WE have deliberately kept the class structure at Street Machine Drag Challenge very simple, with just four tyre classes and one dial-your-own handicap class. Our ethos is 'run what you brung' with the rigours of street driving and track conditions helping to level the playing field.
Turbosmart - Outlaw Blown
For any turbocharged, supercharged or nitrous-assisted car running radials wider than 275, or slicks of any size. There are no limits to blower size, turbo size or how many stages of nitrous you’d like to run. You can even combine all three, if you are that crazy!
2017 Champion: Paul Hamilton
Tuff Mounts - Outlaw Aspirated
For any naturally-aspirated car running radials wider than 275, or slicks of any size.
2017 Champion: Stephen Micallef
Haltech - Radial Blown
For any turbocharged, supercharged or nitrous-assisted cars running a 275 radial or narrower. Again, there are no limits on turbo size, blower size or nitrous.
2017 Champion: Quentin Feast
Pacemaker Headers – Radial Aspirated
For any naturally-aspirated car running a 275 radial tyre or narrower.
2017 Champion: Alon Vella
K&N - DYO
If you don’t wish to compete in the tyre classes, you can run in Dial Your Own. DYO entrants must have run quicker than 11.99, though we reserve the right to make exceptions at our discretion.
2017 Champion: Blake Jefferys
Note: Radial tyres, for those classes that require them, will need a manufacturer’s metric size on the tyre. IE: 275, 255, 235, etc. Pro Radials or any other ‘street/strip’ tyres with Imperial measurements (IE: 28x9) will be put into the Outlaw Class.