GRX SAW RiGGER

[grsboats]

I'm quite new to the Fe world(despite my 40 years of model boating) and absolutely fascinated about how fast a decent brushless motor can push a light rigger.For this particular reason I decided to postpone a nitro saw Project and adopt an electric motor to see how fast it could go...and yes it paid off all the time and money spent along the last year.Basically it is a hand laid up c.f.rigger based on some previous boats that I use to compete(heat race and saw) and the building process follows what I've been doing with full size boat accessories for years.Solid molds are made of a mix of premium epoxy resin and light powder quartz..... pics are better than words....This Project is divided in two parts: first one is boat equipped with a Leopard 4092 1390kvmotor (8S) used for most boat running tests and the ready to go version equipped with a Neu 1527 1D( 6S)..... enjoy!.Gill

[grsboats]

The follow up of the entire project at: http://www.grsboats.com.br/?p=6707. Last Sunday(2013-3-16) the boat ran predictably at 196km with no issues.....vÃ*!**deo being edited and will be posted soon.Thanks Gill

[martin]

Gill fantastic results & congratulations, how are you finding the Nanos holding up with more & more runs on them. Thanks Martin.

[BrianW]

looking good Gill.

[grsboats]

Hi Martin thank you for the compliments and what I can say is that my very personal experience with the nano's is ok as I only have tried them on my saw boats i.e. used them for a short periods of discharge. BTW I'm still trying to figured out if the 65C are worth the extra money compared to the 45C.Anyway I think despite this or that brand I've learned that keep them charged and stored at the right levels can make a difference.Brian the MBP collets are incredible good and were a huge improvement on my boats.Thanks Gill

[ManuelW]

VERY interesting topic, will definitely follow that one here.

196km/h is an excellent result, I'd assume that was with the NEU 1527/1D on 6S? What ESC are you using with that setup and may I also ask for the prop?

Definitely looks like you exactly know what you are doing! Keep up the good work :thumbup1:

regards,
Manuel

BTW: The MBP-collets are the best, I do also recommend them to others for around a year now, so far everybody loved those, either for flex shaft or wire drive.

[RaceMechaniX]

Great results Gil,

Those numbers are right up there with Joerg's, Chris' and my numbers for a Q hydro. I will also admit I have seen no difference between the 45c and 65c packs. I have run both back to back with the same set-up and speeds were within 2-3 mph. The battery temp had more of an affect than the C rating.

I will second the MBP couplers, well worth the money. I am hoping one I have ordered makes it here in time for our SAW this weekend, but I think the customs office likes it too.

Looking forward to the video.

Tyler

[grsboats]

I agree with you Tyler definetely no difference between batts.I'm glad I was able to find this coupler at Rocket City.Manuel the esc is a Swordfish 300Plus with data logging that is working great with the Neu 1527 1 D on 6S and the prop is a serie of four 2047 with different mods that is my personal secret(sorry).Next week more races and more challenges with more numbers.Just to tell you that three boats were built and only two still survive with minor injuries :biggrin:.Thanks Gill

[RaceMechaniX]

There is a good reason why SAW boats should be built in triplecates. :wink: Often FE SAW boats don't come back to the beach if all goes wrong.

We'll see how many I return with after this weekend.

95592

[grsboats]

Yep! Good luck and wish you a new record!Gill

[martin]

Does the battery run any cooler with the 65c over the 45c even though their dosnt seem to be any speed advantage. Thanks Martin.

[grsboats]

Correct Martin but this is my personal experience with only Nanotech's maybe other brands show increased performance!There is a very small difference in temp with the 65C(lower) but sincerely nothing that I can say wow! In another thread i read that you use to run 65C...so tell something about them.Thanks Gill

[Chrisg81983]

Nice job gill I am interested in seeing the video.

