Run flats - any alternatives?

Bonkers

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I was asked this and I have no clue as how to answer. On the new SRTs tirerack offers two standard sets of tires, one summer, one year round, both run-flats. If you are not a fan of run flats is there another all season alternative?
 

Viperfreak2

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The Ferrari Enzo rear tires (Bridgestones) will work. They should be sticky and ride better. They are 345 35 19's. The key difference is the 35. I have the opinion that it won't make much difference to the look or gearing (making the already silly 3.07 worse) SO, I was thinking (in case I was wrong) at the same time I switched to the Enzo rears, I would put Moton shocks (lower the car) and 3.55 rear gears. I haven't got a clue what to do with the fronts yet.
 

Skip White

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You will get about a half inch taller tire, and as Viperfreak said, lower the car a bit to rebalance.

If you are never planning to raise the Hp on your car more than 50 HP then the 3.55 will be fun, and put you equal to 3.33 car with stock tires.

I'm working on a traction solution for the SRT. I'll talk about it in the next few days. It is not very expensive for what it will acheive. The presant solutions out there don't come close to what I've come up with.

Skip White
 

Skip White

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Well Viper D, I should share, but I will start a post for all to see, since exposure may be low since it's sort of unrelated.

Skip
 

Skip White

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Re: Here\'s one...

My guess is the conventional style tire would have a bit better traction and ride, as the sidewall is not as rigid. Thats the secret behind a runflat. A don't think the handling would be much better, as the conven. tire is still very stiff on the sidewall.

Straight ahead traction is allways improved if the sidewall has more flex to it. I would also say the conv. tire is a bit lighter, and a bit les expensive.

Skip W.
 

Guibo

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Re: Here\'s one...

A non run-flat tire should improve ride, straightline traction, and handling as well. Because of the more rigid structure, a runflat is heavier. And this means more unsprung weight. Dodge claims that the Competition Coupe is lighter at each corner by about 20 lbs, with the swap to Hoosier racing slicks and the BBS wheels. How much of this is down to the tires, I don't know. But GM cites a weight savings of about 4 lbs at each corner for the Z06, compared to the runflat-equipped standard 'Vette.
C&D tested standard Corvettes on stock runflats and then swapped them out for the Z06's tires. They selected the twistiest sections of DaimlerChrysler's proving grounds and got these results (among others):

Base C5, stock tires
Autocross course, seconds: 59.0
Racecourse segment: 54.3

Base C5, Z06 tires
Autocross course: 57.4
Racecourse segment: 51.4

With the Z06 tires, it picked up 3.56 mph average on the slalom and 2.0 mph in the emergency lane change maneuver. The MSRC-equipped C5 on touring mode picked up .06g on the skidpad due to the tires alone.

You can read more of that test here:
http://www.caranddriver.com/article.asp?section_id=4&article_id=7004&page_number=1
 
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