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January 8th, 2004, 07:13 PM
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New rim/tire purchase
I'm looking into buying some new rims and tires and just wanted some feedback. For a 86' T Type.
Centerline Convo Pro's 15x8.5 for the rear with 3-3/8" Backspace 15x7 for the front with 3-3/8" Backspace For the front tires I want to get 235/60/15. For the rear tires, the car previously has had M/T ET Streets on a rim with unknown backspace. I think its a 15x8 rim. The tires were 28x11.5. They fit fine but would rub some on the outside when making slow turns and on launches. I'm looking at getting some 275/60/15 Nitto drag radials as they tend to be a little smaller than other tires and I'm hoping they won't rub. I'm also considering getting another set of ET Streets or the new M/T ET street radials. For these I may step down to 275/50/15. The 275/50 is supposed to be more like a 26x11.5 so I assume these won't rub as much since they are not as tall as the 28x11.5 although they are the same width. Does that make sense or will they still rub the same? Would air bags help? Does anyone agree/disagree with the above? I just want to be sure before I purchase anything. I''d prefer the 28" tire for looks but 26" is ok and I still have the 28x11.5 ET Streets for the track.
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'86 White T Type : Minor upgrades: 109 block with billet mains, Wiseco pistons, K-1 rods, T&D shaft system, Weber 224/224 roller cam, GN1 heads, Eagle crank, CPT70BB, now with a PTC 9.5" nonlock race converter. 10.19@129mph with 22lbs boost, 1.47 60ft. '87 Regal Sleeper with LC2 : 12.7@106.4mph on stock setup. Now with a TE44 and 50# injectors. '87 GN : ATR SS dual 3", THDP, the rest pretty much stock except for some chrome. '06 Trailblazer SS. Stock except for Corsa exhaust.     
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January 9th, 2004, 05:57 PM
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Any advice from anyone about potential rubbing? I want to purchase these tomorrow.
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'86 White T Type : Minor upgrades: 109 block with billet mains, Wiseco pistons, K-1 rods, T&D shaft system, Weber 224/224 roller cam, GN1 heads, Eagle crank, CPT70BB, now with a PTC 9.5" nonlock race converter. 10.19@129mph with 22lbs boost, 1.47 60ft. '87 Regal Sleeper with LC2 : 12.7@106.4mph on stock setup. Now with a TE44 and 50# injectors. '87 GN : ATR SS dual 3", THDP, the rest pretty much stock except for some chrome. '06 Trailblazer SS. Stock except for Corsa exhaust.
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January 9th, 2004, 07:11 PM
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old rear rims
What kind of wheels did you have on the back that didnt rub?
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Thanks John Martin 86 Buick T-type 9.81 @ 137 6.24 @ 111 1.42 60ft
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January 9th, 2004, 08:39 PM
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They are GNX like rims with the ET Streets mounted on them. Not sure on the make.
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'86 White T Type : Minor upgrades: 109 block with billet mains, Wiseco pistons, K-1 rods, T&D shaft system, Weber 224/224 roller cam, GN1 heads, Eagle crank, CPT70BB, now with a PTC 9.5" nonlock race converter. 10.19@129mph with 22lbs boost, 1.47 60ft. '87 Regal Sleeper with LC2 : 12.7@106.4mph on stock setup. Now with a TE44 and 50# injectors. '87 GN : ATR SS dual 3", THDP, the rest pretty much stock except for some chrome. '06 Trailblazer SS. Stock except for Corsa exhaust.
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January 10th, 2004, 09:32 PM
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i have 12.5 x 28 x 15 et streets on 8.5 centerlines auto drags with 3.5 back spacing and dual airbags they do not rub the frame and the lips are not rolled hope this helps
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charlloots - 87 we4
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