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Well racers...we finally have all the rules together for the new class coming up! We will have a complete setup on display at Grass Lake...I am buying the first motor, Jeff Brewster is providing the boat (a really fast Furnel) and Vic Brinkman is getting us a spec prop. I will be testing the boat, hopefully on Monday....time to get rolling with this!
302 Super Stock Hydro (302SSH)
The general safety and racing rules / Stock Outboard racing and safety rules shall prevail in all situations not specifically covered in the following rules.
Intent: To have what could be our first ever “Stock” outboard class in APBA racing. This class shall lower barriers to entry, have very low start up costs and provide a place for new members to hone their racing skills before making a transition into the faster classes. It will also offer a class to current drivers that no longer wish to race at higher speeds.
Governing of class rules: Each year the Stock Outboard Chairman may appoint up to four members to join the Chair on the 302 Super Stock Committee. This committee will act as an advisory board to the SORC to keep the original intent of the class moving forward.
Hulls: Most current 20SSH, 25SSH or CSH type of boats should meet the specifications below:
a. After plane length shall not be less that 69”. (measured from the trailing edge of the sponsons to the trailing edge of the bottom)
b. A minimum depth measurement of 2” between the bottom of the hull and the bottom of the sponson at the trailing edge of the sponson.
c. A minimum bottom width of the hull measured between the sponsons and air traps of 35”.
d. A minimum overall boat length not to be less than 9’ 10”
The driver has the option to purchase a used hull, build one or buy a new one from recognized boat builders.
Engines: The Model 302 Yamato engine must be purchased from Ric Montoya of RPM Marine for a base price of $2660.00 + shipping. Before shipping or buyer pickup, Ric will ensure the following:
a. The following seals are in place:
i. Intake to crankcase
ii. Crankcase to block
iii. Block to exhaust port cover
b. All EPA paperwork has been completed.
c. An operational kill switch plug has been installed.
d. New piston rings have been installed.
e. The exhaust housing has been flattened.
f. The gear foot meets all 302SSH measurements with the stock 16mm prop shaft.
g. A 302SSH two blade propeller is provided.
Engine Specifications: All current model 302 specifications for the CSH and CSR classes apply except for:
a. The 14mm cylinder head must meet a minimum thickness dimension of 1.440”
b. Aftermarket steering bars and thrust brackets are permitted.
c. The fuel tank must remain stock. No fuel pumps permitted.
d. Gear foot minimum measurements. See the Stock Outboard Technical manual for the 302 Yamato engine gear foot diagrams:
W = 2.245 min.
Z1 = 0.200 min.
Z2 = 0.195 min.
Z3 = 0.155 min.
Z4 = 0.160 min.
Bulge thickness = 0.225 min.
Skeg radius (leading and trailing) = 7/64 min.
Nose cone leading radius = 7/16 min.
Top of gear foot leading radius (above nose cone) = 7/64 min.
Top of gear foot trailing radius (above cone nut) = 17/64 min.
Weight: Total as raced will be a minimum of 440 lbs.
Age: Minimum is 16 years with no maximum.
Speed: It is the intent of this class to have a maximum speed of 60 mph. If the class exceeds this speed, restrictions will be set to reduce the speed as needed.
Propshaft depth: The class will have a limitation on where the engine’s propshaft may be mounted. The propshaft location shall be the distance between the center of the propshaft at its aft end, and the planing surface. The measurement of the engine height shall be “as raced” with the engine turned straight (propshaft in-line with the fore-aft centerline of the boat). This rule does apply to boats running in straightaway trials. The prop shaft depth will be not less than 1 3/8” below the planing surface as explained above.
Propellers: All entries will race the 302 Super Stock propellers provided with the engines. An engine owner only owns the rights to “a” propeller and not a specific propeller. At driver’s meeting the day of the race all propellers from the entries in the class will be turned in to the race inspector (or a person designated by the inspector). The race inspector (or designee) will place one propeller each in a bag or box to conceal it. A driver will then pull a number from a hat that corresponds with the number on the box or bag. This will also occur in inspection after the first heat of racing has been completed.
Repair Centers: The following gentlemen have accepted the responsibility of being an authorized repair center for the class:
- East Jerry Davids Sr.
- Midwest Tom Johnston
- Northwest Ric Montoya
- Southwest Roger Carr
There will be only four authorized centers and the centers will be appointed each year by the Stock Outboard Chairman. They will provide all internal mechanical repair and refresh for the sealed portions of the engine. The estimated cost for a refresh is $250.00 plus shipping. A repair center may also inspect a previously raced 302 engine and detune the engine to make it legal for this class. Those costs will be determined by the repair center. Once their work is completed, they will re-seal the engine and therefore approve it for racing.
National High Points: All Stock Outboard rules apply except that only three entries are required to receive national points.
Records: All Stock Outboard records will be approved for the class. All straightaway records will be in the competition set up. Those drivers setting the first record will not receive APBA Hall of Champion points.
Once approved, all rules stated above will be added to the 2013 Stock Outboard Technical Manual, Safety Rules & Racing Rules.
