Weekend Schedule:

No Events Scheduled
mobile menu
expand
Modified Outboard Menu

500CC Modified Hydroplane

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

500CC Modified Hydroplane Specifications

Minimum Length:
Minimum Weight:440 lbs.
Engine:Mark 30-H, Mark 30, Yamato 102, Wizard WA25 and Yamato 302F
Fuel:
Approximate Speed:70-75mph

500CC Modified Hydroplane High Point Winners

YearDriver/OwnerRacesPoints
2018AUSTIN VANOVER114830
2017J MICHAEL KELLY104350
2016ERIC P VANOVER124569
2015ERIC P VANOVER125605

500CC Modified Hydroplane National Champions

YearDriver/Owner
2021J MICHAEL KELLY
2019AUSTIN VANOVER
2017J MICHAEL KELLY
2016RICK MILLER
2015ANDREW TATE
2014J MICHAEL KELLY
2013DANIEL KOSCHKA
2012RICK MILLER
2011DANIEL KOSCHKA
2010BRIAN PALMQUIST
2009BRIAN PALMQUIST
2008SCOTT CLARK

500CC Modified Hydroplane Records

RecordSiteDriver/OwnerSpeed
3 mile/3 laps
APBA
Sep 26, 2010
Yelm, WA
John Maroney
John Maroney
66.482
3 mile/4 laps
APBA
Mar 26, 2006
Pineville, LA
Brian Palmquist
Brian Palmquist
62.316
5 mile/3 laps
APBA
Apr 27, 2013
Yelm, WA
John Maroney
John Maroney
72.307
5 mile/4 laps
APBA
Sep 20, 2014
Yelm, WA
J. Michael Kelly
Dean Hobart
68.729
5 mile/4 laps
APBA
Apr 27, 2019
Yelm, WA
J. Michael Kelly
Dean Hobart
70.381
Kilo
APBA
Sep 23, 2018
Lincoln City, OR
John Peeters
Rich Fuchslin
92.818
1/4 mile
APBA
Sep 22, 2018
Lincoln City, OR
John Peeters
Rich Fuchslin
91.556