Prop Suggestion!

[SirBudman32]

Took my Genesis out today after rebuilding motor and new batteries, just don't seem to be get the rpm's like it should.
I'm running a CC 1515 2200, T 180, On 5s 5000 40c batteries. Tried with a M440 3 blade not bad but still should be more, Tried a X642, boat seem to run better but esc did not like it, 145f after 2 minutes and went into thermo shut down. looking for suggestion on a prop to try. Thanks for any Ideas.

[masonis1]

i have a mg. i know lots of people say octura x series are good. i run a grim 42*55 and its decent. everything stays cool.

x442 might be a good try

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[Make-a-Wake]

m445

[SirBudman32]

Thanks for the tips. Which way should I go, smaller diameter same pitch, or same diameter less pitch to get more revs out of the motor? looking into the x442 the m445 and the x438.

[Heaving Earth]

i run neu 2200kv on 5s in my mean machine with seaking 180 and m440 prop. 56mph heres a vid http://www.youtube.com/watch?v=TDUyJfai9-Q

[Heaving Earth]

and yes it will go into thermal shutdown if its really hot out or i run for over 4 minutes. just the nature of electrics man. its what happens when you push it

[Make-a-Wake]

My bad on the m445, I assumed you wer running it on the stanf=dard 4s fir a 1515 2200kv, now my suggestion is an x440

[srislash]

I would also stay with a 442 or 440 with 5s in these summer months.I have been running my Geico with a CC1515 and T180 for a year now.I was running a M645 but am down to a X642 now that it is warming up.

[CHIEFY_44]

You could also try turning the timing down and run a m445/545 reduced timing will help with heat you may lose 1 or 2 mph but lose a lot of heat build up, which is not good for the motor,esc and your cells, I have a mg that I run a leopard 4074 a t-180 with a m445 on 4s2p never had any heat or speed problems and it runs at 55mph regularly. Also I try not to run at half throttle as this can generate heat in the esc. Just my 2 cents worth.

[highflyerbill]

I've been running a MM now for 7mos. with a lep 4074-2200kv 5000 mah 4s2p with a x442 I've set the timing at 3.75 on my t-180 and it runs very well no heat issues . Even on a 100deg. day it ran better then I did . Even when I ran nitro boats you had to back off on the needle setting on really hot days . This weather is good for the grape vines not so good for FE's

[martin]

The Leopard 4074 - 2200kv is a y wind motor & is better suited to 10 - 15 degrees, 3.75 degrees is for d wind motors.

[highflyerbill]

On hot summer days every thing is much happier when runner on the Conservative side . Don't you agree ??

[martin]

No a y wind motor is not running efficently on low timing. Low timing is not conservative on a y wind motor, the same as a d wind motor wont run efficently on higher timing. Timing numbers dont mean the lower the number the more conservative it is as it all depends on the wind.

[highflyerbill]

that statment is just not correct . Do you know what effect timing has on a motor?

[martin]

What your saying is that the timing number is the same for d wind & y wind motors, is that correct.