Radix Belt for Pulley size.
Nov 23, 2005 | 05:44 PM
#12
Originally Posted by 1SlowHoe
However, the one I'm really looking for right now would be a 6.0 with a 3.0 pulley. What size do I need?
I looked at my 5.3 with a 3.4" pulley as a baseline. I had a 112" belt from Magnuson. A 3.4" pulley has a 10.68" circumference, and a 3.0 pulley has a 9.42" circumference. This is a difference of 1.26". If we assume that the belt contacts 75% of the pulley circumference, there is a net difference of .95" between the contact length of the two pulleys with the belt, which is close enough to 1". So...I would go from a 112" to a 111".
Nov 23, 2005 | 07:10 PM
#13
Originally Posted by thunder550
To answer your original question, I would say you need a 111.0" belt. Here's why:
I looked at my 5.3 with a 3.4" pulley as a baseline. I had a 112" belt from Magnuson. A 3.4" pulley has a 10.68" circumference, and a 3.0 pulley has a 9.42" circumference. This is a difference of 1.26". If we assume that the belt contacts 75% of the pulley circumference, there is a net difference of .95" between the contact length of the two pulleys with the belt, which is close enough to 1". So...I would go from a 112" to a 111".
I looked at my 5.3 with a 3.4" pulley as a baseline. I had a 112" belt from Magnuson. A 3.4" pulley has a 10.68" circumference, and a 3.0 pulley has a 9.42" circumference. This is a difference of 1.26". If we assume that the belt contacts 75% of the pulley circumference, there is a net difference of .95" between the contact length of the two pulleys with the belt, which is close enough to 1". So...I would go from a 112" to a 111".
Nov 28, 2005 | 02:07 PM
#18
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From: Orlando, FL
Originally Posted by moregrip
Stock Magnuson setup here.....LQ4....3.1" pulley......112.5" Gates belt