NSR/Scaleauto GT3 (National)

Rules as per the National GT3 Championship

The latest announcements and details from the National GT3 Championship are published on SlotForum.

Rationale: To race “out of the box” cars with specified modifications using mainly NSR, Scaleauto and specified third party components.

  • Eligible cars:
    • NSR
      • ASV (Aston Martin Vantage GT3)
      • Audi R8 LMS
      • BMW Z4 GT3
      • Corvette C6.R
      • Corvette C7.R
      • Mercedes-AMG GT3
      • Porsche 911 (997) GT3 RSR
    • Scaleauto
      • Audi R8 LMS GT3
      • BMW Z4 GT3
      • Corvette C7.R (A7-R)
      • Mercedes-AMG GT3
      • Mercedes-Benz SLS AMG GT3
      • Porsche 911 (991) RSR
      • SRT Viper GTS-R

Rules: NSR

Parts marked * are standard in most cases.

  • Body
    • Must retain original interior.
    • Rear wing must be firmly affixed at the start of every race.
    • White kits must be fully painted.
    • Clear coats may be used in addition to paint, but not as a replacement for paint.
  • Chassis
    • Must be the NSR black plastic chassis that matches the body.
    • Magnet(s) must be removed.
    • Ballast may be added, but must be firmly fixed.
    • Taping, strengthening and/or laminating is not allowed.
    • If a drop arm was fitted originally it must be retained. It may be adjusted or fixed using the screw supplied.
  • Guide
    • Must be NSR part number 4841*, 4842*, 4843, 4844, 4845 or 4859.
    • Spacers may be used to set guide depth.
  • Motor pod
    • Must be as fitted to original purchase.
    • A small amount of material may be removed from the motor cradle to help avoid stress fractures when installing a motor.
  • Motor – Must be one of the following:
    • NSR 3023* – King 21 with purple wrapper, 21400 rpm, 350 g-cm.
    • NSR 3017 – King 21 with orange wrapper, 21400 rpm, 322 g-cm.
    • Scaleauto SC-0026b – Endurance, 22000rpm, 310 g-cm.
  • Gears
    • Pinion – must be:
      • NSR 7112, 7113*, or 7114 (7.5mm 12–14T brass).
    • Anglewinder spur – must be
      • NSR 6528, 6529, 6530, 6531*, 6532, 6533 or 6534 (16.8mm 28–34T aluminium).
  • Axles – Must be:
    • NSR 4801 (49mm solid steel) or 4802 (52mm solid steel).
  • Bearings
    • Must be standard fit as supplied with model.
  • Wheels
    • Front – must be
      • NSR 5001 (Ø16 x 8mm solid hub) or
      • NSR 5003* (Ø17 x 8mm solid hub)
      • and must turn when car is placed on a set-up block and pushed down and forward.
    • Rear – must be either of:
      • NSR 5003 (Ø17 x 8mm solid hub).
      • NSR 5004* (Ø17 x 10mm air hub)
  • Tyres
    • Front
      • Must be black rubber. May be varnished and/or glazed.
    • Rear
      • Must be NSR black rubber.
      • The NSR logo should be visible on both tyres. If logo has become worn or indistinct the scrutineer will adjudicate.
  • Wheel inserts
    • May be fitted.
  • General
    • Overall width across rear wheels and tyres must not exceed 64mm.
    • Wheels must not be visible from above when either axle is moved to its extreme left or right positions.
    • All other components are free choice – e.g. braids, wires, screws, spacers, stoppers, glues and lubricants.

If it is not listed above it is not allowed.

Rules: Scaleauto

  • Body
    • Must retain original interior.
    • Rear wing must be firmly affixed at the start of every race.
    • White kits must be fully painted.
    • Clear coats may be used in addition to paint, but not as a replacement for paint.
  • Chassis
    • Must be the Scaleauto plastic chassis that matches the body.
    • ‘Home’ range chassis are not allowed.
    • Magnet(s) must be removed.
    • Ballast may be added, but must be firmly fixed.
    • Taping, strengthening and/or laminating is not allowed.
  • Guide
    • Must be Scaleauto part number 1603, 1604, 1605, 1606, 1607, 1608, 1620 or 1621.
    • Spacers may be used to set guide depth.
  • Motor pod
    • Must be Scaleauto anglewinder configuration (or inline option for Mercedes only) as fitted to RTR series models.
    • Any offset allowed.
    • Lateral arms must not be fitted.
    • A small amount of material may be removed from the motor cradle to help avoid stress fractures when installing a motor.
  • Motor – Must be one of the following:
    • Scaleauto SC-0011b – long can Tech-1, 20000 rpm, 286 g-cm.
    • Scaleauto SC-0025 – Sprinter, 21500 rpm, 300 g-cm.
    • Scaleauto SC-0025b – Sprinter 2, 21500 rpm, 320 g-cm.
    • Scaleauto SC-0026b – Endurance, 22000rpm, 310 g-cm.
  • Gears – anglewinder configurations
    • Pinion
      • must be Scaleauto or Slot.it 11, 12, 13 or 14T.
    • Spur
      • must be Scaleauto or Slot.it with free choice of tooth number.
  • Gears – inline configuration for Mercedes only
    • Pinion
      • must be Scaleauto or Slot.it 8, 9 or 10T,
    • Crown
      • must be Scaleauto with free choice of tooth number.
  • Axles
    • Must be standard Scaleauto as supplied with model.
  • Bearings
    • Must be standard fit as supplied with model.
  • Wheels
    • Front – must be
      • Standard Scaleauto plastic/aluminium as supplied with model, or
      • Slot.it W16508215A (ex PA43-Als) 16.5 x 8mm aluminium, and
      • Must turn when car is placed on a set-up block and pushed down and forward.
    • Rear – must be one of the following:
      • Scaleauto 17.3mm plastic/aluminium as supplied with model.
      • MB Slot 19019
      • Racer SWW/GTA
      • Slot.it W17309715A (ex PA62-Als) (Ø17.3 x 9.75mm solid hub)
      • NSR 5003 (Ø17 x 8mm solid hub)
      • NSR 5004 (Ø17 x 10mm air hub)
        • NB: NSR wheels will require reaming to 2.38mm.
  • Tyres
    • Front
      • Must be black rubber. May be varnished and/or glazed.
    • Rear
      • Must be NSR black rubber.
      • The NSR logo should be visible on both tyres. If logo has become worn or indistinct the scrutineer will adjudicate.
  • Wheel inserts
    • May be fitted.
  • General
    • Overall width across rear wheels and tyres must not exceed 64mm.
    • Wheels must not be visible from above when either axle is moved to its extreme left or right positions.
    • All other components are free choice – e.g. braids, wires, screws, spacers, stoppers, glues and lubricants.
If it is not listed above it is not allowed.
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