4451 ASR
Art Science Racing
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Light Components


Mass specification for 4451ASR AlCuSi Light Alloy Parts.

Balance shaft driving gear (BSDG)        -> 301.57 grams
Cam Gear plus Indexer (SAFCG)            -> 298.28 grams

Main Accessory Drive pulley (MAD)      -> 181.16 grams
Alternator Drive pulley (ADP)                 ->   95.55 grams

Power Steering Hub ILOK (PSH)             -> 161.90 grams
Power Steering Spindle ILOK (PSS-V)   -> 185.83 grams

Specifications do NOT include fastener weight.

Fastener Mass
M3 9pcs -> 7.92 grams
M5 6pcs -> 27.44 grams
M6 4pcs -> 12.24 grams

4451ASR System Mass Complete 2.8 pounds.
Factory Steel System Mass Complete 6 pounds.

Mass specification for 4451ASR modified, Balance shaft gears.

Balance Shaft Gear                                -> 168.12
Balance Shaft Washer                           ->   13.01

Specification is before Dynamic Balancing.
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