sv27 GPS Speeds!!

[fastbaltek]

change your strut to neutral and trim tabs to a little positive and cock the rudder half way to the transom not full under.

[supervee1981]

i was running the stock setup the boat has for the batterys. I think the terminology or words would be 2S2P. Theres only two kinds right? (parallel and series?)

also since i have researched supervee's i have realized a CF45 prop is a lil too big and the people are right because after i run my lipo's or my NIMH's the motor is hot and speed control is slightly warm. If i got a 7xl i was gonna prop down smaller.

[Bill-SOCAL]

Take a look at this page. It does a great job of visualizing what the P's and S's mean

http://scriptasylum.com/rc_speed/_lipo.html

[Ctonez]

IME the 7XL is too hot.
Feigao's KV reading is not the best number to go by when comparing motors...The Ammo's and Neu's turn the advertised KV under load much better. The 7xl will likely burn up, whereas the Ammo will get pretty warm, but not dangerously hot...as long as your prop is reasonable.
The 8XL or 9XL is a safer choice and will give better performance than the stock motor.
Personally, I run the Ammo. You can run it with the stock ESC, but keep run times short, prop small, and check temps often.
I run it with a CC125, I like the headroom.

[supervee1981]

thats true a cc125 would be good headroom.

I think i will run the ammo 2300kv. Can the ammo 2300kv handle 5S or possibly 6S?

Today i went out to do a speed run and hit a big wave. I usually tape my garmin onto the top of my boat. Always worked fine with duct tape. Now i see why guys put there GPS inside the boat!! I was so mad at my self. Well anyways i hit the wave causing my supervee to do a awesome barrel roll and in the twist in mid air, the garmin flew off and sank to the bottom of the lake. So now i have to buy a new garmin. I thought if you put the garmin in the boat it wouldnt pick up the satellites or maybe it would decrease the signal. If anybody can tell me otherwise please do so, because i don't want to follow my superstitious mistake again.

[Avanti]

never had any issues with running the gps in the boat
sorry about your loss
it always sucks to lose something that was not cheap

[Ctonez]

thats true a cc125 would be good headroom.

I think i will run the ammo 2300kv. Can the ammo 2300kv handle 5S or possibly 6S?

5s=18.5V
18.5V x 2300Kv = 42,550 RPM's
That's too many rpm's to try and spin in the water.
5s or 6s is a really bad idea IMO and will likely be the same as lighting your money on fire just to see it burn.

Acquiring the Satellites before putting the GPS in the boat is advisable, but yes, the GPS will be able to communicate through the fiberglass hull.

[ice329]

"I usually tape my garmin onto the top of my boat"

Remind me never to loan you my GPS, or Camera, or dog.... there is always aquacraft scooba gear to look for it...new hobby...

[Dale Koblitz]

I know guys who run 5s on the stock set-up but not 6 and that's only 1800 or 1600kv so yeah I think you'de be pushing anything above 4s with a 2300kv ammo! But if your made of money and like to gamble more then I do go for 5s and prop down but watch your temps and don't push it with long wide open runs just give it bursts! let us know if you try it!

[supervee1981]

ok i might try it. I can go 4S , 5S, . I will let you know. What ctonez said 42,000 rpm would be too much for water and something might fry. Well it was a thought. Defenately would need a beffier ESC at least 100amp or more. I will have to buy a gps soon to try it. So i will let you know.

[supervee1981]

5s=18.5V
18.5V x 2300Kv = 42,550 RPM's
That's too many rpm's to try and spin in the water.
5s or 6s is a really bad idea IMO and will likely be the same as lighting your money on fire just to see it burn.

Acquiring the Satellites before putting the GPS in the boat is advisable, but yes, the GPS will be able to communicate through the fiberglass hull.

thanx for letting me know if the GPS will communicate through the fiberglass hull. Now i wont be such a dumbass

[t warne]

I guess it's time that I picked up a GPS so that I can be a bit more scientific in figuring out which setup is actually the fastest. Can you please tell me what brand and model GPS you are using?
Thank you very much.

[OJ racer]

That looked about 30ish to me.

[duncanjerry]

Try the GARMIN Forerunner 201 gps. It's slightly larger than a watch, waterproof, and 69.99 on ebay. I just tape mine right on top of the boat. Have fun.

[Bill-SOCAL]

FWIW, I think at the Valdosta SAWS this past weekend there was a verified 49.9 mph for a two way average record time with a SV. This was in the "Open" class.