The Atlas Soup Up Kit - stock number 1262 - will considerably increase the speed of your Atlas slotcars. For top performance change brushes and brush springs using the parts supplied in this kit. Use the cleaner block to keep the pickup shoes clean. Lubricate the ends of the shaft with Atlas Formula XX Racing Lubricant Oil or petroleum jelly - Vaseline® We will use both a standard chassis and a slimline chassis to demonstrate how the parts supplied in this kit fit.

There is an old saying, “Appearances can be deceiving.” The above two (2) NOS - New Old Stock - containers certainly prove this! The early, 1st issue container on the left appears to be exactly like the 2nd issue container on the right. Actually, the two piece clear ABS plastic containers are exactly alike. The contents are what makes these items different. You see, the box on the right has five (5) extra parts that not only date this but four (4) of which also serve to “SOUP” or “HOP” up the 2nd generation Atlas chassis.

The first issue Atlas Soup Up Kit consists of three (3) sets of grey drive gears with 10, 14 and 18 teeth. Also included are: one (1) set of two (2) Brushes, one (1) set of two (2) Brush Springs, one (1) Screw Driver and one (1) Abrasive Cleaner Block. NOTE: A drive gear consists of one (1) Spline Gear and one (1) Spur Gear. The second issue Atlas Soup Up Kit includes everything listed above PLUS one tube of Formula XX Racing Lubricant Oil and two (2) sets of RED drive gears with 14 and 18 teeth to be used with the Slimline Chassis. These red gears have a center hole which measures fifty thousandths of an inch - 0.050 inches - instead of the thirty nine thousandths of an inch - 0.039 inches - that the standard grey gears use in the Standard Chassis.

A: Stock Standard Chassis Gears - B: Soup Up Kit 10 Tooth Gears - C: Soup Up Kit 14 Tooth Gears - D: Soup Up Kit 18 Tooth Gears.
NOTE: Some Standard Axle and Spline Gears are white as can be seen in the above foto showing the comparison of the gears.

Left: Stock Slimline Chassis Gears - Middle: Soup Up Kit 14 Tooth Gears - Right: Soup Up Kit 18 Tooth Gears.
NOTE: Some Slimline Axle Gears are red as can be seen in the above foto showing the comparison of the gears.

1. Remove both screws that attach the body to the chassis. Remove body from chassis.
2. Pry one (1) or both terminal clips away from motor. Remove motor from chassis.
3. Hold armature firmly and pry stock gear off commutator. Extreme care must be used when prying the gear from the armature shaft. If not held properly, the commutator will move on the shaft which will result in damage to the armature.
4. Remove gear of choice from sprue.
5. Lay gear face down on a flat metal surface. While holding the motor vertically, guide the end of the shaft into the hole of the gear. It is mandated to hold the motor vertically when attaching it to the gear in order for the gear to run true during normal operation. Only use enough downward force to get the gear to attach to the armature shaft.
6. After mounting the gear, check the clearance with a stiff sheet of paper or a shim of 0.004 or 0.005 - four or five thousandths - of an inch.
7. Remove the matching spline gear from the sprue and carefully trim the excess molding.
8. Slip the end of the spline gear in first. Slightly spread the chassis in order to all the other end to fall into place. Gently bend terminal clips inward in order to make good contact when the motor is replaced.
9. Carefully replace the motor into the chassis. Make certain that the gear teeth mesh as they come into contact. Lubricate with a drop of Atlas Formula XX Slot Car Racing Lubricant Oil or Vaseline® at end of each shaft and each gear face.

m101 motor frame m102 armature m103 end plate m104 magnet m105 field clip m106 brush m107 spring m108 brush screw m109 spur gear c121 chassis c122 motor terminal clip set c123 axle c124 axle gear c125 spline gear c126 hub c127 tire c128 pickup shoe c129 front guide c130 rear guide c131 screw c132 pickup shoe springs soup up kit parts

Atlas Soup Up Kit