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ContinuousWave: Whaler Performance
After new bracket - how fix too much bow lift?
|Author||Topic: After new bracket - how fix too much bow lift?|
posted 07-09-2002 02:53 PM ET (US)
I put a CMC power tilt/trim bracket on my 13' sport. I did not raise the short shaft 40 hp johnson. Until I get her on plane, I have significantly more bow lift. Should I look for a stern lift prop? Any ideas?
posted 07-09-2002 03:12 PM ET (US)
Nope...won't do any good. The only way to lower bowrise on takeoff is to decrease trim angle.
posted 07-17-2002 10:34 PM ET (US)
Too much bow lift and/or porpoising is a sympotom of a motor mounted too deep. The added setback of the bracket has effectively lowered the motor, because the water stream curls up after passing the transom. To make your motor perform as before, you have to raise the mounting position. Using a setback bracket is a common racing strategy to allow mounting the motor higher for more speed and less drag.
If you can raise the mounting a few inches, your problem should go away.
posted 07-17-2002 11:02 PM ET (US)
I have a 4" setback bracket. bsmotril, your comments parallel my own observations. Nice web page btw.
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