Prop Help

[Shav27]

I have a 10.8 (36 feet) Meter Trojan SF with Cummins 5.9 330 HP Diesels. Does anyone run the same set up? If so What props are you running? Thanks for the help

Captain Paul Shavatt
"Bottom Line"

[rossjo]

I have 6BTA5.9s in my F32 - 225 HP / each. I run 1:1 Velvet Drives w/ 17x20 blades = 30mph max.

You must have the new Sea Water After-Cooled, 24 Valve, P7100 motors.

Couple of Rules:
1) Go with biggest diameter you can fit
2) 1 square inch of blade area per 40# weight
3) Tip Clearance 1/6-1/7 of the prop diameter, =~ 14.2 - 16.7%,, min of 10%
4) 3-blade for Speed, 4-blade for large loads (in general)

Join http://www.BOATDIESEL.com - $25/year - best prop calculator on the internet!

[prowlersfish]

Paul , I am running 22x22 3 blades wheels with 300 hp cummins 1.53to1
gear your 330 Bs are realy 315 hp so real close to mine
I agree with Ross on boatdiesel.com


Ross the 330 is 12 valve like yours ( and mine )but has salt water aftercooler and the inline pump (p7100 ) Its realy a updated (and better) edtion of my 300

Paul

[rossjo]

I think there is a marine 330 that is 24 valve (like the trucks).

Do you have the Lucas CAVs? I've looked at upgrades to the P7100, but these fuel pumps are $2k/each.