View: HTMA 600 Pro Series Rules Universal 600 Engine Rules
2010 HTMA 600 Pro Series Rules
download rules: The HTMA 600 Pro Series rules.doc
Engine:
The HTMA 600 Pro Series will follow the current 600cc engine rules as adopted at the 2009 U6SA rule meeting
Chassis:
Must be a "microsprint" type chassis. Side mounted engine chain drive. Fuel bladder as defined by the U6SA must be installed on the car
Tire:
To accumulate series points you must have Hoosier on all 4 corners. There is no compound rule. A driver may compete for the race purse on American racer but cannot accumulate series points
Protest:
Protest may be made against another competitor. $1,500.00 cash is required to initiate the protest. The engine in question will be removed from the chassis and placed in the custody of a HTMA 600 Pro Series official. U6SA protest committee head Glenn Lewis will examine the engine and determine if the engine is "legal" as defined by the 2009 U6SA engine rules. If the engine is found to be "legal" $1,000.00 will be given to the owner of the engine in question. $500.00 will be retained by the HTMA 600 Pro Series. if the engine in question is deemed "illegal" $1,000.00 will be refunded to the protestor and the owner and driver of the engine in question will be stripped of all series points and banned from competing in all remaining HTMA 600 Pro Series sanctioned events.
Competition:
All HTMA 600 Pro Series members in good standing are eligible to receive race points. A $35.00membership fee is required along with a completed registration form before the start of a HTMA 600 Pro Series event. If a competitor joins the HTMA 600 Pro Series after the first race of the 2010 season that member will be paid their season finishing point position less ½ of the last place money. For example. The competitor joins the HTMA 600 Pro Series during the second race of the 2010 season and competes in the remaining series races and finishes 6th in series points that competitor would be paid 6th place money less ½ of what last place is paying. 6th place = $750.00 minus $150.00 = $600.00
Points:
All HTMA 600 Pro Series members will receive series points as follows:
Feature:
A FEATURE POINTS
1. 150 9. 132 17. 116
2. 146 10. 130 18. 114
3. 144 11. 128 19. 112
4. 142 12. 126 20. 110
5. 140 13. 124 21. 108
6. 138 14. 122 22. 106
7. 136 15. 120 23. 104
8. 134 16. 118 24. 102
25th - 30th position will receive 100 pts
All non qualifing HTMA 600 Pro Series members in good standing will receive 75 points.
Two provisional starting positions will be available at each HTMA 600 Pro Series event. The 1st provisional position, 25th will be reserved for the highest non qualifying HTMA 600 Pro Series member. One provisional per series racing season can be used. If an eligible driver elects not to utilize their provisional starting position it will be offered to the next eligible driver. All HTMA 600 Pro Series points go with the driver. Series points at the end of the 09 season will be used to determine the provisional starting position for the first series race of the season
The 2nd provisional starting position , 26th will be reserved for the hosting track's current 600cc class champion. No other drivers will be eligible.
Qualifying:
The Pa. 600 Speed week two heat format will be utilized for qualifying. Pills will be drawn at sign in to determine heat starting position. Passing points will be calculated from where each competitor starts the event at the drop of the green flag. All competitors must take the green flag and officially be scored for at least one lap to accumulate qualifying points. In the event the original starting lineup is altered each competitor will advance their position numerically (criss cross) this will also be ultilized for the C and B mains if required. Heat races will consist of 10 laps for tracks that are ¼ mile or smaller. Tracks that are larger than ¼ mile will consist of 8 laps. B/C mains will consist of 20 laps for tracks ¼ mile or smaller and 15 laps for tracks that are larger than ¼ mile Features will consist of 30 laps for ¼ mile or smaller and 25 laps for tracks larger than ¼ mile
These rules and procedures are subject to change at any time during the racing season
600cc Micro Sprint Universal Engine Rules
download rules: Universal 600 Engine Rules.pdf
1. Terms and conditions
- Internal Stock parts - must use original manufacturer parts for the particular year and make engine except where noted. No mixing of parts from different year and make engines, even if made by the same manufacturer. Non stock external bolt on parts may be used (example: billet oil pan, starter, water pump cover, oil cooler, pipes, etc.).
