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.

http://i11.photobucket.com/albums/a160/zero9046/DSC00320.jpg


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... ;)

[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/showthread.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/k.jpg
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]

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

[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.

[domwilson]

Cheaper still is to tear those Propel packs down and install battery bars. Believe me, It makes a big difference.

[ice329]

Its the cell itself. Its nuts to buy them when good IB3600 packs are the same price. I have tryed a lot of differnt cells. The IB3600 is the toughest cell, that stands up and does not fail like the 4200's. Well its getting hard to find them now anyway. Cant argue with this, just toyin around...running 6 cell IB3600 packs and a M445. The even 7 cell propel wont touch this. http://s110.photobucket.com/albums/n103/ice0329/?action=view&current=MVI_1389.flv

PS this exact boat is avail on Ebay http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=300198945573&ssPageName=STRK:MESE:IT&ih=020

[supervee1981]

I think i am going to go back to lipo. I thought these propel batts were the best on earth as for being a NIMH batt. I figured i could use the heavyness of the batteries to adjust the CG. I do need to adjust my trim tabs. My turn fin is directly vertical. Side fins are cocked back a lil.

[supervee1981]

YES DOMWILSON the link of the propel batterys are the ones i got but mine were custom built and are 7 cell not 6. The guy did a awesome job. Heres the ebay guy who sells them

GET INCREDABLE RUN TIME!!!!!!!!


GET LONG-LONG-LONG RUN TIME & 45MPH+ ROOSTERTAIL POWER!

DONT TAKE CHANCES BUYING FROM SELLERS WITH LESSER FEEDBACK RATINGS! SEE MY 100% POSITIVE RATING FROM OVER 1430 BUYERS!



YOU WILL GET 2 OF THESE GREAT BATTERY'S W/ DEANS PLUGS INSTALLED

SEVERAL OF MY CUSTOMERS HAVE WENT OVER 47MPH WITH THEIR SUPERVEE 27'S RUNNING THESE DUAL 8.4V PRO-RACER PACKS!




THESE ARE A PERFECT FIT IN THE SUPERVEE 27!



http://i158.photobucket.com/albums/t94/bfggamer81/SV853.jpg

[fastbaltek]

maybe you need to move the batteries closer to the transom.

[supervee1981]

i moved them all over the place. The problem is im not running lipo's and these packs are weak. Also...weak packs and they weigh 15oz a piece. I can run 7.4v lipo packs 4000mah which weigh 7.90z a piece. I think thats the best way, along with tweaking the turn fins and stuff.

[zero9046]

i think you are selling yourself short by just assuming that nimh is the problem. i've gone 45mph with my sv and that was using 14cell nimh. lipos will give you more speed, but if you are only doing 28mph on nimh, the batteries are the least of your problems. things may not be trimmed out right... you might also try and find a way to borrow another set of nimh of a different brand and see how those work.

those batteries are surely contributing, but i would be really surprised to see that they rob you of 10mph in speed just because they are lower quality cells.

bottom line, be fair to yourself, and try your boat on a good set of nimh before you spend a huge chunk of change on lipos only to find out your boat is still slow. you need something to compare your "norm" to.

[fastbaltek]

:iagree: :iagree:

i couldnt have said it better. mine boogies on 14 cells on a balanced 640 and lightly sharpened. when i first got it, it ran wet. maybe you need to make sure the strut is at 0 degree or parallel to the bottem of the boat, few degrees off makes a lot of difference.

[pacificstr75]

I would also say that the problem is your battery. I used it before & the result is very poor. They even over heat after i used it. So maybe try the IB or GP batteries if your not ready to go lipo yet...

[Eyekandyboats]

i am pretty sure those batteries are the problem.

