1500 vs 1800 motor

[roadrashracing]

what one will give you more speed? I know the 1500 has more torque but what will that do for a boat?

[JimClark]

1500 will Handel bigger props

[roadrashracing]

I guess the best is just trial and error?

[Fluid]

The 1800 will give better speed on this boat. A large prop upsets many monos, promoting chine walk and handling problems. The 1800 will still spin a smaller but adequate sized prop faster. The 1500 will draw less amps if propped appropriately and extend run time.


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[roadrashracing]

I have a grim 40x53 would it work better with the 1500 I get less performance out of the 1800 vs stock.

[Fluid]

You'll be slower with that small, low pitch prop on a 1500 Kv motor. I believe that is smaller than the stock Impulse prop.

I don't understand the last part of your sentence. The Impulse comes with an 1800 Kv motor as the stock motor.....


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[TheShaughnessy]

that prop with the 1500 kv on 6s, now you're talking some speed. Don't know about a 60 amp speedo though.

[martin]

As Fluid has said that 40 x 53 is to small only 2.08" pitch, The stock prop is 2.51" pitch. Martin.

[roadrashracing]

so that prop I should just get rid of?