Quote:
Originally Posted by Locker537
Hm, very interesting and I'm glad I asked.
I'm new to HPDE. I was thinking some consistency to tire size and type would be a good thing. Two sets of similar wheels running the same size and type tires. I wouldn't expect to notice the differences in 16 versus 15 inch rims, at least not yet! I also was not considering 15 inch due to limited tire choices, but I suppose I was thinking street tires.
I wouldn't call whatever I buy dedicated track wheels, as I currently drive the car to the track and won't always be planning on swapping wheels upon arriving. More a backup set.
I'm currently running Dunlop Direzza ZIII tires.
I thought 9" rears had a higher change of running into fit issues, so was avoiding that.
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it's the front wheels (specifically running 7" fuchs) that can have rubbing issues -- you'll have no problem running either 8" or 9" wide fuchs in the rear) The issue you run into with 9" fuchs is that they require 245/45-16, which have very limited sizing options, while the 8" fuchs use the same 225/50-16 tire size you're already using
Think we're also on the same page on "track" tires -- maybe better to think of them as sticky tires that will wear out quickly but are just fine for the street (and would be great to take on spirited drives off track too) --
Do think you'd notice the difference from running shorter wheels/tires, though -- as I understand it, the smaller diameter of the 15" tire will increase the speed your engine runs to maintain the same speed which will also result in a significant increase in perceived power/acceleration -- Somewhere north of 10% increase if I recall correctly. Not ideal for relaxed highway cruising, but a VERY effective way to increase the fun factor for minimal $$$