09/28/2026
Predator Rules
2026/2027 season
Adult Age: 15+
Predator 212 racers, Be sure you understand and follow our rules.
- Harbor Freight Stock Predator 212 Hemi motor only.
- The intent of this class is to run the motors out of the box with only modifications in these rules.
- If the rules don’t say you can alter it then it MUST be stock!
- Motor is to remain stock as from factory and will be teched to stock 212 Predator Hemi motors.
- No mixing of parts Hemi / Non-Hemi
- Removal of governor ok
- Removal of fuel tank is mandatory
- Air filter adapter ok
- Hemi motors must run a thick head gasket .042 min.
- Lapping of valves and seat ok.
- No grinding of valve seats is allowed.
- Main jet non-tech
- Low speed jet non tech.
- Valve springs will be tech to clone 10.8 and 18 pound checks.
- No valve spring shims allowed.
- No light weight retainers. Must be stock.
- Adult run big pipe and muffler, header must be wrapped but not muffler. NO MODIFICATIONS!!
- Muffler must be tight to the header. Lose muffler or header will be DQ’d
- DRUM CLUTCH ONLY!!!!!
- No building/blue printing will be allowed.
- Emma Indoor Raceway may tech or claim a motor at any time.
- Open tire rule for slick classes. Any manufacturer tread tire for treaded classes.
- Tire testing will be done in treaded classes. “I bought these tires used” is not an excuse.
- No Slicks or tire prep allowed in the Predator Treaded classes.
- Fuel: Pump gas 87 octane only NO OTHER ALTERATIONS
Cheating in this class will not be tolerated !!!