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Modified Outboard

Gearhead's Rejoice!

MOD racers aren’t afraid to get their hands dirty – The goal in this category is to pull every last bit of horsepower out of your engine. In Modified Outboard, the engine builder’s skill is just as important as the driver's. These boats are easily recognizable by their specially tuned pipes that make them as loud as they are fast. Because engines are constantly being modified to make the absolute most of what the rules allow, the compeitiion is always feirce.  Join the ranks of some of the best engine builders in the world, join Modified Outboard Racing.

Classes

Whether hydroplane or runabout, Modified classes are defined by the size of their engines (displacement). The numbers in the class names give you the approximate engine size in cubic centimeters. The 250ccMH, or 250 cubic centimeter Mod Hydro, is smaller than the 850ccMH, or 850 cubic centimeter Mod Hydro. Some classes have minimum weights, which increase with engine size. The smaller classes are often a good fit for younger, lighter drivers (14-year-olds may drive 200-250cc Mod classes, for example). The larger classes take considerable skill and experience. Propellers of four blades or less are used, and your prop choice can affect your speed enormously.

200cc Modified Hydroplane
200cc Modified Runabout
250cc Modified Hydroplane
250cc Modified Runabout
350cc Modified Hydroplane
350cc Modified Runabout
400cc Modified Hydroplane
500cc Modified Hydroplane
500cc Modified Runabout
750cc Modified Hydroplane
750cc Modified Runabout
850cc Modified Hydroplane
850cc Modified Runabout

200cc Modified Hydroplane

200cc Modified Hydro (200ccMH), Also known as Formula A Hydro (FAH)

Modified Outboard Hydroplane Racing
Requirements
Minimum Age: 
14 years old
Engine: 
OMC, 13.2 Cubic Inches Maximum Displacement
Speed: 
55 - 60 MPH
Minimum Weight: 
345 lbs
Engine Block: 
13.2 cubic inches
Statistics
Competition Record: 
55.286 MPH
Straightaway Record: 
64.694 MPH
Previous Season National Champion: 
Andy Hansen

200cc Modified Runabout

200cc Modified Runabout (200ccMR), Also Known as Formula A, or FAR

Modified Runabout Racing
Requirements
Minimum Age: 
14 years old
Engine: 
OMC, 2 cylinider, 13.2 Cubic Inches Maximum Displacement
Speed: 
55 - 60 MPH
Minimum Weight: 
350 lbs.
Statistics
Competition Record: 
52.733 MPH
Straightaway Record: 
61.152 MPH
Previous Season National Champion: 
Andy Hansen

250cc Modified Hydroplane

250cc Modified Hydro (250ccMH), Also known a "A Mod" & AMH 

Displacment: 12.5 cubic inches up to 15 cubic inches. For Mark20H, (20 cubic inches Mercury engine with 1987 Stock Outboard specs)

MOD Outboard Racing
Requirements
Minimum Age: 
14 years old
Engine: 
Swanson/Champion or American Hot Rod,"A" Mercury KG4H and Mark 15, or "converted" Mark20H
Speed: 
60 - 65 MPH
Minimum Weight: 
365 lbs.
Statistics
Competition Record: 
61.183 MPH
Straightaway Record: 
66.805 MPH
Previous Season National Champion: 
Thomas Sutherland

250cc Modified Runabout

250cc Modified Runabout (250ccMR), Also known as "A Mod" or AMR

Displacement: Starting at 12.5 cubic inches up to 15 cubic inches. Mark20H (20 cubic inch Mercury engine with 1987 Stock Outboard specifications).

Modified Outboard Powerboat Racing
Requirements
Minimum Age: 
14 years old
Engine: 
Swanson/Champion or American Hot Rod,"A" Mercury KG4H and Mark 15, or "converted" Mark20H
Speed: 
60 - 65 MPH
Minimum Weight: 
unknown
Statistics
Competition Record: 
60.480 MPH
Straightaway Record: 
68.513 MPH
Previous Season National Champion: 
Brandon Boyd

350cc Modified Hydroplane

350cc Modified Hydro (350ccMH), also known as "B Mod" and BMH

Maximum engine displacement: Up to 20 cubic inches

APBA MOD Racing
Requirements
Minimum Age: 
16 years old
Engine: 
Swanson Champion or American Hot Rod "B", Yamato 80, Mercury MK20H, MK20, KG7
Speed: 
65 - 70 MPH
Minimum Weight: 
350 - 420 lbs.
Statistics
Competition Record: 
64.702 MPH
Straightaway Record: 
83.344 MPH
Previous Season National Champion: 
Daniel Koschka

