Mariah 27 Davanti
 

New member from Norway

I have just bought a used 95 mod Mariah 27 Davanti and i wonder if anyone on this forum can help me with a user/owner manual for this boat, and also any info about this boat is highly appreciated.(pictures ?)

The boat is now in Florida and will be shipped to Norway within a couple of months.

Since im gonna change the engine i would like to know what topspeeds this boat have with different set up`s

Thanks/Quasipadro

Welcome to the board quasipadro. The owner's manuals are very universal, and they were not made special for each model. We do have a few of them online in our contributors section, as well as the wiring diagrams you're searching for! Click the "Donate" button for more information.

What engine do you plan on swapping in?

27 Davanti
 

Well, im thinking about diesel (Mercruiser 320 hp diesel), but im not shure yet.
Right now the boat has a 414 hp that needs to go because of the Ce marking needed for the European market.

Does anyone know what top speeds this boat will do with different engine set ups?

Thanks/Quasipadro

Hi Quasipadro,

Here is some general performance data for the 1995 275 Davanti:

Engine 5.7L Top Speed = 42 - 48MPH or 68 - 77 Knots

Engine 7.4L Top Speed = 50 - 55MPH or 80 - 88 Knots

Engine 7.4L (454 MAG) Top Speed = 54 - 60MPH or 87 - 97 Knots

WetWilly

Re: Mariah 27 Davanti
 

Don know why I'm posting as the lasts were so long ago, but maybe it will help someone if they need it in the future. I have the 454 with a supercharger on it and 28's for props, I believe the gear ratio is 2.0 and I run about 52 on gps at sea level somewhere around 1/3 throttle whuch puts my in the WOT range of the motor. When I had the boat in Denver it ran 42-46 full throttle. The boat came with 24's and was just a pig with no blower. So the 28's and the blower help in a huge way