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93celicaconv
04-24-2016, 12:50 PM
My son has a 1990 All-Trac, and 16" wheels from a 2005 Celica GT-S. He would like to put 225/50R16 tires on those wheels for the 1990 All-Trac. I know they are larger than stock diameter. Will they fit properly on the All-Trac without any kind of modification requirements?

METDeath
04-24-2016, 02:06 PM
A few of us run 225/45R17 on a 17x8+35 based on that I think you should be okay.

Biggest issue would be if he slammed it, and hasn't rolled the rear fenders, maybe?

93celicaconv
04-24-2016, 10:12 PM
A few of us run 225/45R17 on a 17x8+35 based on that I think you should be okay.

Biggest issue would be if he slammed it, and hasn't rolled the rear fenders, maybe?

The diameter & tread width of 225/45R17's would be very close to those of 225/50R16. For those running 225/45R17, has everyone rolled the rear fender seams? I was hoping not to do that.

METDeath
04-25-2016, 01:37 AM
I haven't, but I run a little high in the back with stiff damper/springs.

John has rolled his, I think Joey did on his 17x9+30 wheels.

Is the All-trac lowered will be the big point. I know if I ran 17x8 on my coupe with the TRD springs it would have required the rolling of the rear fenders.

celica91gts
04-26-2016, 01:05 PM
i think you will be fine. all tracs have the wide body fenders after all.

Murgatroy
04-26-2016, 03:31 PM
The offset on the 7th Gen GT-S wheels will cause them to tuck on the rear, they usually require 25mm spacers to bring them flush on the widebody rears. Coupes are different as they don't have as wide a rear.

As has been done a few times though, widebody front fenders on a narrowbody, will match all the way around without spacers. As shown on Chaos.

METDeath
04-26-2016, 10:15 PM
Every wheel is tucked on the back of a GTS/All-trac because the fender is wider, but the wheel placement is identical as the narrow body. I attribute this to the existence of the narrow body All-trac, as it is easier to design one nearly universal set of components with slightly differing body panel designs.

So, in short, always run a hub centric 25mm spacer in the back if you want the wheels to look closer to flush.

93celicaconv
04-28-2016, 12:38 AM
Well, we will have the 225/50R16 tires put on the 7th Gen GT-S 16"x6.5" wheels tomorrow. The gentleman that did some measurements did say height will be OK, width to the fenders OK, but the rear's will be close to the struts, which aligns with some thinking here.

If we want the rears spaced out a bit, where would one get the spacers? 25mm (1" seems like quite a bit of shift though - do they make 12-15mm spacers?

Will let you know what it seems like after install later this week.

METDeath
04-28-2016, 08:00 PM
H&R 25mm spacers are perfect for the back. I got mine off either Amazon or eBay, check my build thread for the part number.

93celicaconv
05-15-2016, 07:02 PM
Update: The 225/50R16 tires were put on the 7th Gen GT-S 16"x6.5" wheels, and onto one of our ST185's. There was sufficient room at the closest potential for contact area (rears to struts) to not cause a problem. So no spacers are needed. Those tires do drive nicely on an ST85. Thanks for all the input.

fdbaxter
05-18-2018, 05:30 AM
I run 16x6.5 42mm offset with 205/50 Uniroyal tires (http://4wheelonline.com/uniroyal-tires.246715). Not the widest tire size though they fill up the wheel wells nicely. I installed 25mm spacers, and no rubbing issue.

93celicaconv
05-18-2018, 02:01 PM
I run 16x6.5 42mm offset with 205/50 Uniroyal tires (http://4wheelonline.com/uniroyal-tires.246715). Not the widest tire size though they fill up the wheel wells nicely. I installed 25mm spacers, and no rubbing issue.

With the stock tires being 215/50R15, your 205/50R16 are just 2.5% larger in diameter (meaning your speedometer will read 2.5% lower than actual speed, and your odometer will show 2.5% less distance than actual). Often times, with stock tires, the speedometer read a bit higher than actual and the odometer showed a bit farther distance than actual, so if you have the same phenomenon, you'll likely be more accurate now.

My 225/50R16 tires are actually 5.9% larger in diameter, so the effects are more pronounced on speedometer and odometer readings. But they fit with no spacers, no rubbing anywhere, and the width of these tires look good on the car.

fdbaxter
05-25-2018, 02:31 AM
Good to know. I will consider that size for my next tires.

lalojamesliz
06-30-2018, 07:09 PM
I am also running the 225/50r16.
No issues besides being close to the rear strut