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View Full Version : performance qwestion new shelby donzi



dockinit
01-05-2007, 07:30 AM
just purchased Donzi Shelby. When engine starts going to higher rpms and around 25 to 48 mph to boat veers hard to right. Is there a fin adjustment for this under prop or is it normal because of power??

Donzigo
01-05-2007, 07:33 AM
Where in Florida?

RedDog
01-05-2007, 07:46 AM
a MODERATE tendency to veer to the right would be normal. A HARD veer does sound good. There is no fin for your modern Mercruiser configuration.

It could be related to the prop you are using - what brand, pitch, diameter, and number of blades does it have? 4-bladed Bravo 1 by chance?

BigGrizzly
01-05-2007, 06:27 PM
Welcome to the board. We all have gone through this period at one point. The Shelby has a 2 inch higher X dimension. So with trim incorrect this would cause it to "flat side" which leans on the v and turns the boat. You probably have a Mirage plus on this which would be sensitive to trim. if the drive is trimmed in too far it will nose steer. Are the tabs up, if not bring them up. When you say high rpms at 25-48, thats is under 3,500 at 48mph. I think this is just a little driver education.

dockinit
01-05-2007, 10:56 PM
That is what it is.:cool!:

CrackerJack
01-06-2007, 02:39 PM
Post some pictures, always enjoy looking at a DONZI.:wink:

boldts
01-08-2007, 01:50 PM
If this is the Silver one from KY....It is a very pretty Donzi. I'd love to see some pics also.