TAPP Clutch Install

[AXE]

I did some more testing this past weekend on the Tapp Primary and stock secondary setup and used the Razorback belt temp guage to get better data. Was mainly on some desert hardback with some areas of loose sand/gravel and paved roads. Ambient temps were 80-90F and ran the OEM and Evo Bad Ass belts.

You can run this setup in high-power mode for a long time at around 195-205 F belt temps, as long as your not mashing the throttle down. As soon as you start mashing the throttle spinning tires or doing hard roll ons up to 65-75 mph the belt temps climb fast to 230F.

I attribute the high belt temps mainly due to lack of airflow through the cvt housing and heat soak from the cvt plastic and aluminum sheaves.

I was able to validate this today when I pulled the CVT cover and ran the same loop and same driving manners and never seen high belt temps at all when measuring with my handheld IR thermometer. The belt ran consistently between 165-190F. The sheaves stayed cool and both were the same temp. I could hold my hand on the outer sheaves. The inner sheave was a little too warm to touch for a long time. You could run all day like this and not smoke belts.

 

[AXE]

Also noticed that when I would stop with belt temps above 215F you could feel a little belt slippage. A fair amount of slippage when turning slowly, especially above 220F

 

[AXE]

You can also run in low and never see belt temps rise above 195 F and in mid they are about 200-210 F. So if you value belt life and want to save some dollars, then stay out of high power mode.