Diesel Engine recommendations

RUSSELL

2009-04-16 03:48:48

I have a 25 ft farralon troller that weighs in at about 11k currently it has a 350 with a velvet drirve with 1.52-1 gear. Pushed by a 14x16 prop

I get about 9 knots cruise, Which is about as fast as I want to go. I am planning on putting a four cylinder diesel approx 130=150 hp. Iam not sure of the best gear ratio to match with that engine . or prop size . The boat has an 8ft beam and drafts 3foot The narrow beam really wont allow for the weight of a straight six like a cummins 5.9. I don't really need that much engine any way. Any engine and transmission recommendations would be greatly appreciated.

angus

2009-04-16 14:36:08

You should try boatdeisel.com. They have alot of info for calculating these things.

kenboe

2009-04-16 16:15:28

Tony Athens, Seaboard Marine in Oxnard California has done a lot of these and has used the 5.9 Cummins in the 25 foot Farallon quite successfully. http://sbmar.com/Articles.cfm

He has been available to discuss the conversations with folks. Check him out on the web and give him a call. Search the link that I gave you or do a search on his name, "Tony Athen Marine".

He is the GURU!

actionalaska

2009-04-18 17:27:15

Check out the Perkins Sabre line, inline four, really great little motor. The natural aspirated engine is not quite 130 hp, but close, I think that the model with a turbo gets really close to 130. Or you might want to take a look at an isuzu, they make some great motors for smaller boats. Good luck

DiamondLil

2009-04-29 20:03:33

Sisu makes a 4 cylinder, 130hp, 490lb engine. The new version looks good. I have the prior generation six in my boat and have been very pleased with it. Dave Grant was a great guy to work with.

http://www.grantsmarinediesel.com

Joe

RUSSELL

2009-05-06 23:29:35

Hello folks thanks for the engine recomendations, I will keep them in mind for the winter projects