Hyper 7 Brushless conversion Pletty/quark 125b

[scyan]

Hey guys, here's my conversion, including our custom motor mount !!

let me know what you think ! One of the packs is missing, for better pics and since I'm still waiting for it !!

Scy

http://s112.photobucket.com/albums/n178/charancon/

[ElectricThunder]

What a clean conversion! Nice heatsink on the quark as well, and the fan. Looks like a happy little buggy. The quark is probably going to run cooler with the plett in there as opposed to a feigao something or other. What kinda voltage do you plan on running? 4s or 5s lipo?

[scyan]

4s... 2 x 8000mah lipos from maxamps. I already tried them and I ripped the tires off the rims 3 times. Getting tires of regluing them. I just makes no sense at all. I will have to fill the center diff with stronger diff fluid, it keeps sending power to the front, then the back and front and back.. hehe

[ElectricThunder]

Oops....:D Try using duct tape on the insides of the tires to prevent ballooning (which may help your random tires flying off rims situation as well;)).

[scyan]

Yeah, the next ones I mount will have some. These ones dont even deserve it ! Theyre crap ! hehe

[Key]

hey this was the setup I had in mind. Very nice pics and setup!

You've got THE TOP OF THE LINE motor for a 1/8 buggy. Just curious did you opt for the one with a built in fan option?

[tcolesen]

4s... 2 x 8000mah lipos from maxamps. I already tried them and I ripped the tires off the rims 3 times. Getting tires of regluing them. I just makes no sense at all. I will have to fill the center diff with stronger diff fluid, it keeps sending power to the front, then the back and front and back.. hehe

I have the same problem with the power unloading to the front... that's with 10k fluid. What have you been using, and what will you try?

[scyan]

Yep, its the plettenberg hp 220 with fan. Very nice motor. NEVER gets over 110f no matter how hard I run it. And plenty of power too...

I will try to tape the tires do prevent them from balooning so much and will try stronger center diff fluid. Most likely around 100000k to do some wheelies in street form. But 7k or 10k will be what I use for racing. Since the diff action will be useful and in racing we don't gun it the same way anyways...

Scy

[ten69]

Really nice car there!

Which model on the pletty hp 220?
Which is the gearing spur/pinion?

I’m planning on converting my (crap-nitro-engine) Hyper 7 to something more powerful and electric. Therefore I really like threads like this one, which provides me with valuable tips!

[jocktheglide165]

i personally dont like it becuase it looks too fast :-)

[scyan]

It is actually too fast.. haha

I bough 9 to 14t pinions, and the spur is 47 to my knowledge !
The motor is the plettenberg Maxximum hp 220 with fan

[ten69]

Thanks!

But i get kinda confused when I looked att Plettenbergs website.
The following models are listed:

220/20/A2 P6
220/20/A2 S P6
220/20/A3 P6
220/20/A3 S P6
220/20/A4 S P4
220/20/A5 S P4
220/30/A3 S P4
220/30/A4 S P4
220/40/A3 S P4
220/50/A2 S P4
220/50/A3 S P4

Which one is it? :confused:

[scyan]

Its the middle one...

http://www.plettenberg-motoren.com/UK/Motoren/Brushless/220_MAXX/Motor.htm

[ten69]

Ok, thanks!

[SixVi6-Camaro]

Wow.. that is a wicked setup. very clean install! How much does it weigh loaded ready to run?

[scyan]

According to my scale, 9 pounds even... all in it.

Scy

[tripthreat]

How is the controller running for you?

Frank@Quark

[scyan]

not bad, even though i think it thermals wayyy too quickly. I glued 2 huge black heatsinks with arctic silver alumina and used a 60mm cpu fan on top of it. And if not using my 11t pinion, it will overheat within 5 or 6 mins... Before putting the heatsinks on it, it would thermal within 2 or 3 mins. Think I might have a defective unit ?

[glassdoctor]

I was running 10/46 gearing in my 1/8 with a Hacker motor and it would thermal my Mtroniks Truck and MGM120 in about 6 minutes on the track. It was very fast with this gearing... I'm sure higher gears would thermal it quicker too.

