2010 RULEBOOK

HTP Performance REAL STREET

SERIES: 8 event points series run at Rockingham Dragway and Maryland International Raceway.

DESIGNATION: All entrants must display, on both sides of the bike, the class designation R/S, preceded by rider number.

CLASS DESCRIPTION: Designed for late model, fuel injected, street-legal sport bikes with limited modifications. All bikes must be powered by a water- cooled engine and have come with fuel injection from the factory. To promote equitable competition despite a wide array of different rider weights, Real Street will have different wheelbase requirements for riders of different body weight.

FORMAT: Races will be a qualified 16-bike field. Qualifying and eliminations will be heads-up, run on a .400 pro tree, with all pro class rules in effect. Alternates will not be used unless a race official disqualifies a rider. If a rider is broke, alternates will not be used. Alternates must have completed at least one legal qualifying attempt and pass the “weigh in” in order to be eligible for alternate status. All non-qualifiers will be allowed to compete in a second 16-bike qualified field. This will allow racers to compete with other competitors of similar performance.

"B" Race: In the event there are more than 16 riders that are qualified, and to give the remaining riders a place to race; there will be a special "B" race for #17-#32 qualifiers run on a pro ladder. If any  riders in the #1-#16 bike field are broke, then the alternates in the #17-#32 field will replace them, but the ladder in the "B" race will not be re-done (they will be a single broke bye). 

MISSION STATEMENT: “OEM factory stock” means that the part must have been available for year, make, and model of motorcycle (i.e., If a rule says OEM factory stock part is required, then you cannot replace a part from a different year motorcycle or a different model or a different brand bike). Any racer that exploits any grey areas in the rules or debates with creative rule interpretations, the part in question will be deemed illegal. All racers need to construct their bikes within the spirit of these rules.

FRAME: OEM factory stock frames must be used, and cannot be modified in any way. VIN #s must be on frame and readable. OEM factory stock sub-frame must be used, and cannot be modified in any way. Powder coating, painting, and polishing of frame or sub-frame are permitted. Aftermarket “inner fenders” can be bolted to subframe for more tire clearance.

FRONT SUSPENSION: OEM factory stock bearings/races, lower triple clamp, axle, and forks required (none of these parts can be swapped with different year or model motorcycles). Aftermarket top triple clamp is permitted, but must retain factory offset. Forks may be internally lowered, cut, and shortened. Rigid front forks not allowed, a minimum of 1” of front suspension travel recommended. Steering dampers recommended, and may be required in the future. Front-end lowering retention straps are permitted.

REAR SUSPENSION: Aftermarket shock or aftermarket suspension link may be used (but not both). If your using an aftermarket shock then you must run OEM suspension rate linkage that came on your bike. If your using an aftermarket suspension link you must run an OEM shock (shock may be re-valved or use a different spring). Aftermarket dogbones and suspension connector links are permitted.

GROUND CLEARANCE: All components, including bodywork, must have a minimum of 3 inches of static ground clearance.  Static ground clearance measurements will be taken with rider seated on bike, hands on handlebars, and feet forward with heels only contacting the ground.  (Dynamic Ground Clearance: Ground clearance during the run, or dynamic ground clearance, constantly changes due to tire flex/growth, suspension movement, chassis and swingarm flex, etc. Because of the many variables involved in actual ground clearance during the run, there is no reasonable method to measure this value. Static ground clearance, or ground clearance with the bike sitting stationary, is the only defined measure for ground clearance. However, in the interest of safety, any entrant observed by the MIROCK technical staff to have an unsafe amount of dynamic ground clearance may be required to alter their bike or setup, even if they pass the static ground clearance measurement. This may be done at any time during the event, and the manner or methods of these alterations will be determined on a case-by-case basis).

SWINGARMS: Swingarm-style rear suspension required. Any stock, modified stock, or aftermarket swingarms will be allowed. Bolt-on extensions are not permitted. Chain guards are required on all entries.

BRAKES: OEM factory stock front and rear brake calipers and rotors are required. One brake caliper and rotor may be removed from the front. Aftermarket brake lines are permitted.

