WKA BRIDGESTONE MANUFACTURERS CUP SERIES

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2017 SCHEDULE

   Daytona International Speedway | Daytona Beach, FL
December 28-30, 2016

Pittsburg Int'l Race Complex | Wampum, PA
May 19-21, 2017
New Castle Motorsports Park | New Castle, IN
July 14-16, 2017

Briggs and Stratton Raceway Park | Dousman, WI
August 25-27, 2017

GRAND NATIONAL
GoPro Motorplex | Mooresville, NC
October 13-15, 2017


CURRENT POINT STANDINGS

CURRENT CHASSIS POINT STANDINGS


CLASS STRUCTURE

 

214.1 - KID KARTS

DRIVER REQ: Attained age of 5 through 7
ENGINE: Comer C51 only. (See Section 621)
FUEL: Spec Fuel. 87 octane spec fuel tickets sold at WKA trailer for Kid Kart class.  
MINIMUM WEIGHT: 150 lbs.
TIRES: Bridgestone YLC – 10 x 4.50 - 5. 33” max circumference. GEAR RATIO: 10/89
OTHER: (1) See Section 900 for chassis and bodywork specifications (2) Laps in race and track configuration may be adjusted by Race Director: (3) Class runs on same tires both days. (4) New tires not required.
 


214.2 - MINI SWIFT

DRIVER REQ: Attained age of 7 through 10.
ENGINE: Parilla Swift with restricted exhaust header see Section 625/625.13
EXHAUST: Must be stock pipe and exhaust header as supplied by manufacturer. (with restricted header)
CARBURETOR: Tillotson HW-31A
FUEL: Spec Fuel.
KART: Cadet or standard kart chassis allowed.
MINIMUM WEIGHT: 225 lbs.
SPEC TIRE: Bridgestone YLC – 10 x 4.50 - 5 front and rear.
OTHER: Class runs on same tires both days; new set required at qualifying round on day one. National point champion must move out of class for following years competition.  


214.3 - YAMAHA SPORTSMAN

DRIVER REQ: Attained age 7 through 12.
ENGINE: Yamaha, Only heads with OEM casting “Yamaha” and cylinders with Y3 or Y4 and 787 are legal
EXHAUST: RLV SSX-V #7548. (See Section 554.3 and Figure 554.3) 
CARBURETOR: Walbro WA55B with WA55B manifold (See Sections 601.6 and 601.7).
FUEL: Spec Fuel.
KART: Cadet or standard kart chassis allowed.
MINIMUM WEIGHTS:  235 lbs.
SPEC TIRE: Bridgestone YLC – 10 x 4.50 - 5 Front and rear.
OTHER: (1) Gear Ratio 5.30 Min., NO Max. (2) No axle clutches. (3) Class runs on same tires both days; new set required at qualifying round. 

 
214.4 - PRO SWIFT SPORTSMAN

DRIVER REQ: Attained age 8 through 12.
ENGINE: Parilla Swift
EXHAUST: Must be stock pipe and exhaust header as supplied by manufacturer. 
CARBURETOR: Tillotson HW-31A
FUEL: Spec Fuel.
KART: Cadet or standard kart chassis allowed.
MINIMUM WEIGHTS:  245 lbs.
SPEC TIRE: Bridgestone YLC – 10 x 4.50 - 5 Front and rear.
OTHER: (1) Gear Ratio 5.30 Min., NO Max. (2) No axle clutches. (3) Class runs on same tires both days; new set required at qualifying round. 

 
214.5 - YAMAHA JUNIOR

DRIVER REQ: Attained age 12 through 15
ENGINE: Yamaha KT100. Only heads with OEM casting “Yamaha” and cylinders with Y3 or Y4 and 787 are legal.
FUEL: Spec Fuel. 
MINIMUM WEIGHTS: 310 lbs.
EXHAUST: RLV SSX-V #7548. (See Section 554.3 and Figure. 554.3) 
SPEC TIRES:  Bridgestone YLC – 10 x 4.50-5 front, 11 x 6.00-5 rear.
OTHER: (1) No axle clutches. (2) One new set of tires required each day for qualifying

 
214.6 - PRO IAME JUNIOR

DRIVER REQ: Attained age 12 through 15. 
ENGINES: IAME Parilla Leopard or IAME X30
MINIMUM WEIGHTS: 320 lbs.
FUEL: Spec Fuel
EXHAUST PIPE/SILENCER: Must be stock pipe and restricted exhaust header as supplied by manufacturer for each specific engine. Parilla Leopard requires 25mm header. Parilla X30 requires 29mm header.
X30 = 16 ¾” --- Leopard = 15 ¾” --- as measured from the back side of the header flange around the right side of the header, connector, and pipe to the first weld at the end of the divergent cone. Pipe to be measured on the kart as raced. See Figure 609.1
SPEC TIRE: Bridgestone YLM – 10 x 4.50 - 5 front, 11 x 7.10 - 5 rear
AIRBOX: Required. See Section 551.
OTHER: (1) In the event that the engine cannot be started on the grid with the onboard starter, an auxiliary starter may be used. In any case, the onboard starter is subject to post race tech inspection to ensure that all components are present and correctly installed. (2) One new set of tires required each day for qualifying.


214.7 - YAMAHA SENIOR

DRIVER REQ: Attained age 15 and older. 
ENGINES: Yamaha KT100. Only heads with OEM casting “Yamaha” and cylinders with Y3 or Y4 and 787 are legal.
FUEL: Spec Fuel. 
MINIMUM WEIGHT: 340 lbs.
EXHAUST: RLV SSX-V #7548. (See Section 554.3 and Figure. 554.3) 
SPEC TIRE:  Bridgestone YLC – 10 x 4.50 - 5 front, 11 x 7.10 - 5 rear.
OTHER: (1) No axle clutches. (2) One new set of tires required each day for qualifying.


214.8 - PRO IAME SENIOR

DRIVER REQ: Attained age 15 and older. 
ENGINES: IAME X30 and Parilla Leopard
MINIMUM WEIGHTS: 360 lbs.
FUEL: Spec Fuel
EXHAUST PIPE/SILENCER: Must be stock pipe and exhaust header as supplied by manufacturer. The minimum combined length: 
X30 = 16 ¾” --- Leopard = 15 ¾” --- as measured from the back side of the header flange around the right side of the header, connector, and pipe to the first weld at the end of the divergent cone. Pipe to be measured on the kart as raced. See Figure 609.1
CARBURETOR: As factory supplied. See Figure 610
SPEC TIRE: Bridgestone YLM – 10 x 4.50 - 5 front, 11 x 7.10 - 5 rear
AIRBOX: Required. See Section 551.
OTHER: (1) In the event that the engine cannot be started on the grid with the onboard starter, an auxiliary starter may be used. In any case, the onboard starter is subject to post race tech inspection to ensure that all components are present and correctly installed. (2) One new set of tires required each day for qualifying.