I've had much better luck with the Neu motors. The Mtroniks was happier... but I swtiched to the Mamba Max right after I got the Neu1512. I don't have any thermalling at all yet. I have a 125B coming sometime and I think it will like the Neu also. :)

[mtucker]

I am using a motor mount that I got from Scyan to convert my Hyper 7 buggy. I went with a less expensive setup (Feigao 540C 9T and a Mtroniks Truck ESC). It won't be nearly as efficient as Scyan's Plettenberg setup, but I hope by keeping the gearing and weight low (only using one 4C Li-Po) that she will run well.
Matt

[vad]

I received my motor mounts from Scyan, they look great.

[vad]

For those who are having over heating problems, can't you guys increase the center diff gear to the 50T or 52T steel gears from Kyosho or Hotbodies, so that the motor doesn't have to work as hard?

[Rtsbasic]

Its not recommended to use steel gears on regular pinions, as it makes the teeth very sharp, hence most people use the lower teeth count nylon gears.

[mtucker]

I plan on using the stock metal spur gear with metal pinions. The Ofna plastic spur gear won't fit on my Spider center diff. Scyan said he was having good luck with the Century metal pinions from Tower. Once he gets more time on the setup maybe he will give us a update on how the pinion is holding up.
The Tower website says the pinions are hardened, but I didn't see mention of that at the Century web page.
Time will tell I guess. I could see how the narrow teeth of the spur gear could chew up a non-hardened pinion gear.

Matt

[tcolesen]

Kyosho makes a 44t and 46t plastic spur gear that is a direct fit onto Kyosho and Hyper 7/8 differentials:
http://www.rc-monster.com/proddetail.php?prod=KYOIF147&cat=40
http://www.rc-monster.com/proddetail.php?prod=KYOIF148&cat=40
I'm pretty sure that these won't work on the spyder diffs. Maybe you could switch to the standard style so you don't go through a pinion gear every few runs?

[scyan]

It's really funny because I can't chew my 11t pinion, but one run on my 14t, with correct gearmesh and its pretty much destroyed. Don't know what happened there. And I know the mount didnt flex, its only during speed runs in the street ! Not even a hiccup !

Scy

[jamesbernatchez]

scyan......i pm'd you, hopefully you can help :)

[vad]

Forgot to mention to you guys, but check with Jt racing, email addy is

sales@jtracingproducts.com

They sell a center diff adaptor which fits directly to the hyper 7 center diff and it allows this Ofna 51T Spur Gear (http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXBM16&P=7) to fit perfectly. Its made of plastic, so no need to buy the hardened steel pinion gears anymore.

So there are 3 center gears made of plastic which work on the hyper 7
Kyosho 46T and 44T
ofna 51T w/ center diff adaptor from JT racing.

[scyan]

thx for the info Vad !!

James, ygpm !!

Scy

[jamesbernatchez]

Back at ya David!

[glassdoctor]

Come on now... you guys passing notes? No secrets!.. :)

[vad]

Another note on the gearing for the hyper 7 or Kyosho mp series buggies, using a front/rear diff and matching pinion gear from the kyosho ST-R or Hot bodies lighting stadium truck, will allow the gear ratio to change from 3.31 buggy to 4.30 truck gears and the center diff would not have to be altered.

[socalBash]

How does that spur gear in plastic 51T .... mount to a Ho Bao Diff cup? That 51T spur listed is for a Hong Nor car - i believe ... the Ultra series or the titan 2 speed ... neither of which are a ho bao [hyper] vehicle.

Will the 51t spur recommended actually clear the center diff's top plate?

Why do u need to increase the center spur tooth count on a buggy?

I'd say get the LSP hardened helical cut front and rear diff gears and avoid the Kyosho ST-R crown/pinions gears - as there has been repeated challenges and destruction of the current iteration of ST-R front/rear diff gears.

Still not sure why there is a need to lower the buggy gearing? If there is a truggy brushless kit in the works - I understand.

all the best ...

love the work guys .. makes me as a nitro guy jealous!

bring on the truggy conversions :-)

[vad]

Changing the gearing, isnt that one of the changes to make for overheating systems with electrics...?

Socalbash...
The 51T gear attaches to a spur gear adaptor made by JT racing. Its a perfect fit to the spur gear and the diff cup. The center diff mounts have to be raised so the gears clears the chassis. I was not aware of the diff problems Kyosho is having on their trucks.

[socalBash]

Changing the gearing, isnt that one of the changes to make for overheating systems with electrics...? LMAO - at myself ... yeah I spose ? Im a nitro guy - sorry ....

The 51T gear attaches to a spur gear adaptor made by JT racing.



cool ..... link?

