Please help! What should the top/cruising speed be for my boat/engine?

[sarbear]

It's not actually my boat which is why you'll find I pretty much know nothing about it...but I'm in a time sensitive situation and trying to find help so I turned to here!

1995 SeaRay 370 DA with a 7.4l GAS engine....

What should the top and cruising speed be? And would another motor be a better choice? If so which one and why? Have an appointment soon with a mechanic and trying to know as much as possible before any decisions are made.

Thank you!!

 

[bahamabreisus]

Just guessing, top end should be high 20s mph, cruise speed low 20s. Hope this helps

 

[dpmulvey]

Just guessing, top end should be high 20s mph, cruise speed low 20s. Hope this helps

Second that vote on the high end.

I would add....very low 20s. Maybe high teens to 21 at cruise.

 

[Southpaw II]

The only gas motor offered was the 310HP version, as this was before the "Horizon" 380 HP version was available. I concur with the others, but there are several 370DA owners here to comment. Perhaps they will chime in.

Don

 

[Air O'Nautical]

If this is a test ride. It's more important to see rated WOT. Find it on the engine sticker on the plastic cover over the carb. Should be 4000-4400 rpm or something like that.
And, see that the temp doesn't get much higher than around 170-180 max.
The actual speed isn't as important.
I'd guess 20+ cruise and 29 knots WOT or 23mph-33mph.
(my speed guess is based off my bigger boat with 7.4L)

Have fun,