New AMA Vintage Rules and Classes for 2011

Discussion in 'Old's Cool' started by Donzzilla, Jan 7, 2011.

  1. Donzzilla

    Donzzilla Been here awhile

    Joined:
    Nov 4, 2008
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    Location:
    Brackney,PA
    2011 AMA Racing National Vintage Dirt Track Championship Series
    Supplemental Regulations

    The 2011 AMA Racing Rulebook Governing Pro/Am, Standard, ATV and Youth Competition and
    these Supplemental Rules will govern these events.

    AGE AND ELIGIBILITY
    1. To compete in the 2011 AMA Racing National Vintage Dirt Track Championship Series,
    participants must be at least 18 years old on the date of the event.
    Please see the 2011 AMA Racing rulebook for regulations regarding rider eligibility.

    GENERAL
    1. AMA Pro Racing license holders must wait one full year after their pro license expires to be
    eligible for Amateur National competition.
    2. If one or more main events cannot be run, results will be awarded based on heat and/or semi
    results.
    3. Three entries minimum are required to make a class.
    4. Limit of four classes per rider per meet.
    5. Knobby tires will NOT be permitted.
    6. Only riders who qualify for main events will receive points.
    7. All riders who qualify for a main event but are unable to start will receive nine points which is
    equal to a 12th place finish position.
    8. Riders who are disqualified from a main event will not receive points.
    9. Points Scale
    Pos Pts Pos Pts Pos Pts
    1st 30 10th 11 19th 2
    2nd 25 11th 10 20th 1
    3rd 21 12th 9
    4th 18 13th 8
    5th 16 14th 7
    6th 15 15th 6
    7th 14 16th 5
    8th 13 17th 4
    9th 12 18th 3

    10. Ties in the final standings will be broken for 1st, 2nd and 3rd places only. The first tiebreaker
    is the better finish in the final main event in the class; the second tiebreaker is the better finish
    in the next to last main event in the class, etc. If the main events are run in an order different
    than originally scheduled, e.g. because of a rain delay, the actual order in which the races took
    place will apply.
    11. The machine the rider brings to the starting line for his/her first heat is considered the qualified
    machine for that day’s event.





    EQUIPMENT
    1. Standard flat track front spools and real knock off wheels are allowed on all no brake machines.
    2. OEM, like make and model = parts or accessories from the same make and model motorcycle.
    No mixing or matching different makes or model parts or accessories. Different year parts
    from the same make and model are allowed.
    3. Era correct = parts or accessories that were made in the time period or similar reproductions.
    4. 1969-1976 any brakes – 2 pistons max.
    5. No hydraulic clutches in any classes.
    6. No pumper type carburetors are allowed in any class.
    7. All drain plugs must be safety wired. No exceptions.
    8. All axles and swing arm pivots must be steel.
    9. All 2-stroke machines must have a packed silencer.
    10. No front fenders allowed on any machine.
    11. No electrical engine monitoring or management systems.
    12. Restrictor requirements for all RS750 Honda s and XR750 Harley-Davidsons must be
    equipped with restrictor plates, one per cylinder the restrictor plate is a 1/8 (0.125" or
    3.175mm) inch thick plate, containing a round 33mm (1.299") hole in the center of the air path.
    the hole must have square corners (no radius or chamfer on either side) the minimum size
    for carburetors is 38mm. the restrictor plate must be installed directly at the rear end and in
    contact with the carburetor casting the manifold on the cylinder head side of the restrictor plate
    must have a minimum inside diameter of 35mm for a distance of 1" in contact with the restrictor
    plate.

    CLASSES

    FACTORY WARS (BRAKELESS)
    CLASS: PRE 1951 750cc side valve or 500cc over head valve 4 stroke only
    No brakes in oval competition. Brakes in TT racing only
    Front tire-2.70x7.0 or 4:00 maximum
    Front rim-wm-3 2.15" maximum spoke type only. No mag type wheels
    Rear tire-2.70x7.0 or 4:00 maximum
    Rear rim-wm-3 2.15" maximum. Spoke type only. No mag type wheels
    Forks-OEM. Era correct stiffening allowed. No adjustable triple clamps
    Gas tank-OEM
    Frame-OEM. Era correct stiffening allowed
    Seat-era correct
    Oil tank-OEM
    Motor-mfg. Must match frame and forks. Like, make and model
    Head-OEM, like, make and model
    Cylinder-OEM, like, make and model .080 overbore and mfg stroke
    Cases-OEM, like make and model
    Ignition-era correct. Aftermarket ignitions allowed, but must be hidden
    Carburetor-era correct OEM or Linkert m&s series, amal type 29, 76, and 276
    TT, RN no Mikuni's or Kehin's
    Restrictors-none
    Transmission- OEM, like make and model. 4 speed max. No foot shift or hand clutch
    Conversions on bikes originally hand shift
    No military hand clutch conversions
    Shocks-rigid rear suspension only
    Exhaust-era correct
    TT brakes front-OEM, like make and model drum only
    TT brakes rear-OEM, like make and model, mechanical drum only
    80ci limit in TT racing only OEM mfg. Bore and stroke

