Con's of getting 245 in front and rear
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Joined: Jul 2004
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From: Costa Mesa, CA
I have also been considering this. For economical purposes I think people want a squared setup so they can rotate their tires and get the longest use out of them. For those who are true enthusiast they would more than likely go with staggered set-up.
Since times are tough, anyone know the overall diameter for stock 17" 2005 tires? Would I be able to run a square setup on 235/50/17 without affecting the TCS?? Fronts are 225/50/17.
Since times are tough, anyone know the overall diameter for stock 17" 2005 tires? Would I be able to run a square setup on 235/50/17 without affecting the TCS?? Fronts are 225/50/17.
Originally Posted by Spike100
Ok… getting back to the Op’s original question:
If you want to rotate tires and you have stock 18” wheels (8” front and rear, or 8” front and 8.5” rear), here are the considerations:
And... I would never run all-square on my 350Z just to accomplish longer use of tires.
--Spike
If you want to rotate tires and you have stock 18” wheels (8” front and rear, or 8” front and 8.5” rear), here are the considerations:
- The 350Z has a staggered tire-height (i.e., the fronts have an overall diameter of 25.9” and the rears have an overall diameter 26.7"). If you mount tires that have overall diameters different from the stock sizes, your speedometer will be inaccurate, and VDC or TCS might malfunction (if your car is equipped with these features). In other words: If your car has VDC or TCS, do not mount tires that have the same overall diameter (front and rear) since doing this can result in erratic deployment of VDC/TCS.
- If you do choose to go with a square setup (same tire width and same tire overall diameter) on 18” wheels that are 8” to 8.5” wide, go with 245/40-18” or 245/45-18” all around. 245’s fit 8” to 8.5” wheels, and 245/40 provides better acceleration while 245/45 looks better. Of course if your car is equipped with VDC, either of these arrangements will result in problems and unsafe operation of your car.
And... I would never run all-square on my 350Z just to accomplish longer use of tires.
--Spike
Originally Posted by Me350Z
I have also been considering this. For economical purposes I think people want a squared setup so they can rotate their tires and get the longest use out of them. For those who are true enthusiast they would more than likely go with staggered set-up.
Since times are tough, anyone know the overall diameter for stock 17" 2005 tires? Would I be able to run a square setup on 235/50/17 without affecting the TCS?? Fronts are 225/50/17.
Since times are tough, anyone know the overall diameter for stock 17" 2005 tires? Would I be able to run a square setup on 235/50/17 without affecting the TCS?? Fronts are 225/50/17.
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Joined: Jul 2004
Posts: 129
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From: Costa Mesa, CA
Originally Posted by redlude97
You can't rotate those anyways becase the rear wheels are 8" while the fronts are only 7.5"
Forget about the rotation, can I put the 235/50/17 on the front wheels since they still have tread, then just buy new rear tires. What happens if the tires are slightly bigger that than the wheels?? Affect TCS?
i too also wanted to go non-staggered but after a little research, i too figured that nissan wanted the car, 06+ to be staggered..therefore i went with the Toyo T1R 225/45/18 front & 245/45/18 rear. As much as I know that I'll be lucky to even get 20k out of them, I figure spending a little right now would better then spending a lot later to get my TCS fixed due to inaccuarate tire sizes.
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Joined: Dec 2006
Posts: 7,337
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From: Edina, Minnesota
You can put 235/50-17" all around on your car and expect TCS to work just fine. This setup will also work even with VDC.
I run 225/55-17" all around for my winter tires/wheels, and have no problem with VDC/TCS.
--Spike
I run 225/55-17" all around for my winter tires/wheels, and have no problem with VDC/TCS.
--Spike
Originally Posted by Me350Z
Okay, good point.
Forget about the rotation, can I put the 235/50/17 on the front wheels since they still have tread, then just buy new rear tires. What happens if the tires are slightly bigger that than the wheels?? Affect TCS?
Forget about the rotation, can I put the 235/50/17 on the front wheels since they still have tread, then just buy new rear tires. What happens if the tires are slightly bigger that than the wheels?? Affect TCS?
New Member
Joined: Dec 2006
Posts: 7,337
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From: Edina, Minnesota
Originally Posted by Tubbs
I have a square 245 setup. Works great.
Originally Posted by Spike100
But... Didn't you report a problem with VDC and your setup?
--Spike
--Spike
Originally Posted by Tubbs
Certainly, but it was my fault for not turning VDC off.
