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Closes Friday, October 3 at 18:00 (Asia/Singapore)

Singapore International Nitro Grand Prix

04
Oct
09:00
05
Oct
18:00
Time and dates are in the SST (Asia/Singapore) timezone.
Date of Race: 04th-05th October 2025

Race Fees for 1 / 2 / 3 classes respectively
Members: $80 / $120 / $160
Non-members: $110 / $150 / $190

Classes: 

1/8 GP

1/10 GP

1/8 Nitro GT

Rules:

a) 1/8 GP Onroad:
Open to All brands and makes of 1/8th Scale

  1. Open tires and treatment.
  2. Engines: 3.5cc 2 stroke
  3. INS box must be used.
  4. Tank: 125cc
  5. Minimum car weight without fuel: 2350 grams including transponder, tires and body
  6. Overall dimensions:
    Wheel base 270 - 330 mm/11-13 in.
    Maximum overall width 267 mm/10.5 in.
    Maximum overall height 180 mm/7.5 in. (except aerial, incl. Gurney strip )
  7. Body shells to be IFMAR approved.
  8. No Gyroscopes allowed.

b) 1/8 GP GT Open Class:
Open to All brands and makes of 1/8 shaft driven GT with min chassis kick up angle of 5 degree at the front
The following general & IFMAR rules will be subject to scrutineer:

  1. Rubber Tyres Only.
  2. Engines: 3.5cc 2 stroke, 5 ports, carb insert 7.0mm.
  3. INS box to be used.
  4. Tank: 150cc
  5. Body shells to be IFMAR approved.
  6. Minimum car weight without fuel: 3500 grams including transponder, tires and body
  7. No Gyroscopes allowed.

c) 1/10 GP Touring Class
Open to All brands and makes of 1/10th Scale

  1. Important:
    a) Wheelbase: Open to 200mm only
    b) Bodyshell: **Open to all 200mm types
  2. Engines: 2.1cc 2 stroke
  3. INS box must be used.
  4. Tank: 75cc
  5. Open tires (foam type) and treatment.
  6. No Gyroscopes allowed.
RACE FORMAT:

Controlled Practice

1 Round, 5 minutes, Best 3 consecutive laps to count for seeding for qualifying groups.

Qualifying

4 Rounds, 7 minutes, best 2 to count.

Tie-break based on best finishing position, followed by laps/time.

Top qualifier will qualify directly into the main final.

Finals

Christmas tree format for 1/8th Scale

Quarter Final and Below: 20 minutes

Semi-Finals: 30 minutes

Final: 45 minutes

Bump-up

Top 3 finishers for each lower final to bump up

For semi-finals, Top 4 to bump up into the main final followed by the three fastest finishers to make a 12-car main final.

Ladder main format for 1/8GP GT and 1/10th scale

7 direct qualifiers into each main (i.e 1st-7th into A Main, 8th-14th into B Main, 15th-21st into C Main and so on so forth)

Top 3 finishers of each final to bump up

A Final: 45 minutes

B Final: 30 minutes

C and lower: 20 minutes

NOTE: The organisers reserves the right to make amendments to the rules and race-format.

1/10 GP On-Road

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1/8 GP On-Road

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1/8 GT On-Road

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