Stock 17's to Nismo 18's Question
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I'm thinking of taking the plunge and replace my stock 17" wheels and tires for 18" Nismo wheels and, as yet, undecided tires.
The Nismo wheels are 18x8.5 with +25 offset, and 18x9.5 +30 offset (F/R). I've read in another thread that the proper tire size would be 245/40 front, and 275/40 rear to keep the rolling diameter same as stock. Would this combination work for replacing the 17's? I would think the rolling diameter would be the same for 17 as 18, just less sidewall. How about the offset figures of the Nismo--correct for those size tires?
How many have replaced 17's for eighteens and how's the ride?
Thanks in advance,
The Nismo wheels are 18x8.5 with +25 offset, and 18x9.5 +30 offset (F/R). I've read in another thread that the proper tire size would be 245/40 front, and 275/40 rear to keep the rolling diameter same as stock. Would this combination work for replacing the 17's? I would think the rolling diameter would be the same for 17 as 18, just less sidewall. How about the offset figures of the Nismo--correct for those size tires?
How many have replaced 17's for eighteens and how's the ride?
Thanks in advance,
Last edited by Drumtemp; 08-30-2003 at 05:05 PM.
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ok, here goes.
front tires 225/50/17 to 245/40/18 = same size
rear tires 235/50/17 to 275/40/18 = new tire has .4" larger diameter. Instead, a 265/40/18 would be an exact match, if anyone makes that size.
As for ride difference, before I sold my Track Ray's, I had them on my wife's G35c. The ride was a tiny bit more firm, but not too noticeable. Also, the stock G35c Auto tires are Goodyear RS-As as opposed to the RE-040's that were on the Rays, so that could account for as much of the ride difference as tire size.
front tires 225/50/17 to 245/40/18 = same size
rear tires 235/50/17 to 275/40/18 = new tire has .4" larger diameter. Instead, a 265/40/18 would be an exact match, if anyone makes that size.
As for ride difference, before I sold my Track Ray's, I had them on my wife's G35c. The ride was a tiny bit more firm, but not too noticeable. Also, the stock G35c Auto tires are Goodyear RS-As as opposed to the RE-040's that were on the Rays, so that could account for as much of the ride difference as tire size.
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