prop probs 175 evin

Benny1963

Lieutenant
Joined
Sep 17, 2006
Messages
1,476
ran my boat today ran 5200 rpm no gps speed today
boat responds to trim but cant get enough trim due to porping
14 1/4 x 21 no cupping older prop motor is tuned and running great
it stainless , on a 17ft mckee hull its dry and mint condition.
do i need to run some smart tabs and try to trim up to 5800
or drop pitch to get rpm or go to a better prop at 19 p and run smart tabs
cant get the pporping to go away above 4900 so i cant trim it up
any thoughts thanks
 
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