I was not aware of the diff problems Kyosho is having on their trucks.

http://www.truggyracers.com/forum/index.php?showforum=117

[jamesbernatchez]

Come on now... you guys passing notes? No secrets!.. :)


Alright....fine...ill tell you. Im sending him out my diff so he can make me a machined motor mount for my LSP-R :D


You happy now ;)

[glassdoctor]

Ha ha... busted.

You don't want a hand cut one? Machined stuff is too nice to actually use it. :D

[scyan]

Yeah, no kidding. Our first prototype stayed on a shelf for a week before I actually put it in my hyper 7 to do the torture tests. I broke many parts, but the mount never moved, not even 0.25mm... hehe And that is only by being bolted to the center diff, not even to the chassis plate...

Scy

[tripthreat]

not bad, even though i think it thermals wayyy too quickly. I glued 2 huge black heatsinks with arctic silver alumina and used a 60mm cpu fan on top of it. And if not using my 11t pinion, it will overheat within 5 or 6 mins... Before putting the heatsinks on it, it would thermal within 2 or 3 mins. Think I might have a defective unit ?

It is probably just that for your setup, an 11t gearing is ideal. Gearing for these car is super critical. If the motor is geared to high, sure, you get a higher speed, but then extra stress is caused to the motor and esc, everytime you excellent from a stop, slow/moderate speed. Your street car has atleast 4-speeds, and you RC car 1. How well would you street car leave a traffic signal in 4th gear? Just some food for thought.

[Muck]

On my Quark, the electronic boards seperated from the heat sink. The FETs are attached to the to the the heat sink with a sticky thermal heat pad. Acually it goes FETs thermal pad aluminum spacer thermal pad then heatsink. Those heat pads can come loose. they can also become contaminated with dirt on the sticky surfaces. IMO those thermal pads will eventually fail in a hot dusty rough enviroment and then it's thermal city. Not to mention the heat has to go through 2 thermal pads before it gets to the heatsink. Here's another thread with more detail. http://www.rc-monster.com/forum/showthread.php?t=3861

[scyan]

Yeah, read your story before. But you never updated it ! I want to know how it goes now that you've re-assembled everything together !

Better, worse ? same ?

Thanks,

Scy

[Muck]

I have yet to try it out. It's been a week since I got it together and I'm hoping to try it out over the this weekend. I have the Mamba Maxx in there right now and it's hard to convince myself that I want to put the Quark back in, but I have a feeling that it should work pretty good.

[scyan]

What motor are you running with your mamba ?

[Muck]

I'm running a Neu 1515 1Y. 12/51 pinion/spur. It felt like I could go up a little on the pinion. I have some aggressive tires on it so I went with the 1515 otherwise you could probably go with a 1512.

[glassdoctor]

The 1512 seems to be plenty for a buggy... it has crazy torque even when geared high.

...the 1515 might stay cooler/easier if you want to run it hard for +30 minutes though. ONE TIME I got the 1512 way too hot but other than that it's been really good.

[scyan]

I can run 35mins with my 11th pinion and no thermal whatsoever... I just wish I could run a 15t pinion all day long on my 46th spur.. hehe

But hey, 45mph is good engouh !

Even more so when you get there in about 2 secs

[glassdoctor]

Yep... my car was "only" running 43mph.... but it's a stupid fast 43mph if you know what I mean.

When a 8lb four wheel drive car is literally ripping the tires off and doing 25mph power slides... it's pretty impressive.

[tcolesen]

I just experienced that today :D. Even though I'm only running an 8L, with my new batteries the thing just rips! WAY too much fun...

[glassdoctor]

8L in a buggy is a lot of motor.... what batteries you got???

[tcolesen]

I'll update the other thread, so this one can stay on topic.

[GTB_USER_ERIK]

Tcolesen
Which thread is that???

[tcolesen]

http://forums.radiocontrolzone.com/showthread.php?t=224788
I haven't gotten around to taking any updated pics, but they will be there sometime soon.

