Belt Length Needed

[Video_Master]

I have the following parts and need to know what size belt to use.

Billetflow 2.76 Upper Pulley
LFP 2# Lower Pulley
Billetflow 4 piece idler set (1x92, 3x100)
STOCK tensioner
STOCK alternator pulley

The idlers are installed just like the picture below and are the same sizes as pictured below.

 

[03dsgcobranc]

check this chart http://www.stangshiftergaskets.com/BeltSelectionGuide.htm

 

[Video_Master]

check this chart http://www.stangshiftergaskets.com/BeltSelectionGuide.htm

I do not trust any of those sizes cause there are ones listed for that combo that are being used on larger pulley combos. There are also combos that have larger pullies then my setup that are using a smaller belt then what is listed for my combo.

 

[Video_Master]

ttt

 

[sb03cobra]

I have been running this combo for over a year with a K080785.

 

[ClubVenom1]

Do a rope test and route it around as you would a belt. Mark and measure it. Take .5" out to compensate for the tensoiner being unloaded. THis should get you close.

 

[mixxer]

76.5 - 77