View Full Version : 1990 Sweet 16 Top Speed

07-02-2014, 02:19 PM
Just bought a 90 Sweet 16. It was a two owner boat and very well maintained. Replaced the original fuel pump with an electronic unit as the original was failing. Being my first Donzi I was wondering what this boat should do top end. I have only been able to hit 47.5 gps. Granted that was in a bit of chop 1 1/2 ft waves but I would think this boat would have a little more top end. It only has the 4.3 but still, trimmed out to the max I'm surprised it isn't a 50 - 55 mph boat. Any advice?

07-02-2014, 02:36 PM
Figured I would include a couple quick pics as well after asking the questions.

Carl C
07-02-2014, 03:38 PM
Nice boat. Welcome to the Donzi Registry! I think maybe the bimini is holding you back. ;)

07-02-2014, 05:01 PM
I had the bimini off, 1/4 tank of fuel and just myself in the boat. I'm thinking the chop may have prevented me from getting over 50. Not sure. I feel like I got a good deal on the boat though, $5600 with the trailer. I'm very surprised how it handles rough water. The trim tabs are a lifesaver but having never had a quality boat it REALLY makes a difference. I fear I'm hooked on Donzi's.

Carl C
07-02-2014, 07:03 PM
JK about the bimini. There are plenty of folks here with experience with the 16s and they will chime in when they see this.

Just Say N20
07-02-2014, 11:35 PM
Welcome to the site!

I have personally driven another 1990 sweet 16, with the 2-bbl, V6, 190 hp. OMC Cobra drive, 21 pitch prop. GPS at 58 mph on Lake Michigan. If I remember correctly, I think it was at 5,200 rpms.

Which, BTW is .7 mph FASTER than my 1967 Donzi 16 went with a 260 hp V8, 350 with a Volvo 290 outdrive that has trim.

And the 16 will be faster in 1' to 1.5' chop.

Carl C
07-03-2014, 02:31 PM
This should be moved to "Donzi Performance Talk". No one looks in "True Lies". More people would see it and give you advice. I only know a thing or two about the 22s. :) Maybe a moderator can move it?