Below are the rules for Junior rods for racing at Tipperary Raceway for 2026. Rules are as of now and can be edited at any time. Check back regularly.
Version 17022026.001
Photo courtesy of 493 Photography. Photo of #702 Cian Walsh. 2025 Points Champion.
“The Scrutineers decision is final. If it is not in the rules, you cannot do it”
It is required that all teams to have an in-date 2kg Powder fire extinguisher within easy reach in the pits. Please make sure all team members are aware of Its location and operation.
There is no smoking allowed in the pits.
This formula is NON-CONTACT. Cars should be prepared with a professional racing appearance. This standard is required to be kept up throughout the drivers racing season. Cars must be presented in a tidy and safe condition. Helmets, neck brace and all race wear must be presented in scrutiny
AGE LIMIT FOR FORULA ARE AS FOLLOWS
Drivers may start racing on their 10th birthday until the day of their 16th birthday regardless of being mid season starts or ends. Drivers cannot race after day of 16th birthday. Proof of age may be requested by TMC Race Promotions.
MECHANICAL VIOLATIONS
When referring to the engine and gearbox, differential, mechanical or construction rules + regulations, the principle will always be:
1. TYPE OF CAR
cars eligible for use are :
Any 1000cc production car except yaris vvti
2. WEIGHTS
Minimum weight 650KG
3. ENGINES
CG10 Engine
App Parts must be original or OEM
Standard ECU’s are to be used. NO modifications except the Rev limiter may be disabled .These can be checked by scrutineers as required
Scrutineers have the right to request ecu swaps for any reason
Flywheel cannot be lightened
Head can be skimmed the minimum thickness is on the checklist
No skimming of engine block
Throttle body must be OEM. 45mm maximum
Camshafts and all timing gears must remain standard
Injectors must remain standard
The restrictor plate must be fitted to all Junior cars on practice and race day NO EXCEPTIONS
Standard exhaust systems only and must run original silencer to reduce noise
All vacuum pipes must be blocked.
Engine valve will be €600. A driver can purchase an engine being raced in the class by going to chief Scrutineer on the day of racing with exception of championship meeting. Failure to sell engine will result in immediate ban for the driver NO EXCEPTIONS
Throttle bodies will be sealed to manifold during racing season to prevent any modifications to Restrictor plates. Any modifications to Restrictor plate will result in immediate ban
Engines should stop immediately when top of the throttle body inlet is covered. Cars that stay running will not be let race until its fixed.
4.TRANSMISSION
The gearbox must remain standard
Driveshafts must remain standard
Differential must not be locked in anyway (no LSD or welded differential allowed).
5. WHEELS AND TYRES
Nankang tyres 155/70/13 only
Steel and Alloy wheels are allowed. 13-Inch by 5.5-inch width only.
Wheels must not be outside the wheel arches
No capped wheel nuts. Stud must be visible through nut and must protrude outside of wheel nut
6. SUSPENSION
The maximum value of 4 shocks is to be no more then €250. Another driver in the class can buy any drivers suspension.
Standard suspension and springs only allowed. You may cut original springs to lower car.
Wishbone mounting points to remain standard
Left wishbone can have metal added to achieve caster and camber of 25 mm outwards and 25mm forward.
This is a maximum measurement; there is zero positive tolerance.
Front left shock must remain standard No modifications allowed to achieve camber
Front right shock may have top shock bolt elongated to gain camber, but this must have washers welded on and original bolts used. Use of smaller bolts not acceptable
Right side wheelbase must remain standard 2360mm
Max wheelbase on left side is 2385mm
Anything more than this will result in disqualification
Maximum camber on left 10 deg
Maximum camber on right 3 deg
Any more than above will result in disqualification
7 BRAKES
All brakes must be OEM and working on all wheels
A working handbrake is compulsory
No modifications.
8. BODYWORK
To remain exactly as production
Both front doors maybe deskinned
No other panels allowed to be deskinned
No armouring allowed on front or rear of car
The bonnet lock panel maybe replaced with 25mm box or tube down to chassis legs. This must be collapsible with no bracing and must be 3″ back from front of chassis legs
9. ROLLCAGE
Alloy roll cage are not permitted
The minimum steel roll cage protection you must have:
One front hoop
One rear hoop with cross bar at shoulder height to mount seat support
Two roof connecting bars
One dash bar
Two N/S chicken bars
Two O/S chicken bars
Windscreen bar must be fitted 3/4 way across near the driver’s side with maximum of 25mm box or tube
One sill bar in each side
One bar connecting B pillar to roof bar on each side on approximately 45deg angle maximum of 12 inches long
An extra bar must be added from front hoop to rear hoop over driver’s head
All door bars must be connected in 2points and bottom door bar connected to sill bar
PLEASE NOTE A SILL BAR IS NOT A DOOR BAR.
