328 Tires for 328 - Ferrari Life
 
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post #1 of 11 Old 11-16-2014, 07:34 PM Thread Starter
 
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Tires for 328

The time is quickly approaching to replace the tires on my 87 328 GTS. Any recommendations? I am a fair weather driver and do not track the car. Grazie Paisanos
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post #2 of 11 Old 11-18-2014, 06:50 PM
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i have bridgestone potenza pole positions on mine for about 5 years and am very happy with them. I have never tracked my car.

http://www.tirerack.com/tires/tires....+Pole+Position



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post #3 of 11 Old 11-28-2014, 08:54 AM
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Lots of recommendations on the"other" Ferrari website, but so far as I know the most often recommended (amongst major brands) are the Michelin Pilot Sport A/S 3; the sizss are 205/55 ZR16 and 225/50 ZR16. At Tire Rack the price for 4 after rebate is $448. These are high speed all-season tires.

If you buy them, let us know how you like them!

Happy Thanksgiving,

Cheers,
Rich
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post #4 of 11 Old 11-28-2014, 07:49 PM
 
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I'm running Michelin Pilot Sport AS3 and am very happy with them. I don't track the car. I drive with spirit (when roads permit) but not super-aggressively. Although I try to avoid driving in the rain, I live in the PNW where rain is an inevitability. Reviews that I found indicated good wet weather performance. As well, I wanted a tire that could be driven on colder days. OK, not really cold but 0 - 5 degrees C / 32 - 40 degrees F.) Apparently, the AS3's will handle that. Jon
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post #5 of 11 Old 11-29-2014, 08:15 PM Thread Starter
 
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thanks to all what about Heat Cycling tires
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post #6 of 11 Old 11-30-2014, 09:10 AM
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You can get a lot of info on heat cycling tires on Google, but essentially the procedure is to break in competition tires by heat cycling them, to ensure longer tire life and more consistent performance, as I understand it. This really only applies to competition uses, as the anticipated stresses on competition tires are far in excess of what one usually expects to achieve on the street. Think about it: F1 tires only last for part of the race, anywhere between 10 laps or so to maybe 30 or so, depending on the compound of the tire.
That translates to something like 30 to maybe 100 miles or so, meaning VERY hard use of the tires. However if you believe the typical reported mileage of many older Ferraris, which is often something like 1000 miles per year or so, the fact is most tires used normally will deteriorate more from age than hard use. Do you intend to drive your car in competition- racing, autocross, or whatever? Then (assuming you & your car are both sufficiently competitive to have minute differences such as heat cycling tires matter at all) it might be worth it. For my money, for normal street driving, more likely no, it isn't worth it- unless you want "bragging rights"- "Well, my tires have been heat cycled...how about yours?"

.So, it's up to you.

Cheers,
Rich
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post #7 of 11 Old 12-09-2014, 07:35 PM Thread Starter
 
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what about nitrogen
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post #8 of 11 Old 12-09-2014, 08:55 PM
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Waste of money unless you get it for free.

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post #9 of 11 Old 12-10-2014, 08:20 AM
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From the internet, “Edmunds.com”:

Should You Fill Your Car's Tires With Nitrogen?
The Green Cap on Your Tire Could Take Green From Your Wallet
Republished: 05/30/2014 (Original Date: 09/04/2012) - by Ronald Montoya, Consumer Advice

Nitrogen is used to fill tires for racecars and airplanes, but isn't really practical in ordinary vehicles. |

A member of the Dodge Challenger owners' forum was buying a new car from a dealer and noticed green valve-stem caps on all four tires. The salesman told him that the tires had been filled with nitrogen, which would keep the tire pressure and temperature more consistent and that it would prevent tire rot from the inside out. It wasn't a free add-on, though. The "nitrogen upgrade" was a $69 item on the supplemental window sticker. Another forum member later posted that his dealer was charging $179 for this same "upgrade."

Some dealerships and tire stores claim that filling your tires with nitrogen will save you money on gas while offering better performance than air. But a closer look reveals that nitrogen has few benefits and much higher costs. For starters, a typical nitrogen fill-up will cost you about $6 per tire.

Why Nitrogen?
The Get Nitrogen Institute Web site says that with nitrogen tire inflation, drivers will note improvements in a vehicle's handling, fuel efficiency and tire life. All this is achieved through better tire-pressure retention, improved fuel economy and cooler-running tire temperatures, the institute says.

This sounds great in theory but let's take a closer look at each of those claims.

∙ Better tire-pressure retention: Over time, a tire will gradually lose pressure. Changes in temperature will accelerate this. The general rule of thumb is a loss of 1 psi for every 10-degree rise or fall in temperature. The institute says that nitrogen has a more stable pressure, since it has larger molecules than oxygen that are less likely to seep through the permeable tire walls.

