Quote:
Originally Posted by JockoT
Found this Report by the University of Kansas:
Over-inflated tires cannot insulate road irregularities well, causing them to ride harsher.
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I'll concur with this.
I finally dropped the pressure down on my Miata's tires this morning. I was running 35psi, while the recommended pressure is 26psi...and I have larger/wider tires. At 35psi I felt way too much of the road. Even rolling over the paint lines on the road, it was jarring and could be felt throughout the car. It's much smoother at 28psi.
I'm interested to see if I lose my 1 or 2 MPG's that I have over the normal for it. It will suck if it does, but I don't think it's worth the harsh ride quality.
OTOH, I keep my Metro at 40 or so, and don't have the same issue. Of course, they're a tall, narrow tire vs a semi-low profile, wide tire.