Quote:
Originally Posted by nimblemotors
So did I understand that right, you put a normal 5in wide tire on a 4in space saver spare rim?
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You are correct nimblemotors.
Quote:
Originally Posted by CapriRacer
Did you change both tires and wheels? If so, then what tires did you change from and to?
Be aware that when you get new tires, you will take a fuel economy hit from the increased RR of the tires - as in, all other things being equal, new tires have larger RR than worn tires.
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I changed only the wheels, CapriRacer. The tires were swapped from the MX-3s to the space savers. They had close to 15,000 miles when I swapped, so RR should not had changed.
With the 14x5.5 rims, the tires barely got warm after driving 40 miles. With the 14x4 rims, the tread gets actually hot in that same drive, driven the exact same way. The increase in heat is what is cuing me in on an increase in RR.
What is your expert opinion on the matter? I did not expect the tire's heat to increase as it has. The only thing I can think of is a combination of increased hysteresis and the tread being affected by the pulled in sidewall.