Race/street tires

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Race/street tires

Postby rsrdoug » Mon Jul 03, 2017 4:29 pm

In my restoration I of course need new tires. The Yokohama A008R are long past their life. I'm running 914 alloy rims with 195-60/15 in front and 205-60/15 in back. The car really needs tall tires because of the poor camber control inherent in the suspension but they don't make them in performance tires anymore. The closest thing I have found is the Toyo Proxes R1R in 50s not 6os. Anyone have a better idea?
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Re: Race/street tires

Postby RS-60 mark » Tue Jul 04, 2017 9:43 am

As well, my Bridgestone RE960 Pole Positions have pretty much run their course and I'm interested in finding an equivalent performance replacement too (185-65/15 front, 205-65/15 rear).
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Re: Race/street tires

Postby RS-60 mark » Thu Mar 29, 2018 4:23 pm

Bump

Anybody have a recommended tire for the sizes mentioned above? I'll be looking at cord before long on my 185-65/15 fronts. As previously reported, everyone's favorite Bridgestone RE960 has been discontinued in that size.
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Re: Race/street tires

Postby egrant5329 » Sat Mar 31, 2018 5:49 am

I am sure you have done exhaustive searches already, but I think in the sizes we are running that style tire will be hard to come by these days. If you could get a 205/60/15 to work up front Yokohama ADVAN A048 might be an option. 24.6" diameter and streetable track/competition. I suspect they would rub fiercely, but 186/65/15 are 24.4" and 195/60/15 are 24.2" diameter. I am sure Carey, Greg or Daniel has probably looked at the issue before, but it makes me wonder how much work would be involved with modifying the fenders to accept bigger wheels.
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Re: Race/street tires

Postby RVosari » Sat Mar 31, 2018 7:41 am

Wider...no more than this !
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Re: Race/street tires

Postby egrant5329 » Sat Mar 31, 2018 8:03 am

Carey was working on a spec racer 550 spyder at one point. http://www.spyderclub.com/viewtopic.php ... cer#p65383
It had a front air dam and ground effects. They made changes for wider wheels. The extra hump doesn't look right to me, but if you're racing it would work.
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Re: Race/street tires

Postby RVosari » Sat Mar 31, 2018 4:21 pm

The finished car...
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Re: Race/street tires

Postby egrant5329 » Sun Apr 01, 2018 4:16 am

To me I think the front fenders look pretty good. It's hard to see the back, but it doesn't look like it was flared any in the photo. Although it looks like the lip is gone on the rear.
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Re: Race/street tires

Postby RVosari » Thu Apr 05, 2018 5:09 pm

This car was done by a young designer in Montreal developing his automotive-portfolio. If you have a good eye or good templates, it's an easy way to modify bodywork to fit around mechanical components ...

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Re: Race/street tires

Postby DannyP » Fri Apr 06, 2018 6:58 pm

That car looks nice. I'd love a slightly flared car like that with 205/16 with 50 or 55 series tires. The right circumference and amount of rubber on the ground, at least in the front. Slightly wider in the back, 215 or 225 would be sweet. How about Greg makes 6 and 7 inch 16s in his Vintage 190 rims. Oh man that would be sweet.

There are lots of sticky tires in those sizes.
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Re: Race/street tires

Postby Anta » Sun May 06, 2018 8:44 am

RS-60 mark wrote:Bump

Anybody have a recommended tire for the sizes mentioned above? I'll be looking at cord before long on my 185-65/15 fronts. As previously reported, everyone's favorite Bridgestone RE960 has been discontinued in that size.


Not sure how easy to get out there but Avon CRZ66 is what I have on my Spyder they are around £200 each though! Road legal classic rally tyres, not bonkers sticky and I have not seen excessive wear. Period tread pattern and tall sidewall.

I run 175/70/15 with around 160bhp. No issues. Best. Ant
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Re: Race/street tires

Postby Anta » Sun May 06, 2018 8:47 am

You can see the side of them on the photo here....

viewtopic.php?f=1&t=15323&start=75
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Re: Race/street tires

Postby DannyP » Sun May 06, 2018 1:59 pm

I have Yokohama Avid Envigor and they are H rated in our sizes. They are listed as High Performance All Season at Tire Rack. Treadwear 560, traction A, temperature A.

I have 1000 miles on them and they seem decent but I've not done any track time or autocross with them. Still sorting the new car but very close to being finished.

185/65 F and 205/60 R on Greg's Vintage 190 aluminum wide-5 wheels which are superb looking and LIGHT.

I also have a set of 4 steel 5.5" wheels. I need to move the centers for the front 2 and get some sticky sneakers.
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Re: Race/street tires

Postby RS-60 mark » Mon May 07, 2018 10:00 pm

Thanks Danny. I'll go with your recommendation on the tires.
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Re: Race/street tires

Postby DannyP » Tue May 08, 2018 3:25 am

You're welcome. Those Avon's do look attractive, though.

For track use, they make sticky stuff in 205/50 or 55/15 and 195/50 or 55. That's what I'm looking into.

In 195/55 and 205/55 Dunlop Direzza DZ102 and Kumho Ecsta PS31. Treadwear around 400 so stickier and Ultra HP Summer.
In 195/50 and 205/50 there is Yoko S.Drive and they are treadwear 300.

If you can get 205/50 to fit all around, Bridgestone, Dunlop, Falken, Kumho, Toyo, and Yokohama all make 200 treadwear Extreme Performance summer tires. I'd restrict these to track use, they have some tread-lines, but they are pretty close to being slicks. Technically legal, but probably unwise if it rained LOL.

Dedicated track tires are around 170-210 each, but in 205/50/15. Many manufacturers, very sticky. Hoosier even makes a rain tire. Do a search on tirerack: Autocross 205/50/15 and they all come up.

https://tires.tirerack.com/search?asug= ... %2F50%2F15
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