305/680/18 Square setup
Hello friends and fellow enthusiasts,
I am going to be doing the setup in the title, here are some pics. Wheels are 18x10.5 +20. With no spacer the tire are contacting here https://scontent-mia3-1.xx.fbcdn.net...cd&oe=5CFFF3E8 With the 15mm spacers hopefully everything should clear. Just hoping I dont need to start cutting things too drastically. https://scontent-mia3-1.xx.fbcdn.net...69&oe=5CC1534F https://scontent-mia3-1.xx.fbcdn.net...78&oe=5CBE7D5F https://scontent-mia3-1.xx.fbcdn.net...37&oe=5CC4F4A4 |
Welcome- I hope you realize those Continental racing tires are not suitable for the street. If your G is a track-only car, you'll have plenty of development to get those race tires to function properly.
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In addition, it’s no wonder why they’re rubbing.... they are, at minimum, a whole inch taller than the tallest street size tire you should be running (lest you kill your rear gear advantage with these truck height tires). Your better bet would be 305/640-18 if such exists. How’d you decide on 680s to begin with? |
Originally Posted by MicVelo
(Post 10981959)
In addition, it’s no wonder why they’re rubbing.... they are, at minimum, a whole inch taller than the tallest street size tire you should be running (lest you kill your rear gear advantage with these truck height tires). Your better bet would be 305/640-18 if such exists. How’d you decide on 680s to begin with? |
Originally Posted by dkmura
(Post 10981951)
Welcome- I hope you realize those Continental racing tires are not suitable for the street. If your G is a track-only car, you'll have plenty of development to get those race tires to function properly.
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Here's a vid of me on the current 245 19 sumitumo htrzIII's
Enjoy |
Originally Posted by Turbo?
(Post 10981963)
Track set of tires... I am going to put on the hotchkis swaybay, guessing all the way stiff. play with disconnecting the rear, then perhaps coilovers
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Originally Posted by dkmura
(Post 10981971)
OK- so you have a separate set of tires to take to and from the autocross site? And have you ever driven on a set of race tires? Otherwise, depending on compound, those tires car be slick as **** until they get some heat into them. Not sure how you're going to warm them up in the limited runs solo competition mandates.
What coilovers are popular for the trackday crowd? |
Rears, looking decent will see how bad it rubs in cornering
https://scontent-mia3-1.xx.fbcdn.net...05&oe=5CBB2759 https://scontent-mia3-1.xx.fbcdn.net...4a&oe=5CFC956E |
For SCCA racing, I use Koni 2812s with Eibach race springs. What class do you run an otherwise stock car on race slicks?
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Originally Posted by dkmura
(Post 10982013)
For SCCA racing, I use Koni 2812s with Eibach race springs. What class do you run an otherwise stock car on race slicks?
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Originally Posted by Turbo?
(Post 10982015)
I think we both know it's not a classed car :) I just run with a vette club and wanting to keep up with fast guys as cheaply as possible
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Originally Posted by dkmura
(Post 10982071)
I have no way of knowing what kind of class you're running in. We have everybody from experienced SCCA National solo competitors on here to those who have very little practical experience. I try to provide a little help to everyone I can and was the reason I asked that question in the first place. Glad you could get some cheap race tires, but it's difficult to suggest how to optimize their use.
Thanks again I appreciate the info! |
In road racing, we're often constrained by the rules. In SCCA Touring 3, Z33s must run a 245 profile tire and 700# max springs. My HR is also mandated to run 37 mm restrictors and weight 3275# for 2019. I've played with spring rates and swaybar settings and will sometimes go to other specs (T1) when I get frustrated with the rules.
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Id get some arp lugs to be on the safe side. Autox is probably fine, but on track id run a different wheel and get rid of the spacers.
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Tried it out and it worked decently with a bit of rub. Will be taking the front fenders off and putting some used ones on which i will cut, until i sell the car. *Smoke is from tires
https://cimg6.ibsrv.net/gimg/my350z....9162f38c8f.jpg https://cimg2.ibsrv.net/gimg/my350z....dcf8d9213f.png https://cimg5.ibsrv.net/gimg/my350z....e2f7663e03.png https://cimg6.ibsrv.net/gimg/my350z....0832c7a9ad.png |
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