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HarryD's Avatar
 
Join Date: May 2002
Location: Portland, Oregon
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Autocross Tire Replacement

I think it is time for some new Autocross rubber. The date code on my Toyo RR's are 2012. A bit long in the tooth?

I do not need new so I am going to my local trackside tire supplier and going to get a set of takeoffs. He thinks he may has a set of Hoosier SM's in my size.

Thoughts?
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Harry
1970 VW Sunroof Bus - "The Magic Bus"
1973.5 911T Targa - "Smokey"
2003 BMW Z4 3.0i
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Old 03-12-2019, 08:34 PM
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Hoosier SM’s (Spec Miata specific tire) are a special compound R7, only size is 205/50-15. When I had my Spec Miata I was getting good used ones from Planet Miata in Kingston PA, he builds full turn key race cars and customer cars, plus track support at races. Can also try John Berget tire in Wisconsin, he deals in used race tires, was just at his warehouse picking up a set of 18” P-Zero slicks and he had SM’s in his inventory.
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Ed
'86 911 Coupe (endless 3.6 transplant finally done!)
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Last edited by 175K911; 03-13-2019 at 03:31 AM..
Old 03-13-2019, 03:26 AM
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Jesus I go through two sets of tires per season
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Old 03-13-2019, 05:56 AM
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Quote:
Originally Posted by 175K911 View Post
Hoosier SMís (Spec Miata specific tire) are a special compound R7, only size is 205/50-15. When I had my Spec Miata I was getting good used ones from Planet Miata in Kingston PA, he builds full turn key race cars and customer cars, plus track support at races. Can also try John Berget tire in Wisconsin, he deals in used race tires, was just at his warehouse picking up a set of 18Ē P-Zero slicks and he had SMís in his inventory.
Ed. Thanks. The size is correct for me and my local trackside guy has them as well at an excellent price.
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Harry
1970 VW Sunroof Bus - "The Magic Bus"
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Old 03-13-2019, 11:28 AM
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Originally Posted by Driven97 View Post
Jesus I go through two sets of tires per season
Unlikely for me who does 2-3 autocrosses a month for 8 months.
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Harry
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Old 03-13-2019, 11:29 AM
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Ed. Thanks. The size is correct for me and my local trackside guy has them as well at an excellent price.
That's definitely the way to go, New P-Zero slicks at $400 each or slightly used scrubs for $250 for a set of 4.

I was paying $200 for a nice set SM7's and they'd be good for 2 weekends at the track for me.
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Ed
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Old 03-13-2019, 04:30 PM
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Quote:
Originally Posted by HarryD View Post
I think it is time for some new Autocross rubber. The date code on my Toyo RR's are 2012. A bit long in the tooth?

I do not need new so I am going to my local trackside tire supplier and going to get a set of takeoffs. He thinks he may has a set of Hoosier SM's in my size.

Thoughts?
Takeoffs are fine for practice or if you just want to hoon around. If you want to win you want fresh rubber. Takeoff tires were taken off for a reason and it is usually because they were 2-3 seconds slower per lap. Heat cycled out and still have tread, just rapidly fading grip.

JMHO
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Old 03-13-2019, 06:49 PM
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Originally Posted by Cajundaddy View Post
Takeoffs are fine for practice or if you just want to hoon around. If you want to win you want fresh rubber. Takeoff tires were taken off for a reason and it is usually because they were 2-3 seconds slower per lap. Heat cycled out and still have tread, just rapidly fading grip.

JMHO
Totally agree that new tires are the way to go if I had a car that could actually win my class. My 911T is underpowered against my competition so I am going for a big fun factor to get the most out of what I got.
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Harry
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Old 03-14-2019, 09:53 PM
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Those who don't know Harry should know that his fun factor wins a lot in his class. He's a very good driver.
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Old 03-15-2019, 07:54 AM
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Harry, I'm with you on the fun factor. When I was running cheap SM takeoffs on my Spec Miata I enjoyed running with the folks who spent considerably more than me on their race cars. Likewise with my 911, I can't afford new tires every weekend or to pay someone else truckloads of $$ to build cars so when I can build my own car, my own engine and do my own corner balance and alignments thanks to friends like KTL who lend me their scales and I can still run with people who have 3x and 4x the money in their cars, that's my fun factor.
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Ed
'86 911 Coupe (endless 3.6 transplant finally done!)
'14 Jeep Grand Cherokee 3.0 Turbodiesel (yes they make one)
'97 BMW 528i (the sensible car, bought new)
'12 Vintage/Millenium 23' v-nose enclosed trailer
Old 03-15-2019, 09:38 AM
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Quote:
Originally Posted by kent olsen View Post
Those who don't know Harry should know that his fun factor wins a lot in his class. He's a very good driver.
Kent: Thanks for the complement. Will I see you out there this year? Thinking about a HPDE with BMW ACA on 5/2 as well.
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Harry
1970 VW Sunroof Bus - "The Magic Bus"
1973.5 911T Targa - "Smokey"
2003 BMW Z4 3.0i
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Old 03-15-2019, 12:11 PM
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Quote:
Originally Posted by 175K911 View Post
Harry, I'm with you on the fun factor. When I was running cheap SM takeoffs on my Spec Miata I enjoyed running with the folks who spent considerably more than me on their race cars. Likewise with my 911, I can't afford new tires every weekend or to pay someone else truckloads of $$ to build cars so when I can build my own car, my own engine and do my own corner balance and alignments thanks to friends like KTL who lend me their scales and I can still run with people who have 3x and 4x the money in their cars, that's my fun factor.
Hopefully I will be successful. Waiting on my tire guy. Says we may have some takeoffs soon.
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Harry
1970 VW Sunroof Bus - "The Magic Bus"
1973.5 911T Targa - "Smokey"
2003 BMW Z4 3.0i
2009 MB C300
Old 03-15-2019, 12:12 PM
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