10.WINDSCREEN /INTERIOR
All glass and interior trim must be removed from the car. A rear-view mirror must be fitted and a door mirror on right hand side
A window net must be fitted to driver’s door
11. STOP LIGHTS
Brake lights must be hung from the roof. Lights must be operated by the standard stop light switch as fitted in that particular model of car. If bulbs are used, they must be 21 watt intensity. A strip light maybe fitted covering at least 3 quarters of the rear window width. Or 2 brake lights on either side of rear. LED lights are allowed
12.BATTERIES
Batteries must be securely clamped in place and covers with leak proof material (e.g. rubber) to prevent spillage of acid
13 SEATS
Competition type seats are compulsory. The seat must be adequately supported at shoulder height
Seat must be fixed securely
Aluminium seat must be bolted at rear with minimum of 2 x 8mm bolts to minimum of 3mm plate 75mm x 30mm
Only harnesses permitted is 4 point or 5 points
PLEASE MAKE SURE THAT THE DRIVER FITS IN THE SEAT CORRECTLY AND THAT THE REAR HARNESSES HOLES ARE NOT TO FAR ABOVE SHOULDER OF DRIVER
Additional head support as shown below may be required as per scrutineer discretion.
14. STEERING
Steering rack should remain in its original position
Steering column can be altered to suit driver
Steering wheel optional (clip on or fixed)
No sharp edges around steering column
15. FUEL TANK
Competition fuel tanks are compulsory
No original fuel tanks allowed
Fuel tanks must be fully fitted inside the car, and above floor level.
All fuel caps must have race number of car on them
All fuel caps must be fitted with seal
No drilling of fuel caps if found the car will not be permitted to race
A non-return valve must be fitted to vent pipe min level of under the tank
The tank must be covered with firewall this means sealed any cars found to not have adequate firewall will not be allows to race
All Fuel lines inside the car’s body must be high pressure rated lines.
16. RACE NUMBERS/GRADES
No offensive graphics allowed.
Race numbers must be displayed on both sides of the car and must be a minimum of 300mm height and 50 mm stroke width. These numbers should be clearly readable from distance, and be the correct number for the driver.
FIN PLATES
Text must be minimum of 230 mm x 38mm stroke pitch
The background of fins must be in correct colour for grade assigned to driver racing the car as per www.tipperaryraceway.ie
The text colour depends on this.
Rear of fins (inside) must be white
Failure to comply with this will result in starting from rear of the grid for race meeting
WHITE grade is Black text on white background
YELLOW grade is black text on yellow background
BLUE grade is white text on blue background
RED grade is white text on red background
POINTS CHAMPION is black text on silver background
Visor must be of no more than 6 inches high and have the drivers name from 1/1/2027 on all cars. Any new cars being built from 1/6/2026 must comply with this rule.
17. TRANSPONDERS/ RECEIVERS
If a driver is found to have a faulty receiver that driver will be directed to the infield. The same driver will be checked at the start of the next race.
It is compulsory to have a working transponder always fitted to your car. Failure to have one may result in starting from rear of grid all day even if it is fixed.
Failure to have a working transponder working will result in zero points for that race.
For installation advice look at the technical pages at www.tipperaryraceway.ie
18.FLAG SIGNALS
Green – Go, all clear to race
Red – stop racing. Come to a quick, but safe stop and await further instructions.
Chequered – Race is over but keep driving at speed until you see the red flags.
Yellow (stationary) – Take care as a car is stationary on track. Continue to race with caution
Yellow (waved) -the race is suspended, all cars must remain in single file and slow to 15mph or in exceptional circumstances, stop. No overtaking permitted. If you are seen to overtake you will be returned to your original position or further back. Further punishments may occur if deemed necessary.
Blue -Driver must hold their line as faster cars are trying to overtake.