    250 IRONMAN (BRAKELESS)
    CLASS: 1952-1968 0-250cc 2-stroke or 4-stroke
    No brakes in oval competition. Brakes in TT racing only
    Front tire-2.70x7.0 or 4:00 maximum
    Front rim-wm-3 2.15" maximum. Spoke type only. No mag type wheels
    Rear tire-2.70x7.0 or 4:00 maximum
    Rear rim wm-3 2.15" maximum. Spoke type only. No mag type wheels
    Forks-OEM or era correct. 35mm max dia. Conventional design only
    No adjustable triple clamps
    Gas tank-era correct
    Frame-OEM twin shock or rigid. Aftermarket rigid frames only
    Seat-OEM or era correct
    Oil tank-OEM or era correct
    Motor-mfg. Approved for competition
    Head-OEM, like, make and model
    Cylinder- OEM, like, make and model .080 overbore and mfg stroke
    Cases-OEM, like make and model
    Ignition-era correct. Aftermarket ignitions allowed, but must be hidden
    Carburetor-era correct 32mm maximum for singles 28mm for twins. Linkert
    m,l&stillotsen, del 'orto ssi, amal mono block, concentric, gp and TT. Irz
    32mm. Mikuni vm flange mounts or spigot mount round slides. No flat slides
    Restrictors-no reed valves
    Transmission-OEM, like make and model. 5 speed max.
    Shocks-OEM or era correct. No piggy back shocks
    Exhaust-era correct
    TT brakes front-mechanical drum only. Era correct
    TT brakes rear-mechanical drum only. Era correct

    750 IRONMAN (Brakeless)
    CLASS: 1952-1968 251cc-750cc 4 stroke side valve or 251cc-500cc over head valve, 2
    Or 4 stroke
    No brakes in oval competition. Brakes in TT racing only
    Front tire-2.70x7.0 or 4:00 maximum
    Front rim-wm-3 2.15" maximum spoke type only. No mag type wheels
    Rear tire-2.70x7.0 or 4:00 maximum
    Rear rim wm-3 2.15" maximum spoke type only. No mag type wheels
    Forks-OEM or era correct. 35mm max dia. Conventional design only
    No adjustable triple clamps
    Gas tank- era correct
    Frame-OEM twin shock or rigid. Aftermarket frames rigid only
    Seat-era correct
    Oil tank-era correct
    Motor-mfg. Approved for competition
    Head-OEM, like, make and model
    Cylinder- OEM, like, make and model .080 overbore and mfg stroke
    Cases-OEM, like make and model
    Ignition-OEM or era correct. Aftermarket ignitions may be used but must be hidden
    Carburetor-OEM or Linkert m,l&s, tillotsen, del'orto ssi, amal monoblock and concentric, gp,
    TT, irz 2mm. Mikuni vm flange mount or spigot mount round slides. No flat slides
    allowed restrictors no reed valves
    Transmission-OEM, like make and model. 5 speed max.
    Shocks-OEM or era correct. No piggy back shocks
    Exhaust-era correct
    TT brakes front-mechanical drum only era correct
    TT brakes rear-mechanical drum only era correct
    TT racing 900cc maximum displacement

    250 HOTSHOE
    CLASS: 1969-1976 175cc-250cc 2 stroke singles only. 4 stroke singles and twins allowed
    Rear brakes mandatory. No front brakes in oval competition
    Front tire-2.70x7.0 or 4:00 maximum
    Front rim-wm-3 2.15" maximum. Mag or spoke type allowed
    Rear tire-2.70x7.0 or 4:00 maximum
    Rear rim wm-3 2.15" maximum. Mag or spoke type allowed
    Forks-OEM or era correct. 35mm max dia. Conventional design only
    no adjustable triple clamps. Fixed aluminum triple clamps allowed
    Gas tank- era correct
    Frame-OEM, modified allowed or era correct replacement. Twin shock or rigid
    Seat-era correct
    Oil tank-era correct
    Motor-mfg. Approved for competition
    Head-OEM, like, make and model
    Cylinder- OEM, like, make and model .080 overbore and mfg stroke
    Cases-OEM, like make and model
    Ignition-era correct. Aftermarket ignitions allowed, but must be hidden
    Carburetor-era correct. No mm limit. No Mikuni or Kiehin flat slides
    Restrictors-none
    Transmission- OEM, like make and model. 5 speed max.
    Shocks-OEM or era correct. No piggy back shocks
    Exhaust-era correct
    TT brakes front-OEM or era correct disc, two piston max.
    Brakes rear-OEM or era correct disc, two piston max

