EAHORC 2011/12 Rules
Core rules
Applies to all cars running in Open wheel, Nascar, LMP1 and Modified classes (For Pro-Mod rules click here)
All entered cars must fit through an EAHORC metal 34mm width gauge and be 17mm from centreline to sides, unless specifically exempted.
Cars must start all races with body properly attached, and four tyres as defined by the current rules and all items of the car that can be considered it's parts to be present and intact, unless expressly exempted. Where pick-up shoes are part of a chassis design these must be fitted. There must be no sharp edges on the cars. Race control reserve the right to ignore any laps completed by cars that do not comply.
Gear boss spacers are permitted, but other non-factory fitted shims or spacers are not permitted.
Bodies may be ballasted, but ballast must be glued firmly in place. Bodies may be lowered, lightened, and otherwise worked on to improve clearances and durability, but must maintain the outward integrity of the original.
Bodies must be constructed entirely of cast resin or plastics, must not be glued to the chassis or any of it's components (body clips are not considered chassis components). Wings (including posts, and endplates where present) must be intact at the start of all races, unless fitted to club cars or otherwise exempted, this applies to all classes.
Nascar Bodies must be of a shape & colour scheme passed by race control to be an acceptable 'real' Nascar. These must be as featured in the Grand National series, and all proceeding 'top-tier' series during the naming rights era (1971 to present day), the current 'second tier' American series (Nationwide), from the NCATS/CASCAR series, or Australian Nascar series. Bodies must be from 1968-present day and featured in a race (as opposed to being fantasy schemes, or only used in non-race sessions). For further details click here.
Repaints of open wheel cars must feature a separately painted and/or decorated driver.
Any method of body fitment is permitted with any chassis. Devices designated as clips are not considered a chassis part and must not be glued to chassis, they can but do not have to be glued to bodies.
Armatures must be stock and therefore not be 'worked up' in any way (examples: commutator tied-off, windings or comm epoxied, windings removed, commutator cut or diamond-trued, solder on tabs beyond factory-applied).
Armatures with balance marks or material removed from rotors by any means are not permitted.
Armature timing may not be altered, except via legal devices fitted as part of chassis.
Rolling-element bearings are not permitted.
Any make of pick-up shoe and spring (not spring plate) is permitted. For Open wheel and Nascar shoes must be unplated. Shunts are not permitted. Parts may be reshaped but no material may be added or removed.
Dust guards, lights, and axle retainers may be removed.
Any make of non-metal gears (crown or pinion) are permitted, but they may not be altered from their factory specification in any way other than as a result of the usual 'lapping in' procedures. Lightning or sanding/boring to improve fitment is expressly forbidden.
Pinions must have 7 teeth, crown gears must have 25 teeth, unless other options are specified. Any make of gear boss is permitted, chassis may run without a boss.
For chassis with barrel brush systems, any make of brush and brush spring is permitted in all chassis. Barrels however must be stock and unaltered unless expressly permitted.
For chassis with endbell brush systems, in all chassis all parts must be stock, and unmodified, unless changes are expressly permitted . Endbell tabs may be reshaped but no material removed or added.
Tyres must be single compound and black in colour. Sidewall writing and detailing based on real tyres is permitted (must be class-correct and body-correct).
O-rings or 'thinnies' may not be used as front tyres, unless expressly permitted. All permitted tyre types may be re-shaped or reduced in diameter and width.
Any make of wheels and solid axle is permitted, unless expressly prohibited, no sharp edges will be permitted. Independent Front ends are not permitted.
Wheels may be built up with tape to aid tyre retention.
Any make of guide pin is permitted, one per car, but it must only have one protuberance. The protuberance must have a consistent outside diameter (no blades etc), unless other designs are expressly permitted. It is permitted to reduce width or length of the protuberance.
Completely or predominantly clear bodies are not permitted in any class.
No part of the chassis may be cut, sanded, drilled or otherwise interfered with. All wear must be by natural means only, no components other than pinions may be glued in place.
All magnets fitted must be stock to the chassis, no material added or taken away, and fitted in the stock position. Regular shaped traction magnets may be turned over in the chassis so long as they do not sit lower as a result
Permitted chassis:
| Class/chassis | Tyco/Mattel 440 'family' | LifeLike T | Marchon MR1 | Artin F | LifeLike M/Rokar X |
Autoworld Super III |
Scalextric Micro | Tomy Turbo/Irwin Turbo+ | Tomy SG+ | Tomy SRT | A.F.X Mega-G MG17 | A.F.X Mega-G MG15 |
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Chassis rules:
A.F.X Mega-G MG17
This chassis is legal in Open Wheel, LMP1 and Modified classes.
