8DN vs 8CH

the 8dn is a bit longer and a much harder compound belt. It tends to create more heat on the clutches, which puts stress cracks in the clutch sheaves, which will make the clutch blow at high rpms ..I used to run 8dn, which is good for a drag race, but i have since switched to 8ch in my 97 sx to trail ride with.
 
yammy said:
the 8dn is a bit longer and a much harder compound belt. It tends to create more heat on the clutches, which puts stress cracks in the clutch sheaves, which will make the clutch blow at high rpms.

heat comes from improperly tuned clutches. you have a inefficient setup in your sled. your getting belt slip from either the primary clutch, or the secondary clutch, or both. take some good wot pulls and stop. feel the clutches. which ever clutch is warmer, is the one that's slipping more. you should be able to hold your hands on the secondary for at least 4-5 sec. the primary will always be a little hotter, cause the heat from the rods, crank bearings, and engine...will transfer into the primary clutch. i always ran the 8dn belt w/no issues.
 
8dn is harder compund, it will require a bit more weight in the arms to clamp the belt. You can get alot more miles from a harder compound belt then a soft one, but the changes above need to be made if the sled was equipped with the 8ch stock.Belt deflection spec. is also differnt for the 2 belts.

The 8ch is a softer compound belt, it is what guys use for drag racing if you want alot of bite from the belt. They also were used stock on the vmaxs and such also.
 


Back
Top