTRs have run flats and will out corner, brake, grip even with significantly more weight of the car than pretty much any Porsche, except the 918. Go read a few stock vs stock tests. Tires are only one part of a complex suspension system, if designed right, they can be very effective.
I went through three sets and never thought about replacing them with non run flats, they just worked so well on the track, road and in the wet. Only at low temperatures were they a problem.
I went through three sets and never thought about replacing them with non run flats, they just worked so well on the track, road and in the wet. Only at low temperatures were they a problem.
08-29-2014, 10:30 AM
#34
Banned
Join Date: Jan 2013
Location: Chicagoland Area
Posts: 26,142
Likes: 0
Received 5,388 Likes
on
2,509 Posts
08-29-2014, 10:40 AM
#35
Nordschleife Master
Actually not a bad idea -- maybe we should all carry a jack with us. Let us know if you find one.
08-29-2014, 11:42 AM
#36
Race Car
Join Date: Oct 2002
Location: Fairfax County, Virginia
Posts: 4,014
Received 3,864 Likes
on
1,352 Posts
http://www.handyindustries.com/produ...l-scissor-jack
08-29-2014, 01:35 PM
#37
Instructor
Just this week I had the second rear tire patched on my 991 within two months. This time I had two screws and 4 nails. Took two patches to do the job. I'm starting to think mt tires have magnets in them.
08-30-2014, 01:56 AM
#40
Race Car
Join Date: Oct 2002
Location: Fairfax County, Virginia
Posts: 4,014
Received 3,864 Likes
on
1,352 Posts
08-30-2014, 11:13 AM
#42
Drifting
The other concern is that once a tire goes flat, even a low-profile portable jack may be too tall to fit; you'd need an extremely low-profile jack, or some other way to lever your car up high enough to get your jack under. Chunk of 2x4 to drive your flat tire up onto so you can get your jack under it, maybe?
Something similar to Porsche's emergency jack (like the $20 jack below) could provide a lot of peace of mind.
08-30-2014, 04:44 PM
#43
Pro
As stiff as these cars are, if you pick up one corner, you pick up that entire half of the car- so, that 750lbs becomes 1500, and best to give some margin of error above that.
The other concern is that once a tire goes flat, even a low-profile portable jack may be too tall to fit; you'd need an extremely low-profile jack, or some other way to lever your car up high enough to get your jack under. Chunk of 2x4 to drive your flat tire up onto so you can get your jack under it, maybe?
Something similar to Porsche's emergency jack (like the $20 jack below) could provide a lot of peace of mind.
http://www.amazon.com/Torin-T10152-S...s=scissor+jack
The other concern is that once a tire goes flat, even a low-profile portable jack may be too tall to fit; you'd need an extremely low-profile jack, or some other way to lever your car up high enough to get your jack under. Chunk of 2x4 to drive your flat tire up onto so you can get your jack under it, maybe?
Something similar to Porsche's emergency jack (like the $20 jack below) could provide a lot of peace of mind.
http://www.amazon.com/Torin-T10152-S...s=scissor+jack
Looks like a good solution. Thanks.
08-31-2014, 02:36 PM
#44
Burning Brakes
If your wife was caught on a rural road with a flat tire and it had a spare on board, would she change it or call a service to do it for her? It's an honest question, I know my wife would not choose to change a tire on the side of any road.
Fact is, Ferrari started this trend when they realized a huge majority simply call a service to take care of it for them vs. choosing to change their own tire on the side of the road.
Where to put the wheel / tire that came off the car is another huge problem. Few sports cars today have room for a 295-19 or larger wheel except maybe on the roof.
As for the tire pressure system, those have to be replaced more often then not when tires are changed regardless of the goo. I've talked to a few mechanics who are absolutely fed up with those sensors falling apart when they try to remove the valve stem.
Any thoughts on switching over to run-flats?
Fact is, Ferrari started this trend when they realized a huge majority simply call a service to take care of it for them vs. choosing to change their own tire on the side of the road.
Where to put the wheel / tire that came off the car is another huge problem. Few sports cars today have room for a 295-19 or larger wheel except maybe on the roof.
As for the tire pressure system, those have to be replaced more often then not when tires are changed regardless of the goo. I've talked to a few mechanics who are absolutely fed up with those sensors falling apart when they try to remove the valve stem.
Any thoughts on switching over to run-flats?
08-31-2014, 05:51 PM
#45
Hey guys, I just plugged another tire, I monitor my psi once in awhile, and when the it gets low 4 psi below, the warning lights will light up, it gives you time to drive the hell home and plug the damn thing, just don't park there and let it get flat, once the car is moving with decent pressure, its still safe to drive safely to a safe area or home.
These cars as you drive off will tell you if your psi is efficient or not, don't drive off if you see a warning light. I already plug my wife's bmw x3 two years ago and its still running fine, same thing as my Bmw 1M coupe, twice on different occasion a year ago and still no pressure lost.
My 50th edition less than a year old already patch twice and psi is still constant and exact except when its hot, 33 front and 38 rear for me. A plug kit and compressor is a life savor. As for the GTR with run flat remarks, I switch mine to pss first thing the potenza run flat wore out, best thing I ever did to the GTR, should have kept the tires when I got rid of it.
Just past week as I took the tires out and inspect, thats when I found 1 inch nail, so the warning was right on. As I took the front set tires out, I also clean, polish, and seal the wheels while its off, then did the rear wheels as well
Only thing time consuming is cleaning, polishing part. The car is so easy to jack up and dismount the tires.
Most dealers don't want to do the work and gave you all kind of excuse because they want you to buy a new one.
My wife x3 that they deny to plug the tires because its runflat, well its past 2 years and still no problem, thats almost $400 per tires, and the 1M tires are $475 per. All solve with a $13 dollar kit that has 10 plug in it and I only use 6, still 4 left.
No headache, no waiting, no rental, no explaining, no argument about tire prices.
By the way, while we talking about tires anyone wants the GTR oem Bridgestone Potenza run flat rear tires, almost new lol
These cars as you drive off will tell you if your psi is efficient or not, don't drive off if you see a warning light. I already plug my wife's bmw x3 two years ago and its still running fine, same thing as my Bmw 1M coupe, twice on different occasion a year ago and still no pressure lost.
My 50th edition less than a year old already patch twice and psi is still constant and exact except when its hot, 33 front and 38 rear for me. A plug kit and compressor is a life savor. As for the GTR with run flat remarks, I switch mine to pss first thing the potenza run flat wore out, best thing I ever did to the GTR, should have kept the tires when I got rid of it.
Just past week as I took the tires out and inspect, thats when I found 1 inch nail, so the warning was right on. As I took the front set tires out, I also clean, polish, and seal the wheels while its off, then did the rear wheels as well
Only thing time consuming is cleaning, polishing part. The car is so easy to jack up and dismount the tires.
Most dealers don't want to do the work and gave you all kind of excuse because they want you to buy a new one.
My wife x3 that they deny to plug the tires because its runflat, well its past 2 years and still no problem, thats almost $400 per tires, and the 1M tires are $475 per. All solve with a $13 dollar kit that has 10 plug in it and I only use 6, still 4 left.
No headache, no waiting, no rental, no explaining, no argument about tire prices.
By the way, while we talking about tires anyone wants the GTR oem Bridgestone Potenza run flat rear tires, almost new lol