| For Open wheel and Modified both the MKI and MKII versions of the chassis are permitted, but for LMP class only the MKII is permitted. |
| For Open Wheel bodies must be original A.F.X Panoz DP01s, these must feature an accurate or at least prototypical race car colour schemes (race numbers, sponsors etc). 'Fantasy' repaints and redecorations are permitted. |
| In Open wheel cars must start all races with front wings and down posts present. |
| In Open Wheel where a guide device other than an ISU one is used the bodies' front wing must not exceed a width of 24.9mm (0.980'') and must be at least 20mm (0.787'') wide, and the Chassis must be fitted with a Wizzard front axle/wheel/ ''thinnies'' tyre assembly (part # WS13B) set to a maximum width of 31.35mm (1.234''). |
| In Open Wheel where an ISU guide is used front wing must be complete and unaltered. Any axle/wheel combination is permitted. |
| In Open Wheel height of rear tyres/wheels combined must not be less than 11.506mm (0.453''). |
| If the WS13B is used outer surface of wheel must be painted black, or a colour to match the rear wheels. Patto or Martech wheel masks are also permitted. This applies to all classes. |
| Only standard Mega-G armatures are permitted. |
| Any make of plain bearing (bush) may be used with this chassis. |
| For LMP class only completely unaltered LMP1 bodies manufactured by A.F.X are permitted. The Audi R10 may run so long as the body width does not exceed 34.5mm. |
| For Modified any gear ratio is permitted. |
Tyco/Mattel 440 'family'
This chassis is legal in Open Wheel and Modified classes.
| In Open wheel bodies must feature an accurate or at least prototypical race car colour schemes (race numbers, sponsors etc) with separately painted driver. |
| In Open wheel cars must start all races with front wings and down posts (where relevant) present, with the exception of the Tyco Chaparral 2K body. |
| Only standard Tyco armatures with red windings are permitted. |
| Any make of Plain bearing (bush) may be used with this chassis. |
| For Modified class O-rings or 'thinnies' may not be used as front tyres, but they may be used in Open Wheel. |
| For Modified any gear ratio is permitted. |
| F1 bodies with two rear wing-posts may be repaired in the way shown in the pictures here. |
| Mixing of any Tyco/Mattel bulkheads is permitted, but no modifications may be made. |
Tomy
Super Racing Turbo/Turbo/Irwin Turbo+
The Turbo is legal in Open Wheel, Modified and Nascar classes, the SRT only Modified.
| In Open wheel cars must start all races with front wings and down posts (where relevant) present. |
| Only standard Tomy (not A.F.X) armatures with red windings are permitted. Motor can may not be altered in any way, other than re-profiling of electrical tabs. |
| Plain bearings (bush) must be stock and unaltered. |
| For Modified any gear ratio is permitted. |
| For Open wheel and Nascar a 7T pinion must be used, but crown can be either 25T or 22T. |
| Magnet retaining clip must be fitted and be unmodified. |
LifeLike M/Rokar X
This chassis is legal in Open Wheel, Modified and Nascar classes.
| In Open wheel cars must start all races with front wings and down posts (where relevant) present. |
| Only standard Life-Like or Rokar armatures with red windings, or the skewed 'powertracker' armature are permitted |
| Any make of Plain bearing (bush) may be used with this chassis, but housings must be stock and unaltered. |
| For Modified any gear ratio is permitted. |
| Pole piece must be fitted, stock and unmodified. |
A.F.X Mega-G MG15
This chassis is legal in Nascar and Modified classes.
| Only standard Mega-G armatures are permitted. |
| Any make of Plain bearing (bush) may be used with this chassis. |
| For Modified any gear ratio is permitted. |
LifeLike T
This chassis is legal in Nascar and Modified classes.
| Only standard T armatures are permitted. Must be run with standard and unmodified T can motor. |
| Plain bearings (bush) must be stock and unaltered. |
| For Modified any gear ratio is permitted. |
| Fitting non-standard front axles is not permitted. |
| Spring plate must be stock and unmodified. |
Tomy SG+
This chassis is legal in Nascar and Modified classes.
| Only standard Tomy (not A.F.X) armatures with red windings are permitted |
| Any make of Plain bearing (bush) may be used with this chassis. |
| For Modified any gear ratio is permitted. |
| Timing bracket must be stock and unmodified. |
| Traction magnet clip must be stock, fitted and unmodified. |
| Pick up holders must be stock, they may be reshaped but no material may be removed or added. |
Marchon MR1
This chassis is legal in Modified class.
| Any legal Tomy-timed armature may be used. Motor can and internals may not be altered in any way, other than re-profiling of electrical tabs. Plain bearings (bush) must be stock and unaltered. |
| Any gear ratio is permitted. |
| Traction magnet clip must be stock, fitted and unmodified. |
| Pick up holders must be stock, they may be reshaped but no material may be removed or added. |
| Magnets must be stock items, unaltered, not shimmed, not glued in, and must be in the stock position. If you build a car outside of these parameters it will considered a Pro Modified. |
Artin F
This chassis is legal in Modified class.
