Need help figuring out a noise
 

Ok need help figuring out a noise.

I should start out by saying my car is a 1996 manual, with a jackson racing m45 supercharger on it.

Anyways, I am driving down the road in 3rd at full throttle and boost. I hear a noise like a rock hitting the side of the car. It was a loud crack like a rock hitting a body panel, sound came from passenger side. Then the battery light came on. I assumed I had broke a belt, but the belt seems to be fine. (tho a little loose). I then thought that maybe my battery had cracked and popped. The battery appears to be fine. After a mile or so the battery light went off, and the car drove fine. I limped it the extra 2 miles home, but can't think of what else it could be. When I got home I shut it off, then tried to start it, thinking it would have trouble turning over. It started just fine, I don't seem to have any power issues now.

Just looking for ideas, so I can have a starting place tomorrow morning. Thanks for any help in advanced. Sorry for lack of description.

Check the starter and alternator wiring. Something may have come in contact with the wires and caused a brief short. Something could have fallen out or bounced up. Are you missing any tools?

Ok so I found the issue, I lost the alternator tension-er bolt. Thats easy enough to find.

But I also lost the other bolt (that holds the alternator), that lets the tensioner work. This is the worst description ever so I will back it up with some shitty MS paint artwork.
https://www.miataforumz.com/attachme...ine=1373593250 I lost the circled piece.

Anyone know where I can buy one, or what they are called. I can always Jerry-rig it if I have to.

Something like this?

ALTERNATOR ADJUSTMENT BOLT KIT (PKALTBOLT2) - $16.95 - PKALTBOLT2