Depowering a Turbo DD?
- Thread starter Chase
- Start date
The friendliest place on the web for anyone who enjoys boating.
If you have answers, please help by responding to the unanswered posts.
If you have answers, please help by responding to the unanswered posts.
DennisB1
Senior Member
- Joined
- Jun 12, 2015
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- 234
- Location
- USA
- Vessel Name
- Water Music
- Vessel Make
- Grand Banks 49 classic
I would change the pitch of the props to maintain the full rpm range of the engine. Work with a prop shop to say set the max consumed hp at max rpm to 350hp. As a guide 5 gal/hr = 100hp. 350hp would be 17.5 gal/hr rather than 24.2 gal/hr at 485hp. If you operate at displacement speeds your consumption will be much lower. With lower pitch props the rpm will be higher at say 9 knots than with the existing props. Unloading the engine should give better service life.
Lepke
Guru
- Joined
- Jun 19, 2016
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- Charlie Harper
- Vessel Make
- Wheeler Shipyard 83'
Detroit Diesel DD15
Refers to current 4 cycle engines.
Refers to current 4 cycle engines.
‘75 Tolly
Newbie
Just a comment in regards to the durability of a Detroit 6-71….
We have a 6-71 in a 1964 Euclid C-6 dozer… 238 hp rating. The machine sits on a mountain at 7000’ over the winter season and starts up (with block heater) every spring to do work! Note: best to use Delo 100 oil ….
We have a 6-71 in a 1964 Euclid C-6 dozer… 238 hp rating. The machine sits on a mountain at 7000’ over the winter season and starts up (with block heater) every spring to do work! Note: best to use Delo 100 oil ….
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