| Author | Message | ||
| Dennis (Bighead)
Junior Member Username: Bighead Post Number: 161 Registered: 2-2003 |
Craig, Mitch is correct. Do his math, and you'll have lots of options. Or, ping my privately and I'll email you my excel spreadsheet that I did for a friend with a 348 that provides all the sizes that fit (mathematically). As for your question about rim width, click on "specs" at tirerack.com and you'll see a couple of columns. One is the "ideal" width of the tire; this is the one on which the tire is mounted to compute the other dimensions listed in the table; the other column lists permissible widths on which the tire can be safely mounted. vty, --Dennis | ||
| Tom Jones (Ferrarioldman)
Junior Member Username: Ferrarioldman Post Number: 133 Registered: 6-2002 |
Has anybody tried any Sumitomo's on their 348? | ||
| Craig A (Milo)
Member Username: Milo Post Number: 307 Registered: 4-2003 |
Thanks Mitch, One other question. Where does the width of the rim compared to the width of the tire come into play? I assume that is the reasoning behind the "no wider than the 235 in the front" comment? I also assume that I can't go with a tire less than 215 on the front. Is this correct? | ||
| Mitch Alsup (Mitch_alsup)
Member Username: Mitch_alsup Post Number: 830 Registered: 4-2002 |
Craig: go to tire rack and get to max performance tires; click on specs for Goodyear Eagle F1 D3s. This gives you the specs for your current tires: 215/50-17 F rolling radius 25.6 255/45-17 R rolling radius 26.1 What you need to look for is a set of tires with those rolling radii (this preserves the ride height and suspension handling characteristics) and the same relative footprint (215/255 = .843). I can find GY D3s, Kumhos, Yokohama AVS sports and several others that would (barely) fit as: 235/45-17 F 285/40-17 R footprint ratio 235/285 == .825 If you are willing to drop back to ultra-high performance tires (from max performance tires) there seems to be plenty of choices. Don't wory about that last 0.25" of rolling radius. Nor should you worry about the last 0.05 in the front/read footprint ratio, as this can be adjusted with air pressure tweeks. I would not go wider than 235 at the front, nor wider than 285 at the rear. Otherwise some of the tread may not interact with the road due to the wheel beadwidth. | ||
| Craig A (Milo)
Member Username: Milo Post Number: 306 Registered: 4-2003 |
Dennis, Help me out as I'm trying to learn here... I have the Expedias in my garage already bought so the decision is made already... but going back and doing some research I found that the Expedias are the only tire available for the 348's OEM wheels. If I were to go with a the Protenza tires which size would I have to purchase? The current tires (rear) are 255/45ZR-17 and that is what the owner's manual says to buy and that is what the Expedias are. | ||
| Dennis (Bighead)
Junior Member Username: Bighead Post Number: 159 Registered: 2-2003 |
Craig, I was too lazy to type out the names. But what I wrote is still true - the Expedia S-01 was superceded by the Potenza S-02, then the Potenza S-02 Pole Position, now the Potenza S-03 Pole Position. Each was, at the time of its introduction by Bridgestone, the top of the line ultra-high-performance/max-performance street tire. Bridgestone may still have some NOS (new old stock) Expedia S-01s available, but I dunno if they still manufacture them - the S-01 was introduced nearly 15 years ago, so the design (tread and compound) is pretty dated. Some larger stores might still sell sets of them to buyers looking for "OEM" rubber for their 10-15 year old car, even if tire technology has moved on. If they were really, really cheap, and if you don't care that much about achieving maximum grip and/or greater treadwear, who cares? According to a quick glance at the Tire Rack, S-01s may or may not be available, but are roughly $50-$75 cheaper apiece than modern rubber. You decide.... vty, --Dennis | ||
| Craig A (Milo)
Member Username: Milo Post Number: 303 Registered: 4-2003 |
Are you sure it isn't the Protenza you are thinking about? On the Bridgestone site there is no mention of an Expedia S-02 or S-03. The Expedia also comes up as OEM for the Ferrari 348. | ||
| Dennis (Bighead)
Junior Member Username: Bighead Post Number: 158 Registered: 2-2003 |
Craig A wrote: >I ended up buying Bridgestone Expedia S-01 from the local shop where my mom works (couldn't beat that deal anywhere). The set included two fronts, one left rear and one right rear. ________ Craig, be a bit wary. I don't think Bridgestone has manufactured the S-01 for several years now -- it was superceded by the S-02, and THAT was superceded by the S-03 (though S-02s can still be found). Though they could be fairly old, Craig, I suspect that they'll still be plenty safe - you're just losing out in terms of grip. And, from what I recall, treadwear is pretty poor on the S-01. vty, --Dennis | ||
| Craig A (Milo)
Member Username: Milo Post Number: 302 Registered: 4-2003 |
Yes Sport Auto sells tires. And they can mount and balance them as well. I was just shopping for tires and asked Tom and he said "Yep we sell tires". I ended up buying Bridgestone Expedia S-01 from the local shop where my mom works (couldn't beat that deal anywhere). The set included two fronts, one left rear and one right rear. Now to get them mounted. Tom, I'll be calling soon.  | ||
| Vincent (Vincent348)
Member Username: Vincent348 Post Number: 741 Registered: 4-2003 |
Dr. I don't know how you drive, but the importance of good tires cannot be emphasized enough. Be careful, especially if you push the car once in a while. Vincent. | ||
