sv27 GPS Speeds!!

[kck741]

Tell use YOur SV27 speeds clocked on GPS.Show Pics To back your Speeds up if its more than 40 MPH or more.Tell your setup


Clocked mine at 29MPH today.All Stock 12 3600 Ni-Mh cells DTX.OSE water jacket.

[ice329]

The fastet I GPS was 35.1. I dont bother anymore but that was my best with a
X642 prop and a matched set of 7.4V IB3600's. Adjusted and tuned but basically stock/beefed cooling.

[fastbaltek]

14 cells ftw... dont have a gps but i runa x640 on 14 ib3600 cells and i dont think the prop is balanced or sharpened haha.

[obrien]

get that prop balanced before you mess up your motor and driveline. plus the boat will run better.

[zero9046]

45.1mph on a real windy day.




repeated a week later with two over 40 runs (no pics though)

I ran an ammo 2300kv motor
ose trim plates
ose cooling jacket
stock ESC
octura x440/3
ib4200 14 cells

[RiverRat]

Stock motor and esc, IB4200 12 cells warm off charger, x440/3, strut neutral, tabs neutral, rudder full under, rain danced hull, on light chop, 40.6mph & 40.2mph.
Same setup on glass 37-38mph.

[Dale Koblitz]

Stock motor and esc, IB4200 12 cells warm off charger, x440/3, strut neutral, tabs neutral, rudder full under, rain danced hull, on light chop, 40.6mph & 40.2mph.
Same setup on glass 37-38mph.

Rain Danced? Scuffed or Waxed? Never heard that term?

[kck741]

I think that is a hull wax not sure

[Ron B]

Raindance is what you put on your windshield of your car. works well on boat hulls.(used it before myself)

[Darin Jordan]

Stock SV27 with 4S1P of 3300mah Lipos and modified X646 prop - 43.6mph in a 5-lap P-Mono heat race...

[Bill-SOCAL]

Was that with the stock ESC??

[Darin Jordan]

Was that with the stock ESC??

Yes...........

[kck741]

It seems as if the 646 prop works well on the SV

[Dale Koblitz]

4s on the 646? Isn't that pushing it a little bit?

[Darin Jordan]

4s on the 646? Isn't that pushing it a little bit?

I suppose for some it might be... keep in mind that I mentioned it was a "modified" X646... And remember also that it's not just about the cells... it has more to do with the KV of the motor combined with the cells... The SV27 motor is only about 1700KV... so on 4S were only talking about 27,200 RPM... That's mild in my book... and this is a 6-pole motor with gobs of torque... It really didn't appear to be a problem...

Temps after 5 hot laps of racing and a cool-down were:

Motor => 126-degrees (with stock SV27 cooling jacket)
ESC => 108-degrees
Cells (4S1P Poly RC 3300mah 20C cells) => 96-degrees Used about 1850mah total (right around that figure anyhow...)

Ambient temp was only about 65 that day... and the boat was setup loose for racing...

Not trying to get a contraversy going... It is what it is... The GPS read 43.6 for that heat... and 42-something for the heat that followed with a different prop... Go figure...