Trans Am 1/25th scale cars .

Body  

Any 1/25th model kit ( AMT , Revell Monogram etc ) The body style must be as used in the 1:1 Trans Am racing series from 1966 - 1972 Trans Am Series " Golden Era " bodies are to be 1/25th scale bodies only with the exception of the 2 litre class cars which on approval may be of 1/24th scale depending on the overall body size   eg Tamiya Mini 1/24th scale.   Bodies are to be painted to mimic the style and colours of the 1966 - 1972 era and must have a minimum of 3 race numbers on the body . The kit window plastic/glass must be used in the front and rear window areas . No body modifications allowed eg flared guards cutting and widening of the body or shortening of the body , the body dimensions must remain as it came in the kit from rooftop to sill panels . The removal of  head / tail lights is ok but the holes must filled and painted to reseamble lights as Trans Am cars didn't race with lights . Bumper bars can also be removed and replaced by plastic card / sheet to reseamble a cars undelying panels.

Interior

The full body kit interior is prefered and can be modified to clear the motor and wheels by cutting out the rear seat area and gluing in flat plastic sheet , a vacuum formed interior is allowed but the body kit dash or a hard plastic resemblence of a dash is to be glued into the body shell.  The fitting of Roll bars , fire extinguisher etc are encouraged to mimic a real 1:1 race car . A painted 3D driver figure must be put into place , Vacuum formed interiors must have a 3D driver figure with a period helmet prefered over a modern full face helmet style.

Chassis

Only MJK laser cut chassis - part numbers 010 , 015 sidewinder motor mounted or 012 inline mounted are to be used except where the wheelbase / size of the car needs a shorter chassis .eg Tamiya mini , Datsun 1600 , Porsche 911 or similar smaller sized Trans Am cars of the era.  A MJK 1/32 scale adjustable chassis is allowed for these bodies inline or anglewinder motor mounting

Motor

Plafit Fox II motors only in the Trans Am class

Gearing    must be 48 pitch gears only no fine 64 pitch gears allowed

Gearing on the 010 and 015 sidewinder chassis is limited to 8 or 9 tooth pinion and 40, 42 or 44 tooth spur gears - gearing on the 012 chassis is 8 or 9 tooth pinion and 31 ,33, 35 or 37 tooth crown gears All cars running the 012 , 010 or 015 chassis must use a 1/8th axle only - gearing on the 1/32 adjustable chassis is  8, 9 or 10 tooth pinion 32, 34, 36, 38 tooth spur gear 3/32 axle only

Wheels , Tyres , Axles and Axle bushes

All cars are to use 13mm MJK alloy rims and approved MJK tyres for the class - with the exception of the smaller bodied cars running on the 1/32 scale chassis rims and tyres are to mimic the true scale of the car eg Tamiya mini 10x 9 rim with 22x10 tyre buffed to a smaller size if needed to mimic a real size for the body style .  All axles must be solid one piece - no split front axles - no cambered front wheels

Chassis track clearance

All chassis must have a minimum track clearance of 2mm.

Body Clearance

All bodies are to have 3/16th of an inch 4mm clearance from the track at the body sill panels

 The 1/25th and 1/24th NASCAR class is based around the build rules from Southern Slotcar Raceway - SSR is a 6 lane track located in the southern suburbs of Adelaide .

Body  

Hard plastic 1/24th or 1/25th model bodies painted to mimic real 1:1 scale NASCARS a minimum of three race numbers to appear on the body

Interior 

As much as possible of the full model kit interior with 3D driver figure must be used

Chassis  

Open chassis but MJK "Dogbone style chassis" is prefered

Motor    

26d , 36d , Parma 16d , Plafit Cheetah II , Plafit Fox II motors are all ok

Gearing   

Open gearing generally around 4:1 - 5:1 ratio

Wheels , Tyres , Axles and Axle bushes 

Wheel size to be in scale with the body - Tyres AMR or MJK rubber - Axles open but generally 1/8th - bushes No ball bearing type rear axle oilite bushes only

Chassis clearance  

2mm minimum track clearance

Body clearance 

Body heights should mimic the 1:1 race cars of the day (3/16th of an inch /4mm under the body sill panels) 

Body

A hard plastic model kit body 1/24th or 1/25th scale painted to mimic the style of the 1:1 race cars of the era 1948 - 1972 a minimum of three race numbers to appear on the body

