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You can garner more speed by going to the next gear ratio if you can swing the prop(clearance and shaft diameter). IE if your now 1.5:1, goto a 2.0:1. I've done that trick many times with gassers. The last 28 I did with 300hp MPI gassers I went with the 2:1. Fast was an understatement. I'm not sure...

OK - I get it. The LS3 might be an excellent choice once the 5.7's get tired. Maybe season after next ... I suppose the LS3 would be lighter too. I wonder if it's no larger (could fit in the 5.7 vortec space without a whole lot of modification? The other issue regarding supercharging seems to be oct...

My Bertram 28 has the 5.7L Vortec 350's with carburators. These are good for approx 310hp each. I was curious about using a turbocharger or supercharger on these engines to get an extra 100hp or so from each engine. I have not found anything online about this.

I know why the Norcold is not often replaced ... it's about 6-8 inches wider than my cabin door!

Since I'm planning some significant work this fall where I will be replacing the entire rear door and window area, I figure it's a good time to switch out the Norcold for an Isotherm 130.

I'm planning to replace my Norcold DE541 fridge on my B28 with an Isotherm Cruise 130. I have heard great things about the Isotherm such as extremely low power consumption from the Danfoss compressor while on 12V ... the ASU which retains the cooling for a long time after the engines are shut off et...

My B28 sits happily at her new home ... Northport Maine.

Took the kids out on two separate days and they LOVE THE BOAT!

Mike

OK - thanks for all the help ... My DIY projects are pretty bad so I intend to buy something that can be bolted on or hire a professional. I'll show off the results.

http://i41.tinypic.com/2lnbx9k.jpg I'm looking to replace my massive post mounted tackle box with a cockpit table. My desire is make the cockpit of my B28 more passenger friendly. I have a couple of folding offshore chairs and would occasionally put a double offshore folding chair against the trans...

http://i43.tinypic.com/se5zps.jpg http://i39.tinypic.com/33dw9sg.jpg http://i41.tinypic.com/aent6x.jpg http://i39.tinypic.com/5n99np.jpg We made it to Portland! ... we took another look at the steering Wed afternoon at Spellmans in Hampton Bays NY. Harry Woods stopped by to offer guidance and assis...

We should be at the boat by Noon on Wednesday ... we will try the bleed again based on the Charman instructions ... then we are on our way. Harry ... I'll give you a call on Wednesday if you have some time to stop by Spellmans, that would be very helpful. All of your kind words of encouragement and ...

Find out what the rated WOT rpm is on those engines and prop the boat so they will reach them for the sake of the longevity of them. Sounds like she's overpropped. You're getting speed but also putting stress at those rpm's. The boat can easily handle the way you have her rigged. How many turns on ...

Brewster Minton wrote:That boat was at Jacksons Marina in Hampton Bays ?

Yes..I purchased the boat from Spellmans and the former owner is buying a new Grady White.

We fueled at Jacksons the Saturday and walked around to see the boats.

They are gas engines ... Vortec 5.7 310hp. Not sure which gears but I'll find out. I'll also verify whether the props counter-rotate or not. The max rpm is 3900 so I think the former owner had chosen a larger pitch or diameter propeller because I think these engines should generally obtain 4500 rpm?...

http://i44.tinypic.com/21owzvd.jpg I am preparing to move my new to me Bertram 28 from New York to Maine. I have driven the boat for approx 15 hours and I'm somewhat frustrated with the handling. The 1981 Bertram 28 Flybridge Cruiser has Hynautic hydraulic steering and the original rudders. On Satu...