Rigging a 140 HP

bhive

Cadet
Joined
Feb 18, 2007
Messages
24
Has anyone rigged a Stingray 551 ZP with a 140 Evinrude? How high do you rig the motor with the notched transom? I know on a normal v hull it is normally cavitation flush with the bottom of the hull. Do you rig this one higher than normal?
 

DHPMARINE

Captain
Joined
Dec 16, 2003
Messages
3,688
Re: Rigging a 140 HP

Not familiar with the boat,but I think you would mount it flush on the transom.Then after a water test,and prop test,raise it a hole at a time til you have what you want.

Each boat will be slightly different depending on load and where it sits in the boat.

DHP
 

Dhadley

Supreme Mariner
Joined
Feb 4, 2001
Messages
16,978
Re: Rigging a 140 HP

It all depends on the measurements of the pad and step. Keep in mind the water will come off the pad on about a 45* angle, give or take some and it changes with speed. The longer the step (setback) the higher the motor will mount.

If the step is roughly say, 8" to 10" back and 3" to 5" up then mount the motor so the AV plate is at least 2" to 4" above the pad. You'll probably end up higher. Keep in mind the style of prop has a great deal to do with this. That'll give you a good starting point. You don't want the AV plate too low on a pad bottom boat, the handling will be unbeliveably bad. Again, how bad depends on the pad dimensions and shape.

It also depends on if it's a straight step or a pocket. Just for kicks, run a straight edge from the bottom of the pad straight back. From the top of the transom measure down to that straight edge and let us know what it is. I'd bet it's 22" to 23".
 
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