my winters - 18" BSA 264's & blizzak's
10-14-2008, 01:58 PM
#31
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Wanted to see the response of a 2nd Infiniti dealership with my question of what snow tire size would you recommend - and they said basically the same as the first dealership, 225/45R18's for front and 245/45R18's for the rear. I asked him if he could explain why the staggered set-up and he said that this vehicle was designed with a staggered tires to provide certain handling characteristics, which will be changed should I go with 225's all around. He said the car won't perform the same with 225's (dry or snow)...
10-14-2008, 02:00 PM
#32
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okay, in the summer it may make a difference. but in the winter 225 is good to have all around. Narrow is always better to cut through snow, wide tires would have to much snow under the tire.
10-14-2008, 02:08 PM
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^^^Ya, exactly that makes sense to me - I'm just perplexed as to why both dealerships say Infiniti Canada recommends 225 in the front and wider 245's in the rear? These are Ottawa dealerships - maybe I should call Montreal or T.O. dealers and here what they have to say...
10-14-2008, 02:08 PM
#34
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^^^ Again, +1 million!
They'll have to be more specific with what kind of handling characteristics would change having all 225s. The ability to cut through snow better with thinner tires trumps all other "characteristics" in my books.
They'll have to be more specific with what kind of handling characteristics would change having all 225s. The ability to cut through snow better with thinner tires trumps all other "characteristics" in my books.
10-15-2008, 12:05 AM
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Wanted to see the response of a 2nd Infiniti dealership with my question of what snow tire size would you recommend - and they said basically the same as the first dealership, 225/45R18's for front and 245/45R18's for the rear. I asked him if he could explain why the staggered set-up and he said that this vehicle was designed with a staggered tires to provide certain handling characteristics, which will be changed should I go with 225's all around. He said the car won't perform the same with 225's (dry or snow)...
But as the other posters have mentioned, it still doesn't make sense for winter...lol...
With regards to the fronts only, I'm still not sure why Infiniti recommends 225/45R18. That would result in a 3.7% difference (as calculated in my prev. post) versus the OEM 225/45R19.
So far, Tirerack's recommendation of 225/50R18 all around makes the most sense. I'll get that size when my 225/45R18's are toast.
10-15-2008, 12:20 AM
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One thing just came to mind - for a stock G37S, do the rear wheels have negative camber??
(looks like YES... https://www.myg37.com/forums/showthr...egative+camber )
Also, is the rear negative camber the same for G37 and G37S?
I remember reading a while ago that stock G35's and 350z's had negative camber, which helped improve handling. But in the case for 350z's, that also led to the notorious tire feathering issue.
So let's say a stock G37S did have some negative camber - if we put a slimmer tire on the back (225 instead of 245), doesn't the decrease in tire width cause result in slightly more negative camber than with 245?
But according to the link above, they put a wider tire and it made the camber even more noticeable. I'm confused.
Does a slimmer tire reduce negative camber, or increase negative camber???
Thoughts?
(looks like YES... https://www.myg37.com/forums/showthr...egative+camber )
Also, is the rear negative camber the same for G37 and G37S?
I remember reading a while ago that stock G35's and 350z's had negative camber, which helped improve handling. But in the case for 350z's, that also led to the notorious tire feathering issue.
So let's say a stock G37S did have some negative camber - if we put a slimmer tire on the back (225 instead of 245), doesn't the decrease in tire width cause result in slightly more negative camber than with 245?
But according to the link above, they put a wider tire and it made the camber even more noticeable. I'm confused.
Does a slimmer tire reduce negative camber, or increase negative camber???
Thoughts?
10-15-2008, 01:36 AM
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You guys are making this SO much more complicated than it needs to be.
All of this is virtually irrelevant. In the winter the roads are so cold, any performance improvement you would get from running negative camber (mostly tighter more agile cornering) are completely lost becasue you'd be runnign the car hard enough that the back end woul dbe all over the place.
I track my MR2 on the drag strip and on the track. On the drag strip you can just get more power to the ground with wider tires (I run 265's), and they help a bit on the track going through tight corners. Again, none of which matters when it's cold out and your tires are stickign anyways.
And like everyone else has mentioned, narrower tires will ALWAYS help get you through the snow better.
As for being off 3.7%, who really cares? Differnet tire places are going to suggest whatever they stick more readily, ESPECIALLY online stores.
I really hope no one is loosign sleep over this. I assure you 95% of people wouldn't know the difference when in either setup.
All of this is virtually irrelevant. In the winter the roads are so cold, any performance improvement you would get from running negative camber (mostly tighter more agile cornering) are completely lost becasue you'd be runnign the car hard enough that the back end woul dbe all over the place.
I track my MR2 on the drag strip and on the track. On the drag strip you can just get more power to the ground with wider tires (I run 265's), and they help a bit on the track going through tight corners. Again, none of which matters when it's cold out and your tires are stickign anyways.
And like everyone else has mentioned, narrower tires will ALWAYS help get you through the snow better.
As for being off 3.7%, who really cares? Differnet tire places are going to suggest whatever they stick more readily, ESPECIALLY online stores.
I really hope no one is loosign sleep over this. I assure you 95% of people wouldn't know the difference when in either setup.
10-15-2008, 10:11 AM
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I'm thinking maybe you've done that backwards?
10-15-2008, 11:44 AM
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