Donzi GT250
Petty Officer 2nd Class
- Joined
- Apr 22, 2011
- Messages
- 110
I just noticed that with my Donzi Gt250 with OMC Cobra 350 and Cobra drive that when I am running at cruise at about 3400 rpm with the drive trimmed in I get a small rooster tail that comes up on the port side of the prop.
If I trim the engine out I get a flatter and more symmetrical rooster tail and also better performance.
I know this doesn't seem to make sense (the asymmetrical rooster tail) as i would think when trimmed in I wouldn't get any rooster tail.
Why do i get a asymmetrical rooster tail when trimmed in?
Any ideas what i am seeing?
If I trim the engine out I get a flatter and more symmetrical rooster tail and also better performance.
I know this doesn't seem to make sense (the asymmetrical rooster tail) as i would think when trimmed in I wouldn't get any rooster tail.
Why do i get a asymmetrical rooster tail when trimmed in?
Any ideas what i am seeing?