DaveInDaytona
10-15-2002, 07:46 PM
2003 AMA CHEVY TRUCKS U.S. SUPERBIKE CHAMPIONSHIP RULES
Only approved motorcycles are permitted in AMA Superbike competition.
AMA Pro Racing will accept homologation applications only from motorcycle
manufacturers or their distributors.
1. Allowable engine displacements and basic homologation requirements:
A. 551cc ? 750cc four-stroke, four cylinders:
Engines with displacements originally within this range may have cylinder bore
increased by a maximum of 2mm, with the resulting displacement not to exceed
800cc. Stroke must remain stock.
Homologation requirements will remain the same as current (2002) Superbike
requirements, including street certification in an FIM member country and a
minimum number of units imported into the US for sale.
B. 551cc ? 900cc four-stroke, three cylinders:
551cc ? 1000cc four-stroke, twin cylinders:
Homologation requirements will remain the same as current (2002) Superbike
requirements.
C. 901cc ? 1000cc four-stroke, three or more cylinders:
This is a new displacement category offered as an option beginning with the 2003
season.
Homologation requirements include street certification in the U.S. and a higher
minimum number of imported units relative to current Superbike requirements.
2. Weight:
Minimum weight for all superbikes will be increased to 370 pounds from the
current 355 pounds.
3. Other major technical regulations:
Except for the items previously noted, 750cc four cylinders, 900cc three
cylinders and 1000cc twin cylinders will be subject to all current (2002)
Superbike technical regulations for the 2003 season.
1000cc equipment with three or more cylinders will be subject to the following
major technical regulations:
A. Frames must be stock except for the addition of strengthening gussets
and the removal or relocation of accessory brackets (same as current rules).
B. Aftermarket forks, shocks and swingarms will be permitted.
Forks/shocks will be subject to claiming rules (same as current rules).
C. Aftermarket wheels (except carbon composite) will be permitted. Rear
wheel maximum width is 6.25" (same as current rules).
D. Aftermarket brakes (except carbon composite) will be permitted (same
as current rules).
E. Aftermarket fairings and body work will be permitted (same as current
rules).
F. Cylinder heads may be ported and machined, but altering of valve
angles will not be permitted.
G. Aftermarket valves, springs, retainers and other valve-train
components will be permitted. Valves must be stock size and same basic material
as original equipment.
H. Aftermarket camshafts will be permitted, but cam lift and resulting
valve lift must be no greater than stock.
I. Stock cylinders and cases must be retained. Machining will be
permitted (same as current rules).
J. Aftermarket pistons, rings, pins and connecting rods will be permitted
(same as current rules).
K. Stock crankshaft must be retained. The only allowable modifications
are balancing, polishing of bearing surfaces and attachment of accessory drives.
L. Homologated transmission gear sets (one optional set of ratios per
approved model) will be permitted. Optional sets will be price-controlled and
must be available to any legitimate AMA Superbike competitor.
M. Aftermarket, stock-type (wet type cannot be changed to dry type)
clutches with back-torque limiting characteristics will be permitted.
N. Homologated fuel-injection throttle-body assemblies (one optional type
per approved model) and aftermarket air boxes will be permitted. Modifications
to throttle bodies will not be permitted. Optional throttle bodies will be
price-controlled and must be available to any legitimate AMA Superbike
competitor.
O. Aftermarket ignition systems will be permitted (same as current
rules).
P. Charging systems and starters will not be required (same as current
rules).
Q. Aftermarket exhaust systems will be permitted (same as current rules).
</p>
Only approved motorcycles are permitted in AMA Superbike competition.
AMA Pro Racing will accept homologation applications only from motorcycle
manufacturers or their distributors.
1. Allowable engine displacements and basic homologation requirements:
A. 551cc ? 750cc four-stroke, four cylinders:
Engines with displacements originally within this range may have cylinder bore
increased by a maximum of 2mm, with the resulting displacement not to exceed
800cc. Stroke must remain stock.
Homologation requirements will remain the same as current (2002) Superbike
requirements, including street certification in an FIM member country and a
minimum number of units imported into the US for sale.
B. 551cc ? 900cc four-stroke, three cylinders:
551cc ? 1000cc four-stroke, twin cylinders:
Homologation requirements will remain the same as current (2002) Superbike
requirements.
C. 901cc ? 1000cc four-stroke, three or more cylinders:
This is a new displacement category offered as an option beginning with the 2003
season.
Homologation requirements include street certification in the U.S. and a higher
minimum number of imported units relative to current Superbike requirements.
2. Weight:
Minimum weight for all superbikes will be increased to 370 pounds from the
current 355 pounds.
3. Other major technical regulations:
Except for the items previously noted, 750cc four cylinders, 900cc three
cylinders and 1000cc twin cylinders will be subject to all current (2002)
Superbike technical regulations for the 2003 season.
1000cc equipment with three or more cylinders will be subject to the following
major technical regulations:
A. Frames must be stock except for the addition of strengthening gussets
and the removal or relocation of accessory brackets (same as current rules).
B. Aftermarket forks, shocks and swingarms will be permitted.
Forks/shocks will be subject to claiming rules (same as current rules).
C. Aftermarket wheels (except carbon composite) will be permitted. Rear
wheel maximum width is 6.25" (same as current rules).
D. Aftermarket brakes (except carbon composite) will be permitted (same
as current rules).
E. Aftermarket fairings and body work will be permitted (same as current
rules).
F. Cylinder heads may be ported and machined, but altering of valve
angles will not be permitted.
G. Aftermarket valves, springs, retainers and other valve-train
components will be permitted. Valves must be stock size and same basic material
as original equipment.
H. Aftermarket camshafts will be permitted, but cam lift and resulting
valve lift must be no greater than stock.
I. Stock cylinders and cases must be retained. Machining will be
permitted (same as current rules).
J. Aftermarket pistons, rings, pins and connecting rods will be permitted
(same as current rules).
K. Stock crankshaft must be retained. The only allowable modifications
are balancing, polishing of bearing surfaces and attachment of accessory drives.
L. Homologated transmission gear sets (one optional set of ratios per
approved model) will be permitted. Optional sets will be price-controlled and
must be available to any legitimate AMA Superbike competitor.
M. Aftermarket, stock-type (wet type cannot be changed to dry type)
clutches with back-torque limiting characteristics will be permitted.
N. Homologated fuel-injection throttle-body assemblies (one optional type
per approved model) and aftermarket air boxes will be permitted. Modifications
to throttle bodies will not be permitted. Optional throttle bodies will be
price-controlled and must be available to any legitimate AMA Superbike
competitor.
O. Aftermarket ignition systems will be permitted (same as current
rules).
P. Charging systems and starters will not be required (same as current
rules).
Q. Aftermarket exhaust systems will be permitted (same as current rules).
</p>