[Mike Caruso]

I'm quite new to the Fe world(despite my 40 years of model boating) and absolutely fascinated about how fast a decent brushless motor can push a light rigger.For this particular reason I decided to postpone a nitro saw Project and adopt an electric motor to see how fast it could go...and yes it paid off all the time and money spent along the last year.Basically it is a hand laid up c.f.rigger based on some previous boats that I use to compete(heat race and saw) and the building process follows what I've been doing with full size boat accessories for years.Solid molds are made of a mix of premium epoxy resin and light powder quartz..... pics are better than words....This Project is divided in two parts: first one is boat equipped with a Leopard 4092 1390kvmotor (8S) used for most boat running tests and the ready to go version equipped with a Neu 1527 1D( 6S)..... enjoy!.Gill

Gil,
Very nice molds.
Mike

[martin]

Gill ive only used 60c on my Mini Sprint hydro & Mini Monos, for such small motors with low amp draws im more than surprised that i saw a clear increase in speeds. I started with Overlander 3s 2200mah 25c sport packs (Overlander is a good UK Lipo battery), then went to Turnigy Nanos 45c & got a good increase in speed. Then went to an Overlander Extreme Pro 60c & got further noticable increases in top end speed & more pick up speed, im suprised i saw thes increases on such small boats & motors as i would of thought the 45c Nano would of been more than capable of delivering all the power such small motors would of been asking for & going to 60c wouldnt have had such an increase that i saw. Martin.

[grsboats]

Thanks guys..I'm waiting for the videomaker edit the videos and send them to me...soon as they really help me to figured out how the boat handles those high speeds especially at slow motion! Interesting info Martin that makes me wonder that probably with small motors a significant difference can be observed with higher discharges!Next weekend I will get a try to the A-spec batts and let's see what happens.Thanks Gill

[Fluid]

... im suprised i saw thes increases on such small boats & motors as i would of thought the 45c Nano would of been more than capable of delivering all the power such small motors would of been asking for & going to 60c wouldnt have had such an increase that i saw....it should not be such a surprise since LiPo sellers have no real standard for rating the "C" rating. Many are clearly over-rated by the seller, which your testing indicates. Even among top-quality brands I see little difference between 45C and 65C packs, even pulling over 300 amps.




.o

[martin]

Fluid i understand & agree with what your saying about inflated c ratings with certain manufacturers, even allowing for this i would of thought i wouldnt of seen these increases on small 380 size motors as their only rated around 40a.

[grsboats]

Grimracer posted that there is a guy at Aquacraft that daily spend hours and hours testing all sort of lipo batts and the best performance obtained was at 40C.If I'm not mistaken Chris Harris got those faboulus speeds using 45C so...better off be in the safe side of the 45C and save some bucks.I will test the only two 65C packs I have with a Leopard 4082 2000kv and see if there a gain in performance.Gill

[grsboats]

here the brave survivor of the marathon of tests.Three boats built with the same care & attention but for any unknown reason this is the best of the trio!Gill

[kingwrench]

Awesome job kick ass set up

[urbs00007]

any video yet?

[grsboats]

I'm looking forward for these videos too....the videomaker is in the middle of a business trip. Gill

[Chrisg81983]

Me too

[urbs00007]

I'm looking forward for these videos too....the videomaker is in the middle of a business trip. Gill very shortly I will be putting together a video camera mounted on a headband (they make such small cameras now ) and will be getting into video editing to make professional videos.

[grsboats]

The Gopro hero2 is what I use to make good vÃ*!**deos on my surfboard but never tried it on a model.

[grsboats]

96870 This is what I have on my surfboard.

[urbs00007]

The Gopro hero2 is what I use to make good vÃ*!**deos on my surfboard but never tried it on a model.
I would be video-taping from shore so i dont need a camera man. you could mount the go-pro on your head for hands free video taping.

[urbs00007]

Great results Gil,

Those numbers are right up there with Joerg's, Chris' and my numbers for a Q hydro. I will also admit I have seen no difference between the 45c and 65c packs. I have run both back to back with the same set-up and speeds were within 2-3 mph. The battery temp had more of an affect than the C rating.

