Under drive pullies on V8 Sport April 26, 2008, 09:25:10 PM 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? Quote Selected
Under drive pullies on V8 Sport Reply #1 – April 27, 2008, 02:33:56 AM 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. Quote Selected
Under drive pullies on V8 Sport Reply #2 – April 27, 2008, 04:47:50 PM O.K.,O.K.,I'll get some..............maybe. Quote Selected
Under drive pullies on V8 Sport Reply #3 – April 27, 2008, 06:25:28 PM I noticed slightly better MPG when I did the underdrive crank pulley on my old 'Bird...that was about it though. Quote Selected