I notice that tire-size-calculators give a pass when going from 225/45-18” (the stock size on the 350z’s front tires) to either 245/40-18” or 245/45-18” on the front.
However, tire-size-calculators warn against swapping 245/40-18” for 245/45-18” (the stock size on the 350z’s rears) on the rear.
So… I wonder if an all-square setup should be 245/45-18” all-around instead of 245/40-18” for cars equipped with VDC/TCS. I’ve never tested this setup (I’m running 245/40-18” front and 245/45-18” rear, which works flawlessly with VDC/TCS).
It would be useful to have an all-square setup where you didn’t need to turn VDC off every time you start the car. I’m interested in your comments or comments from anyone who has run this setup (245/45-18" all-square).
--Spike
Last edited by Spike100; Jun 18, 2008 at 04:27 PM.
Originally Posted by Spike100
If I remember correctly, your all-square setup is 245/40-18” tires all around on 18x8” wheels. You reported an incident when VDC activated unexpectedly while driving “on the street.” The thread became lengthy, and some people suggested that the overall tire diameter may have been an issue.
I notice that tire-size-calculators give a pass when going from 225/45-18” (the stock size on the 350z’s front tires) to either 245/40-18” or 245/45-18” on the front.
However, tire-size-calculators warn against swapping 245/40-18” for 245/45-18” (the stock size on the 350z’s rears) on the rear.
So… I wonder if an all-square setup should be 245/45-18” all-around instead of 245/40-18” for cars equipped with VDC/TCS. I’ve never tested this setup (I’m running 245/40-18” front and 245/45-18” rear, which works flawlessly with VDC/TCS).
It would be useful to have an all-square setup where you didn’t need to turn VDC off every time you start the car. I’m interested in your comments or comments from anyone who has run this setup (245/45-18" all-square).
--Spike
I notice that tire-size-calculators give a pass when going from 225/45-18” (the stock size on the 350z’s front tires) to either 245/40-18” or 245/45-18” on the front.
However, tire-size-calculators warn against swapping 245/40-18” for 245/45-18” (the stock size on the 350z’s rears) on the rear.
So… I wonder if an all-square setup should be 245/45-18” all-around instead of 245/40-18” for cars equipped with VDC/TCS. I’ve never tested this setup (I’m running 245/40-18” front and 245/45-18” rear, which works flawlessly with VDC/TCS).
It would be useful to have an all-square setup where you didn’t need to turn VDC off every time you start the car. I’m interested in your comments or comments from anyone who has run this setup (245/45-18" all-square).
--Spike
New Member
Joined: Dec 2006
Posts: 7,337
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From: Edina, Minnesota
Would 18x9” (vs. 18x8”) wheels result in a lower profile (and thus less overall diameter) using 245/40-18” tires?
I don’t know, but a definitive answer would certainly be interesting and useful. I would think that 245’s on a 9” wide wheel will be a stretched at least a little.
I think I now understand why your setup does not work with VDC. Your failure with VDC provides a good clue for the correct wheels and tires arrangement in an all-square setup for a reliable solution with VDC.
--Spike
I don’t know, but a definitive answer would certainly be interesting and useful. I would think that 245’s on a 9” wide wheel will be a stretched at least a little.
I think I now understand why your setup does not work with VDC. Your failure with VDC provides a good clue for the correct wheels and tires arrangement in an all-square setup for a reliable solution with VDC.
--Spike
Originally Posted by Tubbs
No, I have 9 inch rims with the 245/40/18's all around. I was doing some hardish canyon driving, and the vdc got wonky. and scared the **** out of me. I make sure to turn vdc off in any road trips now. No problems after.
Originally Posted by Spike100
Would 18x9” (vs. 18x8”) wheels result in a lower profile (and thus less overall diameter) using 245/40-18” tires?
I am running 275/30/19F and 275/35/19R...its not a squared set up and i try to keep a stagger in diameter to make my vdc happy. It give the car a much much neutral feeling. I've gone through a number of fitment before and by far Non-stagger width tires are the best imo.
Originally Posted by Concave
<- non staggered and the Z handles like a dream. I find it much better than a staggered set up.
dont listen to what any e-thug tells you on an internet forum. alot of research goes along way.
some magazine tested both methods and found the Z handled better non staggered. I had staggered, so I wanted to try non staggered.. I loved it.
dont listen to what any e-thug tells you on an internet forum. alot of research goes along way.
some magazine tested both methods and found the Z handled better non staggered. I had staggered, so I wanted to try non staggered.. I loved it.
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