I will second the MBP couplers, well worth the money. I am hoping one I have ordered makes it here in time for our SAW this weekend, but I think the customs office likes it too.

Looking forward to the video.

Tyler hi tyler question for you if you dont mind. currently running twin 90 size outrigger with neu 2230 1 y 2 6-s in series. would changing over to twin 1527 on 6-s each run faster in your opinion? thanks

[RaceMechaniX]

Start a new thread and I'll respond there.

TG

[urbs00007]

hi gil, looking foward to videos of your boat. i built a homemade rigger with leopard 4082 2000kv 6 -s 5000 ma seaking 180 esc. rtr weight 8 lbs ( high lift design ) ( not for ultimate speed obviously ) couple questions if you dont mind. good starting props for oval racing and do you think i need cooling mod with oval racing setup? also do i need thrust bearing at the motor mount or will motor handle the thrust ? thanks

[grsboats]

Your set up sounds good....same I had with my Jae FE .Octura 1450 44mm(3,5cup) and 46mm cup 3,4 are good starting props for heat racing.You can improve your cooling but using the Leopard water jacket I think you are ok.I'm in the middle of a process making big changes on my boat and videos will be posted soon.Gill

[grsboats]

Personally I don't use trust bearings on my NEU motors now but I think they won't hurt your performance at all.Gill

[urbs00007]

Personally I don't use trust bearings on my NEU motors now but I think they won't hurt your performance at all.Gill thanks for the info looked over your site. you do nice work

[grsboats]

Today in the morning went to the lake for tests and a pushrod failure cause a big take off during acceleration causing the loss of the rear central sponson......and damage to the rudder blade ! Well some work for the next days for our big event in two weeks. Gill

[grsboats]

9762697627

[grsboats]

http://youtu.be/XmgkYeKMdsg

[RaceMechaniX]

That was some awfully rough water to try and go fast in. Which lake in Brazil is the SAW event scheduled?

TG

[grsboats]

I know Tyler.... it was my fifth try even in rough water and boat was handling good(with limited throttle) but the main problem was a pushrod failure in the servo horn...changed for an aluminium one now.This event is hold in a private property with a 1800ft long lake.Btw if you don't mind which esc do you use with the Neu 1527? Thanks Gill

[grsboats]

Ok I only saw your reply on my other tread now.Thanks Gill

[RaceMechaniX]

Good luck in the event, let us know how it runs.

TG

[urbs00007]

good luck!!

[grsboats]

thanks guys will post the fix in the next days.I decided to change the rudder assy for a new one and borrow an Ice 240 from a brother so almost ready to get back to water.Gill

[grsboats]

boat's been fixed: cleaned the botton,made a new Ski that was glued carefully and received three laywers of 48gm fiber cloth per side.Now this area is really strong.Waiting for the ICE 240(bought from OSE) and rudder.In this meantime will make more tests with the heat race version.Gill

[grsboats]

Boat ready to run weights 106,2oz : Leopard 4082 2000kv 6S 45C Nano and T-180 . with new c.f turnfin thanks Gill

[Chrisg81983]

Looks great gil good luck to ya

[urbs00007]

hope it works good for you gil. you showed a cooling mod for the t-180 esc, will it over-heat running the 4082 2000kv in oval rigger set-up?

[grsboats]

Thanks Crisg/Urbs my team is confident to go well.....we will have four boats ...three Fe and one equipped with a Nova 46.To me this mod sounds more efficient compared to the stock water cooling sistem....I know that 6S with this motor/esc will require special attention to the diam of the prop....44-45 mm will keep you in the safe side.Gill

[urbs00007]

hi gil. looking at your build i notice you put esc behind motor. did you extend wires on esc to batteries and to motor? if yes on the batteries do you need to add more capacitors than sent with the stock esc from offshore electric? how often do you grease 3/16 " flex cable? thank you sir. hope you break 130 mph at your race!!

