stock 16" and looking for 17"
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Joined: Apr 2002
Posts: 59
From: Plano, TX
stock 16" and looking for 17"
So I have stock 245/50-16 rims. I am looking to get some NT555R on the back and was wondering if upgrading to a stock 17" (I believe 275/40-17) would be worth getting? Or would I get just as much traction on my stock 16's as I would with a stock 17' with NT555R's? Also, do I need to do anything to my car when upgrading to 17"s. Some one advise Relo Brackets. Are they required? Thanks
Last edited by ls1powerz28; Sep 23, 2008 at 09:31 PM.
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From: Hell was full so they sent me to NJ
245/50-16 is the tire size. The stock wheel size is 16 x 8". To mount a 275/40-17 tire, you need a set of 17 x 9" or 17 x 9.5" wheels, with an offset in the range of 45-56mm.
You do not have to change anything else when running that wheel/tire combination. 17 x 9" is the stock size on the SS and WS6 coupes, so they are designed to fit from the factory, as long as the wheel offset is in the correct range.
I found a huge improvement in traction and handling going from 245/50-16 to 275/40-17.
"Relocation bracket" generally refers to the lower control arm (LCA) brackets. They are not required just because you change the wheel/tire setup. They will improve straight line traction on a stock ride height car, so they are always a good idea, but they have nothing to do with the wheel/tie size. Or possibly you are referring to spacers for the jounce bumpers (aka "bump stops"), and they are not required either.
You do not have to change anything else when running that wheel/tire combination. 17 x 9" is the stock size on the SS and WS6 coupes, so they are designed to fit from the factory, as long as the wheel offset is in the correct range.
I found a huge improvement in traction and handling going from 245/50-16 to 275/40-17.
"Relocation bracket" generally refers to the lower control arm (LCA) brackets. They are not required just because you change the wheel/tire setup. They will improve straight line traction on a stock ride height car, so they are always a good idea, but they have nothing to do with the wheel/tie size. Or possibly you are referring to spacers for the jounce bumpers (aka "bump stops"), and they are not required either.
Last edited by Injuneer; Sep 24, 2008 at 05:29 AM.
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Joined: Sep 2004
Posts: 2,595
From: Lenexa, KS
Good advice. I honestly don't think you will pick up much traction off the line if any due to the heavier wheels but maybe you will. I deff. noticed better handling and felt more comfortable pushing my car through the corners when I upgraded from 245/50/16 Kuhmos to 275/40/17 BFG KDWS (When I put ZR1's on my 1997 Z28)
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Joined: Apr 2002
Posts: 59
From: Plano, TX
and I do a lot of pushing through the corners too. 
Am I going to be ok pushing the corners as hard as I do with DR 555r's on the back? Or do i need to cut that out a little? even with 16's or 17's?
Am I going to be ok pushing the corners as hard as I do with DR 555r's on the back? Or do i need to cut that out a little? even with 16's or 17's?
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Joined: Sep 2004
Posts: 2,595
From: Lenexa, KS
If I wasn't doing any drag racing I'd put a set of nice street tires on it. Or buy 2 spare wheels to put drag radials on for the track.
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