[mtucker]

The 51T gear attaches to a spur gear adaptor made by JT racing. Has anyone ever seen the adaptor made my JT racing? I didn't see anything for Ofna on their web page except for "coming soon" so I e-mailed. Their response was "yes we do sell that item."
Talk about pulling teeth to get info. Since then I have e-mailed twice over the last month asking for price, a picture, a link....... Nothing

I bought a standard Hyper 7 differential (non-Spider, non-Torsen) on Ebay (comes in the complete center housing). I plan on using a plastic spur on it. My Century pinion from Tower is holding up OK with the stock metal Spider spur, but it definitely has some deformation (the teeth are "squished" a bit). I figure eventually it will get too bad to use.
I bought the Ofna spur gear (http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXBM16&P=7) since I was placing an order with Tower. Gearing it correctly won't be a problem but I wonder if it will fit with the center housing and not stick out the bottom of the chassis (it is 51T). I will find out, but if anyone knows for sure let me know so I can get a Kyosho plastic spur on order if there is a problem.

I've been loving the bracket scyan. Is your metal Century pinion still hanging in there?

I am in the process of TLC on my Hyper 7. New bearings and F/R diff housings came yesterday. Those old bearings had a lot of sand in them.... cruch, crunch.

Matt

[scyan]

Yeah, the 11t pinion still holds fine. Although I see its chewed up a bit. It didnt move one bit since I switched from ashpalt to offroad though...

My car is doing very well also. people are very interested in it...

Scy

[Muck]

Gearing it correctly won't be a problem but I wonder if it will fit with the center housing and not stick out the bottom of the chassis (it is 51T). I will find out, but if anyone knows for sure let me know so I can get a Kyosho plastic spur on order if there is a problem.


Matt

The 51t is larger than stock and I had to open up the slot in the chassis with a dremel so that it would fit. It does not hang out below the chassis though.

[mtucker]

The 51t is larger than stock and I had to open up the slot in the chassis with a dremel so that it would fit. It does not hang out below the chassis though. Thank you for the info. I did go ahead and buy the 44 and 46 tooth Kyosho plastic spur gears, but since it looks like the Ofna will work I will have lots of options.
I don't mind opening up the chassis hole to accomodate the wider/thicker plastic spur. I will fire up the Dremel tool. The plastic spur looks to be twice the thickness of the metal gear so it should spread out the force fairly well.

Hopefully my center diff that takes the plastic spurs will arrive late this week.

Scyan, I would love to see some off road video of your Hyper! :wave:

Thanks again,
Matt

[GTB_USER_ERIK]

:teacher: scyan
I myself would like to see more of your car... :teacher:
:wave: Peace and goodwill :wave:

[Casey Clements]

Would the same apply regarding the hyper 7 and the mugen mbx 1/8 scale?

How or where can I get the motor mount?

Wanting to race against the nitro, with a brushless and show them the true power of electric.

thanks for your posts.. looking forward to getting some input regarding set up of a brushless system...

CaseyC

[Casey Clements]

Hey Scyan:
What did you have to do to lighten the shock springs? I would think with the loss of weight, the ride would be too stiff for cornering, and possible problem with your power transfer...

[scyan]

I didnt have to do anything at all ! My weight with everything on board sits at around 8.5 pounds. And its really pretty much to same weight as a nitro but with the weight lower down.

I have 2 8000mah lipo packs sitting in it as well.

thanks,

David

[Casey Clements]

Hey Scyan:
I have a single pack from Max amps. but it is a 6000. guessing that I need one more or have to move up to the 8000mah's
Have been talking to Tekin about their new brushless that is in the works.. What model did you use again?
Thanks
Casey

[scyan]

You could go ahead and order an 2nd 6000mah lipo from maxamps. But keep in mind that the tekin brushless system is NOT going to move that buggy anywhere. You need a motor with a lot more torque. You might be able to use the ESC to power a bigger brushless motor, but don't hold up on it because you think the motor is going to be enough.

I have a plettenberg hp220 maxximum with fan and that is sweet. Expensive, but sweet. The motor itself is more expensive than the brushless system you're looking at. There are also the neu motors that people really seem to like and i'll probably try those next summer.

In the meantime, we're waiting for our CNC to show up, that is going to produce great parts.. hehe

Scy

[Casey Clements]

thanks for the info..under stand that tekin has a motor that they are testing that is for the larger trucks and the 1/8 scale..
How do you wire the li-po's together?

Casey

[Casey Clements]

Scy.. help me out.. who or what is CNC? for great parts?
what is the web site for your motor?

thanks again/

[Casey Clements]

I went back and re-read what you have posted. I found the site....


I have my servo already .. a multi-plex with all metal gears..... I have an extra Novak receiver... but need to find a speed control that will handle the two Li-po's...
Presently I only have a history of running 1/10 electric trucks from associated.. ...

What did you use?