Interior

As much of the model kit interior with a 3D driver figure is prefered but a 3D vacuum formed interior is ok

Chassis

Open chassis  - but MJK sidewinder chassis is the prefered option to make the cars as even as possible in performance

Motor

26d , 36d , Parma 16d , Cheetah II or Fox II motors are ok but the prefered motor is a Parma Super 16d

Gearing

Open gearing generally in the 4:1 - 5:1 ratio range 9:46 is the general ratio with a Parma S16d motor

Wheels , Tyres , Axles and Axle bushes

Wheel size to be in scale with the body - Tyres AMR or MJK rubber - Axles open but generally 1/8th - bushes No ball bearing type rear axle oilite bushes only

Chassis clearance  

2mm minimum track clearance

Body clearance 

Body heights should mimic the 1:1 race cars of the day (3/16th of an inch /4mm under the body sill panels)  

Body   

Hard plastic model kit bodies , painted in the style of the 1:1 Sebring / modern sportscar style with a minimum of three race numbers on the body

Interior

A full model kit interior is prefered but a vacuum formed 3D interior is allowed

Chassis 

Open chassis design

Motor  

Plafit Cheetah II motor or Plafit Fox II

Gearing 

Open gearing generally 4:1 - 5:1 ratio

Wheels , Tyres , Axles and Axle bushes

Wheel size to be in scale with the body - Tyres AMR or MJK rubber - Axles open but generally 1/8th - bushes No ball bearing type rear axle oilite bushes only

Chassis clearance 

2mm minimum track clearance

Body clearance 

Body mounted to mimic true scale heights 1/8th of an inch / 3mm track clearance

*NOTE* all cars must have working head lights and tail lights as 1/2 the race is run in night time conditions

This car class is built to race in a once a year teams event at the Southern Slotcar Raceway (SSR) but can also be raced at Beachside Model Raceway under the same format / build rules as required for SSR

Body 

A hard plastic 1/24th or 1/25th scale model kit body only , painted to mimic the 1:1 race cars of the Lemans Era they represent , a minimum of three race numbers must appear on the body

Interior

As much as possible of the model kit interior must be used and a 3D driver figure must be used

Chassis

MJK LeMans chassis only

Motor

Parma black endbell "Deathstar" motor only strictly no motor modifications !

Gearing

 9:44 or 9:46 ratios are the only options - 48 pitch gears only

Wheels , Tyres , Axles and Axle bushes

Wheels are to mimic the 1:1 race cars of the era , special red dot and blue dot MJK tyres are issued on the night at SSR for the event and at Beachside Model Raceway the same tyres are used in this car class , Axles are 1/8th only , oilite bushes only NO ball bearing type rear axle bushings allowed

note -  During the LeMans race event a compulsory tyre change must be done by all teams

Body

A hard plastic model kit body of 1/24th or 1/25th scale , painted and modified as you like its a hot rod !

Interior

As you like but must be 3D with a driver figure

Chassis

Open chassis

Motor

Open motor class generally 26d , 36d , Parma 16d , Plafit Cheetah II or Fox II motors some early Pitman motors have been used and are welcome however no group 12 or strap type motors please

Gearing

Open gearing

Wheels , Tyres , Axles and Axle bushes

Wheel size to be in scale with the body - Tyres AMR or MJK rubber - Axles open but generally 1/8th - bushes No ball bearing type rear axle oilite bushes only , any gear pitch allowed

Chassis clearance

2mm track to chassis clearance is a minimum

Body clearance

1/16th of an inch is the absolute minimum clearance - " If it scrapes the track , its off the track"

This is a good class for re using a body that may have been damaged in another class - glue it up and cut the guards out etc then paint on some dirt splashes to hide the damage or even get a dremmel out to give it some more race dents and scratches to resemble a dirt racer .  Great car class for door to door hard racing and a bit of panel bashing , " Just glue it up again and race it next week "

Body

Any era 1920s - 1970s hard plastic model kit 1/24th or 1/25th scale - modified bodies are encouraged , built to mimic a 1:1 race car of the type raced as a speedway style car or off road style car , three race numbers on the body please

Interior

As you like in 3D with a driver figure

Chassis

Open chassis

Motor

Open motor

Gearing

Open gearing

Wheels , Tyres , Axles and Axle bushes

Wheel size to be in scale with the body - Tyres AMR or MJK rubber - Axles open but generally 1/8th - bushes No ball bearing type rear axle oilite bushes only

