Ron Hill
12-24-2006, 12:28 PM
VP/E CLASS (revision to VP75 Class) Revised w/Exp.
Boats must be molded "V"-bottoms (APBA 2’X4’ Rule) 11/29/06
13’ minimum length. Reason : Plenty of old/cheap High-Pref. Boats around.
Boats with less than 20 inches of molded depth, at the drivers seat (external keel to top of cockpit combing) must have a parabolic roll bar installed, reaching six inches over the drivers head and supported by two rear braces to the transom or floor. Re.: Need driver protection from side impact.
Driver’s seat must not exceed 36" aft of midships (APBA Rule #__?__)
Re.: Driver’s weight could make boat out of balance.
Steering must be mechanical (push-pull through tilt tube type).
Re.: Cables and pulleys are too complicated for beginners.
Engines must be stock production and mass marketed CLASS E (49.99cu. in. total piston displacement). Re.: There are a ton of these old but reliable 3cyls. around, cheap enough that the seller might just throw in a boat and trailer.
Engines must be mounted such that when trimmed parallel to running surface,
the centerline of the propeller shaft is located five inches below the running
surface. Re.: Keeps the rig in control in the straights and gives the motor enough bow lift to keep from spinning in the turns.
Power trim is not allowed, engines w/P/T must have P/T disconnected
electrically, in addition all engines must be tied down to prevent kick-up.
. Re.: Too much time on the down button, by a rocky could mean a ground loop in a turn; and P/T increases the cost Aprox. $500
.Thrust jacks and upper mount snubbers are allowed. Re.: Improves stability.
Engine Modifications:
A. Tilt switches, oil injection and rev limiters may be rendered inoperative.
B. Two 1"diameter holes that can be readily plugged (for testing and water skiing) may be drilled in the lower unit above the cavitation plate.
C. Cosmetic appearance may be changed. Re. : Many motors have already been painted other colors by previous owners.
D. Hydro-electric lower units may have the oil pump removed for forward-only operation. Re.: Oil pump steals HP.
Minimum weight of complete rig with driver is 900#. These are estimates.
A. Boat 400# Re.: Old but heavy High-Pref. Boats.
B. Motor 180#
C. Driver 200# Re.: We are not getting any lighter.
D. Roll bar 20#
E. Rigging 90# Note : Boats w/ engines less that 45cid.- Exempt
F. Fuel 21#
911#
10. Any through hub exhaust propeller.
Drivers must be at least 16 years of age.
Looking for a boat: Ideally you want a 13-15’ High Performance fiberglass runabout built 10-30 years ago.
HydroStream: Vixen, Vandal, Viper, GW Invader: 13, 15, Allison: 13, 14, 15, Vampire: 15, Pace Craft: 13, 15, Osborn, Chritchfield, Baha 14, Rapid Craft, Lee Craft. These are out of print mainly because people don’t want to pay money to go half fast anymore, so you will have to dig.
Motors are another story: You want a 70 or 75 Evinrude/Johnson 3 Cylinder long shaft w/o power trim (tilt is ok) with two control cables coming out of the lower right side of the cowl. The best source is complete rigs, which are everywhere for in the neighborhood of $3-500. You rob the controls and steering from the boat sell the trailer for what you have in the whole rig and I’ll find the number of a guy who will come and get the boat for $20 +/-?
Related Link: http://www.boatracingfacts.com/forums/showthread.php?t=3490
Boats must be molded "V"-bottoms (APBA 2’X4’ Rule) 11/29/06
13’ minimum length. Reason : Plenty of old/cheap High-Pref. Boats around.
Boats with less than 20 inches of molded depth, at the drivers seat (external keel to top of cockpit combing) must have a parabolic roll bar installed, reaching six inches over the drivers head and supported by two rear braces to the transom or floor. Re.: Need driver protection from side impact.
Driver’s seat must not exceed 36" aft of midships (APBA Rule #__?__)
Re.: Driver’s weight could make boat out of balance.
Steering must be mechanical (push-pull through tilt tube type).
Re.: Cables and pulleys are too complicated for beginners.
Engines must be stock production and mass marketed CLASS E (49.99cu. in. total piston displacement). Re.: There are a ton of these old but reliable 3cyls. around, cheap enough that the seller might just throw in a boat and trailer.
Engines must be mounted such that when trimmed parallel to running surface,
the centerline of the propeller shaft is located five inches below the running
surface. Re.: Keeps the rig in control in the straights and gives the motor enough bow lift to keep from spinning in the turns.
Power trim is not allowed, engines w/P/T must have P/T disconnected
electrically, in addition all engines must be tied down to prevent kick-up.
. Re.: Too much time on the down button, by a rocky could mean a ground loop in a turn; and P/T increases the cost Aprox. $500
.Thrust jacks and upper mount snubbers are allowed. Re.: Improves stability.
Engine Modifications:
A. Tilt switches, oil injection and rev limiters may be rendered inoperative.
B. Two 1"diameter holes that can be readily plugged (for testing and water skiing) may be drilled in the lower unit above the cavitation plate.
C. Cosmetic appearance may be changed. Re. : Many motors have already been painted other colors by previous owners.
D. Hydro-electric lower units may have the oil pump removed for forward-only operation. Re.: Oil pump steals HP.
Minimum weight of complete rig with driver is 900#. These are estimates.
A. Boat 400# Re.: Old but heavy High-Pref. Boats.
B. Motor 180#
C. Driver 200# Re.: We are not getting any lighter.
D. Roll bar 20#
E. Rigging 90# Note : Boats w/ engines less that 45cid.- Exempt
F. Fuel 21#
911#
10. Any through hub exhaust propeller.
Drivers must be at least 16 years of age.
Looking for a boat: Ideally you want a 13-15’ High Performance fiberglass runabout built 10-30 years ago.
HydroStream: Vixen, Vandal, Viper, GW Invader: 13, 15, Allison: 13, 14, 15, Vampire: 15, Pace Craft: 13, 15, Osborn, Chritchfield, Baha 14, Rapid Craft, Lee Craft. These are out of print mainly because people don’t want to pay money to go half fast anymore, so you will have to dig.
Motors are another story: You want a 70 or 75 Evinrude/Johnson 3 Cylinder long shaft w/o power trim (tilt is ok) with two control cables coming out of the lower right side of the cowl. The best source is complete rigs, which are everywhere for in the neighborhood of $3-500. You rob the controls and steering from the boat sell the trailer for what you have in the whole rig and I’ll find the number of a guy who will come and get the boat for $20 +/-?
Related Link: http://www.boatracingfacts.com/forums/showthread.php?t=3490