| Any legal Tomy-timed armature may be used. Motor can and internals may not be altered in any way, other than re-profiling of electrical tabs. Plain bearings (bush) must be stock and unaltered. |
| Any gear ratio is permitted. |
| Spring plate must be stock and unmodified. |
| Pick up holders must be stock, they may be reshaped but no material may be removed or added. |
| Magnets must be stock items, unaltered, not shimmed, not glued in, and must be in the stock position. If you build a car outside of these parameters it will considered a Pro Modified. |
| Body screw does not have to be fitted. |
Autoworld Super III
This chassis is legal in Modified class.
| Only standard AW super III armatures with copper windings are permitted. |
| Any gear ratio is permitted. |
| Any make of Plain bearing (bush) may be used with this chassis. |
| All retaining clips must be fitted at all times. |
| Magnets must be stock items, unaltered, not shimmed, not glued in, and must be in the stock position. If you build a car outside of these parameters it will considered a Pro Modified. |
Scalextric Micro
This chassis is legal in Modified class.
| Any legal Tomy-timed armature may be used. Motor can and internals may not be altered in any way, other than re-profiling of electrical tabs. Plain bearings (bush) must be stock and unaltered. |
| Any gear ratio is permitted. |
| Mixing of braid/pin plates and chassis is permitted. |
| Plastic blade-style guide pins are permitted for this chassis only. |
| Magnets must be stock items, unaltered, not shimmed and not glued in. If you build a car outside of these parameters it will considered a Pro Modified. |
EAHORC 2011/12
Pro-Modified Rules
All items are 'open' except:
Bodies - Bodies must be closed-wheel, and have a shape based on a real race car (not road car). Lexan and other lightweight bodies are permitted, providing they meet guidelines. Bodies must feature accurate or at least prototypical race car colour schemes (race numbers, sponsors etc). Windows must be clear or painted to contrast with body. Where wings were featured on the real car, they must be present, but Lexan and other lightweight bodies may feature moulded in wings.
Lexan and other lightweight bodies may run without front wheel cut-outs but these must be clear. Bodies may be ballasted, but ballast must be glued firmly in place. Bodies may be lowered, lightened, and otherwise worked on to improve clearances, but must maintain the original outward integrity of the original. Any method of body fitment is permitted with any chassis. Devices designated as clips are not considered a chassis part and must not be glued to chassis, they can but do not have to be glued to bodies.
Standard Armatures - Armatures without balance marks must be stock and therefore not 'worked up' in any way (examples: diameter of shaft reduced, commutator tied-off, windings or comm epoxied, windings removed, commutator diamond-trued). Windings must be red, rotors must be unpainted. Standard arms with Wide-gap rotors are permitted so long as they comply with all other rules.
Balanced armatures - The following armatures are permitted:
| Tyco Timed | Tomy Timed |
| Harden Creek HCE3B | Harden Creek HCE3E |
| Harden Creek HCE6B | Harden Creek HCE6E |
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Slottech 102 & 102-1
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BSRT #140 |
| Slottech 104, 104-1, 104-2 & 104-3 | BSRT #148 |
| Wizzard SP04, SPO4PA & SP04PAL | |
| Wizzard SP05* |
These must not be altered in any way. Any arm with soldered tabs will be treated as a rewind, and therefore illegal. Any driver running with an illegal armature will be disqualified from the class for the whole season, and their name and scores removed from the Pro-Mod championship. *No other wide-gap balanced arms are permitted.
Tyres - Must be single compound and black in colour. Sidewall writing and detailing based on real tyres is permitted (must be class-correct and body-correct). O-rings and 'thinnies' may be used as front tyres.
Electricals - Open, but no shunts.
Rolling-element bearings - Permitted on armatures, but not axles. Armature shaft may not be modified to facilitate fitting of rolling-element bearings or plain bearings.
Magnets - maximum 2 traction magnets and two motor magnets per car.
All entered cars must fit through an EAHORC metal 34mm width gauge and be 17mm from centreline to sides, unless specifically exempted.
Cars must start all races with body properly attached, and four tyres as defined by the current rules and all items of the car that can be considered it's parts to be present and intact, unless expressly exempted. Where pick-up shoes are part of a chassis design these must be fitted. There must be no sharp edges on the cars. Race control reserve the right to ignore any laps completed by cars that do not comply.
Bodies must be of a shape & colour scheme passed by race control to be an acceptable 'real' Nascar scheme used on a car that has raced (not just practiced or tested). Exceptions:
The Tyco 'Mello Yello' may be used with the incorrect race numbers. All repaints of this scheme must have the correct number (42), not the one used in the Days of Thunder movie.
The Tomy 'Zerex' may be used with the incorrect race numbers. All repaints of this scheme must have the correct number (7).
The Tomy #11 and #9 Bill Elliot cars may run with Ford Logos in place of the alcohol ones.
