Which gear ratio is better???
Is one faster or more reliable? - everything else constant between 1.36:1 with a smaller prop pitch (26p) or 1.5:1 with more pitch (29p) with both of them spinning 5,600 rpm's.
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Re: Which gear ratio is better???
It's Not That One Is Better Than The Other. Bigger Heavyer Boats Use 1.36 Which Puts Less Stress On The Drive. Most Boats Use 1.50. Where The Weight Limit Comes Into Play Im Not Sure But 6-8000 Lb Boats I Know Use 1.50. My Ol Weighs 12000 Lbs I Have To Use 1.36.
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Re: Which gear ratio is better???
I am sure there is alot more technical information that will be posted on this, but from what I know about this subject, you should be runnung a 1.50 gear until you run out of prop. By this, I mean that should run a 1.50 gear until you have enough horsepower to be able to over rev the motor with a large pitch prop.
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Re: Which gear ratio is better???
I've talk to a lot of people about just this subject.. They all tell me the same thing. It depends on the hull shape... the hull speed .. the weight of the boat... how much HP... what speed you are looking for... etc etc etc... I've asked if it is better to run a 1.36 with a prop that has less pitch... or run a 1.5 with a prop that has more pitch.. I get the same damn answer... It depends... Bottom line is it is all subjective to how the boat acts with the different gearing. Same thing with running the props "in" or "out"... grrrr... Same thing with prop diameter and style.. I can't get a difinitive answer on any of those questions........ :mad:
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Re: Which gear ratio is better???
Whatever gets you closer to a 30" prop.
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Re: Which gear ratio is better???
Originally Posted by john.sblendorio
Is one faster or more reliable? - everything else constant between 1.36:1 with a smaller prop pitch (26p) or 1.5:1 with more pitch (29p) with both of them spinning 5,600 rpm's.
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Re: Which gear ratio is better???
Originally Posted by GLH
Whatever gets you closer to a 30" prop.
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Re: Which gear ratio is better???
the application is a 38 Fountain 8,900lbs dry looking for top speed more so than mid range punch. Anticipating ~85mph top speed
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Re: Which gear ratio is better???
John, how can you stand having a boat that only runs in the 80's now?? LOL Is that why you're tinkering with it?
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Re: Which gear ratio is better???
Originally Posted by john.sblendorio
the application is a 38 Fountain 8,900lbs dry looking for top speed more so than mid range punch. Anticipating ~85mph top speed
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