Chassis clearance

2mm minimum chassis to track clearance

Body clearance

1/8th of an inch body to track clearance

Body

Any hard plastic model kit 1/24th or 1/25th scale , painted to mimic the race cars of the era with a minimum of three race numbers on the body - no body modifications unless its to copy a "real" 1:1 race car

Interior

Any 3D interior can be used

Chassis

Any chassis inline configuration

Motor

Early 36d motors mounted inline

Gearing

Open gearing inline configuration

Wheels , Tyres , Axles and Axle bushes

Wheel size to be in scale with the body -  ( Narrow tyres ) AMR or MJK rubber - Axles open but generally 1/8th - bushes No ball bearing type rear axle - oilite bushes only

Chassis clearance

2mm track clearance between chassis and the track surface

Body clearance

1/8th of an inch between the body and the track

 eg ( Grand Prix , Formula 5000 and Indy cars )

Body

A hard plastic model kit 1/24th or 1/25th scale painted to mimic the 1:1 race cars of the era with a minimum of three race numbers

Interior

3d driver figure and dashboard , steering wheel from the model kit

Chassis

Open chassis motor must be mounted inline

Motor

26d , 36d , Parma 16d , Plafit Cheetah II , Fox II

Gearing

Open gear ratio inline configuration only

Wheels , Tyres , Axles and Axle bushes

Wheel size to be in scale with the body - Tyres AMR or MJK rubber - Axles open but generally 1/8th - bushes No ball bearing type rear axle oilite bushes only

Chassis clearance

2mm track to chassis clearance

Body clearance

To suit the look of the era the car represents - prefered measurements for track clearance below

1950s 3/16ths of an inch clearance (4mm)

1960s 1/8th of an inch clearance   (2mm)

1970s 1/16ths  of an inch clearance (1mm)

Up to present day 1/16ths of an inch clearance - remember  " If it scrapes the track , its off the track "

Body

A hard plastic model kit or resin body 1/24th or 1/25th scale , painted to represent a " real " car that ran at Mount Panorama ( Bathurst 1000 )      Any era including present day V8 Supercars

Interior

A hard plastic model kit is prefered but a 3D vacuum formed interior with driver figure will do

Chassis

Open chassis

Motor

26d , 36d , Parma 16d , Plafit Cheetah II , Fox II

Gearing

Open gear ratios and motor configuration ( inline , anglewinder , sidewinder )

Wheels , Tyres , Axles and Axle bushes

Wheel size to be in scale with the body - Tyres AMR or MJK rubber - Axles open but generally 1/8th - bushes No ball bearing type rear axle oilite bushes only

Chassis clearance

2mm track to chassis clearance

Body clearance

To mimic the "real" 1:1 race car in height please 1/8th minimum please

Remember " If it scrapes the track its off the track"

At Beachside Model Raceway the FJ & FX Holden class is raced in the following format ;

Body

A 40 thou vacuum formed 1/24th scale body from " Sunset Bodies " , the body ideally is to be painted to represent the appearance of the early Holdens as they would have raced in 1948s through to the early 1950s with four numbers on the body ( front doors , boot lid and bonnet ) 

Interior

Cars must have a painted 3D vacuum formed " Sunset Bodies " interior.       see the links page for "Sunset Bodies"

Chassis

Any chassis is allowed

Motor      motor mounted inline only

Any "china" motor - the prefered motor is a Plafit Cheetah II 

Gearing , Wheels , Axles , Tyres and Axle bushes

Gear ratios are open to the builder but must be 48 pitch only , Wheels are to represent a true scale to suit the 1/24th body shell and ideally wheel inserts to represent a wheel that was available in the 1948 - 1953 period.  Axles must be 1/8th of and inch , Oilite bushes only no ball bearing type axle bearings.  Tyres are the AMR or MJK narrow width tyre . There is a choice to use the lower profile tyre used on the 1/25th scale Trans Am cars or the taller version of the same tyre . Both tyre variants are 8mm wide

Chassis and Body track clearance

All cars are to have a minimum of 2mm track clearance - Chassis and Body

*** note in the near future other early era vacuum formed body styles may be run in this class ***

eg Valiant "S" series 1962 and the Ford Falcon coupe 1963 although these two bodies are newer than the Holden FX and FJs 1948-1956 it will allow the old Holden vs Ford vs Chrysler battle into this car class . This idea has is evolving because some of the drivers can't handle driving Holdens - Too fast for them