Regal 2650 Cuddy Cabin

New, and old Regal boat model information and questions.

Regal 2650 Cuddy Cabin

Postby DrJLJam » Wed Oct 04, 2017 11:03 am

Looking at 2003 Regal 2650 Cuddy Cabin in pristine condition. I am concerned about the mercruiser 350 in that boat felt sluggish and only had top speed of 35mph. Is this standard or should I be concerned about underperformance. Thanks.
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Re: Regal 2650 Cuddy Cabin

Postby cbsmith » Wed Oct 04, 2017 7:03 pm

What rpm did you see at wot?
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Re: Regal 2650 Cuddy Cabin

Postby Mischief Managed » Thu Oct 05, 2017 7:12 pm

That's way too slow. Should top 45 with ease.
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Re: Regal 2650 Cuddy Cabin

Postby 40GT » Thu Oct 05, 2017 11:28 pm

A quick search -
http://texas.boatshed.com/regal_2650_ls ... 54532.html

Regal 2650 LSC
Length
27'2"
Year
2003
Engine
1 x gasoline 300hp, Mercruiser 350 MPI Bravo 3 (2003)
Cruising speed (approx)
30 knots ( 34.5 MPH )
Max speed (approx)
45 knots ( 51.8 MPH)

So was the 35 MPH cruising or WOT?
Take a couple knots off as it's a sales add.
Was the bottom of the boat clean? - the question asked above on RPM is important.
Did the boat achieve the recommended RPM range for the engine at WOT?
If not - is the boat running the same size prop as it came out from the factory?
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Re: Regal 2650 Cuddy Cabin

Postby cbsmith » Fri Oct 06, 2017 4:47 am

Back in 2003there was a carb version of the 350 as well, not sure if it was offered on the 2650 or not but it had quite a bit less power than the EFI MAG version.
2014 Regal 1900
2010 Sea-Doo GTX 155
2007 Sea-Doo Wake 215
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Re: Regal 2650 Cuddy Cabin

Postby Mischief Managed » Mon Oct 09, 2017 7:20 am

cbsmith wrote:Back in 2003there was a carb version of the 350 as well, not sure if it was offered on the 2650 or not but it had quite a bit less power than the EFI MAG version.


I am 99% sure there were no carbureted engine options offered for the 2650, but even if there were, if the boat will go 51 MPH with 300 HP, it only needs 141 HP to go 35 MPH and there's no way any marine 5.7 ever came with only 141 HP. Guessing there's something very wrong with state of tune of the engine or the hull is very fouled (or perhaps both).
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Re: Regal 2650 Cuddy Cabin

Postby ZacUSNYR » Mon Oct 09, 2017 9:27 am

Much difference between a 2665 and a 2650? My 2665 with a 300 5.7 mpi and bravo 3 - i've seen 40 on the GPS WOT trimmed up on a calm lake.
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Re: Regal 2650 Cuddy Cabin

Postby Mischief Managed » Tue Oct 10, 2017 5:30 pm

ZacUSNYR wrote:Much difference between a 2665 and a 2650? My 2665 with a 300 5.7 mpi and bravo 3 - i've seen 40 on the GPS WOT trimmed up on a calm lake.


Massive difference, like literally a ton or more. The 2665 is a pocket cruiser loaded with amenities and weight, the 2650 is a cuddy cabin boat with fewer amenities, much less weight and much sportier performance
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