UNDERSTANDING PROPELLERS PART 4 - 70hp to 140hp - Group D outboards
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- Опубликовано: 29 авг 2024
- Choosing the right propeller for your outboard motor can be a confusing and daunting process. Therefore Steve Evans from Propeller Warehouse has compiled a 7-PART Series explaining all the different outboard groups and the propellers that suit them. This knowledge is applicable to all brands of propellers and outboards. This fourth instalment concentrates on Group D outboards from 70 to 140hp.
A great insight into the ‘secret’ world of prop choices.
I own a 140 Suzuki & have had trouble propping it. The dealer initially pushed me into a 4 blade prop due to how & where I use my fishing boat. I cross a few dangerous coastal bars here in Gippsland Vic & needed a good hole shot type prop. It gave me good hole shot but my top end & economy suffered greatly.
I spoke to a boat mechanic who was experienced in boat racing. He recommended one of ur 3 blade 19” Stella s/s prop. It’s improved my hole shot, economy & top end speed greatly.
There is a movement down here in everyone going to a 4 blade prop which ‘will fix everything’. There are these ‘experts’ going around propping peoples boats with a particular manufactures brand prop.
I must be the first person I know going from a 17” pitch 4 blade to a 19” 3 blade.
Awesome information from an experienced engineer. Thanks, Steve, for your outstanding service.
I have a Johnson 140 4 stroke that from what I’ve seen was built by Suzuki. Running it on a Larson 180 sei o/b. it has a 14x21p currently with good hole shot, but I’d like to get another 10mph out of it. Am I just looking at a taller pitch or where should I be looking with regard to rake and cupping
Watched the whole thing ..I have a 75hp Honda, aluminum fishing boat , has a 15 pitch ,wish it could go a little faster ..
What about a 60 hp Johnson 2 stroke on a light 16 ft aluminum fishing boat