RE: NQD High Wind 757 upgrade

RE: NQD High Wind 757 upgrade
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RE: NQD High Wind 757 upgrade - 11/12/2005 9:21:07 PM

rooski

Posts: 475
Joined: 6/27/2005
From: , SC, USA
Status: offline

You can get a "fast" charger pretty inexpensively. With one of these babies...you can recharge an 1800 mah nicd in about 30 minutes. If you decide to stay in the hobby and get or make a real FE boat, you will want a charger that can charge 2 packs at once (up to 14 cells) like the Dynamite Twin Peak charger or....if you really want to go for it...get a Triton charger that can handle like 30 cells at once.

(in reply to Clint_S)

Post #: 26

RE: NQD High Wind 757 upgrade - 12/2/2005 3:24:32 PM

SoMoney

Posts: 67
Joined: 8/24/2004
From: San Diego, CA, USA
Status: offline

Okay this is interesting. You obviously burnt the motors out here but did you install a rudder some place OR were you still using the VECTOR THRUST ESC that comes with these NQD boats?!

IF So you found a cheap sollution for most NQD owners..
1. Replace the motors with some that can handle the 14v and your done.
(untill the esc burns out)
or
2. Replace with 2x480's as described earlier and toss in an 11v LiPoly 2000+ cell
(untill the esc burns out)

quote:

ORIGINAL: Jkeith247

So, I was bored the other day and found a couple of extra battery connectors in my tool box. With carful thought decided to run 12 cells (two six cell packs 7.2V 30A 3300mah each). OMG! The boat is fast with 14.4 volts. Motors got a little hot, but to be expected. I know I will probably burn the motors out pretty fast running 14.4, but the motors were 10 bucks a piece. The motors are rated to handle 7.2 to 9.6 volts. So, if I am running two motors in series, with two batteries connected in series, what resistance will the dc motors provide, both motors arent recieving 14.4 volts, right?

(in reply to Jkeith247)

Post #: 27

RE: NQD High Wind 757 upgrade - 12/2/2005 5:56:29 PM

itmark

Posts: 1
Joined: 12/2/2005
From: , UNITED KINGDOM
Status: offline

I just bought the NQD 757 cat off ebay for £28 UK. It only goes at walking pace and never planes. Did the tiwn 480's make it plane and would you say at jogging / running speed?

(in reply to Nocturnal)

Post #: 28

RE: NQD High Wind 757 upgrade - 12/2/2005 9:56:23 PM

pompebled

Posts: 1814
Joined: 1/31/2004
From: Sneek, NETHERLANDS
Status: online

If you've just bought it and have run it only a few times, the Nicad battery will not be up to speed yet.
It can take up to eight charge/discharge cycles, before full power is available.

The NQD boats I've seen, all plane with the standard motors.

Regards, Jan.

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Boaters are nice people.

(in reply to itmark)

Post #: 29

RE: NQD High Wind 757 upgrade - 1/9/2006 5:25:16 AM

gromitvt10

Posts: 136
Joined: 2/19/2002
From: lexington park, MD, USA
Status: offline

HI,
I got this boat off ebay and what a disappointment

first of all the ebay ad said that it went in reverse anf did 15-25 mph. unless i can't figure it out, it does not go in reverse and tops out at about 5 mph, and the battery lasted about 5 minutes before dying. OK, i'm done venting, for now

I want to put a 9.6v battery in it, can the 380 motors handle that??? thanx

Kyle

(in reply to Clint_S)

Post #: 30

RE: NQD High Wind 757 upgrade - 1/9/2006 11:48:41 AM

bwrk3

Posts: 7
Joined: 10/23/2005
From: elkton, MD, USA
Status: offline

no dont do that you will melt the hull try biger moters then biger batery if the moters tell you to

(in reply to gromitvt10)

Post #: 31

RE: NQD High Wind 757 upgrade - 5/3/2006 2:44:57 AM

speed kills

Posts: 85
Joined: 5/3/2006
From: , AUSTRALIA
Status: offline

u know u could just get 1 of them koyisio dolphin out boards which are like a 700 type and that wouldnt even be touching the hull

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Post #: 32

RE: NQD High Wind 757 upgrade - 5/3/2006 9:59:44 AM

Auslide

Posts: 1417
Joined: 3/26/2006
From: Down under, AUSTRALIA
Status: offline

I must have got a Good one.. Mine Moves..
It Doesnt Plane though, it cavitates BADLY at top speed and High Speed turning...

