Pro Slot "The Boss 490" Drag Racing Motor - Dynamically Balanced Ball Bearing version - 110,000+ RPM High Torque - Clockwise Rotation - This motor has standard 0.570" (14.5mm) air gap and comes with the PS-121 BOSS
armature - The set-up has been blue printed and copper hardware has been
installed on the endbell
Blueprinting
process includes straightened can, aligned Oilite bushing soldered in
place, aligned and honed brush hoods and matched magnets - These motors
also include Gold Dust brushes, Champion springs and are completely
tested
The
“BOSS 490” was designed for the bracket racer running a heavy weight,
hard body car weighing 125g+. It was designed to use 10T pinions for
better gear mesh and better short times and yet still use very little
glue to launch. This motor has more torque and top end than the PS-101
and is perfect for heavy hard bodies. Tests in a 125g MM/PS with 10/60
gears and 1.060 x .500 tires yielded ET’s in the .880’s @ 65+ mph in the
¼ mile. This motor comes blueprinted with a
special “BOSS” armature and copper hardware installed. The dyno results
say it all.
For more in depth look at “THE BOSS 490” check out Martin
Nissen’s website http://www.kahale-martinapmachine.net Marty has done extensive testing with “THE BOSS 490” and has posted some impressive tuning tips.
