Tuning a Carrera 124 Digital car for non-magnet racing

 

 

 

I have noticed more and more people buying and racing the Carrera 1/24 cars lately.   I prefer to race these without the magnets.  I have found this to be the easiest way to make the cars equal.  At the moment I have about 5 body types running nearly identical laps times.   Here are a few tips you can use when setting yours up for non-mag racing.
 
First you'll need to choose the weapon of your choice.  I chose the Porsche.  I like these because they are light and give you more options when adding weight.  We'll get back to that in a little bit. So here we go.


 

Lets flip this bad boy over.  The first thing to do is separate the body and chassis by removing the 4 screws shown below.

 

This is what your stock Carrera Porsche will look like once you've opened it up.  KEEP TRACK OF WHERE THE SCREWS CAME FROM!!  The first time it can be confusing.  


 
Now remove the 4 screws circled below.  The two screws on the right hold in the motor pod as well as the front magnet.  Remove the magnet and place the magnet holder back in the chassis.  
 

Flip the motor pod over and you'll see 2 more screws, these hold on the last magnet.  Unscrew those and slide the magnet out.


 

Once the two screws are removed, pop off the axle carrier seen below.  This is where you will have to decide how skilled you are.  Sometimes the axle carrier is loose on the axle bushings.  It's not a big deal but some people like it to be nice and tight.  To do this you will need to heat up the carrier with a mini torch or a lighter and bend it so the bushings fits nice and snug.  Personally, I've never done it but I've watched Rubirosa do it a few times.


 
I normally put a dab of oil on either end of the motor as you can see in the following 2 photos.


 
This is when the tedious part of this project begins for those with the luxury of a tire truer.  Place the axle on the truer and sand the wheels until you have even wear all the way around.  In the first photo you see a partial truing of the rim.  In the second you will see what should be true/truer rim.  Do this to the front and rear wheels.  Be very careful not to sand your gear.  Been there done that, oops.  The axles/wheels are two areas Carrera could use a little improvement.  The wheels don't always get pressed on square so the truing is especially important. 
 


 

Do the same thing to the tires, front and rear.   Here are the tires made by Rubirosa and sold exclusively at Cincyslots.   

The first photo you see the partially sanded front tire and in the second the completely sanded tire.  Once the tires are sanded all the way around, take an old shaver or file and round the edges of the tires like you would a Supertire.   Yes, the fronts too!

 

While I had the rear assembly apart, I took some hot glue and placed it in the corner of the chassis to hold the light wires in place as seen below.  Some people have reported that over time the rotation of the axle wears through the insulation. This is a very easy fix.


 

Before reinstalling the front and rear axles in the car, be sure to lube the axle bushings.

 
Ahhh, we're almost ready to rock and roll.  Get your scale.  We/I try to keep my cars between 235gm-240gm.  This is when your tuning knowledge will come in very handy.  There is no really right way to do this.  It's trial and error.  So whatever works for you.  I prefer, for the moment to put a bulk of the weight in the center with a little in the rear and a little in the front near the guide.  When the glue has set, put everything back together.

 
I'm sure there is more you can do but this is a good place to start.  Here's what you can end up with.


 
SLOT.IT SHOES ON CARRERA CARS

This tip is recommended for Carrera non-mag racers.  The tin plated brushes are smoother and not as stiff as the Carrera brushes.

Tools and parts needed:

Small flat head, needle nose pliers, Slot.it tin plated braid, Carrera braids.

Use your small flat head to peal back the brass.

Now used the needle nose to straighten the sides.  The Carrera brush is on the right and Slot.it on the left.

Insert the Slot.it tin plated brush.

With the needle nose, crimp the brass holder closed.

Fold and use.

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