[DeWalt 1/8th]

Ran my friend Jeff's SV27 today,after doing a few mods for him :tongue_smilie:
Motor esc stock
Batts IB4200 12 cells
Mods are strut angle 2deg down angle
battery placement
and mod X642 prop

first run was 41.5 mph
second run on same cell packs 41.8 mph :rockon2:

you have to excuse pics quality taken on cheap camera phone

Jason

[Dale Koblitz]

Not bad at all for the stock components. Actually better then most! I'm still waiting for things to thaw out here in Wisconsin for my maiden voyage. I got 2 new boats near x-mas so I'm getting very impatient! Actually I finished the first one like the same day the water froze last fall then I got a new SV for christmas. The only advantage is I've had lots of time to set them up the way I want for spring.

[supervee1981]

well i ran my 7.4 2S 4000mah packs today and i got 32.8mph on the garmin.

Stock motor
stock esc
Graupner CF45
scuffed bottom
tabs 2 degrees negative
rudder cocked in all the way towards the transom
1 turn fin on each side stock supervee ones...angled back for loose driving

[supervee1981]

if i run the same setup listed above does anyone know if its worth getting a fiagao 7XL (2,328kv) or the ammo (2,300kv)?

they both are the same price practically......

stock motor is 1,700kv = 27,000rpm
fiagao and ammo 2,300kv = 36,800rpm assuming you are running 16volts (16cell) or 4S.

anyone have any suggestions on this idea that everyone usually does or any experienced boaters?

[DeWalt 1/8th]

if i run the same setup listed above does anyone know if its worth getting a fiagao 7XL (2,328kv) or the ammo (2,300kv)?

they both are the same price practically......

stock motor is 1,700kv = 27,000rpm
fiagao and ammo 2,300kv = 36,800rpm assuming you are running 16volts (16cell) or 4S.

anyone have any suggestions on this idea that everyone usually does or any experienced boaters?


The 7Xl or ammo would work but you will probably need a new ESC,
For the size prop you are running i would try the 8XL.


For the 32.8mph run where you running 2s2p or 4s1p setup ?

[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.

[TerryC]

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

Actually the 49.9 mph was in the open class, Modified was 44.3, and stock was 39.
some very good numbers I think for all the classes

http://www.rumrunnerracing.com/feforums/attachment.php?attachmentid=17225&d=1208662857

[Bill-SOCAL]

These are verified on the lights and are likely the best numbers out there. They are also two-way averages, which likely represent the best "true" speeds for a boat.

So it gives you pause when you see claims of 50 mph SVs!!!

I know for a fact that my SAWS speeds are lower than what my GPS says. Keeping a boat on the water for 2 consecutive passes really tells you what the boat is doing as opposed o the single virtually instantaneous max speed that a GPS records.

Oh, and I fixed the error in my previous post. Thanks for getting me straight on that.

[TerryC]

that is very true in testing before i went to the saws this weekend I ran 45.5 with my sv in modified trim with the gps and at the event that same setup only got me a 41.9 average. so the setup I used to set the 44.9 in the modified class was completly different. Im still surprised that the hull can handle 49+mph.

[Bill-SOCAL]

Mind sharing your set up? Motor/ESC/battery/prop???

My SV with stock gear on 4S1P / 25C 3300 / x440-3 runs GPS at 39.2 best speed. I figure it would be 35 - 36 on a true SAWS run.

[TerryC]

Sure I was running stock aquacraft motor and esc, 2-2s 7.4v 5000mah flightpower packs, and a prather 230

[Bill-SOCAL]

How did they define stock/modified/open??

[TeamFubarRacing]

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


Chris Harris did not run a SV at FE-IV... Reed Eagle ran an Open class SV at 49 mph

[Bill-SOCAL]

Sorry if I got the names wrong. I corrected the errant post. Regardless, that was a screaming speed for an SV!!!

[TeamFubarRacing]

Sorry if I got the names wrong. I corrected the errant post. Regardless, that was a screaming speed for an SV!!!

it's also interesting that Reed's SV27 was a [2s-2p] set-up... not a 4s package

i'll let Reed give the details of the set-up :zip-up:

Ron

[Bill-SOCAL]

What modifications did "Open" allow?? Anything goes as long as it was an SV hull?

[TeamFubarRacing]

What modifications did "Open" allow?? Anything goes as long as it was an SV hull?

must have origional hull bottom and top... anything goes, be creative

[TerryC]

Here are the rules for this past weekend and possible other races.