[grsboats]

I only extended the wires to motor no need to batteries and no extra capacitors as I only run this boat on 6S .After every lake session I use to grease my flexshaft ...a mix of light grease and light oil .If you take a look to the strut I have a small nipple that allows me to grease the solid shaft when needed.Thanks and hope so. Gill

[martin]

Gill what strut is that, i take it is 3/16" or is it a modded 1/4" strut & is it lead teflon bushes in their rather than the floating bush. Regards Martin.

[grsboats]

Martin the strut is the Hor 3/16 ver 3 with teflon bushing.On my other boat I have it with the floating bush working also good.Thanks Gill

[RaceMechaniX]

Gill,

How did the event go?

TG

[Brushless55]

very nice looking rigger...

[grsboats]

Well we had a nice event with people from all over the country.Mother's nature definitevely didn't cooperate on saturday when big blocks and gassers went to water.With 4" waves they struggled to keep boats on water and trials were posted poned to today .I went to water in the afternoon but had a very bad luck first with a loosen motor screw destroying the back of my MBP collet that I fixed with a new one.Then after a good first pass of 115mph the flexshaft just broke keeping me out of the competition.At least I could get a try to the new Ice 240 that outperformed my SF 300 with the Neu 1527.I will donload the data and see how everything worked on the boat but it was noticeble that the Castle suits better the 6S configuration on my boat.Now its time to review the Project and have it ready for our next event in august.in this meantime a new boat is under construction and will post the pics soon.Thanks Gill

[Chrisg81983]

Wellllllllllll

[grsboats]

thanks Brushless 55 Gill

[RaceMechaniX]

Congrats on the 115mph speed Gill. That's a pretty good result given the conditions from the sounds of it.
Good to hear the Castle worked well.

TG

[grsboats]

Thanks Tyler and for your advice on the Castle.It worked flawlessly from its start with no issues.I've been running saw with nitro riggers since 2003 but Fe boats are definitevely another chapter.There's much more to learn about them from now on.Gill

[urbs00007]

115 is pretty good gil. why did your flex cable break? loctite motor screws . I was told electric motors dont need loctite. you just proved that fact was wrong. any video on your previous runs yet? you said camera man was on vacation.

[grsboats]

I've been working hard with this Project so that speed is quite good but doesn't make justice for the real potential of this boat.The flexcable broke near the collet maybe because the MBP was seriouly damaged by the motor screw.....and yes I use loctite everywhere but you must have heard of Murphys law .Gill

[urbs00007]

gil, what speed do you think you can obtain with your boat? you are running the 1527 neu on 6-s right? are you running 1/4 inch brass shaft tube ?

[RaceMechaniX]

If you lost a motor screw, there was a strong possibility the motor was not rigid and had enough misalignment through vibration to break the cable. It's happened to me.

[urbs00007]

tyler, its amazing what vibration can do. on a solid shaft setup with my neu 2230 i used octura u-joint (dog bone setup 1/4 " solid shaft) the hardened pin (on the male part ) removed itself from the joint. tried to remove pin from new joint had to hit as hard as i could with a hammer and punch to remove. happened twice gave up on u-joints

[grsboats]

Tyler only one of the four screws came out and mangled the rear of the collet so maybe I forgot to loctite it I don't know.The flexcable failure is unknown as it was a new Hughey shaft but in saw everything is possible.I only use 3/16 shafts on my Fe boats .Yes it is a Neu 1527 2300kv on 6S so at least in theory speeds up to 125mph can be reached.Gill

[grsboats]

Yes it is 1/4 "stuffing box. will post pics of the broken parts.Gill

[Brushless55]

Tyler only one of the four screws came out and mangled the rear of the collet so maybe I forgot to loctite it I don't know.The flexcable failure is unknown as it was a new Hughey shaft but in saw everything is possible.I only use 3/16 shafts on my Fe boats .Yes it is a Neu 1527 2300kv on 6S so at least in theory speeds up to 125mph can be reached.Gill

is that the motor your are using in this rigger?

