alternator

[cad]

I know this is an old thread, but I think tech shutting off my kill switch, while running, smoked my HOP alternator. Tech was the prior weekend. Alternator worked great for about 12 runs. Coincidentally, my race partner's ECE alternator took a crap the prior run to mine.... He teched last weekend same day as me. Both of our alternators are wired like K&R's diagram.

Any evidence of this, or ideas?

Originally Posted by Eman

On the one wire alt. if your battery is in the back how are you wiring it? I run a powermaster one wire, been on the car for almost 20 years and had to replace the regulator once. I've spoken to Powermaster,Mechman and East Coast electric and they say to run direct to battery, not the cutoff switch. They said that shutting the power off while the car was running could hurt the alternator and they don't recommend it. Called NHRA and they were very vague about having power at the alternator all of the time even with the main power switch off. I know many tracks when they tech will shut the car off from the cutoff switch as their test.
I'd say shutting off the power to a 1 wire alternator at WOT would not be recommended by the manufacturers.