supercharger pulleys
11-23-2009, 08:51 PM
#2
If it is the driven or drive pulley on the system and they are made of aluminum then yes. The aluminum is soft and will wear off where the belt contacts it, given the importance of the rib profile you don't want don't want to have to deal with slipping problems and the need to replace the pulley within the first year.
This isn't like trying to turn an alternator or power steering pump, the supercharger takes a lot of power to spin at full throttle, placing all that force on the soft aluminum.
This isn't like trying to turn an alternator or power steering pump, the supercharger takes a lot of power to spin at full throttle, placing all that force on the soft aluminum.
11-24-2009, 10:31 PM
#3
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If it is the driven or drive pulley on the system and they are made of aluminum then yes. The aluminum is soft and will wear off where the belt contacts it, given the importance of the rib profile you don't want don't want to have to deal with slipping problems and the need to replace the pulley within the first year.
This isn't like trying to turn an alternator or power steering pump, the supercharger takes a lot of power to spin at full throttle, placing all that force on the soft aluminum.
This isn't like trying to turn an alternator or power steering pump, the supercharger takes a lot of power to spin at full throttle, placing all that force on the soft aluminum.
11-24-2009, 10:57 PM
#4
Bead blast them first so the surface is slightly pitted. After you hard anodize them they will be tough, long lasting and high traction without being super-agressive on belt life.
Jim
Jim
11-25-2009, 10:08 AM
#5
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11-27-2009, 01:26 AM
#6
Yes. Steel shot is too aggressive and can wear your pulley and smooth out the ribs unless you are very careful and/or shoot it at a low pressure. Glass is safe. Try not to shoot the bore of the pulley as it can make it harder to get off later. Just do it enough to remove the black anodized original surface (if it is already anodized), or you can use caustic soda on the bore to remove the old coating.
Jim
Jim
11-28-2009, 01:46 PM
#7
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Yes. Steel shot is too aggressive and can wear your pulley and smooth out the ribs unless you are very careful and/or shoot it at a low pressure. Glass is safe. Try not to shoot the bore of the pulley as it can make it harder to get off later. Just do it enough to remove the black anodized original surface (if it is already anodized), or you can use caustic soda on the bore to remove the old coating.
Jim
Jim