350cc Modified Runabout

350cc Modified Runabout (350ccMR), Also known as "B Mod" or BMR


350cc Mod Runabout
Requirements
Minimum Age: 
16 years old
Engine: 
25XS Mercury - 20 cubic inches maximum engine displacement
Speed: 
55 - 60 MPH
Statistics
Competition Record: 
65.369 MPH
Straightaway Record: 
73.948 MPH
Previous Season National Champion: 
Jerry Davids Sr

400cc Modified Hydroplane

400cc Modified Hydro (400ccMH), Also known as "25 Mod"  & 25MH

APBA Modified Racing
Requirements
Minimum Age: 
16 years old
Engine: 
Mercury 25 SS or Mercury 22.0 Powerhead 1970 to date. OMC Powerhead 1970 to date
Speed: 
65 - 70 MPH
Minimum Weight: 
350 lbs.
Engine Block: 
22.0 cubic inches and 22.1 cubic inches
Statistics
Competition Record: 
61.350 MPH
Straightaway Record: 
75.587 MPH
Previous Season National Champion: 
Rick Miller

500cc Modified Hydroplane

500cc Modified Hydro (500ccMH), also known as "C Mod" and CMH

Engine Displacement: 15 cubic inches up to 20 cubic inches max


500 Mod Hydro
Requirements
Minimum Age: 
16 years old
Engine: 
Mark 30-H, Mark 30, Yamato 102, Wizard WA25 and Yamato 302F
Speed: 
70 - 75 MPH
Minimum Weight: 
440 lbs.
Statistics
Competition Record: 
72.307 MPH
Straightaway Record: 
87.397 MPH
Previous Season National Champion: 
Eric P Vanover

500cc Modified Runabout

500cc Modified Runabout (500ccMR), also known as "C Mod" and CMR

Engine Displacment: 20 cubic inches up to 30 cubic inches max

500 Mod Runabout
Requirements
Minimum Age: 
16 years old
Engine: 
Mark 30-H, Mark 30, Yamato 102, Wizard WA25 and Yamato 302F
Speed: 
70 - 75 MPH
Statistics
Competition Record: 
65.574 MPH
Straightaway Record: 
85.558 MPH
Previous Season National Champion: 
Eric P Vanover

750cc Modified Hydroplane

750cc Modified Runabout (750ccMR), also known as "D Mod" & DMH

Modified Outboard Racing
Requirements
Minimum Age: 
16 years old
Engine: 
30 c.i. up to and including 44 c.i. displacment, Mercury MK55H, and all 40 c.i. Mercury powerheads, all Mercury 44 c.i. 4 cylinder powerheads.
Speed: 
70 - 75 MPH
Minimum Weight: 
425 - 470 lbs.
Statistics
Competition Record: 
81.859 MPH
Straightaway Record: 
96.719 MPH
Previous Season National Champion: 
Brian Palmquist

750cc Modified Runabout

750cc Modified Runabout (750ccMR), Also known as "D Mod" and DMR

750 Mod Runabout
Requirements
Minimum Age: 
16 years old
Engine: 
Engine displacement of 30 c.i up to and including 44 c.i., Mercury MK55H, and all 40 c.i. Mercury powerheads, all Mercury 44 c.i. 4 cylinder powerheads.
Minimum Weight: 
425 - 470 lbs.
Statistics
Competition Record: 
68.619 MPH
Straightaway Record: 
89.144 MPH
Previous Season National Champion: 
Jerry Davids Sr

850cc Modified Hydroplane

850cc Modified Hydro (850ccMH), Also known as Formula E, or FEH


Engines:

40 cubic inches up to 49 c.i. manufactured as a service engine and associated carburetors. Exceptions are the Mercury MK75 6 cylinder, Mercury 650 xs, and Mercury 4 cylinder 62 c.i.

60 and 62 cubic inch 4 cylinder 650s are allowed.

 

Modified Hydro Racing
Requirements
Minimum Age: 
18 years old
Speed: 
90 - 100 MPH
Statistics
Competition Record: 
86.547 MPH
Straightaway Record: 
104.459 MPH
Previous Season National Champion: 
Eric P Vanover

850cc Modified Runabout

850cc Modified Runabout (850ccMR), also known as "Formula E" or FER are the biggest, most powerful Modified Runabout class. Look for heart-stopping noise and amazing speed when the 850 Runabouts hit the water.

 

 

850 Mod Runabout
Requirements
Minimum Age: 
18 years old
Engine: 
40 cubic inches up to 49 c.i. manufactured as a service engine and associated carburetors. Exceptions are the Mercury MK75 6 cylinder, Mercury 650 xs, and Mercury 4 cylinder 62 c.i. 60 and 62 cubic inch 4 cylinder 650's are allowed.
Speed: 
90 - 100 MPH
Statistics
Competition Record: 
70.933 MPH
Straightaway Record: 
91.905 MPH
Previous Season National Champion: 
Jerry Davids Sr