HP gain vs MPH gain?
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AKA NoMoBoatin
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HP gain vs MPH gain?
I pick up 20mph with installing whipples and they say UPTO 50% hp gain with the system.Wasn't able to get it dyno before we installed them.I've heard you need 10 hp,16hp,etc. to 1 mph.Does anyone of the motor gods have any idea what i might have?
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Re: HP gain vs MPH gain?
There is a very good treatment of this subject in the Jan. '06 Speedboat magazine. Many factors are involved as described in real tests conducted by the author.
#4
21 and 42 footers
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Re: HP gain vs MPH gain?
This will be my first serious response to Rich....EVER!
After 70-80 mph I believe you need more HP per MPH than what is needed to go from say 40 to 50 MPH? A 50% increase would be 265HP additional. If you really jumped 20MPH then it seems you've gained more than 265HP to me. (Logic being you needed closer to 20HP per 1 MPH)
NOW, Get the thing on a dyno and stop guessing!!!!
After 70-80 mph I believe you need more HP per MPH than what is needed to go from say 40 to 50 MPH? A 50% increase would be 265HP additional. If you really jumped 20MPH then it seems you've gained more than 265HP to me. (Logic being you needed closer to 20HP per 1 MPH)
NOW, Get the thing on a dyno and stop guessing!!!!
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Re: HP gain vs MPH gain?
If you know you current hp you can simply input your weight(don't forget gas, passsengers and beer! ) and get a constant. Once you know your constant you can play with the other numbers. I've found it is extremelt accurate if you have the info to get a constant. Guessing at your constant doesn't give accurate results.
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Re: HP gain vs MPH gain?
Thanks for all the info.I think the most i gained in hp is 300 hp per side but i've been known tobe wrong before.