[grsboats]

Yes Brushless.Gill

[grsboats]

Put the collet on the lathe just to rework it...won't use it but will make a test to see the grip on the rotor in a low kv leopard...changed for an alu pushrod with balls for the rudder .....the first broken flexshaft in months.In the core of the shaft there are some signs of rust. Gill

[urbs00007]

gil, how do you still have the flex cable.? did your water pickup keep it from coming out the strut?

[grsboats]

Yep!

[martin]

Gill what are your thoughts & experience on the prop water pick ups slowing boats down because of interfering with the water leaving the prop. As some say it slows boats down over say rudder pick ups or flush hull pick ups (in monos or cats & not riggers). Martin.

[RaceMechaniX]

Gil,

Did the break in the flexcable occur in the section between the collet and stuffing tube? It could have just snapped from power.......

TG

[grsboats]

Martin all my nitro saw riggers were and are equipped with steelblade rudders and auxiliary water pick ups with great results.For this paticular boat it was inttended to use also a steel blade rudder but I had no time to make one so it feeds the motor water cooling.I don't think there is a loss of speed as they are Always positioned above the shaft line on my boats.The other types i never got a try.Tyler the break occured half na inch up the exit of the stuffing box .When I got this cable it came rusted in the bag so there must be some corrosion inside the core......Gill

[martin]

Gil what position do you have the pick up looking from behind the prop also how far up from the centre of the prop is the pick up & how far behind the prop is the pick up. Thanks Martin.

[grsboats]

Martin better than words I will post pics of the transom of these boats.Gill

[grsboats]

pics Gill

[martin]

Gil many thanks for the pics. Martin.

[grsboats]

You're welcome Martin.

[grsboats]

Ok back to smallwater(our test lake) today for some tests with a new pair of front sponsons and boat is ok turning a small prop.also ran the Ice 240 that worked great till open the boat and see bulged caps.Got in touch with Castle and will send it for repairs plus add a cap bank.

here's data logging:
voltage 25v
ripple 4,51v
current 231,3A
watts 4517w
temp kind high 100,5C
rpm 47261
throttle in 1,973
power 100%
A hours 5.04A

vÃ*!**deo http://youtu.be/umZnKdhaWkw
Gill

[RaceMechaniX]

Gill,

Was 231A the peak current? And was the ripple 4.51V @ peak current? I was seeing 3.1V ripple at same current levels and 4.6V peak ripple at the 400A peak during acceleration. I have had the same blown cap failure with the same combo. It happens. Extra caps on the esc side of the battery connectors will help.

TG

[Brushless55]

Gill,

Was 231A the peak current? And was the ripple 4.51V @ peak current? I was seeing 3.1V ripple at same current levels and 4.6V peak ripple at the 400A peak during acceleration. I have had the same blown cap failure with the same combo. It happens. Extra caps on the esc side of the battery connectors will help.

TG

if its ok, please explain this out a little for us...
or at least me :blink:

[Chrisg81983]

Boat looks great gill

[grsboats]

Tyler yes peak with a small prop 231,3 so I'm afraid to try my best props with this esc (47mm) where probably I will have higher peak as yours.Anyway esc was sent for epairs and will add an extra cap bank.Brushless let's explain by parts:peak current is the amperage our set ups are drawing during a hard run and ripple is the change in voltage that is measured each time our motors are pulsed......hope this helps you.Thanks Chris hope to get better vÃ*!**deos soon as this one was taken with a GOPRO .Gill

[RaceMechaniX]

Gill,

My 400A peak was with a ~47mm prop so I would expect to see similar conditions with your rigger. I am stating the obvious here but warm batteries, very solid battery and motor connections along with short wires all around helped reduce the ripple and cap failures. I have not failed a 240 ICE recently after the careful prep.

