Enquiries: 03 9736 9578
 
 
 
 
 NEW RULES ADDED TECHNICAL DEPARTMENT
 
 
CLASS SWAPPING Super Comp and Performance Bike 
Tuesday 5th October 2021
 
In response to the clarification on the intent of the Class Swapping regulation for Performance classes, IHRA Australia agrees that the below wording will be put in place for the 2021-2022 400 THUNDER Season.
General Reg 48930, Racing Procedure, Class Swapping
Competitors in our performance categories, Super Comp and Performance Bike, are allowed to change between a maximum of two designations per championship season. That is X to Y and back to X is permitted.
Mandatory
 

 
NEW SUPER COMP CLASSES ADDED
Tuesday 5th October 2021
 

Competitors please be advised of new classes added to Supercomp bracket. 

Modified Sedan has also been updated with class limits suited to current technology.

Flat Tappet required for A/MS, A/MSA, B/MS, B/MSA, C/MS, C/MSA with listed weight .

Roller Camshaft permitted for A/MS, A/MSA, B/MS, B/MSA, C/MS, C/MSA with additional 100lbs weight added to standard class requirement.

Roller Camshaft permitted for H/MS, H/MSA, D/MS, D/MSA,E/MS, E/MSA.

Current cars can still compete with no change required.

Performances will be monitored by the Record Review Committee.

The IHRA Australia Supplementary Rule App will be updated with these new classes for Supercomp over the coming weeks. The National Records have been updated for both the 1/4 mile and 1000ft.
 

 
D/MS and D/MSA
 

ENGINE

420-460 c.i. V8 Only

Block- OEM Alloy or Cast Iron

Max. Bore 4.300

Maximum Valve Lift .900(Valve)

Roller Camshaft Permitted

Lifter .904 Diameter (No Keyway Lifters)

Rpm Limit 9200rpm (Logging Required)

One inch travel dial indicator and mounting plate to measure cam lift to be supplied by the racer

All engines must be sealed prior to competition.

HEADS

Any OEM or Aftermarket Non-Billet Accepted.

INTAKE MANIFOLD

Any Mass-Produced Cast Manifold Permitted. Original identification required

Internal Porting Permitted.

Welding Repairs for Minor Damage Permitted.

OILING

Wet Sump Only.

Single Stage External Oil Pump Permitted.

INDUCTION

EFI 8 Injectors Maximum Only.

One Only 4500 Style Base Throttle Body or One Carburettor 4500 Style Base.

IGNITION

Any ECU Approved by IHRA Australia

No Traction Control Permitted

AUTO TRANSMISSION

OEM Based Automatic Transmission

Maximum 3 Speeds

No Lockup Torque Convertors.

MANUAL TRANSMISSION

Maximum 5 forward Speeds

FUEL

Any IHRA Australia Approved Unleaded, Methanol, E85 fuels only. Nitrous Oxide and Nitromethane Not Permitted.

BODY

As Per Current / MS Body Regulations.

No Wheelie Bars

WEIGHT

7.25lbs Per Cube. Minimum Weight 3045lbs

TYRE SIZE

May be no larger than 275/60R15 or 28x10.5 radial, (30x9x15 slick/radial slick is optional) as labelled by manufacturer.


 
E/MS and E/MSA
 

ENGINE

340 – 370 c.i. V8 Only

Block- OEM Alloy or Cast Iron

Max Bore 4.080

Max Valve Lift .800(Valve)

Roller Camshaft Permitted

Lifter .904 Diameter (No Keyway Lifters)

Rpm Limit 9200rpm (Logging Required)

One inch travel dial indicator and mounting plate to measure cam lift to be supplied by the racer.

All engines must be sealed prior to competition.

HEADS

Any OEM or Aftermarket Inline Valve Only. Cantered, Splayed Valve, Billet Heads Not Permitted.

INTAKE MANIFOLD

Any Mass-Produced Cast Manifold Accepted original identification required

Internal Porting Permitted.

Welding Repairs for Minor Damage Permitted.

OILING

Wet Sump Only

Single Stage External Oil Pump Permitted

INDUCTION

EFI, 8 Injectors Maximum Only 

One Only 4150 Base Throttle Body or One Only 4150 Style Carburettor (No Dominators)

IGNITION

Any ECU Approved by IHRA Australia

No Traction Control Permitted.

AUTO TRANSMISSION  

OEM Based Automatic Transmission     

Maximum 3 Speeds

No Lockup Torque Convertors.

