3 1/10TH I.C. 200mm NITRO TOURING-TECHNICAL SPECIFICATIONS
3.1 The class run will be the “200mm NITRO TOURING CAR” which will be 4WD. Only one brake, working on the central power transmission, is allowed. No second or individual brake system(s) for front and/or rear axles or single wheels is allowed.
3.2 Maximum 2-speed gearbox allowed.
3.3 All cars must have a de-clutching device and have an operating brake capable of stopping the car and holding the car motionless with the engine running.
3.4 The use of .12 (2.11 cc) engines only will be permitted. They shall be air-cooled, with front rotary valve, two-stroke induction. The engines may have a maximum of four (4) ports in the cylinder liner, including the exhaust port, seen with the piston at lowest position. Additional slits or holes in the liner for cooling purposes are allowed as long as they are not visible and do not reach the top of the piston at lowest position. (B.D.C.)
No form of forced induction is allowed or any form of variable port timing. Only glow plug ignition is allowed. One additional gap in the bottom (skirt) of the piston is allowed. No holes in the piston Where ever we say hole in this rule we mean a hole that is surrounded completely by material.
The maximum carburettor size is 5.50mm.
From 2009 on, INS BOX and 3-chamber muffler will be mandatory
3.5 Engine capacity is to be maximum .12 (2.11cc) only.
3.6 Standard pull-start is optional.
3.7 Engine internal modifications are allowed as long as they are within the parameters of Rules 3.4 and 3.5.
Tail pipe maximum internal diameter* 5.20mm.
Tail pipe minimum length 10.00mm.
The tail pipe must be oriented on or below the horizontal.
*This dimension includes a tolerance to account for manufacturing variations in commercially available tubing.
N.B. The mufflers have to bear their homologation numbers during the entire competition.
3.9 Minimum weight without fuel: 1725.00 grams (including transponder).
3.10 Fuel tank capacity to be 75.00cc including all fuel tubing, filters, etc. No loose inserts allowed inside the tank
3.11 Touring car bodies shall be accurate 1/10th scale representations of full-size touring cars, which have been homologated & approved by the F.I.A. for use in the following:
FIA 2-litre Championship - German Touring Car Championship - Australian Touring Car Championship - North American 2-litre Super Touring Car Championship.
Homologated muffler of approved double chamber design, including silencer chamber must be fitted having the following dimensions:
Refer to the IFMAR Approved Body List.
3.12 The front bumper must follow the body contour and must be constructed so as to minimise injury that may result from being hit by a car. The bumper must be made from foam rubber or a flexible plastic material.
3.13 The body must be made from a flexible material and be painted properly. All windows must remain clear and not be painted over or be semi-transparent.
3.14 Bodies are not to be cut above the lower bumper line at the front or the back or above the bottom line of the doors. Details of all front and rear lights, grills, air intakes and windows must be clearly contrasted from the surrounding paintwork.
3.15 Only the following AIR HOLES and sizes are permitted in the body shells:
One (1) hole, for cooling may be cut in the front windscreen, (not intruding on either the roof or bonnet), with a maximum opening of 50% of the total windscreen area.
15.00mm (maximum diameter) hole in the roof for glow plug access.
Both front side windows and the rear window can be removed for ventilation, except for the side rear windows, which must remain intact.
Re-fuelling hole, maximum 50.00mm diameter, to have a 5 mm spacing from the windscreen hole.
A hole with maximum diameter of 35.00mm is allowed just above the engine cooling head for easy glow plug access, and can not be combined with any other hole, minimum distance 5mm.
Small holes can be made for the exhaust pipe, Transponder and radio antenna.
No other holes are permitted.
3.15 Roll-bars (roll-over bars) must be kept under the body.
3.16 No parts of the car, except the muffler outlet may protrude outside of the body shell when viewed from above.
3.18 Under body/chassis aerodynamic aids of any nature are not allowed.
3.19 General Dimensions:
Description Minimum (mm) Maximum (mm)
Wheelbase 230.00 270.00
Width (without body) 170.00 200.00
Width (with body) 175.00 205.00
Length (inc. Body & Wing) 360.00 460.00
Height (to top of roof) with 10mm spacer under the chassis plate
Wing width Inclusive 125.00 200.00
Wing Chord 50.00
Wing Endplate (equal size) 35.00 x 50.00
Wing Overhang (at rear) 10.00
Wheel Dia. (excluding Tyre Bead) 46.00 50.00
Wheel width (including bead) 24.00 30.00
3.20 One wing and one spoiler may be mounted to any car (if the original full-size car had more, it is allowed to do the same). Wing and spoiler must be made from a flexible material. Wing and spoiler must not be fixed to body with piano wire. Basically, they must be mounted to body directly. Wing and spoiler may not protrude outside the maximum height and width of the body (including the side dams). Rear wings must be mounted in the same place as was intended by the body manufacturer and to be painted. The overhang must not exceed 10.00mm at the furthest point, to be measured from boot lid. The height of the wing may be adjusted but the wing, including endplates must not extend higher than the roofline. Wings (excluding endplates) are to be of single moulded construction (no flat-packs/bend your own). Gurney strip (if allowed) may not exceed the width of the wing and have an edge not more than 5.00mm high. Total cord of wing, plus the strip is 55.00mm.
3.21 Foam and/or Rubber tyres may be used. Any materials used in, or on, the tyres must not damage the racing surface.
Treatment of the tyres with additives is prohibited.
3.22 Quick – change wheel systems are not allowed. Wheels must be fixed by a screw or nut The screw or nut installed in the wheel rims may not extend beyond the exterior of the wheel rim.
3.23 Fuel will only contain methanol (methyl alcohol), lubricating oil and a maximum of 16% nitro-methane in volume. The specific gravity of the mixture may not be heavier than 0.87. An IFMAR approved fuel tester, e.g. Nitromax 16 will be available to verify fuel’s conformity to the rules at Technical Inspection. Any fuel adjudged to be dangerous by the Organiser or Race Director may not be allowed.
3.24 The aerial support must be flexible. Carbon, GRP, steel, etc. are not allowed.
3.25 Only two (2) servos are allowed. Frequency must be legal as specified by Race Director. Drivers must have more than one (1) frequency available. Under no circumstances shall a transmitter be taken onto the track.
3.26 TECHNICAL RESTRICTIONS (Not allowed)
4 wheel brakes.
Liquid cooled engines.
More than two (2) servos.
No more than 2-speed transmissions.
The use of electronic gyroscopes.
3.27 All measurements referred to in these rules are maximum or minimum values