Installed some underdrive pullies on my T-Bird sport. I MPG improvement and better acceleration. I always thought it was bunch of hooey but there is some HP to be found in the pullies. I did have to keep the stock alt pulley so it would not discharge at idle but still. Anyone notice the same?
Yep. I put an underdrive crank pulley on, and noticed a difference. In rain at night, the lights would dim at idle, but it was worth it.
O.K.,O.K.,I'll get some..............maybe.
I noticed slightly better MPG when I did the underdrive crank pulley on my old 'Bird...that was about it though.