TRS GEAR RATIO "Which would be the best ratio for 540 HP engine.)
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![Angry](/forums/images/icons/icon8.gif)
Hi I own a formula 311 1987 with Trs Drives and Borg W Transsmisions and i have upgraded my engines to 540 HP.s but only getting 69. MPH out of the boat with my previews 420 engines I was getting 57 MPH so I am starting to think they maybe something wrong with the gear ratio of my boat the 69 MPH speed was achived testing with 25 P Mirage blades at 4900 RPM,s and should go up to 52,00 any suggestions I feel something is not workiing correctly or substracting power from the end formula.
Any suggestions
Any suggestions
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saulesses
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06-13-2007 09:12 PM