what is the biggest tire

bigwhiskey · September 9th, 2007, 01:51 AM

what is the biggest tire i can fit on a 89 gt on a 16x7 rim
it has not been lowered and its just for the rear tires

dave4002000 · September 9th, 2007, 02:55 AM

I've got 275/40's on 17x9, so you shouldn't have a problem with clearance with the 16x7's. You should be able to run the biggest tire you can fit on a 7" rim which is going to be around a 245 or 255. If you go any bigger than that, the sidewalls will have to stretch to reach the rim and it won't look right.

bigwhiskey · September 9th, 2007, 11:43 AM

thanks

ryans88gt · September 9th, 2007, 12:32 PM

Depends on your wheel offset, the stance of your car, whether you have quad shocks or not, etc...

Also the metric numbers on tires are all but meaningless, one 245 wide tire could be 7 inches wide and another brand 245 tire could be 9 inches wide. The width of your wheel also comes into play.

But somewhere between 245 to 275 is most likely.

dave4002000 · September 9th, 2007, 01:18 PM

Originally Posted by ryans88gt

Also the metric numbers on tires are all but meaningless, one 245 wide tire could be 7 inches wide and another brand 245 tire could be 9 inches wide. The width of your wheel also comes into play.

How do you figure that? 245 is the section width of the tire which is 245mm. You might get variations of about 5-10mm, but you'll never get a 2 inch variation between two different 245 tires.

He said the car has not been lowered, and you won't have clearance issues with the quad shocks until you go into the 265/275 range, unless you are running a rim with about 8 inches of backspacing...lol.

ryans88gt · September 10th, 2007, 12:15 AM

Dude, 245 is an estimate. Period. Manufacturers can make a 245 tire however wide they want.

Also, I have 245 wide tires and quad shocks on my 89 and they rub at high suspension travel.

86ttops · September 10th, 2007, 12:40 AM

Wow Funny i have hed three diffrent 275/40/17 on th back of mine dam thing just keep wearing out in the back dont know why? anyway i dont have quad shocks on mine and they have all cleared just fine

Iownastang · September 10th, 2007, 05:18 PM

Originally Posted by 86ttops

Wow Funny i have hed three diffrent 275/40/17 on th back of mine dam thing just keep wearing out in the back dont know why? anyway i dont have quad shocks on mine and they have all cleared just fine

Well quit doin burnouts then!!1

86ttops · September 10th, 2007, 08:37 PM

you didnt see shit and cant prove it
No thats just undercoating on my rear quarters

September 9th, 2007, 01:51 AM	#1
bigwhiskey Newbie Join Date: May 2007 Posts: 12 iTrader: 0 reviews	what is the biggest tire what is the biggest tire i can fit on a 89 gt on a 16x7 rim it has not been lowered and its just for the rear tires

September 9th, 2007, 02:55 AM	#2
dave4002000 Newbie Join Date: Aug 2007 Posts: 17 iTrader: 0 reviews	I've got 275/40's on 17x9, so you shouldn't have a problem with clearance with the 16x7's. You should be able to run the biggest tire you can fit on a 7" rim which is going to be around a 245 or 255. If you go any bigger than that, the sidewalls will have to stretch to reach the rim and it won't look right. __________________ '89 LX Hatch 5.0 5spd 1 5/8" Headers 2.5" Cats 3" Cat-Back 10.5" Clutch MSD Ignition

September 10th, 2007, 12:15 AM	#6
ryans88gt MM Fanatic Join Date: May 2007 Location: Bloomington, IL Posts: 4,627 iTrader: 0 reviews	Dude, 245 is an estimate. Period. Manufacturers can make a 245 tire however wide they want. Also, I have 245 wide tires and quad shocks on my 89 and they rub at high suspension travel. __________________ 88 GT CHI headed 351w 10.8 @ 125 - still figuring it out. 03 Cobra 2.3 whipple 10.7 @ 129 - sold it 04 Mach 1 12.7 @ 109 mostly stock - sold it 89 LX procharged 302 515 hp 497 ftlbs 10.7 @130 mph - sold it

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September 9th, 2007, 11:43 AM	#3
bigwhiskey Newbie Join Date: May 2007 Posts: 12 iTrader: 0 reviews	thanks

September 9th, 2007, 12:32 PM	#4
ryans88gt MM Fanatic Join Date: May 2007 Location: Bloomington, IL Posts: 4,627 iTrader: 0 reviews	Depends on your wheel offset, the stance of your car, whether you have quad shocks or not, etc... Also the metric numbers on tires are all but meaningless, one 245 wide tire could be 7 inches wide and another brand 245 tire could be 9 inches wide. The width of your wheel also comes into play. But somewhere between 245 to 275 is most likely.

September 10th, 2007, 12:40 AM	#7
86ttops Hardcore Enthusiast 86,97 mustang gt t tops n/a Join Date: Aug 2007 Location: decatur il Posts: 1,274 iTrader: 0 reviews	Wow Funny i have hed three diffrent 275/40/17 on th back of mine dam thing just keep wearing out in the back dont know why? anyway i dont have quad shocks on mine and they have all cleared just fine

September 10th, 2007, 08:37 PM	#9
86ttops Hardcore Enthusiast 86,97 mustang gt t tops n/a Join Date: Aug 2007 Location: decatur il Posts: 1,274 iTrader: 0 reviews	you didnt see shit and cant prove it No thats just undercoating on my rear quarters

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