mr_han_solo Posted December 7, 2015 Share Posted December 7, 2015 I'm wanting to do a wheel/tire combo upgrade on my 1972 240z for the car shows. My 240z has the early 1970s hot rodder look and my goal it so but some of the steel "nascar" looking wheels and put slicks on them. I'm shooting for the GT40 or Cobra look that was prevalent in the early 70s. Locally, I have found a set of used 27/10/15 Hoosier slicks (item # 10610 https://www.hoosiertire.com/pdfs/speccat.pdf). I was wondering if these would fit under the 240. Like I said before these would be for show only so as far as driving around I would put my current wheels back on the car. I'm really just needing to know if these are going to rub going on and off of a car trailer and driving around the show until I get to my spot. I have done a coil over conversion, and unfortunately I did keep my perches intact. Dunno if this is going to effect the wheel/tire though as it seems they will sit lower than the tire sidewall itself. I have done some reading and I see where some (circle track guys) have mounted their 10" tires on 8" wheels. Do you think this would be a better option for my setup? Here were the wheels I was looking at: http://www.uswheel.com/collections/fwd-drift-series/products/fwddaytona-gold Looks like the only bolt pattern they have left is 4x100 though so I may be out of luck by going with them. I have checked out the Diamond Star wheels before, and they are looking like the ones I'm going to have to go with. Hoping someone here can help me. http://imgur.com/a/5qHQo Quote Link to comment Share on other sites More sharing options...
74_5.0L_Z Posted December 7, 2015 Share Posted December 7, 2015 Those will be way too tall. Look at the Hoosier 23.0x9.5-15 or the Avon 23.0x10.5-15. About the tallest tire you can hope to fit on a non-lower 240Z is about 24.5 to 25 inches tall. Quote Link to comment Share on other sites More sharing options...
jhm Posted December 10, 2015 Share Posted December 10, 2015 If you decide to go with Hoosiers, I'd try buying used before springing for new tires. You'll save yourself a bundle, and you can try your fitment without spending a bunch of money on something that may not work in the long term for your application. I've bought from this guy many times, and have never been disappointed: http://stores.ebay.com/Race-Tires-USDRRT?_trksid=p2047675.l2563 Quote Link to comment Share on other sites More sharing options...
mr_han_solo Posted December 23, 2015 Author Share Posted December 23, 2015 Well after doing some more searching I found some vintage Goodyear Bias ply tires for free. The tire size is G70-15. Now after doing the conversion this comes to 215-75-15 or a 225-70-15 in modern size. In turn I'm currently running 235-60R-14 on the tires I use currently. Is this new tire still going to be too tall? Quote Link to comment Share on other sites More sharing options...
auxilary Posted December 23, 2015 Share Posted December 23, 2015 (edited) Multiply 235 x 0.6, 225 x 0.7, and 215 x 0.75 to get your tire wall height in MM. Add 12.7mm to 235 tire size to comp for 14" rim. Or just use tires.Com tire size calculator Edited December 23, 2015 by auxilary Quote Link to comment Share on other sites More sharing options...
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