| Drstranglove (Drstranglove)
Member Username: Drstranglove Post Number: 620 Registered: 4-2003 |
Well, I got it patched. Guess we will see if that works till I can get a new set of tires..... DrS | ||
| Jeffrey Wolfe (86mondial32)
Member Username: 86mondial32 Post Number: 314 Registered: 5-2003 |
I always carry a patch kit and small pump. Unless it is sidewall I trust a plug everytime. It's more work but you can usually plug the tire on the car and as long as you cut it off flush it stays in place with no waiting to see if the fix a flat is going to be able to seal the hole. More than once I ahve used the can and a few miles down the road.. FLAT again. | ||
| PSk (Psk)
Member Username: Psk Post Number: 602 Registered: 11-2002 |
Hmmm, I ran Yokahama A008R's a long time ago and they have very stiff side walls. To cut a long story short I got a flat (we had put an inner tube in the tyre because of porous wheel casting) and the only reason I knew was because the inner tube blew with a nice big bang. The car drove just fine. I stopped and the wheel and tyre were too hot to touch ... but not deflated like a normal flat tyre. Thus sort of run flat ... hahahahahaha Fantastic tyre they used to be ... guess there are a lot better now. The only problem with them is that they do not make a smooth ride, and they are noicy ... but who cares on the race track. Pete | ||
| Eric Stringer (Vette79)
New member Username: Vette79 Post Number: 11 Registered: 12-2002 |
run flats are not a gimmick.. they do work... however the tires ive seen in the run flat category are not very grippy tires... its a trade off... performance for the run flat technology.. if you drive your car to its limits and enjoy strong cornering capabilities, then i would stay away from run flats. if you baby your car and use it mainly as a cruiser and dont push it to its limits often then they might not be a bad idea. that is if you ever have to use them. | ||
| JT (Mightymagician)
Junior Member Username: Mightymagician Post Number: 109 Registered: 11-2002 |
are reinforced sidewall or "run-flat" tires not a good idea for these cars? or is that just a marketing gimmick (have no experience with them myself)? | ||
| Drstranglove (Drstranglove)
Member Username: Drstranglove Post Number: 616 Registered: 4-2003 |
Hahahahahaha!!!!! (At Jeff) DrS  | ||
| Jeff B. (Miltonian)
Member Username: Miltonian Post Number: 403 Registered: 12-2002 |
By the way, according to the Owners Handbook, if you have inflated your flat tire using the "special bottle", "...the car must be considered to be in an emergency situation (maximum permissible speed 150kph) and the tire must be replaced as soon as possible." That's right, they don't want you to exceed 93MPH with a tire filled with slush!!! How much do you suppose Ferrari wants for a new bottle of Fix-a-Flat with a horsie on the can? | ||
| Jeff B. (Miltonian)
Member Username: Miltonian Post Number: 402 Registered: 12-2002 |
Well, what are you going to do in your 348 if a tire goes flat, keep driving and ruin a rim? Ferrari supplied Fix-a-Flat instead of a spare tire. I carry two cans, an electric inflator, and a patch/plug kit. So far, haven't had to use any of them. Modern tire technology is wonderful. Used to be that tires would go flat almost instantly if they picked up a nail. Now they hold air almost indefinitely as long as the nail stays in the tread. | ||
| Ernesto (T88power)
Intermediate Member Username: T88power Post Number: 1575 Registered: 2-2001 |
Just call Tire Rack and order two tires. Ernesto | ||
| Drstranglove (Drstranglove)
Member Username: Drstranglove Post Number: 614 Registered: 4-2003 |
Does anyone know if Sport Auto of Foreign Cars Ital sells tires???? Yep, it is the rear right tire....Cant wait to see what this cost me. DrS | ||
| "The Don" (The_don)
Senior Member Username: The_don Post Number: 5613 Registered: 8-2002 |
Make sure they clean the rims when the tire comes off. That crap will eat wheel finish faster then a 600 sumo wrestler at a all you can eat sushi buffet. | ||
| Dave Goldman (Dave328)
Junior Member Username: Dave328 Post Number: 206 Registered: 11-2002 |
You didn't "ruin" it, but you will NEVER get it balanced. Been there done that on a car at work that the customer filled with tire goop as a preventative measure and then complained about tire vibrations. Dave | ||
| Patrick Denonville (Arizonaguy)
Member Username: Arizonaguy Post Number: 296 Registered: 4-2003 |
Bue 2 new tires...If its on the front buy 2 new fronts, if it's in the rear buy 2 new rears so they wear evenly. | ||
| Drstranglove (Drstranglove)
Member Username: Drstranglove Post Number: 612 Registered: 4-2003 |
I figured as much. I had a pin prick leak and actually found a hunk of glass in the tire. Like a moron, I pulled it out and then the pin prick leak got 10x worse..... I have no idea what to do now. Does Sport Auto or FCI have tires???? Might as well get a new one, huh?? Hope it makes the 100 miles or so to Greensboro tomorow.... DrS | ||
| rob guess (Beast)
New member Username: Beast Post Number: 34 Registered: 5-2003 |
you did not do it any good, lets just say that. That stuff is a mess to deal with and when you take it to the shop to get it fixed, the tire tech will cuss you up and down because of all of the crap sloshing around in there. The quicker you get it properly fixed the better off you will be. | ||
| Ken (Allyn)
Intermediate Member Username: Allyn Post Number: 1032 Registered: 10-2001 |
Most likely. | ||
| Drstranglove (Drstranglove)
Member Username: Drstranglove Post Number: 611 Registered: 4-2003 |
Did I just ruin my tire???? DrS |