nebmustang01

Hi, I've recently bought an 04 competition orange cobra... I took it to the track the other day and 2 days ago I heard this awful noise while driving. Looked under the hood and the belt was torn to shreds. After further looking I noticed the Idler pulley near the alternator had a chunk out of it... so I ordered 3 new 90mm metco idlers to replace the factory ones. I've read the belt size charts and still not sure what size. My set up will be 3 90mm idlers and a 90 mm tensioner with a 2.81 pulley. So what belt size should be appropriate?? Thanks for the help!

Timspony

Run the exact same set-up with the TR Cobra (stock lower) = 74.5" belt