MANUAL TRANSMISSION  

Maximum 5 forward Speeds.

FUEL  

Any IHRA Australia Approved Unleaded, Methanol, E85 fuels only. Nitrous Oxide and Nitromethane Not Permitted.

BODY  

As Per Current / MS Body Regulations

No Wheelie Bars Allowed

WEIGHT  

9.00lbs Per Cube Minimum Weight 3060lbs

TYRE SIZE

May be no larger than 275/60R15 or 28x10.5 radial, (30x9x15 slick/radial slick is optional) as labelled by manufacturer.


 
D/D and D/DA - D/A and D/AA
 

ENGINE

340 – 370C.I. V8 ONLY

Block- OEM Alloy or Cast Iron

Max Bore 4.080

Max Valve Lift .800 (Valve)

Roller Camshaft Permitted

Lifter .904 Diameter (No Keyway Lifters)

Rpm Limit 9200rpm (Logging Required)

One inch travel dial indictor and mounting plate to measure the cam lift to be supplied by the racer.

All engines must be sealed prior to competition

HEADS

Any OEM or Aftermarket Inline Valve Only. Cantered, Splayed Valve, Billet Heads Not Permitted

INTAKE MANIFOLD

Any Mass-Produced Cast Manifold Accepted must retain original identification                                   

Internal Porting Permitted.

Welding Repairs for Minor Damage Permitted.

OILING

Wet Sump Only. Single Stage External Oil Pump Permitted

INDUCTION

EFI, 8 Injectors Maximum Only

One Only 4150 Base Throttle Body or  One Only 4150 Style Carburettor (No Dominators)

IGNITION

Any ECU Approved by IHRA Australia No Traction Control Permitted.

AUTO TRANSMISSION

OEM Based Automatic Transmission

Maximum 3 Speeds

No Lockup Torque Convertors.

MANUAL TRANSMISSION

Maximum 5 Forward Speeds.

FUEL

Any IHRA Australia Approved Unleaded, Methanol, E85 fuels only. Nitrous Oxide and Nitromethane Not Permitted.

BODY

As Per Current Altered and Dragster Body Regulations

WEIGHT

4.50lbs Per Cube Minimum Weight 1530lbs


 
E/AP and E/APA
 

ENGINE

340 – 370C.I. V8 ONLY

Block- OEM Alloy or Cast Iron

Max Bore 4.080

Max Valve Lift .800 (Valve)

Roller Camshaft Permitted

Lifter .904 Diameter (No Keyway Lifters)

Rpm Limit 9200rpm (Logging Required)

One inch travel dial indicator and mounting plate to measure cam lift to be supplied by the racer.

All engines must be sealed prior to competition.

HEADS

Any OEM or Aftermarket Inline Valve Only. Cantered, Splayed Valve, Billet Heads Not Permitted.

INTAKE MANIFOLD

Any Mass-Produced Cast Manifold Accepted must retain original identification                                  

Internal Porting Permitted.

Welding Repairs for Minor Damage Permitted.

OILING

Wet Sump Only. Single Stage External Oil Pump Permitted

INDUCTION

EFI, 8 Injectors Maximum Only

One Only 4150 Base Throttle Body or One Only 4150 Style Carburettor (No Dominators)

IGNITION

Any ECU Approved by IHRA Australia No Traction Control Permitted.

AUTO TRANSMISSION

OEM Based Automatic Transmission

Maximum 3 Speeds.

No Lockup Torque Convertors.

MANUAL TRANSMISSION

Maximum 5 forward speeds.

FUEL

Any IHRA Australia Approved Unleaded, Methanol, E85 fuels only. Nitrous Oxide and Nitromethane Not Permitted.

BODY

As Per Current AP Body Regulations

WEIGHT

6.50lbs Per Cube Minimum Weight 2210lbs

 

 
PROTECTIVE CLOTHING UPDATE
Friday 27th November 2020
 
IHRA Australia Technical Review Committee have updated the Professional - Performance and Sportsman Clothing Matrix's.
 A new Matrix has been created - Sportsman Supercharged Outlaws
 
These updated Clothing Matrix's will be effective from 1st February 2021
 
These new Matrix's will help you the competitor easily identify which item of Protective clothing you are required to wear.
 