2. BOX STOCK. Just like the boat comes out of the box. For power ...any NiHm cells ONLY and you may upgrade your prop to metal as long as its a Grim Racer prop, only. Any adjustments are acceptable so long as they meet this general guideline.

3. Mod Class. must have Original boat hull and lid, SV motor, SV Strut and Rudder, any power - Lipo allowed. Plus any prop, any esc or radio. No restrictions on turn fin or tabs.

4. Open. Must have original Hull bottom and original lid. All else is legal. Be as creative as you can. Go Fast

[Bill-SOCAL]

Be as creative as you can. Go Fast

That about covers it!! You guys did just that!!

[Ctonez]

These are verified on the lights and are likely the best numbers out there. They are also two-way averages, which likely represent the best "true" speeds for a boat.

So it gives you pause when you see claims of 50 mph SVs!!!


:cursing: ...wish I could've been there. Makes me feel pretty good that I'm doing the speeds I'm doing though...whether people believe it or not.:cool:

[Bill-SOCAL]

Just the difference between GPS "max" speeds and the average of two passes on a 330 foot course.

[Ctonez]

understood.
...not looking to debate. Especially since I wasn't able to attend, and bragging isn't really my thing.
...and unfortunately my fast "Open" SV doesn't have a class to race in since I have a bigger faster boat for Pmono this year.
Why am I not racing my bada$$ SV in Pmono this year? Because admittedly none of my boats is more difficult to drive than my SV going Pmono speeds, especially running an oval in 33" boats' wakes ...Taught me a ton about driving though.:biggrin:

Still...I'm bummed, I would've liked a chance to put my boat through the lights. Perhaps I coulda been a contenda...?

My sincerest congrats to all the record breakers!

[Darin Jordan]

Still...I'm bummed, I would've liked a chance to put my boat through the lights. Perhaps I coulda been a contenda...?

My sincerest congrats to all the record breakers!

Corey,

Maybe it's time that Puget Sound Fast Electrics hosted it's own SAW event?? Lake Tyee might work if we could catch it on a calm weekend... definately long enough...

[Ctonez]

Another great idea from Darin?!? How does he do it?

I officially second the motion.:rockon2:

-Corey

[fastbaltek]

i remember seeing a sv27 hull split in half and had about a half inch or so cut out and then put back together, looking really low profile.

[stampedeVXL]

I recently just signed up on this site as i have been reading for information on alot of rcs, and the reviews people write.

Im looking to buy a new boat, i now have a Traxxas Villian. When i first got the boat it was fast because i was new to boats. Now being a little more skilled, im looking for something FAST!!!!! BUT ELECTRIC

Ive been reading and reading about the AquaCraft SuperVee and the ProBoat Brushless formula fasttech. I dont know which one to buy, i have heard alot of things not so positive towards proboat, as well as the supervee27. They also look very close in speed, but ofcourse i would like to figure out which one is actualy fastest.

If anyone could help me with my decision, or if anyone has any kind of information that i may not know about i would appreciate the response.

SORRY ABOUT THE LENGTHY POST. ITS MY FIRST POST

[Mich. Maniac]

Feifao 8xl, hydra 120A, k45 prop, 4S1P lipo= 46.4mph on garmin with witnesses

[ETOWNE]

Feifao 8xl, hydra 120A, k45 prop, 4S1P lipo= 46.4mph on garmin with witnesses
Who had the GPS.... I don't remember seeing a GPS.... We'll have to ask Kenny.....j/k

I seen it

[Mich. Maniac]

wow, other than a saw setup I am the fastest??? Nice thing is I can wip the corners like nothing. Im suprised there arent any faster than mine. I should put a 48mm prop on and prolly hit a nother mph or so.

[ChaKane]

Give this one a look:

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

[62 bugzilla]

I'm pretty sure he was talking about sv 27's in this forum.

[ChaKane]

Sorry about that. Had too many threads open and dropped this into the wrong one.

