2011 Mt. Washington Hillclimb | Class Descriptions
Please note: If you have any questions regarding the various Class descriptions below or you have Safety-related questions pertaining to the construction of your race car, please call Don Taylor, our Chief Technical Inspector at his shop (603) 542-8549 or on his cell phone at (603) 543-7456 before you complete your Entry Application.
In addition to the class rules below all competing vehicles must adhere to the event’s detailed Safety Regulations found here.
2011 Mt. Washington Hillclimb Classes:
- Open Class: O
- Rally Class: R1 & R2
- Hillclimb Class: H1, H2, H3 & H4
- Vintage Class: V
- Electric Class: E
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OPEN
OPEN Class Designator: O
Cars competing in this class will range from stock appearance to open wheel cars and can be either two-wheel-drive (2WD) or all-wheel-drive (AWD). Accepted major modifications allowed to cars competing in this class include changes to the drive train, suspension, ground effects (wings, spoilers, splitters, etc.) and body work. In addition to the class rules below all competing vehicles must adhere to the event’s detailed Safety Regulations.
- All cars in this class will be required to have panels in place to protect the driver in the absence of doors, etc.
- Normally aspirated (No turbo, no supercharger) engines up to 5,100 cc are permitted for AWD cars in this class while normally aspirated engines up to 8,100 cc are permitted in 2WD cars in this class.
- Turbocharged or supercharged engines up to 3,000 cc are permitted in this class (either 2WD or AWD).
- If the engine is turbocharged or supercharged and the displacement is under 2,501 cc it must have a turbocharger restrictor of 40 mm or smaller.
- If the engine displacement is over 2,501cc it must have a 36 mm restrictor or smaller.
- All turbocharger restrictors will maintain the required opening for at least 3 mm and the specified opening must be positioned no further than 50 mm upstream from the turbocharger compressor wheel. The restrictor must be pressed or bolted to the turbocharger and may not allow any additional air to enter the turbocharger through anywhere other than the specified opening.
- Restrictors can be checked for compliance at any time and must be the specified dimension regardless of temperature when checked.
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RALLY – R1, R2
RALLY-1 (All-Wheel-Drive – AWD) Class Designator: R1
All cars entered in this class must be AWD, have a current log book from NASA, Rally America or CARS and be prepared in accordance with 2011 Rally America construction and safety requirements. Cars competing in this class must also conform to either the Rally America Open or Super Production (SP) competition class specifications. Cars in this class must utilize a window net on the driver’s door. Drivers and Co-Drivers competing in this class must also have current licenses from NASA, Rally America or CARS.
RALLY-2 (Two-Wheel-Drive – 2WD) Class Designator: R2
All cars entered in this class must be 2WD (such as Rally America Group 2 or Rally America Group 5), have a current log book from NASA, Rally America or CARS and be prepared in accordance with 2010 Rally America construction and safety requirements. Cars competing in this class must also conform to either the Rally America Group 2 or Group 5 competition class specifications. Cars in this class must utilize a window net on the driver’s door. Drivers and Co-Drivers competing in this class must also have current licenses from NASA, Rally America or CARS.
To access the complete Rally America Stage Rally Rule Book on-line, please visit the following page: http://rally-america.com/rules.php
Please note that the 2011 Rally America Rule book will be available online shortly.
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HILLCLIMB – H1, H2, H3 or H4
In order to be considered for participation in classes H1, H2, H3 or H4, cars entered in this class must have successfully competed in at least one (1) recognized New England Hillclimb Association (NEHA) hillclimb event prior to January 1, 2011.
Also, in classes H1 through H3, 2WD cars may use a turbocharger or supercharger. However, the actual displacement in cc’s will be multiplied by a factor of 2 to determine the displacement that will be used for classification purposes. If a Rotary engine is used, the engine’s actual displacement in cc’s will be multiplied by a factor of 1.62 to determine the displacement that will be used for classification purposes.
