Use your new Scalextric cars on your old Scalextric
track and your old Scalextric cars on your new Scalextric track with
these simple hints and tips
Abstract
Scalextric (in one form or other) have been producing Scalextric
track and Scalextric cars since the late 1950s and over this time
several different standards have been used. This is for both the cars
and the track. However, some of the basic principles have remained the
same. The track has a slot and two conductor rails on each side. The
cars use the slot to guide them around the layout and electrical
contacts to touch the conductor rails. Finally the system voltage and
current requirement are similar too.
This article explains what is compatible from old to new and what is not, and what you can do about it.
Introduction
Over the years the track has a slot that has broadly remained
unchanged, the cars have a pin or blade that runs in this slot to guide
the car around the track. Each side of the slot there are two electrical
conductor rails who’s dimensions have broadly remained unchanged. The
Scalextric cars then have 2 contacts, usually made from flat braided
wire that touch each conductor to carry the electric current into the
car. The nominal electrical voltage has remained at 12 Volts to 14 Volts
for both the power systems and the motors in the cars and the current
draw has remained similar too.
This article considers the compatibility of cars and track produced from 1960 to the present day (2013).
Scalextric Track
The Scalextric track pieces provide several key requirements:
- A known surface for the cars to race on.
- A slot in order to guide the cars around the circuit.
- A method of supplying electrical current to the motors in the cars.
Mechanically the Scalextric track may appear quite different from old
to new and had several different standards over the years. The very
first track pieces produced were known as “rubber track” and wasn’t well
designed with poor fixings between the track pieces. In 1963 a plastic
track was introduced with good positive fixings between the track
pieces. This plastic track is now often referred to as the
Classic Scalextric track. In 2002 the track design changed to the
Scalextric Sport track
design which had an improved fixing method between the track pieces. At
the time of witting in 2013, this is the current track design.
Throughout this period the slot in the track and the conductor rails
have remained largely unchanged in specification which means the key
interface to the Scalextric car has also remained unchanged. One area of
difference is that the Classic Scalextric track range offered many
track pieces that contained obstacles such as chicanes, hay bails,
backed curves and even rocks. None of these are available to the same
degree with the Scalextric Sport track system.
Further, the Classic Scalextric track range had a deep graining on
the surface giving the car tyres good mechanical grip for cornering and
acceleration. With the introduction of Magnatraction the Sport track
range didn’t need such heavy graining and so has a much lighter surface
graining giving a smoother appearance and feel to the track surface.
- 1960 to 1962: Rubber track.
- 1963 to 2001: Classic track.
- 2002 to present: Sport track.
Classic Scalextric track and Sport Scalextric track use different
clipping arrangements to connect together. There is a special piece of
converter track that can be used to join together Classic Scalextric tack and Sport Scalextric track.
Scalextric Cars
The Scalextric cars have changed little in their basic layout
throughout this time. There is a method at the front of the cars to
locate or guide them around the track which is either in the shape of a
blade or a pin. The blade guides need to rotate in the underside of the
Scalextric car to allow the car to take corners while the pin guides
tend to be fixed and not rotate. With pin guides the pin is narrow
enough to rotate in the slot itself.
Each side of the
guide blade or pin there are two metal conductors, usually in the form of flat woven metal braids. These
braids
rub along the conductor rails providing the necessary two electrical
contacts between the track and the car. The motor is then connected to
the braids with short lengths of wire. The motor drives the rear axle
via a simple gear mechanism which in turn drives the car forward.
Older Scalextric cars tended to have plenty of up/down movement of
their front axles and sometimes the front wheels were no where near the
track surface. The front of these cars rests solely on the guide and
braids. Later Scalextric cars have removed this movement with most
running fixed front axles where the front wheels run on the track
surface. This is much more realistic as the front wheels rotate as the
car moves along the track layout.
In more recent times
Scalextric Digital
has been introduced. In Scalextric Digital cars there is a small
electric circuit (chip) fitted to the car where power from the track
goes into the chip and the output from the chip drives the motor. The
chip also drives an LED which points downward and which communicates to
track pieces to change lanes.
Electrical
The basic electrical specification has remained unchanged from 1960
to the present. The analogue system voltage is 12 Volts to 14 Volts with
a series resistive control method. The electrical current drawn by the
motors has reduced over the years with the introduction of more
efficient motors.
Scalextric Digital uses a completely different way to control the
cars. Constant power is supplied to the whole track layout and the cars
are controlled with digital signals that again go around the whole
circuit.
Compatibility – old cars on new track
There are several factors concerning the use of old Scalextric cars
on new Scalextric track. The first of which relates to the change in the
surface grain from Classic to Sport track. The older Scalextric cars
without Magnatraction will have little mechanical grip from their rear
tyres making acceleration and in particular cornering difficult. This
can be overcome by fitting
Magnatraction magnets and/or
MAX Grip tyres.
With some ingenuity magnets can be fitted to all of the older
Scalextric cars and MAX Grip tyres are available for all the older
Scalextric cars too.
The other difficulty concerns the pin guides. The later track layouts
used obstacles such as crossovers and the modern Scalextric Digital
layouts use lane change pieces or points in the railway vernacular.
Essentially, the pin guide doesn’t provide any directional stability
which means as a car with a pin guide passes over a crossover piece of
track it stands a good chance of moving to the wrong lane or slot. To
use Scalextric cars with pin guides on later layouts either the lane
change or crossover pieces of track need to be removed from the layout
or the cars can be converted to use guide blades instead of pins.
The older Scalextric motors tend to consume more electrical current
than the newer Scalextric cars. As such the newer power supplies
associated with newer Scalextric layouts may not provide sufficient
current to allow two older Scalextric cars to race at full power.
Non digital Scalextric cars cannot be used on the Scalextric Digital
system as the electrical systems are not compatible. NOTE, a traditional
analogue Scalextric car may sustain permanent damage if placed onto a
live Scalextric Sport track layout.
Compatibility – new cars on old track
On the whole it is easier to operate new Scalextric cars on the older
Scalextric track layouts. Electrically they consume less current and
all have guides blades rather than pins. The key problem concerns the
fixed front axle as this prevents many of the older obstacles from being
used. As the front wheels traverse an obstacle they lift the contact
braids away from the conductor rails on the track and the car stops.
Obstacles that cannot be used with new Scalextric cars include:
- Banked curves.
- Hump backed bridges.
- Bumpy or rocky track.
Additionally, because of the front axle the new Scalextric cars need a
very flat surface on which to operate. Old warped, bent or out of shape
track pieces may cause problems for the newer Scalextric cars.
Scalextric cars fitted with a
Scalextric Digital chip can be used on analogue layouts.
General
On the whole there is very good compatibility between the old and new
Scalextric cars and Scalextric track. Newer Scalextric cars can run
well on older Scalextric layouts as long as the layout is flat and
contains no sudden changes in height such as rocks or banked curves.
Older cars may need some updates to run well on the newer track
especially concerning grip. Scalextric cars with pin guides need to
avoid layouts with any form of crossover or lane change method.
About the author:
Gary Harding has been working with Scalextric cars for over 35 years
and now operates Scalextric Car Restorations in the UK. Scalextric Car
Restorations is a Worldwide internet based business that offers for sale
high quality Scalextric cars and Scalextric parts from the 1960s to the
present day. All the restoration work is carried out to the highest
standards with the highest quality parts available. Only the best cars
are selected and the final result is a car that is genuinely like new.
Further help and advice relating to this article or Scalextric cars in general can be found at:
http://www.scalextric-car.co.uk
