Slot Cars Adelaide

There is a large variety of cars available for this class. They go very well standard and fitting 

urethane rubber tires and reducing the maximum down force 240g .

To achieve this low downforce I suggest with Scalextric Cameros & mustangs to replace the standard 2mm thick magnet with a  Scalextric 28mm x 7.65mm x 1mm thick magnet (W8695- pkt10).Also Professor Motor have a 28x8x1mm gold magnet  # PMTR1030 available singularly (about $8)             Both magnets are available from Adelaide slot car centre.

Place some thin plastic less than 1mm thick between the chassis and the magnet. I use the magnet  position just in front of the motor. this will result in the downforce between 200 & 220 grams.

Tune the magnets by attaching small disc magnet e.g. 4mm x 1mm on top of the bar 1mm magnet to get closer to the 240g allowed. This make a nice handling car much the same as a non magnetcar on a ferro painted track when using only  urethane tires and no silicon tires on the Carrera track. 

Motor RPM max 20,000rpm.   If the car as standard is fitted with a

higher reving motor a resistor may be fitted to bring revs back to 20,000rpm.

The cars above where all fitted with Paul's Urethane tires.

The magnetic downforce was altered on all cars to under 240g.

Some have 20.000rpm motors fitted and some are standard as out of the box.

Most bodys where left slightly loose an gears & bearings where lubed.

The results show that all cars lapped between 8.4secs and 8.8 secs.

Although I think all the cars have the potentilal with some more work to get 8.4 or below.

The Scalextric Mk 1 Lotus Cortina managed the fastest lap of 7.4 Secs. This is a standard motor.

 It handled well but I had to be carefull when power was applyed or it will take off into a barrell

roll. So it took a fair bit of skill to drive fast - quite easy at around  8.7sec  lap.

The Fly Racing Porsche 911RS  needed some more power so I fitted a ninco NC5 20,000rpm.

A lot better but I am not convinced it is the NC5 is the quickest motor. The motor is inline.

I removed the sprung suspension and fitted small "o" rings instead so the chassis was  almost ridged

 This enabled the downforce to be added in a better place than in front of the engine.

This was the best handling car of them all. it managed 8.5 secs . If it had the Cortina's speed on the

straight  it would be very quick. Over all this is a race winner.

The Scalextric Moffatt Trans Am Mustang.

the original motor seemed to lack power when compaired to a standard Camero.

So in went the NSR shark 20K motor. It handled it well and is only slightly slower

at 8.6 sec lap. Handles well but power application is critical comming out of a corner. May need a

front magnet as it can hop lanes fairly easily with the nose lift. Nice to drive though and if one is a

good driver it has little problems.  A Scalextric Camero with the same motor would be very similar

butI only had standard ones and they managed 8.7 secs

Next came the Scalextric Escort . Also a 8.6 sec lap Very similar to the Cortina and will produce the

same times with some more devolpment. You don't need to get a more powerful engine you would

only get into more trouble. Also launches itself if the power is applied in the wrong place.

A very quick car for those with very good driving skills.

Fly Porsche 911RS Motor behind the rear axle - like the real one. Definetly needs the magnet in the

front to stop the noise lifting the guide out of the slot. This was more evident after replacing the

"Sunday afternoon" standard motor with a NSR Shark 20K Does handle very well and did an 8.6 sec

lap comfortably. Also need to apply power in the right place or it can take off. I think it will be running

in the high positions in race conditions. 

Spirit BMW 2002  This took a bit of work but it is a really quick car, It is fitted with a 23 k motor

standard and the magnet was in front of the motor - now just in front of the rear axle.

I used reduced voltage to simulate a 20k motor and it did an 8.6sec lap. It handles very well

With full power it did 8.2 secs. Will have to limit the motor with a resistor when I work out the correct

value for 20,000rpm.  

The rest of the cars where all standard motors an did 8.8 sec laps. The Fly Alfa GTam is front

engined.It has some unusual handling traits so will have to do some development there.

It feels nice to drive when it likes a corner .

If it doesn't it will flick the tail out or do a barrel roll. It still did the odd 8.6 sec.

lap when tires warmed up after 30 laps.

I have yet to test the new Scalextric LH Torana. I guess it will perform very similar to the Cortina and

the Escort as it is the same motor and chassis configuration 

Well that is the tests - if you have any inquires email me - John   swingdance1@bigpond.com

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