upsizing to new tires

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Old 04-17-2009, 01:35 PM
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last lemming
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upsizing to new tires

when I go to replace my first set of OEM tires I'm concidering going wider on stock wheels. Something like 255's or 265's on the back (not quite sure what the front would go up to). My question is what would be the correct size tire if I go up to this to keep my tire diameter the same, and more importantly, how does is affect handleing an accelerations. These cars don't have torque to spare if if the tire is heavy you can feel it in everthing it does.

Also, does anyone have any pictures showing an upsized tire on stock wheel in this range?
Old 04-17-2009, 01:41 PM
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Heat
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275/35 rear & 245/40 front. Fit perfect and give it a great stance. Also handles a lot better on corners. This is the closest diameter you can get without needing to calibrate your speedometer.

Last edited by Heat; 04-17-2009 at 04:21 PM.
Old 04-17-2009, 04:06 PM
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xref
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275/35 not 45.
Old 04-17-2009, 04:09 PM
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Originally Posted by xref
275/35 not 45.
yup 245/40/19 and 275/35/19 will give out about 1" more tire while being within 1% of stock height.
Old 04-17-2009, 04:18 PM
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last lemming
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Are there any good pics to see what this will look like, and while the car will obviously add more grip, does the car squirm on the rim becase the wheel is more "balloon like" than OEM.

Originally Posted by Heat
275/45 rear & 245/40 front. Fit perfect and give it a great stance. Also handles a lot better on corners. This is the closest diameter you can get without needing to calibrate your speedometer.
Old 04-17-2009, 04:24 PM
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Heat
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I Fixed my numbers. The car doesnt squirm at all. It really doesnt balloon out at all either. The Nitto charts said the Invo's would fit easily on the 8.5/9.5 rims. I think it also depends on the tire that you choose.
Old 04-17-2009, 04:55 PM
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w0ady
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here is my car with 245/40 and 275/35 on stock 19s.

Old 04-18-2009, 01:12 PM
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celwin
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I'm curious how this setup would look on a 07 G35 Sedan. Tire size specifically
Old 04-21-2009, 02:32 PM
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JmT
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Originally Posted by w0ady
yup 245/40/19 and 275/35/19 will give out about 1" more tire while being within 1% of stock height.
That being said (about stock height). Do you think I would be ok with this modification to the rears Only? The front tires won't need to be changed for a while, but the rears are ready for new rubber now. If so, what's your take on using a different brand/tire in the rear than in the front?
Old 04-21-2009, 03:20 PM
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last lemming
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How about acceleration, is the extra mass in the tire felt?

Originally Posted by Heat
I Fixed my numbers. The car doesnt squirm at all. It really doesnt balloon out at all either. The Nitto charts said the Invo's would fit easily on the 8.5/9.5 rims. I think it also depends on the tire that you choose.
Old 04-21-2009, 10:40 PM
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w0ady
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i know tire shop guys that run different brands and say its fine.
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