Case

[Casey Clements]

Scyan.. Do you have any pics that you would be willing to share .. give me an idea.. how to balance out the chassie... Set up ....Batteries.. what ever you have !
Cas

[scyan]

Lots of people have had good success with the mamba max esc with the bec disabled.

I personnaly use a quark 125b monster pro ESC with a plettenberg hp220 maxximum with fan motor. And I have 2 maxmamps 8000mah, lipo packs wired to give me a total of 14.8v with 8000mah (about 35-40 mins).

Here are pictures with the motor mount we provide and a short video.

http://s112.photobucket.com/albums/n178/charancon/

You will also notice the the fan mount... some people also use it to mount their esc.

Thanks

Scy

[mtucker]

You will also notice the the fan mount... some people also use it to mount their esc. It also makes a great place to mount a fan right above your motor.

who or what is CNC? Computer Numerical Control They are amazing machines. Some of the mechancial engineers in school would use the CNC machine to make incredible custom made parts for everything from motorcycles to chess sets. My over simplified description is you put your drafting file into a computer that is connected to the CNC machine, it buzzes away at your material and then your part magically appears!
That is a heck of an investment scyan.

Matt

[glassdoctor]

How awesome it would be if we could all have a CNC in the garage... drool...

[schenck77]

I have 2 maxmamps 8000mah, lipo packs wired to give me a total of 14.8v with 8000mah (about 35-40 mins).

Scy

Is that track time or just bashing around? Just trying to get an estimate on how long mine will last once the motor mount and my 8000mah 4s pack shows up. I will be running a feigao 7xl so the motor wont be as efficient as yours but it gives me a ballpark figure.

[scyan]

I've bashed around for about 1h30min... so 30mins track time is, I think, pretty conservative...


Scy

[glassdoctor]

8000mah will last a little over 30min racing for me, with a Neu and conservative gearing. I would think you could manage about 30 with a Feigao if it's not overgeared.

But not all tracks and driving styles are the same... some will eat batteries faster than others. It's very possible to dump 8000mah in less than like 20 min in one example and get 35-40 min in another.

I would guess about 30min is the most you can expect to see. Besides you don't want to dump the lipos every run if possible. Most lipos don't like to be deep discharged... so the extra (unused) capacity still has some value.

[Casey Clements]

Scyan:
How or where do I order the alumin motor mounts for the Muigen mb X5?

Casey

[scyan]

Casey, you got a reply !!

David

[Casey Clements]

Casey, you got a reply !!

David

No David
Did not get a reply. now looking to find gears that will fit the shaft of a Novak but will mesh with the teeth on the center diff gear of the MBX-5.. have you got any ideas???

Casey

[Casey Clements]

David Might be faster to get me at my e-mail of cclements2@msn.com.. if you do not mind... thanks

[Casey Clements]

The pinion gears ... do I have to make my own.. do you know who manufactors something that will work on the center diff but has a small shaft to fit on elect motors?

[scyan]

Casey, get to me at teamfcr@excite.com and let me know what you have, and what you need... we'll talk there. Sorry for the delays, didnt notice you were asking questions here till now.

thanks,

David

[Casey Clements]

Sorry.. I sent an e-mail to that address but it showed up blocked??? Can you send me an e-mail to cclements2@msn.com... or did my e-mail show up with the pictures that I sent???
Thanks David

[glassdoctor]

You can get mod1 pitch pinion gears at starluck-rc.com and rc-monster.com to fit both 5mm and 1/8" shaft motors.

Tower has some 5mm ones made by Century (helicopter company)

[Casey Clements]

Which will fit on the shaft of the Novak HV-Maxx motor.. do you know?

[glassdoctor]

1/8" (3.2mm)

[Casey Clements]

Thanks Glass... have chased it down thru Tower Hobby for the time being and got them coming..
You have been a great help..
C

[Casey Clements]

Want to thank you all.. will get some pics posted asap... The local Machine shop made a great motor mount. will get close up for you guys.. RCP(Ray's Car Parts).....

[Casey Clements]

Scyan or Glass.. I have now the parts and gears.. but when I used a plastic spur gear and a 32 pitch pinion gear, The pinion ate the spur gear within 3 feet of my first run.... What pinion and spur gears do you run with success... Anyone?????

[schenck77]

The pinion should be Mod1 not 32pitch.

[glassdoctor]

Yep.. a 32p has smaller teeth than the mod 1 (it's very close to mod .8)... not good. :)