sv27 GPS Speeds!!

[fastbaltek]

NICE

how modified are we talking?

[Dale Koblitz]

The 3700's I posted on battlepack.com under clearance were 3700 at 20c and 4250 at 18c so they were both at like 70 to 100 amp continuous but they looked like the same packs. Well the 3700's did anyway. Try going on battlepack.com and looking under close outs. and the 3700's were only like 50$ and the 4250 18c's were only like 60 I think. The site isn't working for me either now?

[Eodman]

Rain dance Is a car wax & RainX is the stuff you put on your windshield!

[Bill-SOCAL]

FWIW I finally got a GPS speed on my SV today. 36.7 mph.

Stock motor and ESC. X440/3 S&B. PolyRC 25C 3,700 packs, 4S1P.

I still like this boat. Tons of fun and I'll run it anywhere!!

[kin]

no gps but got a video tho,,, make a guess how fast was that run , i got no ideam myself

http://www.youtube.com/watch?v=l5nEiAroBP4

[Avanti]

mines been 42+
http://forums.offshoreelectrics.com/...ead.php?t=1956

[supervee1981]

i got 28mph with the garmin. im running propel 14cell 4500mah. Graupner CF45 prop. Everything else stock.

http://i158.photobucket.com/albums/t94/bfggamer81/100_1088.jpg

http://i158.photobucket.com/albums/t94/bfggamer81/100_1087.jpg

http://i158.photobucket.com/albums/t94/bfggamer81/j.jpg

[zero9046]

supervee, that speed sounds a little low for 14 cells, even with a CF45. is propel the name of the battery brand? if so, i've never heard of them. mind if i ask where you picked them up?

also, how is your boat set up? rudder raked under or back, position of the trim tabs, angle of the strut? i imagine you should at least be able to get into the mid thirties with that setup.

[supervee1981]

[IMG]http://i158.photobucket.com/albums/t...1/100_1088.jpg[/IMG]

[supervee1981]

yeah it is a little low. I have it all stock except the batteries i got from ebay. They are good quality batteries. I have both turn fins on, maybe thats slowing it down. Those batteries are heavy as well, which makes the boat run real deep and wet. Maybe i should go lipo?

[Avanti]

the cheap batteries is you problem with speed sv1981

[kin]

yeah it is a little low. I have it all stock except the batteries i got from ebay. They are good quality batteries. I have both turn fins on, maybe thats slowing it down. Those batteries are heavy as well, which makes the boat run real deep and wet. Maybe i should go lipo?

nice pain job on the hull tho, yeah u should try lipo batt instead , they change the whole ride of your boat , play with your CG to get her stable , watch my video in the earlier pages , i was runing much of it stock condition too just 2 blade props , kekeke

[zero9046]

I think something else needs to be changed before you necessarily consider using lipos. On 14 cells, you should be able to get almost up to 40 even! Your rudder should be tucked full under, trim tabs probably neutral or a little positive, and turn fins pretty much vertical. your strut should be level with the bottom of the hull.

as for battery placement, you might want to consider placing your batteries a little closer to the transom on 14 cells, but definitely not any further forward than the stock positions.

that you say the boat runs real wet makes me think that those trim settings i mentioned above need to be looked at before a change in batteries.

however, i would be suspect of batteries purchased off of e-bay, especially a brand that doesn't sound familiar. that's not to say those batteries aren't great, but they could also be the culprit.

check your trim settings first though!!

[ice329]

I was sent a set of the propel 4500's by Tenergy to try. This is what I have found. They are a true 4500 pack. They do hold up as far as heating up. The cells do not hold up with good voltage at the amp draws of the sv. That is the problem. Yes they work and yes they are good to sport around, and yes I feel they will last and they do stay cool. I tested them, fresh off the charger at only 25 amps the pack drops imeadiatly to UNDER 7 volts and 2 min in its way down like 6 1/2. Put them in something that drains less and they last a long time but still lack the punch. So hearing 29mph using them does not surprise me at all. A good set of IB3600 packs will blow them away. My favorite packs are still the IB3600 packs even over Lipo's.

[domwilson]

My guess is that these are the batteries...

http://www.all-battery.com/index.asp?PageAction=VIEWPROD&ProdID=1830

If you are going to spend the money on another set of batteries, you might as well just kick out a few more dollars and buy some lipos.