Has anyone ever killed an Accord 4cyl Alt. with the AEM pulleys? That's the only downside I see? My battery is almost 6yrs. old, it needs replaced anyhow. I was going to do a deep cycle unit for that anyway since I don't drive the car a lot. My radio is stock. The 6cyl. has alt. issues unrelated to the pulleys if you ask me.

The pulleys just make the alt spin slower, it's output is RPM dependant anyhow to a limit rpm. How could slightly slowing the units spin kill it, your car runs off the battery not the alt. current? At most you charge the battery slower, if you are running a healthy deep cycle this shouldn't be an issue. Now if you had a sick battery and a weak Alt. current then I could see the alt. directly powering the car and then you could run into a current shortage issue putting strain on the alt.

Aside from the suspected Alt. issue what is the downside? Hey I'm only expecting minimal gains, not even really seat of the paints gains really. But I'm going to change the belts, I figure this sounds like a fun project to do at the same time. The pulley price isn't huge at all IMO. Clearly I can't see how the gains are any less $/hp then an intake as bolt-ons go. I've spent way more on the suspension, this seams like chump change Ekking even 1-3hp out of the engine would be a gain for this motor IMO.