What can you do to help cancel Cavititation??

http://media.putfile.com/Under-the-Bridge-64

< Message edited by magnat -- 5/3/2006 10:01:12 AM >

(in reply to speed kills)

Post #: 33

RE: NQD High Wind 757 upgrade - 5/3/2006 10:50:51 AM

speed kills

Posts: 85
Joined: 5/3/2006
From: , AUSTRALIA
Status: offline

mine fine and it doesnt do a wamping thing, hey do u rekon if i take the 38s out and get a 550 outboard do u rekon it il run well

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(in reply to Auslide)

Post #: 34

RE: NQD High Wind 757 upgrade - 5/4/2006 2:23:27 AM

kyrus

Posts: 35
Joined: 2/26/2006
From: Charlotte , NC, USA
Status: offline

magnat,
you'll need to find a way to reposition the battery more towards the center than its current position. It may only take 2-3 inches. I imagine you are running 7 cells instead of the stock 6 cells. If so, you'll notice with the increase in power- the weight has increased as well. I had the same problem and was able to correct it by what I've suggested. I had a different model than you, but the basic function of the ebay boats is the same.

(in reply to speed kills)

Post #: 35

RE: NQD High Wind 757 upgrade - 5/4/2006 6:08:14 AM

Auslide

Posts: 1417
Joined: 3/26/2006
From: Down under, AUSTRALIA
Status: offline

Thanks..

I am Still using a 7.2 Volt Battery, Just with a larger Mah Rating.. a Traxxas 2700mah Nimh. The Run time has trippled, speed initially was a lot quicker.

So I am just not sure on How Far Forward?
Level with the Motors?

I have added floatation up the front so If I over Do it it Should be OK..
I will add about 150Grams of Lead weight in between the Motors and See if it doesnt Help..

I will keep you informed..

(in reply to kyrus)

Post #: 36

RE: NQD High Wind 757 upgrade - 5/4/2006 8:36:43 AM

speed kills

Posts: 85
Joined: 5/3/2006
From: , AUSTRALIA
Status: offline

YES hey some guy who i was chatting 2 from gosford said if you were to put a koysho dolphin 2 outboard you would need a new servo sweet i found one if i upgrade my nqd will sht on all of the skock nqds

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Nitro in my veins

(in reply to Auslide)

Post #: 37

RE: NQD High Wind 757 upgrade - 5/4/2006 1:37:16 PM

Auslide

Posts: 1417
Joined: 3/26/2006
From: Down under, AUSTRALIA
Status: offline

Of Course, if you replace the NQD Gear , you will have a Sweet Boat.. Its not the Hull that is at faullt with these boats, its the Electronics that hold them back...

I still like my Boat the way it is, I mean for the $70 I paid for it, It keeps me happy.. I must say though, mine at least feels like it goes faster then a running pace.. Hell I know it is faster then I can run..

I seemed to have at least got the Weight issue kind of sorted out, it still bounces at full speed...
It is only bouncing on tight turns at Speed.
I like its rather narrow turning circle..
I am just waiting for a friend to join me with his CEN Baja Electric.. so we can see just how different the boats are..
I know he will nail me with Speed but I am Not sure about Turning Circle...

It is Like it wants to Plane at High speed, but just doesnt Have the Speed to get it out of the Water..
I will try and reposition the Battery to in between the Motors and see if that does not help...

(in reply to speed kills)

Post #: 38

RE: NQD High Wind 757 upgrade - 5/4/2006 3:01:45 PM

kyrus

Posts: 35
Joined: 2/26/2006
From: Charlotte , NC, USA
Status: offline

I added velcro on top of the electronics box and positioned the battery to where 1/2 was on the box and half was suspended in air over the motors. Again I had the problems when I switch from a stock battery to a 7 cell 3000 Nimh. Adding a weight in the front will acheive a similiar result but perhaps slow the boat down. My hull is different as well but I'm certain the battery reposition will help. i 'd not want the battery too close to the motor as heat could cause damage to your back. if you try between the motors just make sure u have clearance to where the battery is not touching.

< Message edited by kyrus -- 5/4/2006 3:06:10 PM >

(in reply to Auslide)

Post #: 39

RE: NQD High Wind 757 upgrade - 5/5/2006 1:31:11 AM