TG

[grsboats]

Tyler what cap bank do you recommend as I see some diferent models here at Ose.I liked the Castle as I can keep it near the esc...don't have much room for a big one.Thanks Gill

[RaceMechaniX]

Gill,

I have been buying the Fighercat racing cap boards and adding my own caps. This way I can use the maximum capacity and appropriate voltage level for a specific application. For 6S I use 35V caps and for 8S-10S I use 50V caps. I also made some for P and N2 with lower voltage caps that require less space or have more capacitance for the same volume.

First pic shows the assembled cap banks, two 35V and one 50V assemblies using Nichicon caps.

Second pic is a MGM28026 with a 35V cap bank on 8AWG wire for remote mounting.

TG

9948999490

[grsboats]

Tyler is it better use 4 or 5 caps with my setup Neu 1527Castle 240? I can get the Castle cap bank and add one more. Thanks again Gill

[RaceMechaniX]

Gill,

It is more dependent on the total capacitance. I don't know what the total uF of the Castle system is, but the cap banks I soldered up with 35V caps are 7500uF and with 50V caps I have 5000uF. I think this is quite a bit more than the castle unit. I also don't know the quality of the Castle Cap bank, they look like Rubycon copies.

TG

[Chrisg81983]

I think the castle caps are panasonic but not 100 % on that. I came across a bunch of 63/1000's made by panasonic and they are identical in looks to the castle ones

[Chrisg81983]

I think the hv castle cap bank has four 220uf / 50v caps on it

[grsboats]

Thanks Tyler and Chris will get some good ones and make my own cap board.Gill

[grsboats]

Ok went to water to test the boat with A-spec 6S 65-130C batteries and finally can confirm a superiority over the nano 45-90C and nano 65-130C.there is a noticeable increase on power end(watts),lower temp on esc/motor/batts .Gill

[urbs00007]

thanks for the information gil. are you running the neu 1527 and if so how would you compare to leopard 4082? like a volkswagen beetle to a corvette?

[martin]

Gill this is good to hear as i ordered a set of A Specs 1.5 weeks ago so should arrive soon, i only ordered 1 pair just in case they did not perform so well.

[Brushless55]

Ok went to water to test the boat with A-spec 6S 65-130C batteries and finally can confirm a superiority over the nano 45-90C and nano 65-130C.there is a noticeable increase on power end(watts),lower temp on esc/motor/batts .Gill

I am hearing and seeing testing done with the A-SPec packs and they are some of the best we can buy for the money right now... :thumbup1:

[grsboats]

Martin I also bought only two packs of A-spec and will get more as they by far outperformed my other nanos.There is an increase of 37watts on the datalogging with the same set up and temps lowered 11C.Urbs you can't compare apples to oranges but any good motor with the right set up can be very competitive.Brushless I agree that these packs are awesome for the bucks we pay for....but time will tell us the truth.Gill

[ktmakias300]

you are right my friend...time will tell us the truth!!!
Martin I also bought only two packs of A-spec and will get more as they by far outperformed my other nanos.There is an increase of 37watts on the datalogging with the same set up and temps lowered 11C.Urbs you can't compare apples to oranges but any good motor with the right set up can be very competitive.Brushless I agree that these packs are awesome for the bucks we pay for....but time will tell us the truth.Gill

[grsboats]

any experience with these packs KTMAIAS? Thanks Gill

[ktmakias300]

gill i have tried the nanotech 65-130c and i think was ok...but i tried the dinogy 65-130c and i was very happy with the result!!! i dont know!!! small differences and to be 100% sure must have in the tests the same condition(water,wind)... my opinion is this batteries are good !!!! speed control technology is very back and remember speed control manage the power suply! max speed = many amps if a speed control can manage 360 amps continous then the max speed its going to be very big!!!! good esc= many dollars!

