Justin@VMP
January 25th, 2010, 10:40 AM
Carl did not want to go to the trouble of an idler so he decided to use a 2.93" upper pulley, most people go as small as possible which is around 2.7". With the cool weather we were having the car made great power. It had stock cats and a CAI. The first run was before the pulley and tune, 2nd displayed run is with pulley and custom dyno tuned.
http://vmptuning.com/dynographs/carl04cobra.jpg
http://vmptuning.com/dynographs/carl04cobra.jpg