tilt & trim

[dlarsen_1999]

I have a 91 Sea Rea 270 Sundancer with a single 454 Mercruiser. The issue that I have is once one plain, the boat is extremely sensitive back and forth. Adjusting the trim tabs helps but if anyone moves around or I need to make a turn, the boat will either dive into the turn or stay straight and just "bow over".
My question is... is this normal? Each time I need to adjust the trim tabs I "bump" bow up or down to level off then wait a moment or two. I am constantly adjusting trim for all turns, wave's any movement in the boat.
Should be using the "tilt" (trailering mode for outdrive) adjust a bit as well in conjunction with the trim tabs? Any help/suggestions would greatley help.

 

[CoralReefer]

I've seen several threads on this. I've always run outdrive all the way down and just used the tabs. I never use the trim.

 

[Alibuma]

What you describe (always making adjustments) is consistent with how my boat handles as well. I am currious if we're doing something wrong. I have seen the auto trim tab control unit which will adjust the tabs for you based on a baseline setting but the unit is a bit cost prohibitive for me right now. I usually cruise with my trim (not tilt) about half way up (so that would be 1/4 way up on the trim/tilt gauge). I am currious what others write back with.

 

[JerryS]

I have a 91 Sea Rea 270 Sundancer with a single 454 Mercruiser. The issue that I have is once one plain, the boat is extremely sensitive back and forth.

These old 270's run bow proud due to their design, so, yes they don't turn well and are sensitive to weight changes. I usually put my outdrive at about 3/8 which is just short of causing cavitation. I make sweeping turns rather than trying to force it to do something that it can not do. Using the trim tabs does help to make a turn. You give up handling when you buy a small boat that has a large cabin area compared to the cockpit area. Look at the picture below, I'm problably running at 28-29, but, the boat is sitting down on it's honches.

 

[dlarsen_1999]

Thanks for the inputs! As alway's, any help / suggestions are always appreciated!