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  #1  
Old 07-07-2014, 12:19 PM
dhanni848 dhanni848 is offline
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Boat: 1989 Mastercraft Tri Star 220
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88 Tristar 220 plane

Hi all,

I am new to inboards so learning as I go. When driving at cruise speed it seams like the boat never planes out. I am typically at 3000-3200 rpms, and I have ran it up higher to try but it never seems like it does.

Is this a prop adjustment or anything else that i can adjust? I have to sit on the seat back to see over the bow! I typically sit on my knee.

Thanks in advance!
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  #2  
Old 07-07-2014, 12:37 PM
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etduc etduc is online now
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There's no adjustment. When your rpm is in the, 3000-3200 range..what does you speedometer read?
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Old 07-07-2014, 05:13 PM
dhanni848 dhanni848 is offline
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I have 2 speedometers and neither are working. I haven't had time to hash that issue out yet. I do not have the pickups in the rear of the boat so that was another project.
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  #4  
Old 07-07-2014, 06:46 PM
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drschemel drschemel is offline
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I think a tristar 220 is a 190 with an extra 2 feet of bow. That's a lot of bow to see over. An inboard does not plane out like an outboard will. The bow always stays high so it's probably doing about what it should. I put the square throwable boat seat on the driver seat to sit up a little higher. A lot of people just sit on the back of the seat.
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Old 07-07-2014, 07:11 PM
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madcityskier madcityskier is offline
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Might work with your weight distribution (even add some ballast in the bow) and maybe even add a trim tab to bring it down. If there's anything stored under the back seats, move it under the bow. Generally there will be a range of speeds where this is an issue. Try bumping the speed up a little. As for the speedos, there are many good gps based speed apps for most smart phones. Give one of those a shot.

When the back of the seat is higher than the side of the boat I would avoid sitting on top of it. A friend of the family was riding in a similar fashion (albeit at high speed), when he hit a large wake and was tossed from the boat. Not a pleasant way to die. Not trying to start something, but stacked cushions should get you there in a more stable fashion.
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  #6  
Old 07-08-2014, 08:39 AM
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homer12 homer12 is online now
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Have someone take a picture from the dock of what it looks like or get a smartphone speed app like madcityskier suggested. I consider my Tristar 190 on plane below 2000rpm. Maybe you are having a power issue
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Old 07-08-2014, 10:27 AM
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Quote:
Originally Posted by dhanni848 View Post
I have 2 speedometers and neither are working. I haven't had time to hash that issue out yet. I do not have the pickups in the rear of the boat so that was another project.
Download a free gps speedometer. At 3000 rpm, you should be around 30 mph, if you have the standard prop.

I owned a Tristar 190, for a time. The 220 does have a longer nose.
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Old 07-08-2014, 04:56 PM
dhanni848 dhanni848 is offline
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thank you all for the replies. All of that makes sense. The power feels good and definitely doesn't feel like it is struggling. It is the factory style prop as far as I am aware of, and I do no feel a difference between 2000-4000 so I bet it is on plane. Just lived on an inbourd/outboard my entire life.

I downloaded a few apps a while back, but have been scared to get the phone wet. I will try it out this weekend.
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Old 07-08-2014, 05:21 PM
dhanni848 dhanni848 is offline
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Question for the speedos while we have that topic mentioned. I do not have the normal pickups on the back of the boat to the left and right of the exhaust. I have 2 small fins under the boat, would that be the pickups?
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  #10  
Old 07-09-2014, 10:34 AM
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Quote:
Originally Posted by dhanni848 View Post
Question for the speedos while we have that topic mentioned. I do not have the normal pickups on the back of the boat to the left and right of the exhaust. I have 2 small fins under the boat, would that be the pickups?
Take a picture.
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