∙ In 2006, Consumer Reports conducted a year-long study to determine how much air loss was experienced in tires filled with nitrogen versus those filled with air. The results showed that nitrogen did reduce pressure loss over time, but it was only a 1.3 psi difference from air-filled tires. Among 31 pairs of tires, the average loss of air-filled tires was 3.5 psi from the initial 30 psi setting. Nitrogen-filled tires lost an average of 2.2 psi from the initial setting. Nitrogen won the test, but not by a significant margin.

∙ Improved fuel economy: The EPA says that under-inflated tires can lower gas mileage by 0.3 percent for every 1 psi drop in pressure of all four tires. The theory is that since nitrogen loses pressure at a slower rate than air, you are more likely to be at the correct psi and therefore get better fuel economy.
If you are proactive and check your tire pressure at least once a month, you can offset this difference with free air, and you won't need expensive nitrogen. We think this invalidates the "better fuel economy with nitrogen" argument.

For many people, however, this kind of maintenance is easier said than done. Most people either forget to regularly check and top off their tires, or never learned how to do it in the first place. Even Edmunds employees (typically a pretty car-savvy group) were under-inflating or over-inflating their tires, according to a tire-pressure study we conducted a few years ago.

And though tire-pressure monitoring systems (TPMS) now come standard on cars, a 2009 National Highway Transportation Safety Administration (NHTSA) study found that only 57 percent of vehicles with TPMS had the correct tire pressure. That's because most systems are only meant to signal that a tire has very low pressure, not to show that the pressure is optimal.

∙ Cooler running temperatures: When air is pressurized, the humidity in it condenses to a liquid and collects in the air storage tank you use at the local gas station. When you add compressed air to the tire, the water comes along for the ride. As the tire heats up during driving, that water changes to a gas, which then expands, increasing tire pressure. Because nitrogen is dry, there is no water in the tire to contribute to pressure fluctuations.

But this fluctuation in temperature isn't as significant as you might think. A 2008 ExxonMobil study plotted the changes in temperature over the course of various inflation pressures. The lines on the graph were virtually on top of each other. In other words, the change in temperature when using nitrogen was negligible.

∙ Prevent wheel rot: Nitrogen proponents will also point out that water in a tire can lead to wheel rot. A tire engineer who anonymously maintains Barry's Tire Tech, a blog on a number of tire issues, says this isn't really a problem with modern cars.

"Alloy wheels don't really have a problem with water inside the tire," the engineer writes in a post on nitrogen inflation. "They are coated to keep aluminum from forming aluminum oxide, which forms a crust, which isn't very attractive. But even then, this crust protects the aluminum from further corrosion from the water."

Where wheels have problems is when the aluminum alloy contacts steel, such as the steel spring clip used on wheel weights. It's a particular issue when salt is present, the engineer writes. "But this problem is totally independent of the inflation gas," he says. "Steel wheels only have a problem if the paint is damaged."

∙ Cost and Convenience: Let's say a person bought a set of tires at Costco, a place that uses nitrogen to fill all the tires they sell. If he needs to top off the tires with more nitrogen, he won't be able to go to just any gas station. He can use regular air if there is nothing else available, but that would dilute the nitrogen in the tires. He'll have to go back to Costco and wait until the tire technicians can attend to the car. On a busy day, he could be there awhile.

Nitrogen is free at Costco and at some car dealerships we called, but these are rare cases. We called a number of tire shops that carry nitrogen and found that the prices for a nitrogen fill ranged from $5-$7 per tire. Assuming our consumer was diligent about checking his tires monthly, he could potentially spend about $84 a year on nitrogen alone per tire. Compare that to the most gas stations, where air is free or a 75-cent fill-up for all four tires at the most.

Finding tire shops with nitrogen could be an issue, too. We called a number of large chains, including America's Tire Co., Discount Tire and Walmart. None carried nitrogen.

Is Nitrogen Worth It?
The air we breathe is made up of 78 percent nitrogen, 21 percent oxygen and a few other elements. To get the desired benefits for tires, nitrogen needs to be at least 93 percent pure, according to nitrogen service equipment providers quoted on Tirerack.com. So we're basically talking about adding an extra 15 percent of nitrogen and getting rid of as much oxygen as possible.

Based on cost, convenience and actual performance benefit, we don't think nitrogen is worth it. A much better use of your money would be to buy a good tire-pressure gauge and check your tires frequently. This is a good idea even if you have a tire-pressure monitoring system in your vehicle. The warning lights aren't required to come on until you have less than 25 percent of the recommended tire pressure. Having the correct tire pressure will get you many of the benefits of using nitrogen and will ensure that your tires last longer.

To find a dealership that knows how to treat shoppers right, please visit Edmunds.com's Dealer Ratings and Reviews.
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post #10 of 11 Old 12-10-2014, 10:17 AM
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these are great tires:


Bridgestone*Potenza RE-11

225/50R16 Fronts
245/45R16 Backs

http://www.tirerack.com/tires/tires....=40-11246221-2

- Brett

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post #11 of 11 Old 12-10-2014, 07:36 PM Thread Starter
 
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What is the difference between Bridgestone RE11s and RE 11As
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