Freshwater versus Saltwater speeds
#1
Salt water speeds were always supposed to be faster than freshwater speeds.Recently,with the advent of the twin-step, I have heard several knowledgeable experts say that it is not a factor anymore. Salt or freshwater is the same. What do you think?
#3
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Joined: Apr 2001
Posts: 10,833
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From: Beautiful Fort Lauderdale www.cheetahcat.com
Originally Posted by pm203
Salt water speeds were always supposed to be faster than freshwater speeds.Recently,with the advent of the twin-step, I have heard several knowledgeable experts say that it is not a factor anymore. Salt or freshwater is the same. What do you think?
#5
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Joined: Oct 2001
Posts: 721
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From: Lake Norman, N.C.
Originally Posted by pm203
You can tell that to Phil.
I have never talked to anyone that did not get similiar results
#7
Poker Runs America researched this very topic in the past year (maybe longer), their analysis showed negligible difference between the two mediums. Temperature, humidity, chop were MUCH bigger factors. I wish I could find the article, it was very well done. I sent an email to PRA inquiring about the issue it was posted in, but they never responded
#8
I did the Lake Michigan summer, Florida winter deal for 20 years, never saw any differance. A displacement hull will float higher and have less wetted area due to the higher specific gravity (about 2.5% ) of the salt water. So unless you have a tugboat I don't think the differance is significant.
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Marc
www.mercruiserparts.com
www.go-fast.com
www.bammarine.com
www.cyborgtransmissions.com
It's not alive -www.BoatStuffExpress.com - temporarily retired
#9
This subject was tossed around on a thread called - "Arneson surface drives [ ASD - 6 ] in freshwater" , posted by Frogger 1403. Tonight it can be found on page 31
My experience is that my Nor Tech actually goes 2 or 3 MPH faster in freshwater.
Bob
My experience is that my Nor Tech actually goes 2 or 3 MPH faster in freshwater.
Bob
#10
Originally Posted by Troutly
In theory, I would have to agree that saltwater should be a tad bit faster than freshwater......BUT, to have an accurate comparison, all things need to be equal (except for the type of water), such as elevation, air temp, humidity, fuel, passengers, etc.
For instance, most places we boat in freshwater is at an elevation of 800 to 1000 ft. This will make a difference on the power produced.
For instance, most places we boat in freshwater is at an elevation of 800 to 1000 ft. This will make a difference on the power produced.