2. Overall Engine
- Must be a Production Motorcycle Engine, 4 cylinder, 4 stroke.
- Current year engines allowed.
- No Titanium anywhere in or on the engine, unless it comes stock form manufacturer of engine on the production bike.
- Must have engine, clutch, and transmission all in one unit.
- Must be Chain Drive.
3. Bore and stroke
- 600cc Maximum for engine model that was new in 2006 and up. Other engines are 637cc maximum. Engine model is defined as a manufacturer redesign of overall engine. See Specification list. In the racing year starting in 2013 displacement may not exceed 600cc on any engine.
- Standard Stroke only (no strokers).
4. Head and cams
- NO PORTING, Blending the Bowls, or Blending the Valve Seats (exhaust or intake) Valve jobs are acceptable.
- Cams do not need to be stock, but the lift must be no greater than stock. (duration is open).
- Cam timing may be adjustable.
- May use any valves, but they may be no larger than stock valves.
- Head may be resurfaced.
- Any head gasket may be used.
5. Pistons
- Any Piston may be used, must be within cc limit specified under bore and stroke.
6. Bottom End
- No machining to remove weight from the crank (no after-market cranks) (no lightweight cranks).
- Stock connecting rods must be used (no after-market rods).
- Aftermarket rod bolts may be used.
7. Clutch/Transmission
- The clutch does not need to remain stock, but must remain operable.
- Transmission gears must be stock, no close-ratio gears or nonstandard gear-ratios.
- All gears must remain in transmission, no removing any gears.
8. Ignition
- Stock Rev Limiter must remain intact at all times (ex: no switched or gear specific limiters). No hot ECU boxes, no modified ECU boxes. Factory race boxes are ok, but must have the rev limit set to the street bike stock rev limit. If a computer is hooked up to check the ECU it must be set to factory stock specifications, no tolerance. See specifications list for RPM limits.
- All cars must have the PA standard connector for the track to check engine rpm rev limit. These are available from the chassis manufactures and engine builders, and at the track. All cars must leave intact the rpm wire coming from the ECU.
- Stock appearing ignition must be used (no after-market ignition systems, factory race ignitions are ok) may use different year ignitions from same manufacturer as long as stock rev limit of engine (not ignition) is retained.
- No aftermarket coils.
- Engines that came with stock fuel injection may use an after-market add ons (example: Power Commander, Dim Sport) to adjust the fuel curve and/or timing (essentially the same as adjusting jetting and using an ignition advancer).
- Ignition advancers may be used.
9. Induction system
- No mechanically forced induction (turbo charging, supercharging).
- Any carburetors may be used on any engine, regardless of year of engine.
- If the engine did not come from the factory with fuel injection, fuel injection may not be used.
- If the engine came with factory fuel injection, the fuel injection may be used and may be converted for use with alcohol. The stock fuel injection throttle bodies must remain, but may be modified for use with alcohol. Any number of injectors may be used regardless of stock number of injectors.
10. Exhaust
- Any exhaust may be used, as long as there is a muffler included with the system that will keep noise levels within individual track limits.
11. Charging system
- The stock original factory charging system may not be removed, and must remain in complete working order. No factory racing charging systems.
12. Self Starting
- The engine must self-start at the beginning of the event. If it does not self-start, the car may be pushed off and must start at the rear of the event as the penalty.
13. Fuel
- Alcohol or gasoline may be used, no exotic fuel additives, non flammable top lube only, no fuel enhancer top lube.
- Fuel tanks must contain a bladder. A fuel tank with a bladder is further defined as a plastic outer shell with a rubber inner container.
14. Minimum weight
- Minimum weight at all times is 775 pounds, car and driver. If weight is added it must be firmly bolted in place.