Respectfully submitted by,
Jeff Brewster
Stock Outboard Chairman
April 30, 2012
(All rules have been approved by an affirmative vote of the APBA Board of Directors)
302 Super Stock Hydro (302SSH)
The general safety and racing rules / Stock Outboard racing and safety rules shall prevail in all situations not specifically covered in the following rules.
Intent: To have what could be our first ever “Stock” outboard class in APBA racing. This class shall lower barriers to entry, have very low start up costs and provide a place for new members to hone their racing skills before making a transition into the faster classes. It will also offer a class to current drivers that no longer wish to race at higher speeds.
Governing of class rules: Each year the Stock Outboard Chairman may appoint up to four members to join the Chair on the 302 Super Stock Committee. This committee will act as an advisory board to the SORC to keep the original intent of the class moving forward.
Hulls: Most current 20SSH, 25SSH or CSH type of boats should meet the specifications below:
a. After plane length shall not be less that 69”. (measured from the trailing edge of the sponsons to the trailing edge of the bottom)
b. A minimum depth measurement of 2” between the bottom of the hull and the bottom of the sponson at the trailing edge of the sponson.
c. A minimum bottom width of the hull measured between the sponsons and air traps of 35”.
d. A minimum overall boat length not to be less than 9’ 10”
The driver has the option to purchase a used hull, build one or buy a new one from recognized boat builders.
Engines: The Model 302 Yamato engine must be purchased from Ric Montoya of RPM Marine for a base price of $2660.00 + shipping. Before shipping or buyer pickup, Ric will ensure the following:
a. The following seals are in place:
i. Intake to crankcase
ii. Crankcase to block
iii. Block to exhaust port cover
b. All EPA paperwork has been completed.
c. An operational kill switch plug has been installed.
d. New piston rings have been installed.
e. The exhaust housing has been flattened.
f. The gear foot meets all 302SSH measurements with the stock 16mm prop shaft.
g. A 302SSH two blade propeller is provided.
Engine Specifications: All current model 302 specifications for the CSH and CSR classes apply except for:
a. The 14mm cylinder head must meet a minimum thickness dimension of 1.440”
b. Aftermarket steering bars and thrust brackets are permitted.
c. The fuel tank must remain stock. No fuel pumps permitted.
d. Gear foot minimum measurements. See the Stock Outboard Technical manual for the 302 Yamato engine gear foot diagrams:
W = 2.245 min.
Z1 = 0.200 min.
Z2 = 0.195 min.
Z3 = 0.155 min.
Z4 = 0.160 min.
Bulge thickness = 0.225 min.
Skeg radius (leading and trailing) = 7/64 min.
Nose cone leading radius = 7/16 min.
Top of gear foot leading radius (above nose cone) = 7/64 min.
Top of gear foot trailing radius (above cone nut) = 17/64 min.
Weight: Total as raced will be a minimum of 440 lbs.
Age: Minimum is 16 years with no maximum.
Speed: It is the intent of this class to have a maximum speed of 60 mph. If the class exceeds this speed, restrictions will be set to reduce the speed as needed.
Propshaft depth: The class will have a limitation on where the engine’s propshaft may be mounted. The propshaft location shall be the distance between the center of the propshaft at its aft end, and the planing surface. The measurement of the engine height shall be “as raced” with the engine turned straight (propshaft in-line with the fore-aft centerline of the boat). This rule does apply to boats running in straightaway trials. The prop shaft depth will be not less than 1 3/8” below the planing surface as explained above.
Propellers: All entries will race the 302 Super Stock propellers provided with the engines. An engine owner only owns the rights to “a” propeller and not a specific propeller. At driver’s meeting the day of the race all propellers from the entries in the class will be turned in to the race inspector (or a person designated by the inspector). The race inspector (or designee) will place one propeller each in a bag or box to conceal it. A driver will then pull a number from a hat that corresponds with the number on the box or bag. This will also occur in inspection after the first heat of racing has been completed.
Repair Centers: The following gentlemen have accepted the responsibility of being an authorized repair center for the class:
- East Jerry Davids Sr.
- Midwest Tom Johnston
- Northwest Ric Montoya
- Southwest Roger Carr
There will be only four authorized centers and the centers will be appointed each year by the Stock Outboard Chairman. They will provide all internal mechanical repair and refresh for the sealed portions of the engine. The estimated cost for a refresh is $250.00 plus shipping. A repair center may also inspect a previously raced 302 engine and detune the engine to make it legal for this class. Those costs will be determined by the repair center. Once their work is completed, they will re-seal the engine and therefore approve it for racing.
National High Points: All Stock Outboard rules apply except that only three entries are required to receive national points.
Records: All Stock Outboard records will be approved for the class. All straightaway records will be in the competition set up. Those drivers setting the first record will not receive APBA Hall of Champion points.
Once approved, all rules stated above will be added to the 2013 Stock Outboard Technical Manual, Safety Rules & Racing Rules.
Respectfully submitted by,
Jeff Brewster
Stock Outboard Chairman
April 30, 2012
(All rules have been approved by an affirmative vote of the APBA Board of Directors)
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