How to turn this... into this! - Can you take a hint? We’ve included lots of ’em in this little booklet by one of the top modifiers in the miniature auto racing field. Check them carefully before you start tinkering. Some will help you, some won’t. But whether or not you come up a winner, you’re sure to have fun trying. (page 02)
Model Motoring HOP UP ACCESSORIES and TOOL KIT - MM SCREW DRIVER, MM TRACK METAL STRIP CLEANER, MM BRUSH ADJUSTER, SPECIAL CONTACT CLEANER STRIP (FOLDED), MM DECALS, MM RACING SLICKS (page 03)
TRACK METAL STRIP CLEANER - USE OFSPECIAL STRIP CLEANER WILL KEEP YOUR CARS RUNNING SMOOTHER AND FAST. (page 04)
BRUSH ADJUSTMENT - SPECIAL QUICK CHANGE SCREW DRIVER FITS ALL Model Motoring SCREWS - SPECIAL ADJUSTER TOOL KEEPS YOU IN THE RUNNING
1. Height of Brushes must be slightly below tires (Approx. 1/16 inch). Fig. 2
2. Height of both Brushes must be even.
If brushes are not properly adjusted, poor or intermittent contact with Road Conductor Strips will result, causing Cars to run at a slow speed or with a jerky motion.
Note: The same conditions will occur if Roadway is not clean. (page 05)
IMPORTANT - IF DIRT OR LINT BECOMES LODGED BETWEEN CONTACTS CAR WILL NOT RUN. CLEAN CONTACTS AS FOLLOWS: Insert contact cleaner strip between contacts and slide back and forth to remove carbon, dirt, lint and foreign matter. Contacts may be easily cleaned of foreign matter by lifting the contact arm and SLIGHTLY with a PIN, TOOTHPICK, or SMALL PENKNIFE and BLOWING BETWEEN CONTACTS. Caution: Lift contact arm SLIGHTLY - DO NOT OVERBEND. CUT OUT TO MAK ROOM FOR LARGER TIRES - ADD DECALS TO SUIT YOUR OWN LIKING (page 06)
Wheels - Everyone knows that if the center of a wheel turns the same number of revolutions each minute, the speed of a car depends on the outside diameter of the wheel. In this respect, Model Motoring cars resemble real cars, and so, larger diameter wheels in the rear will increase the speed of your car measureably B. Of course, you’ll have to remove the body, or at least cut away the rear fenders to install larger wheels C.
Model Motoring Slicks can do the trick for you, or even faucet washers. Generally speaking, a 5/8 inch outside diameter rear wheel will give you the best combination of speed and traction on the Ofiicial Model Motoring In-Store Race Course, although you may want to go to a larger diameter rear wheel if longer staright aways are involved. Don’t forget to make sure that ALL of the surface of the rear tires are on the road, not just a ridge. Some drivers have even tried puttingthree wheels together on each rear hub in order to increase traction on the turns D. It doesn’t add to the speed, but it sure looks impressive! (page 07)
Tires - One of the problems that bugsStock Class drivers is keeping the rear tires away form the car body. If they rub, you’ll be able to tell by watching the other cars finish in front of you. To cure it, spring out the sides of the body until they hold a set away from your tires.
In the Modified Class, where all drivers turn to large diameter slicks, the problem centers on soft rubber vs. hard rubber. No matter which you choose, watch for excessive bouncing from you rear tires F, as this may cause your Guide Pin to pop out of the roadway. You might also try cutting a tread into your drive wheels with a sharp knife to increase traction both on the straights and on the curves G.
Most important, no matter what tire you use for your rear wheels, clean them off before each race. Some drivers use a water and detergent soluion for this, but the point is to completely get rid of any dust particles that might cause slippage for the first lap or two H. Makes a noticeably difference! (page 08)
Actuator Reed Assembly - Along with large slicks for you drive wheels, the Actuator Reed Assembly is perhaps the most important single part of the Model Motoring cars that can bee altered to increase your speed. What we explain here is NOT guaranteed to work in EVERY case, but it will improve the operation of the cars in MOST cases.
By springing the loose end of the Actuator Reed Assembly up slightly with your fingernail J - yes, you have to remove the body first - place the blade of a small screwdriver across the part of the Reed that hangs down and push it gently toward the FRONT of the car K. Let the Reed snap back down into position. Now, turn the drive wheels in their normal direction (a sure way to pay for a new Reed is to turn the drive wheels backwards). You should hear, and feel, a slight clicking. By adjusting the Reed until you can barely hear this clicking, you will obtain maximum speed for your car.
In some cases, it increases the car’s speed to bend the Actuator Reed Assembly slightly upwards in the middle. This DOES NOT work on all cars, but if it does work on yours wou’ll know it immediately. The car will really MOVE!
Keep working for a finer adjustment with your Reed. It’ll pay off at the finish line! (page 09)
Friction - In Stock Class, friction can be reduced by putting a drop of oil on the front axle where it comes into contact with the frame M. Graphite will also accomplish the same results. The pick-ups are important in this area too, for only by adjusting them properly can your reach maximum speed. If they are too high, you will not be getting enough current in your motor, and the car will run with a jerky motion. If they are too low, you will see your car bounce like a Pogo Stick. Keep them as close to the bottom of the Brush Plate as you can without losing good contact with the track N.
In the Modified Class, you might try removing your front wheels and axle to reduce friction O. This way, you will be riding on your contacts ONLY and will not have any extra drag from your front wheels or tires. As an added attraction to using this wheels off system, your Guide Pin will sink deeper into the slot in the roadway which will reduce your chances of sliding out on the corners. (page 10)
Frame - The basic question to be answered is does a longer or a shorter wheel base increase cornering ability? Since there are two schools of thought here, at least with Model Motoring cars, all we’ll do is point out that there are three sets of holes drilled in the front of the Model Motoring chassis so that you can do some experimenting yourself Q. If you want to go further than that, two chassis can be spliced together, or one chassis can be cut shorter R, S. All it takes is a Zona saw or a hack saw, plus a drill. If width is of importance in your thinking about cornering, remember that most Model Motoring Race Tracks have a rule that cars CANNOT be any wider than 1 1/4 inch. Keep this in mind to prevent any unhappiness after you have spent to many days making your monster wider. (page 11)
Now that you’ve got the hottest rodder in town, don’t forget to register it in your hobby shop’s Model Motoring competition! If your name isn’t on the chart, you can’t compete. And if you don’t compete, you can’t win one of the terrific trophies he’s handing out to the top drivers in the neighborhood. Enter your local MODEL MOTORING COMPETITION, MODIFIED CLASS, now! Aurora Plastics Corp. 1962 - West Hempstead, Long Island, N.Y. (Back Cover)
