Obtaining maximum speed

EasybeeEasybee Posts: 22 ✭
in General Boating Discussions
2005 Rinker 342 Fiesta Vee,  what are some causes for not reaching maximum speed when the throttles are fully engaged? Has the engines serviced, had barnacles removed, the hull cleaned and painted, outdrives are in good condition. Any suggestion are appreciated.
Tagged:
· Share on Facebook

Comments

  • YYZRCYYZRC Posts: 5,437 ✭✭✭✭✭
    What’s your max RPM?

    If you are looking for more speed, most everyone on here will recommend the Hill Marine props, myself included. They give great stern lift. 
    2006 390 EC
    2008 350 EC
    Georgian Bay
    · Share on Facebook
  • aero3113aero3113 Posts: 9,798 ✭✭✭✭✭
    Bad fuel, incorrect prop pitch, worst case worn engine. Depending if the engines were fully serviced (plugs,wires,distributor cap/rotor,filters,flame arrestors cleaned, timing checked)
    2008 330EC
    · Share on Facebook
  • aero3113aero3113 Posts: 9,798 ✭✭✭✭✭
    Also, not trimming the drives and tabs correctly or something wrapped around the props.
    2008 330EC
    · Share on Facebook
  • Handymans342Handymans342 Posts: 10,375 ✭✭✭✭✭
    Or dirty bottom
    · Share on Facebook
  • aero3113aero3113 Posts: 9,798 ✭✭✭✭✭
    edited June 2021
    Handymans342 said:
    Or dirty bottom
    He already cleaned the bottom.
    2008 330EC
    · Share on Facebook
  • LaReaLaRea Posts: 8,068 mod
    At wide-open throttle, both engines should reach the same RPM.  If not, look for issues with the engine that has lower RPM.  Chafed spark plug wires, etc.
    · Share on Facebook
  • WillhoundWillhound Posts: 4,241 ✭✭✭✭✭
    And by maximum speed do you mean engine RPM or speed over water? I think the important question is are you getting max RPM's out of both engines.
    "Knot Quite Shore" - 2000 FV270 (Sold)
    2018 Cherokee 39RL Land Yacht (Sorry...)
    · Share on Facebook
Sign In or Register to comment.