Note: To download view / print in PDF please click on the images below:
 
 
 
PROFESSIONAL CLOTHING MATRIX   PERFORMANCE CLOTHING MATRIX
     
 



     
SUPERCHARGED OUTLAWS CLOTHING MATRIX   SPORTSMAN CLOTHING MATRIX
     
 
     
     
 
 
 
 
 
 
Release Date 10th June 2020 
 

IHRA Australia and its Technical Review Committee (TRC) have used COVID-19 and the unfortunate downtime in drag racing activities to further increase and develop a safer sport, to improve driver / rider / vehicle safety specifications.

 

There will be updates provided over the next few months and we urge anyone in the drag racing industry to refer to IHRA Australia’s Website for all of these latest rule updates.

 
The following rules have been created and you will need to take note specifically of their implementation dates.
 

It is a responsibility of all drivers/riders/crew chiefs to be familiar and up to date with all of their class regulations. As Follows:

 

ELECTRIMOTION

General Reg 4096, Electrimotion

Effective 01/01/2021 any vehicle running a quicker ET than 6.50 ¼ mile or 4.15 1/8 mile must have Electrimotion system fitted with the following functions, Fuel Shut off, Ignition shut down and parachute release device must be functional.

Mandatory

 
 

http://www.electrimotion.com/


 

HELMET EJECT SYSTEM

General Reg 2885, Safety Driver / Rider, Helmet

All Professional Categories, effective 1st January 2021. Eject Helmet Removal System (Part Number 890-01-30) mandatory and must be installed as per manufacturer’s instructions. A Stand 21 Lid Lifter head sock meeting SFI 3.3 may be used in lieu of the Eject Helmet Removal System.

Mandatory

 

General Reg 2886, Safety, Driver, Helmet

All other 4 wheel categories exceeding 6.50 ET ¼ mile (4.15 ET 1/8 mile) 

Effective 1st January 2021. Eject Helmet Removal System (Part Number 890-01-30) must be installed per manufacturer’s instructions. A Stand 21 Lid Lifter head sock meeting SFI 3.3 may be used in lieu of the Eject Helmet Removal System.

Mandatory

 

General Reg 2887, Safety, Rider, Helmet

Any Motorcycle running quicker than 7.50 ET ¼ mile (4.75 ET 1/8 mile)

Effective 1st January 2021. Eject Helmet Removal System (Part Number 890-01-30) must be installed per manufacturer’s instructions. A Stand 21 Lid Lifter head sock meeting SFI 3.3 may be used in lieu of the Eject Helmet Removal System.

Mandatory

 

 

ROLL CAGE HELMET BARS

General Reg 1090, Chassis / Frame, Roll Cage, Helmet Bar

Chassis Helmet Bars to conform to Figure 10.0

Mandatory

 
FIGURE 10.0
 

General Reg 1100, Chassis / Frame, Roll Cage, Helmet Bar

If Dragster or Hot Rod or Funny Car or Roadster or Altered or Junior Dragster then fitted with helmet bars.

Mandatory

 

General Reg 1105, Safety, Chassis / Frame, Roll Cage, Helmet Bar

If Dragster or Hot Rod or Funny Car or Roadster or Altered, any flat steel strap forbidden.

Effective 01/01/2021.

Mandatory

 

General Reg 1110, Safety, Chassis / Frame, Roll Cage, Helmet Bar

Existing Pre 2020 Dragster or Hot Rod or Funny Car or Roadster or Altered, then helmet bar constructed of 3/4-inch x 0.058 inch minimum or larger round tube only.

See Figure 10.0

Allowed

 

General Reg 1112, Safety, Chassis / Frame, Roll Cage, Helmet Bar

Junior Dragster All NEW chassis helmet bars must be constructed of 3/4 x 0.058 inch Chromoly, 3/4-inch x 0.083 Mild Steel, round tube only. Effective immediately.

See Figure 10.0

Mandatory

 

General Reg 1115, a Safety, Chassis / Frame, Roll Cage, Helmet Bar

If Dragster or Hot Rod or Funny Car or Roadster or Altered, (excluding Junior Dragster). All NEW chassis helmet bars must be constructed of 1-inch x 0.058 inch Chromoly, 1-inch x 0.118-inch Mild Steel, round tube only. Effective immediately.

Mandatory

 

General Reg 1120, Safety, Chassis / Frame, Roll Cage, Helmet Bar

If helmet bars required, then between ALL uprights of the roll cage.

Mandatory 

 
 

IHRA AUSTRALIA

TECHNICAL DEPARTMENT

 
 
 
  PERFORMANCE PARTNERS   AUSTRALIAN SUPPLEMENTARY RULEBOOK APP  
 
 
 
 
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