i dont know my friend if i am totally right but this is my opinion. gill i love that rigger of yours...good luck my friend!
thanks nikos

[grsboats]

Ktmakias thanks for your reply and agree that time will show the progress of this tecnology.Btw Tyler correctly stated that top speed is the result of many factors like high discharge batteries,right inside temperature,well designed boat,top quality motor and mainly the use of the right prop for your set up.I must confess that I had a wrong impression of the real potential of Fe models untill get a try to a Fe rigger more less year ago and today I'm completely involved with this class even knowing there is a long way to learn all technical aspects involved here.Anyway I'm glad to have joined this great space wth so many nice guys ready to trade and seek their knowledgment that sometimes all those info made me crazy.I hate to learn burning things but this is part of our hobby.Next step will test the boat with a good cap bank (just waiting Castle retur it to me) and see the effectiveness of the A-spec batt.Cheers Gill

[grsboats]

I would like to state that Castle creations repaired my esc and returned it in a record time(five days)...its quite a trip from São Paulo to Kansas ,knowing i'm in a hurry for my next race so a great customer support that deserves my respect for their acomplishment. Gill

[RaceMechaniX]

Holy smokes! That is a record.

[Chrisg81983]

Castle has been great to me over the years. They never gave me a problem once.

[grsboats]

Yup Tyler I was surprised with their support so from now on I will pay more atenttion to details and get smoke only from my nitro riggers lol.Chrisg this is the well known process of living and learning ..takes time!Gill

[urbs00007]

hi Gil, how is your straight-a-way electric rigger coming along? would like to see some more video! I have a big favor to ask. could you find out how much the fuel weighs for a .45 outrigger heat race set-up? doing some calculations on my electric 4082 set-up. by the way 1600 kv is working much better than 2000 kv. my new boat weighs 7-1/2 lbs and runs nice and cool with abc 45x68 or oct 1450. still going to cut some off the oct prop to get the revs up a little. thanks gil

[urbs00007]

going to try oct 1445 today

[grsboats]

45 riggers usually carry 14/15 oz tank for oval race.You can also try ABC H-7 with the 1600 motor.My saw rigger received some mods(new sponson's pads),a big ETTI cap bank and will be tested soon..weather here is misarable..lot of rain and temps around 13C (cold for a tropic guy)...and all the mess you can watch on tv. with all kind of strikes.

[grsboats]

Today went to the lake for more prop/batts tests and just received the first vÃ*!**deo.Esc's issues were definitevely solved with the extra cap bank...ran 6 packs consecutively and temps were around 45 C degrees with motor esc/batts. I really liked the A-Spec batts and can say they are in the same level with Dinogy's. Gill

http://youtu.be/q74UIO3B4ms

[Brushless55]

Today went to the lake for more prop/batts tests and just received the first vÃ*!**deo.Esc's issues were definitevely solved with the extra cap bank...ran 6 packs consecutively and temps were around 45 C degrees with motor esc/batts. I really liked the A-Spec batts and can say they are in the same level with Dinogy's. Gill

http://youtu.be/q74UIO3B4ms

Looks great man!

[RaceMechaniX]

OK Gill, You ready to book a ticket yet and come up north to LA or Elizabeth city to run later this year? That pond is getting too small for you!

TG

[grsboats]

Tyler this is the only lake where we all can make tests with the approval of the landlord.I do know that is short but we 've having lot of fun and the saw Fe class is growing up fast here.I would love to attend any race in the USA but job tasks do not allow me to be absent even for few days but who knows next year when things tend to settle down.Just to comment the extra cap bank IMO is the solution for the Caste esc's despite motors or batts.I will download my data and post here soon Thanks guys.Gill

[grsboats]

here's my datalogging results:
ripple: 2,50V
current: 282,3A
watts: 5386w
rpm: 51.819 rpm
throthle: 100%
temp: 56,7C