Armature Wind Specifications
         
Motor # Turns Gauge Stack L Stack D Comments
         
16D 70 30 .600"   Cheap Chinese junk arm, n/balanced, need to buy 20 to get good one, D-can setup, uses S16D magnets
         
Contender Sportsman Competitor Challenger II 55 30 .440"   C-can setup, available balanced and unbalanced, consistent US made arms
         
Super 16D 60 28 .500"   Balanced, D-can setup, Chinese and US arms available
         
Super 16C 55 28 .490" .513" C-can setup, close to Group 12 in performance, used in GTP classes where C-can are used
         
Outlaw Super 16D 55 28 .450" .513"  
         
Box Stock 12 50 29 .350"    
         
Box Stock 15 50 29 .440" .513"  
         
Wasp   Super Wasp Hornet 60 30 .350"   C-can setup, slight edge on the Group 11
         
Group 11 55 30 .440"   C-can setup, aka Challenger II, Competitor, Contender & Sportsman, popular in GT-1, beginners wing car, National 4.5", NASCAR, JRL
         
Group 12 50 29 .350" * Used in Box stock wing cars, Scale Group12, GTP 12, Outlaw 12, X-12 usually just means X-tra high timing. This arm is also configured for strap motors where the armature can be smaller than .513"
         
Group 15 50 29 .440" * * 12 & 15 come in varying diameters and are used in setups from C-cans to cobalt strap setups for various classes
         
Group 20 38 27 .440" .513" C-can setup used in wing cars and Drag Racing
         
Group 27 38 27 .440"   Hand wound, any diameter, used in cobalt strap setups
         
Open or Group 7         Anything goes

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