On Mar 30, 9:07*am, wrote:
On Tue, 30 Mar 2010 07:10:22 -0700 (PDT), Tim
wrote:





There's an old saying at a local high performance engine shop that
says "Speed costs money, how fast do you want to go?" And I know the
old rule usually applies "you get what you pay for? Well for the few
times I've taken my marquis out it's interesting to get it up on
plane. first , if you ease the throttle, you'll do a wheelie to where
you think the boat will flip over backwards and you do little but plow
water , so you have to nail it and you still get an extreme bow rise
but it settles down and know you're going, but you still have to keep
the RPM up above 2800 or the boat wants to drag back. So I'm
investigating trim tabs. There's all kinds on the market anywhere from
sophisticated hydraulic and independently controlled units ranging up
to around $500.00 all the way down to the spring loaded sets that that
are available for around a hundred bucks. I'm sure that trim tabs
would help the boating experience, but *I'm really wondering how much
trim control I'm actually needing. to make a more efficient ride and
run. I'm constantly accused of being 'tight' but I'm not THAT tight,
because I know that money spent in the right direction will save in
fuel and ride in the longer run. But over kill is still overkill. This
is a 23 ft. V-hull Marquis with a 350 GM engine and not some 3000 hp.
40 ft. Fountain off shore racer. So, anyone have any suggestions?

I see a lot of boats in that class with a serious "squatting" and
shaking problem trying to get up on plane. They look like a poodle
pooping a peach pit.

Ma, that jsut about dedscribes it well.

It really screws them up in these skinny water bays and rivers. Have
you tried trimming the engine down more at the start?


Yes, I was wondering in the lower was all the way down myself so on
the trailer I lowered it and it goes as low as it can. so it's not
catching anywhere.

Bear in mind
trim tabs are only going to be effective after you get some speed up
so at the start they are not going to prevent the initial squat. Once
you get going it will bring the stern up faster. Motor trim starts
working right away.- Hide quoted text -

- Show quoted text -

I didn't know that, Greg. Thanks!