[Ctonez]

I've done 53.7 on GPS in oval trim in a club race. Ammo 2300kv and a 437/3 blade. No pics, but several witnesses, including the Neu-powered Delta Force driver that chased me until he passed me on lap 3.
Does that count?:smile:

[Avanti]

obrien went 47.1 so far

[RCprince]

we did 49.7 with and ammo 2600 and a grim 45x68, told my cousin that prop was to big...after a few runs poof...speedo and one 2s pack

[obrien]

The biggest problem is keeping the damn thing in the water. lol

[ghostofpf1]

40mph stock set up using 4s 4300 mah zippy lipos. Radared using a cheapy Bushnell unit with the front shroud removed for improved accuracy.
Ghost

[Ub Hauled]

Some batteries (the cheap ones) do not hold the voltage under load... you'd be suprprised of how much they drop... I have not seen his setup or anything but just by him saying that he got a "no namer" cheap off of ebay tells me that the batteries have a good
chance of being the problem... at least one of the major problems.

[Mich. Maniac]

Instead of editing my post I just wanted to add that I used a Watts Up meter and measured spikes at its max plus. Last max reading was 100.72 Amps. Is or has anyone been able to log their amp draw using 8xl and k45mm prop?

[hex-dj]

Ghostofpf1. I sent an MO today to Optics Planet for the same radargun to measure the true speeds on both my moded SV 27 and moded BJ 26. From what I know the Bushnells are quite accurate. I ve seen guys use them in drag racing tracks.

[ghostofpf1]

Ghostofpf1. I sent an MO today to Optics Planet for the same radargun to measure the true speeds on both my moded SV 27 and moded BJ 26. From what I know the Bushnells are quite accurate. I ve seen guys use them in drag racing tracks.

I found that removing the smoked front cover enhanced it's ability to pick things up.
HTH
Ghost

[kssi]

today with ammo 2300,stock speedo, grim 4255 prop, 43 mph i think it is under prop motor seemed hot but speedo was not that warm.

[Ctonez]

today with ammo 2300,stock speedo, grim 4255 prop, 43 mph i think it is under prop motor seemed hot but speedo was not that warm.


nope, more likely over-propped and not letting the motor hit peak revs IME. try a 437/3 or x440 2-blade, I think you'll get more speed.
...you're using lipos, right?

[hex-dj]

Ctonez is right Kssi. Like he said try the Octura x 437 two or three bladed or a 440 2 blades. Never try a 442 with an AMMO as you may fry the batteries... A grim 42 x 55 is way over propping for a 2 pole AMMO 2300.

[Jeepers]

or a y536 prop.

[kssi]

alright thanks for the help guys

[Mich. Maniac]

today with ammo 2300,stock speedo, grim 4255 prop, 43 mph i think it is under prop motor seemed hot but speedo was not that warm.

Sweeet! Put another notch in the belt man. Over 40 is kewl anyway you get it!:banana: Cant wait to see it.

[62 bugzilla]

Mich Maniac I'm putting your set up in my sv and hope to have good speed to post here aswell. Can't wait to test.

[SweetAccord]

Not mine, but wow they haul:

http://youtube.com/watch?v=l814TEnb9yw&feature=related
http://youtube.com/watch?v=DCrzMHF3e3c&feature=related

[TRUNKMUNKY]

http://www.youtube.com/watch?v=2Hm2fYwPPWg

[showstoppercat]

Ammo 2300kv
X-power 100amp ESC
Intellect 2s2p 7.4V 5000Mah
X642 sharpen & balanced
L&R Turn fins
Fortrex101 = 45.5mph (80.5km) will upload video soon
and is rock solid on plane at speed

[ozboater]

sounds good showstopper but i think you ll find that 50 mph = 80 kmph

[showstoppercat]

that's right 45 = 72.4kms:bounce:

[FastVee]

Scuffed bottom

X642

2S2P lipos

40.58mp/h

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

Faster one, http://www.youtube.com/watch?v=1A0SY_LyZho

-lost my gps on this one, so no readings.:huh:

click the "watch in high quality" -thing!