IHRA-Australia


IHRA TECHNICAL BULLETINS :
Please use this area to keep up to date with the Latest in Rules and updates as they are implemented. This area is designed for both Professional and Sportsman Classes.


24/05/2017:-

Field Size Clarification – Supercharged Outlaws – Top Sportsman

Supercharged Outlaws

Class Reg 31620, Supercharged Outlaw

This bracket consists of all  vehicles that qualify between 0.00 and 7.99 seconds or (1/8 mile equivalent)

Top Sportsman

Class Reg 32210, Top Sportsman

This bracket consists of  all sedans that qualify between 0.00 and 8.99 seconds or (1/8 mile equivalent)

 

13/04/2017:-

Junior Dragster Rule Amendment

Class Reg 29000, Junior Dragster

If A/JD, and during qualifying, then ET quicker than 7.90 seconds but no quicker than 7.80 seconds permitted, and then only once per event.

Class Reg 29020, Junior Dragster

If B/JD, and during qualifying, then ET quicker than 8.50 seconds but no quicker than 8.40 seconds permitted, and then only once per event.

Class Reg 29030, Junior Dragster

If C/JD, and during qualifying, then ET quicker than 11.90 seconds but no quicker than 11.80 seconds permitted, and then only once per event.

Class Reg, 28940, Junior Dragster, Vehicle Controls

Throttle and brake, operated by foot. Positive throttle return spring in use.

Class Reg 28780, Junior Dragster, Engine, Exhaust, Muffler

Silencer or Muffler Optional.

Class Reg 28790, Junior Dragster, Engine, Exhaust, Muffler

Muffler Optional

Please Note:

As a Friendly Reminder this rule will be enforced

Class Reg 29050, Junior Dragster

If parent/guardian fails to withdraw their racer from event due to exceeding ET cut-off limits, then racer is suspended for 2 meetings and fined $1,000


08/04/2017:-
Simpson Performance Products Snell SA 2015 Certified Voyager 2 Helmet Recall

 

ihra-australia-simpson-helmt-recall-20171104


03/11/2016:-
BYE RUNS: Rule Number # 7860 All bye runs must produce a winner.
HANDS OF STARTER:  Rule Number # 7855 Hands of the Starter A vehicle is deemed to be in the hands of the starter when the front wheel/s enter the designated burnout area.
IHRA Australia would like to clarify the ET cut offs for the 2016/2017 season for the following classes

Supercharged Outlaws, Top Sportsman, Super Sedan and Super Street
The following ET limits apply to the below brackets and will be run at all 400 Thunder Championship events:

Supercharged Outlaws 0 – 7.99
Top Sportsman 0 – 8.99
Super Sedan 8.50 – 10.99
Super Street 10.00 – 12.99

Pro Stock Motorcycle Weightbreaks effective June 2016

Suzuki 2 Valve 5.75 lbs. per Cube
Suzuki 4 Valve 5.75 lbs. per Cube
Kawasaki 2 Valve 5.75 lbs. per Cube
Kawasaki 4 Valve 5.75 lbs. per cube
Buell Billet Engine 665 lbs.
Kawasaki’s permitted to use Billet Crankcases.

The following points are also in place:
Engine sealing is Mandatory and any issues resulting in clarification of an engine size that hasn’t been tagged will result in the cylinder head being removed Post Event for measurement at the track. Failure to do so may/can void any results from the event.


 

If you have any further enquiries please email  technical@ihra.com.au