motor recommendations

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • forescott
    Hopelessly Addicted to RC
    • Nov 2009
    • 2686

    #76
    Originally posted by keithbradley
    Yeah batteries can get pretty expensive. Thanks to the great customer service at Neutronics I just got 2 for free...that helps!

    I think he is going to need a good esc (by good I mean something more than a $100 esc) to push that boat 60+ anyway. If he got a Swordfish 240 he could go either way.

    I just ran my boat a couple hours ago on 8s with a 452 prop and after jammin on it for a good 5 minutes temps were 105 on batts, 106 on esc, and 97 on the hottest part of the motor. I love it!
    I've been contemplating getting the 240. I know the one you have in rums old boat was sent back to OSE because it stopped working. When rum received it back it had clear shrink tube on it as opposed to black on the original. I never did hear if it was modified in some way to make it better. Sounds like its working like a champ though!

    Comment

    • keithbradley
      Fast Electric Addict!
      • Jul 2010
      • 3663

      #77
      Originally posted by forescott
      I've been contemplating getting the 240. I know the one you have in rums old boat was sent back to OSE because it stopped working. When rum received it back it had clear shrink tube on it as opposed to black on the original. I never did hear if it was modified in some way to make it better. Sounds like its working like a champ though!
      Yeah it has 8 awg wire now, where they didnt before (not sure if it is the same esc or a new one). On the OSE site it says all the SF 240's come with 8 awg wire now. So far it hasnt broke a sweat on my current setup.
      www.keithbradleyboats.com

      Comment

      • keithbradley
        Fast Electric Addict!
        • Jul 2010
        • 3663

        #78
        Originally posted by 08gtrking
        so i did the horse power calculate and the the 1340 on 6s is 2.9hp and the 1090 on 8s is 5.7hp so i guess im going to go with 1090 on 8s but now i have to see which hardware to get if you guys can help me on this?
        You cant really do that because you dont know how many amps you are pulling. 746W=1hp, yes, but to get the boat up to the speed you want it to go is going to take a certain amount of power, regarless of how its done. You can accomplish 2000watts by supplying 100v@20A or by supplying 20v@100A. Thats why I said I like running the higher cell count---running a higher voltage to net you the same power with less current. The 1340kv will pull more current to go the same rpm where as the 1090kv will need more voltage but pull less current. Make sense?
        www.keithbradleyboats.com

        Comment

        • 08gtrking
          Member
          • Aug 2010
          • 91

          #79
          yes

          Comment

          • 08gtrking
            Member
            • Aug 2010
            • 91

            #80
            I did the run time calculated on 5000mah it said ill have around 2 min run times you guys think that's accurate?

            Comment

            • 08gtrking
              Member
              • Aug 2010
              • 91

              #81
              Any hardware suggestions

              Comment

              • 08gtrking
                Member
                • Aug 2010
                • 91

                #82
                Originally posted by 08gtrking
                Any hardware suggestions
                any one?

                Comment

                Working...