HILLCLIMB-1 Class Designator: H1
This class is for purpose-built two-wheel-drive (2WD) or normally aspirated (non-turbo) all-wheel-drive (AWD) cars and includes open or closed wheel cars. Body panels must be in place to protect the driver in the absence of doors, etc. Engines up to 8,100 cc will be permitted and tube frame construction is allowed in this class.
HILLCLIMB-2 Class Designator: H2
This class is for production-based two-wheel-drive (2WD) or normally aspirated (non-turbo) all-wheel-drive (AWD) cars with engines from 2,501 cc displacement up to 7,000 cc. Most of the stock flooring and platform must remain in place. Tube frame construction is not allowed in this class.
HILLCLIMB-3 Class Designator: H3
This class is for production-based two-wheel-drive (2WD) or normally aspirated (non-turbo) all-wheel-drive (AWD) cars with engines up to 2,500 cc displacement. Most of the stock flooring and platform must remain in place. Tube frame construction is not allowed in this class.
HILLCLIMB-4 Class Designator: H4
This class is for All-Wheel-Drive (AWD) Turbocharged cars. All cars participating in this class must have been originally available for sale in the United States.
- These cars must retain their original driveline configuration from the factory. Driveline components are free provided:
- They must be sourced from the Original Equipment Manufacturer and have been available for purchase in a USDM vehicle.
- They must have a factory Engine Electronic Control Module (ECM) and use the factory engine sensors. The ECU and sensors must be correct for the engine being used. Engine ignition timing and fuel injection must only be controlled by the ECM.
- Turbochargers, intake manifolds, and exhaust manifolds used on cars in this class must be available from the manufacturer and be correct for the engine being used. No aftermarket or factory performance division turbochargers or manifolds will be allowed.
- All suspension components must be stock and be mounted in the stock location with the following exceptions:
- Springs and shock absorbers are free but must mount to the stock points.
- Anti-Roll Bars are free but must mount to the stock points.
- Bushing type and material are free but they must mount to the stock points.
- All exterior body panels, interior door panels, and dashboard must be retained. Two front seats are to be fitted to the car. A stock front seat on the unoccupied (passenger) side of the car is allowed. All factory glass must be retained.
- The minimum weight of the car must be 3,000 lbs without the driver.
- Water or methanol injection is not permitted.
- Boost is free.
- Tubing and pipes between the turbocharger outlet and the throttle body will not exceed a measurement of 3 inches inside diameter (ID).
- 1988 to 1995 On-Board-Diagnostic (OBD-1) systems: no reprogramming of the ECM is allowed and no EPROM chips or sockets will be allowed. A 50 mm restrictor or smaller must be used on the turbocharger.
- 1996 to present On-Board-Diagnostic (OBD-2) systems: changes in fuel and timing mapping allowed using the stock ECM only. A 40 mm or smaller restrictor must be on the turbocharger.
- All turbocharger restrictors will maintain the required opening for at least 3 mm and the specified opening must be positioned no further than 50 mm upstream from the turbocharger compressor wheel. The restrictor must be pressed or bolted to the turbocharger and may not allow any additional air to enter the turbocharger through anywhere other than the specified opening.
- Restrictors can be checked for compliance at any time and must be the specified dimension regardless of temperature when checked.
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VINTAGE (invitation only)
Vintage Class Designator: V
This class is not open to the public as the participants will be through invitation only. Cars participating in this class must be from 1961 or older and will participate in the 2011 Mt. Washington Hillclimb under the safety guidelines of the Vintage Sports Car Club of America (VSCCA). Participants competing in the Vintage class at the 2011 Mt. Washington Hillclimb will attempt to see who can come the closest to matching their two timed runs on race day. The driver who posts the two closest matching times in their two timed runs on Sunday will be declared the winner.
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ELECTRIC
Electric Class designator: E
This class is for fully electric cars (no hybrids). Cars participating in this class may utilize bolt-in roll cages only if approved by event organizers in advance. Cars participating in this class must abide by all other approved safety requirements for the 2011 Mt. Washington Hillclimb.