[font=Arial][font=Arial][font=Arial] I have a 89 civic si and i keep burning out my alternators. When i was at nelsons last weekend during a session the charge light came on and my 6 month old bosch premium was toasted. I took it to the local autopart store and they bench tested it and said it was the diodes. Is there any quick solutions so i dont have to replace alternators twice a year. Some say i should underdrive it but will the pulleys actually underdrive it enough. Thanks guys i am really interested on how the endurance civics kept their alternators alive.