    360 HOTSHOE
    CLASS: 1969-1976 251cc-360cc 2 stroke singles or 4 stroke singles and twins. 250cc twins in this
    class.
    Rear brakes mandatory no front brakes in oval competition
    Front tire-2.70x7.0 or 4:00 maximum
    Front rim-wm-3 2.15" maximum. Spoke or mag type allowed
    Rear tire-2.70x7.0 or 4:00 maximum
    Rear rim wm-3 2.15" maximum. Spoke or mag type allowed
    Forks-OEM or era correct. 35mm max dia. Conventional design only
    No adjustable triple clamps. Fixed aluminum triple clamps allowed
    Gas tank- era correct
    Frame-OEM, modified allowed or era correct replacement twin shock or rigid
    Seat-era correct
    Oil tank-era correct
    Motor-mfg. Approved for competition
    Head-OEM, like, make and model
    Cylinder-OEM, like, make and model .080 overbore and mfg stroke
    Cases-OEM, like make and model
    Ignition-era correct. Aftermarket ignitions allowed, but must be hidden
    Carburetor-era correct. No mm limit. No Mikuni or Kiehin flat slides
    Restrictors-none
    Transmission-OEM, like make and model. 5 speed max.
    Shocks-OEM or era correct. No piggy back shocks
    Exhaust-era correct
    TT brakes front-OEM or era correct disc. 2 piston max
    Brakes rear-OEM or era correct disc. 2 pistons max

    750 HOTSHOE
    CLASS: 1969-1976 335cc-750cc multi cylinder 2 or 4 stroke
    Rear brakes mandatory. No front brakes in oval competition
    Front tire-2.70x7.0 or 4:00 maximum
    Front rim-wm-3 2.15" maximum. Spoke or mag type
    Rear tire-2.70x7.0 or 4:00 maximum
    Rear rim wm-3 2.15" maximum. Spoke or mag type
    Forks-OEM or era correct. 35mm max dia. Conventional design only
    No adjustable triple clamps. Fixed aluminum allowed
    Gas tank- era correct
    Frame-OEM, modified allowed or era correct replacement twin shock or rigid
    Seat-era correct
    Oil tank-era correct
    Motor-mfg. Approved for competition
    Head-OEM, like, make and model
    Cylinder-OEM, like, make and model .080 overbore and mfg stroke
    Cases-OEM, like make and model. Pre 1988 oil pump only on xr750's
    Ignition-era correct. Aftermarket ignition allowed, but must be hidden
    No motoplat or pvl ignition on xr750's
    Carburetor-era correct
    Restrictors-none
    Transmission-OEM, like make and model. 5 speed max.
    Shocks-OEM or era correct. No piggy back shocks
    Exhaust-era correct
    TT brakes front-OEM or era correct disc, 2 piston max
    Brakes rear-OEM or era correct disc, 2 piston max
    No 1989 or later engine components allowed on HD xr750's

    250 MASTERS
    CLASS: 1977-1988: 250cc 2-stroke; singles only
    Rear brakes-mandatory no front brakes in oval competition front brakes in TT racing only
    Front tire-2.7x7.0 or 4:00 maximum
    Front rim-wm-6 3.50" maximum. Spoke or mag type
    Rear tire-2.75x7.5 or 4:00 maximum
    Rear rim-wm-6 3.50" maximum. Spoke or mag type
    Forks-OEM or era correct. Any diameter, conventional design only adjustable triple clamps
    allowed
    Gas tank-era correct
    Frame-OEM, stiffening allowed or era correct replacement twin shock or Roberts mono
    shock, early C&J mono shock (horizontal shock on top of motor) Honda factory dirt
    track, rs linkage frame or Panther-Bolger linkage frame
    Seat-era correct
    Oil tank-era correct
    Motor- mfg. Approved for competition
    Head-OEM, like, make and model
    Cylinder-OEM, like, make and model .080 overbore and mfg stroke
    Cases-OEM, like make and model
    Ignition-era correct
    Carburetor-era correct
    Restrictors-none
    Transmission-OEM like make and model. 5 speed max.
    Shocks-OEM or era correct. Piggy backs allowed. No remote reservoirs
    Exhaust-era correct
    TT brakes front-OEM or era correct disc, multi piston allowed
    Brakes rear-OEM or era correct disc, multi piston allowed