Black – Driver disqualified for an infringement. Driver must leave the track immediately
White flag with red cross – technical disqualification flag. This is used to signal to a driver that they have a problem with the car and must immediately retire to infield safe zone
Black cross- Driver under surveillance for a rule infringement may be penalised after a race conclusion. The decision is up to the course Marshal on the day
White flag with blue centre- Drivers should exercise caution as oil or other debris may be on the track
REGARDING SAFE ZONE IN INFIELD
Any driver who does not park in safe zone when they enter INFIELD except for a car that cannot make it to area due to failure or damage MAY BE DISQUALIFIED FROM NEXT HEAT AT COURSE MARSHALLS DISCRETION
19. RULE CHANGES
TMC race promotions may at any time, without notice make amendments to the specifications. It may also make amendments in interest of expense to the driver or in areas that are determined to be detrimental to the future of the formula, or if unnecessary advantage has been deemed. Additionally, if it is felt that the formula is drifting away from original concept.
20. SCRUTINNER/COURSE MARSHALL
The Scrutineers /Course Marshall/ Start Marshall/Clerk of the Course/Race Director’s decisions are final. Any driver or parent or member of your race team that approaches any track staff about decisions made by the listed above may result in disciplinary action
THE DECISIONS MADE BY TRACK STAFF ARE FINAL
21. HELMETS
Helmets must be a minimum standard as directed by British oval racing safety executive (B.O.R.S.A). These are fia8860-2004, snell sa2010, SFI foundation 31.1a and SFI foundation 31.2a. The e2205 European standard helmet may be used in fibreglass or tri-composite form only. No polycarbonate helmets are allowed. It is important that the helmet fits the driver correctly. Shatterproof goggles/visor must be worn. Your helmet must display the current ORCI (orc10) sticker.
A Neck brace and helmet must be presented at scrutiny.
22. CLOTHING
Drivers must wear a racing overall which is fire retardant. Fire retardant gloves and Balaclava are mandatory please make sure they are marked appropriately.
23.CHECKLIST
CG10 engine
Minimum head thickness 120.80mm
Inlet Camshaft 38.19mm maximum height
Exhaust Camshaft 38.19mm maximum height
Inlet valve diameter 27.6mm
Exhaust valve diameter 22.6mm
Valve spring 40mm free length maximum
Rev limiter may be removed
No cutting of valve seats must remain OEM
Standard Camshafts for cg10
Standard timing gears
No decking of engine block
No lightening of flywheel
No lightening of crankshaft
No lightening of conrods
No lightening of pistons
No porting/ polishing of any components
Correct injectors / colour for cg10
No alterations to fuel regulator or fuel return
Standard OEM 45mm throttle body only No machining allowed
All sensors must be securely fitted to throttle body
All Vacuum pipes must be blocked on inlet manifold and throttle body
No removing of gasket material to allow air
All cars must stop immediately once the top of throttle body covered
The throttle body will be sealed by means of security seal if this is tampered / removed without permission of scrutineer penalties will apply.
Check up to date roof grade so you can have correct grade colour on fins. You can find this on the driver’s page at www.tipperaryraceway.ie
Race receivers
Transponder
Fire retardant overalls ,Balaclava, gloves
Neck brace
24.RULES /REG
NO OUTSIDE ASSISTANCE ALLOWED ONCE CAR IS ON TRACK
Driver cannot work on his/her car in infield during a race. You must go to safe zone.
Drivers must remain in the car with all safety gear on and correctly fastened. The helmet and neck brace must remain on.
Only if there is a risk of fire or as directed by a Marshall can you exit the car
Driver is responsible for his/her crew or team at all times on a race day and must not interfere with other drivers, or track staff.
All drivers must attend drivers briefing on race day before racing
During Scrutineering there are other people on the track. YOU WILL NOT SPEED. 5mph Max. That’s walking pace.
No spinning of wheels in pits area any driver found driving in an inappropriate manor will be dealt with on the day by the course Marshall and punishments may apply.
Cars must travel at 5mph maximum in pits area.
This is a NON-CONTACT class. There must be no fencing or driving at a driver’s door or dangerous driving. Any contact deemed deliberate or unsafe may result in punishments.
A car that deliberately fences another car (in the opinion of the Steward), will receive penalties. Fencing in this case includes spinning to the infield.
If a race is red flagged within 4 laps of the start, the Course Marshall MAY declare a restart. The Race Director may at his decision restart a race in single file Especially if there are more then one restarts. Any car that has pulled into the infield may re-join the restarted race, But must be complete as original line-up i.e. bonnet, and doors and bumpers must be on all cars, and considered ‘race worthy’ but the race director.
When a car is requested to go to scrutiny shed for checks ONLY 1 PARENT /MECHANIC IS ALLOWED WITH DRIVER THIS RULE ALSO APPLIES WHILE IN THE BAY WAITING TO ENTER THE SCRUTINY SHED
TMC race promotions would like to wish the best of luck to all drivers competing in this formula for 2026
