Belt size

[Flores8787]

ok guys, I finally got some mods for the cobra, I went for the 2.93 billetflow sc pulley and the 100mm*aux idler and 90mm metco idler pulleys and will get a tune.
now searching what belt size I require for this set up? looking for gates belt .
thanks guys!

 

[CobraBob]

If nobody has your exact configuration, try the method recommended by Metco that is found HERE in my Terminator FAQs. Scroll down to the third section titled '2003-2004 Mustang Cobra Belt Length (Eaton)'.

 

[golfer11689]

If you went with the Metco kit that has 3 90mm and 1 100mm then you can follow this chart which means you should be looking for a 74.5" belt. This chart is for stock idlers but those were also 90mm. If you have 3 100mm then you'll need a 75.5" belt. Hope this helps.

Pulley Size.....Belt Size.......Gates Part No......Gatorback Part No.
3.65...............75.5"...............K080755................4080755 (can not use New Bracket)
3.40...............75.1"...............K080751................4080750 (can not use New Bracket)
3.10...............74.5"...............K080745................4080745 (must use 92mm Idler Pulley)
2.93...............74.5"..................K080745................4080745 (with 100mm Idler)
2.76...............74.5"..................K080745................4080745 (with 100mm Idler)

 

[cj428mach]

As Bob said Metco has a guide to help figure out the belt length for your setup.