BODY: Front fender, upper fairing, and side fairings, must be OEM factory stock plastic. Upper fairing bracket must be stock and unmodified. Aftermarket extended tail sections are permitted. Gas tank must be OEM factory stock, and cannot be modified in any way. Side fairings may be trimmed for ground clearance, clutch cover, and exhaust clearance only (however 3/4 or 1/2 side fairings are not permitted). Any OEM body parts or frame tabs used for body mounts on the bottom that effect ground clearance may be removed (i.e., lower wings in front of rear tire). The entire body must be in stock location. Aftermarket windscreens allowed. Aftermarket gas caps allowed. All bodywork must be stock paint job, or custom painted (no primered parts allowed).

LIGHTS: OEM factory stock headlight system (including low beam and high beam) is required and cannot be modified. OEM factory brake light (including tail light and brake light) is required. All lights must be on during all qualifying and elimination runs.

SEATS: Minimum seat height, with rider in position, seat compressed and 8 psi in rear tire, measured from lowest point of seating position to ground is 22-inches. Stock OEM seat pan and seat latches are required. Upholstery and padding may be modified or replaced. Seats must be covered with fabric or vinyl.

ENGINE: Any internal engine modifications are allowed. Engine swaps from different year models are permitted, but motor must bolt into stock unaltered frame. Aftermarket blocks are prohibited. Dry sumps are prohibited. Stock oil pan is permitted and may be shortened, but drain bolt must be re-located to side of oil pan The minimum pan height for all models of bikes is 1.00”, measured at the center of the pan, unless otherwise noted.

CLUTCH: Slider clutches and lock-up clutches of any kind are prohibited. Clutch baskets, slave cylinders, and pressure plates can be switched between different year motorcycles. Billet clutch baskets and inner hubs are permitted. Modification of clutch to eliminate factory style back-torque cam assembly is permitted.

TRANSMISSIONS: All entrants must utilize an OEM-style shift drum, shift forks, and transmission. Shift drum must fit into unmodified OEM engine cases. Transmission components may be modified or replaced with aftermarket components of a similar design and function. “Automatic,” no-kill or override-shift style transmissions not allowed. No components may be used that are designed to allow the transmission to be simultaneously engaged in more than one gear. This includes, but is not exclusive to, windowed shift drums, split shift drums, split forks, split gears, split fork sliders rings, gear or fork detent and/or return springs, etc. Any entrant with any of these components is considered to have an automatic transmission, even if a fuel cut, ignition cut, or ignition retard is being utilized.

STARTING SYSTEM: Battery must remain in OEM factory stock location. A second battery is permitted but must be mounted behind or next to the stock battery location in the sub frame. Push starts are not permitted.

CHARGING SYSTEM: OEM factory stock charging system is required. They must be functional and operational at all times during qualifying and eliminations. All components of lighting system must be on at all times during the run, including the burnout and shutdown. Multiple light systems must have all bulbs operating.

COOLING SYSTEM: OEM factory stock radiator is required. Radiator may be modified or shortened to allow for proper tire clearance. Oil coolers/oil heat exchangers may be removed.

WHEELS: Aftermarket wheels are permitted, but must the same diameter as the stock wheels. Cast wheels must have a 180mm or greater width tire. Maximum rear width is 6.25-inch. Total weight of front wheel rotating assembly, including tire, rotor, bearings, etc cannot exceed 29 lbs. Front and rear wheels must be of matching styles and materials.  Wheels can be painted, powder coated, or polished. Ceramic wheel bearings are permitted.

FUEL INJECTION: OEM factory stock throttle bodies are required for year and model motorcycle depicted by VIN# (throttle bodies and injectors with 1 injector per cylinder cannot be swapped for models with 2 per cylinder). Aftermarket fuel injectors are permitted, but must be mounted in original OEM location. Throttle bodies may be bored to a larger size. Aftermarket throttle plates, fuel pumps, regulators, filters, fuel lines, and fuel rails are permitted. Secondary throttle plates (if originally equipped) may be modified, deactivated, or removed.

EXHAUST: Any type exhaust is permitted.

FUEL: Gasoline only is permitted. E85, nitro methane, and alcohol are prohibited.

ELECTRICAL: OEM Factory stock ECU and wiring harness is required (ECU and wiring harness can be swapped between different year motorcycles, but not between different model bikes). ECU may be re-flashed and/or modified to allow higher rev limit only (This is limited to a small opening no larger than 1 square inch on the stock ECU and must be filled with epoxy or silicone). Stand alone ECU’s are not permitted. Air shifters, shift lights, ignition kill boxes, multiple fuel injection controllers, and ignition timing control boxes are permitted. Two steps and auto shifters are prohibited.

