The Slow Lane

A blog about autocrossing, some geeky stuff & Philadelphia.

Wed 23 Jul 2008

Found the Source of that Tire Vibration

Posted by Paul under Autocross, Miata |

Ever since the first or second event of the season I’ve had a vibration at high speeds. I checked various things on the car and nothing seemed out of place. I took a look at the tires while they were on the car looking for flat spots and didn’t see any. I figured a weight fell off or a tire shifted enough to throw it out of balance and just lived with it since I don’t drive the car that far on my competition tires. I was changing back to my stock tires for the drive up to the Finger Lakes ProSolo and what do I see? A big old flat spot.
Flatspoted Tire
That explains that. The front brakes tend to lock up early on these cars and it looks like it finally caught up with us. After my experiences with mismatched tires on the Prelude I realize that I have to replace them in pairs. I hate the idea of throwing out a perfectly good tire so I’m gonna just run on this and keep a close eye on it to make sure it doesn’t cord. Hopefully I can get through August on it. We have the Al Holbert Memorial and possibly PA States that month. Both two day events.

  1. One Response to “Found the Source of that Tire Vibration”

  2. By shinronin on Jul 23, 2008

    hey paul, lemme know when you’d like a new set of b-stones as per our arrangement. i think hawk hp+ rear pads will help with the front lock-up issue.

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