    500 MASTERS
    CLASS: 1977-1988; 504cc 4 stroke singles only
    Rear brakes mandatory no front brakes in oval competition
    Front brakes in TT racing only
    Front tire-2.7x7.0 or 4:00 maximum
    Front rim-wm-6 3.50" maximum. Spoke or mag type rim
    Rear tire-2.75x7.5 or 4:00 maximum
    Rear rim wm-6 3.50" maximum. Spoke or mag type rim
    Forks-OEM or era correct. Any diameter, conventional design only adjustable triple clamps
    allowed
    Gas tank -era correct
    Frame-OEM, stiffening allowed or era correct replacement twin shock or Roberts mono
    shock, early C&J mono shock (horizontal shock on top of motor) Honda factory dirt
    track, rs linkage frame or Panther-Bolger linkage frame
    Seat-era correct
    Oil tank-era correct
    Motor-mfg. Approved for competition
    Head-OEM, like, make and model
    Cylinder-OEM, like, make and model .080 overbore and mfg stroke
    Cases-OEM, like make and model
    Ignition-era correct
    Carburetor-era correct
    Restrictors-none
    Transmission- OEM, like make and model. 5 speed max.
    Shocks-OEM or era correct. Piggy backs allowed. No remote reservoirs
    Exhaust-era correct
    TT brakes front-OEM or era correct disc, multi piston allowed
    Brakes rear-OEM or era correct disc, multi piston allowed





    750 MASTERS
    CLASS: 1977-1988 375CC-500cc 2 stroke singles: 504cc-600cc 4 stroke singles: 501cc-750cc
    twins
    Rear brakes mandatory. No front brakes in oval competition
    Front brakes in TT racing only
    Front tire-2.7x7.0 or 4:00 maximum
    Front rim-wm-6 3.50" maximum. Spoke or mag type allowed
    Rear tire-2.75x7.5 or 4:00 maximum
    Rear rim-wm-6 3.50" maximum. Spoke or mag type allowed
    Forks-OEM or era correct. Any diameter, conventional design only
    Gas tank-era correct
    Frame-OEM, stiffening allowed or era correct replacement twin shock or Roberts mono
    shock, early C&J mono shock (horizontal shock on top of Motor) Honda factory dirt
    track, rs linkage frame or Panther-Bolger linkage frame
    Seat-era correct
    Oil tank-era correct
    Motor-mfg. Approved for competition
    Head-OEM, like, make and model no d port head on xr 750. Single plug only
    Cylinder- OEM, like, make and model .080 overbore and mfg stroke
    Cases-OEM, like make and model. No big oil pump on xr 750's. 1988 or older
    oil pump only
    Ignition-era correct no motoplat or pvl on xr750's
    Carburetors-singles, un-restricted. Xr750 and rs75 must have a 33mm intake restrictor and a
    38mm or larger carb. All other twins no mm limit or restrictors required
    Transmission-OEM, like make and model. 5 speed max.
    Shocks-OEM or era correct. Piggy backs allowed. No remote reservoirs
    Exhaust-era correct
    TT brakes front-OEM or era correct disc, multi piston allowed
    Brakes rear-OEM or era correct disc, multi piston allowed
    Any single cylinder 4 stroke approved for AMA competition before 1988 can be bored (no
    stroking) up to 600cc's and run un-restricted in this class
    Any single cylinder 4 stroke over 600cc's must have a 38mm or smaller carburetor
    HD xr750 may not use any 1989 or newer engine components

    HOT ROD SINGLES OPEN
    CLASS: Pre 1988 Open Singles 2 Or 4 Stroke
    Rear brakes mandatory.
    No front brakes in oval competition. Front brakes allowed in TT racing only.
    Engine cases only must be from a 1988 or earlier AMA approved for competition motorcyc

    HOT ROD MULTIS OPEN
    CLASS: Pre 1988 Open Multi Cylinders 2 Or 4 Stroke
    Rear brakes mandatory in oval competition.
    No front brakes in oval competition. Front brakes allowed in TT racing only
    Engine cases only must be from a 1988 or earlier AMA approved for competition motorcycle

    50+ AND 60+ VINTAGE OPEN
    ALL '69-'88 vintage legal and open legal bikes eligible
    Rear brakes mandatory in oval competition.
    No front brakes in oval competition. Front brakes allowed in TT racing only
    Engine cases only must be from a 1988 or earlier AMA approved for competition motorcycle
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