DATA ACQUISITION: A single aftermarket oxygen sensor is allowed, and may data log air/fuel ratio and engine rpm only. It must be wired independently of any other systems on the vehicle, and any data collected may not be used to adjust any function of the bike during the run. OEM oxygen sensors may used, or may be deactivated or removed. No other type of data acquisition may be used, unless originally OEM-equipped. If OEM logging is present, it must remain unmodified, and may not be interconnected with any non-OEM system on the bike.

Any sensors, including infrared or ultrasonic, that measure the track Christmas tree or timing system, the track surface, or any structure of the track facilities are prohibited. Any non-contact sensor (sonic, infrared, radar, laser, etc) designed to detect or measure distance, position, or location is prohibited. The use of GPS, locator or position beacons, and locator or position transmitters is prohibited.

Third wheel sensors, which is the use of any wheel or rolling device other than the normal front steering or rear drive wheel/tire to measure speed, distance, or track position, is prohibited. This includes any sensors that detect or measure wheelie bar wheels.

LAUNCH CONTROL: Stutter boxes, 2-steps, or other devices designed to allow full-throttle launches not allowed.

NITROUS OXIDE: Any style dry nitrous system is permitted with any amount of solenoids or nozzles permitted.

SUPERCHARGERS: Entrants running a supercharger are limited to one supercharger, with any inlet housing diameter. Water injection and intercoolers are permitted. Any type of boost controller is permitted.

TURBOCHARGERS: Limited to one turbo with a maximum turbo inlet opening of 54.5mm. MIROCK defines maximum turbo size as the maximum allowable diameter of the inlet housing at the point where the leading edge of the compressor wheel meets the inlet housing. All air entering the turbo must pass through this opening. No stepped inducer wheels permitted, the contour from the inducer to the exducer must be continuous with no steps. The leading edge of inducer wheel may not exceed 54.5mm, and must fit inside the 54.5mm area of the inlet housing. The use of restrictor plates or stepped inlet housings in an effort to limit compressors with inducers larger than 54.5mm is not acceptable. Intercoolers are not permitted. Revised 1-20-10 Any type of boost controller is permitted. Water injection is permitted.  Cannot be combined with nitrous oxide.

TIRES: See chart below for rear drive tire. Front tires on all bikes must be Z rated and DOT approved.

WHEELBASE: Maximum wheelbase measurements are absolute, no over tolerance allowed. Wheelbase will be measured with rider sitting on bike.

GENERAL SAFETY: All riders must have full leathers (zipped together leathers are recommended and may be mandatory in future). All riders must have a SNELL 95 or higher full-face helmet with shield, leathers gloves, and shoes above the ankle. All motorcycles and riders must pass IHRA safety inspection. Ballistic blankets are recommended but are not required. Tether kill switches required on all entrants. Kill switch, when activated, must disable ignition, fuel pump(s) and nitrous system solenoids.

NITROUS BOTTLES: Bottles must be fully enclosed within the bodywork or swingarm. Bottles may not be mounted to foot pegs or outside of swingarm.

BALLAST: Ballast is not permitted.

BIKE & RIDER MINIMUM WEIGHT: No minimum weight for the class.

RIDER WEIGHT: All riders must weigh-in at tech inspection. Riders will only be allowed to wear one pair of underwear, one pair of shorts, one short-sleeved shirt, and one pair of socks while being weighed in (Shoes, jewelry, hats, watches, etc. must be removed, and all pockets must be empty). Riders will only be given one chance to weigh-in at tech inspection and will be required to run the wheelbase placed for that weight. Any rider caught attempting to hide ballast on their person will be disqualified from the event and will face a one-year suspension from MIROCK.

RULE REVISIONS: In order to maintain a level playing field, MIROCK will monitor the performance numbers of the numerous combinations of rider weights and power adders found in this class. From time to time, it may be necessary to adjust the wheelbase, ground clearance and weights to help promote class parity. Racers should take this into consideration when constructing their bikes, and should allow room in their swingarms, bodywork, fenders, etc. for changes in wheelbase and ground clearance. Any rule revisions deemed necessary by MIROCK would be officially posted a minimum of 14 days prior to the event in which they become effective. The official rules effective for any event will be those posted on the MIROCK website on the day that event begins. Any rule revision deemed necessary for the reasons of safety may be made at any time, even after the start of an event, and may be made effective immediately.