My Crt.5
 

Got this truck from starscream today as a roller and finsihed putting it together a little while ago. Ran a pack thru it and everything seems to be ok. I am running a Plett Maxximum on a maxamps 4200 3s pack (3s2p 2100 cells). The Mamba max seems to be doing ok, after 30mins of mixed bashing everything was barely warm. Truck is geared 13/46, so about 35mph with stock tires. I may gear it up to 40 or so, but I wanted to test my home made hardened pinion.

What I did was took the 1st 13t gear pinion of an emaxx input shaft. This gear appears to be factory hardened as it was very hard to drill. I took the torch to it and heated it up till it was uniform red and let it cool. That softened it up enough to drill and tap easily for the set screw. I used a m4 thread screw with a 2mm hex, std size for larger pinions. After I drilled and tapped it, I heated it up to red again and then quenched it in 10w30 oil. After the run it had barely worn the black off the gear so I guess it is ok. I will run it for a while and see how long it lasts. The mesh is very smooth, so the gear must have the correct pressure angle to it. It is also reasonably quite too.

I am very happy with the performance and would recommend this combo to anyone, much better than a feigao l can and the same esc and batts.

Heres the pics, with the pinion fresh out of the oil.

http://i206.photobucket.com/albums/b...p/DSCF1802.jpg
http://i206.photobucket.com/albums/b...p/DSCF1803.jpg
http://i206.photobucket.com/albums/b...p/DSCF1804.jpg
http://i206.photobucket.com/albums/b...p/DSCF1805.jpg
http://i206.photobucket.com/albums/b...p/DSCF1806.jpg

Nice! I would kill to get a Maxximum to put in my Revo...

It is a nice motor, was wondering if you can order it with a 5mm shaft? If so it would be great. I know that they offer a few different kv choices, mine is a 3100kv which is the std (I think?).

Nice! I had the same idea with the 13t gear from the e-maxx trans. I was able to drill it out, but not tap it. I guess I have to heat it up and let it cool slow, then heat it up and quench it really quick?

Bye:mdr:

I'm looking for a 3S motor to run on my CRT.5, but that Plettenberg looks expensive and heavy. Is there someone in the US that sells them and has info on a web site?

lincpimp I like the DIY blacksmithing. It will be interesting to see how it holds up!!
Regards
ICUBoy

GO-RIDE- icarerc.com has plettenbergs, they are in cananada, no us distributors I know of

Linc- ANOTHER sweet ride, are you up to 50 yet?

???
 

As far as I can see, icarerc.com is a health insurance site. I am looking for help with a busted plettenberg, if there's someone local, I'd really like to know.

All I did was heat it up to red/orange and let it cool by itself and it drilled and tapped easily. I always chuck my taps in the drill press and use it to keep the tap straight as it threads into the material. To harden the gear, I heated it up till it was orange/red and dropped it into a can full of oil and let it fully cool. I just did the same thing with the 18t gear as well, I will have to try it out in something else.

I ran the crt.5 again for another 30min and the gear seems to be holding up fine. Looks like it will last, but I will update after a few more packs.

HAHA, getting there, actually I need to sell off a few as I would like to get a baja ss kit, looks badass!

I also adjusted my MM half way thru the second run. I moved the start power from low to normal. Wow what a difference. The plett starts very smoothly now, almost as good as a sensored motor. I have to hand it to CC and their pc interface, really easy to use and it does make a difference!

its icare-rc.com :lol:

Thanks for the link info. Unfortunately, $250 for a motor is a bit steep for this project.

agreed.

Another great looking truck. I have been itching to get a CRT.5 for a while now.....

I would definately recommend the ext chassis from mike. I had a stock crt.5 when they first came out and did not like it, just too small. With the ext chassis and truck wheels and tires it is great. Handles well and has enough space on the chassis for the gear.

Stop thinking, and go buy one! Now!:party::na::whistle::lol:


Looks great linc, I thought you were going to do a HV set up?

isnt that jutst a few too many smileys? NO! lol :lol::angel::yipi::rules::intello::yes::rofl::wink ::party::whistle:

Thought about it, but realized that I had the plett laying around and had the 3s pack that fit perfectly with the stock clamp. I have a brand new ls10 still in the box that I may try a hy setup with:wink:

Also looking to do a hv setup in my hyper 7 buggy. How does 9s 2500mah 18c lipos thru a 1300kv aveox sound. Maybe try the great planes hv60 esc and see how that goes. Not sure if i have the room for the batts, but I can check tomorrow.

I used more.... lol

I dont want to hi jack linc's thread though......

Man, after all of the BS that I have typed in other's threads! Go ahead, hijack all you want, just make sure that it is funny!!:wink:

LOL :rofl::rofl: Thats your job, its my job to to :lol: :na:

I agree! Sounds like a awesome set up! I still need to buy a set up for mine:mdr:

Wow, 9s buggy? All of your cars must run ice cold huh?

Well, I have had some hot setups. My first tmaxx conversion had a 9l on 16 nimh cells, I can't belive that the 9920 held up! I had no idea what I was doing then, kv what, huh?!

I have done at least 20 conversions, and have either used or setup 100 different brushless systems. So I have had quite a learning experience! HV is the way to go, it just runs so much better!

Yeah, Im sure it does, but for a kid like me, its a really nice dent for the wallet

I understand, but keep in mind that you can use 2100mah or so cells to do hv. My 2200 mah cells are from Uninted hobbies and cost about 110 shipped for 2 5s packs. 2200 10s lipo would be capable of more than 2hp. That is plenty for a buggy or lighter MT. Use the great planes 60hv esc and a pixstix adapter with the stock mech brakes. Not as expensive as a neu/mgm combo, and will work just as well. A 20l feigao motor will most likely work well on 10s. The higher voltage smooths out the current spiks, and everything runs cooler on more voltage. Be careful though, 10s can be dangerous, but no worse than charging lipos.

But then how is run time? Fast charge time huh?

10s 2200 lipo would have the same runtime as a 5s 4400. But since everything stays cooler and the amp draw is less the runtimes is better than you would think.

Nice setup linc.
The Plett looks great!

I only run HV in my 1/8th scales and MT's. 30 + volts seems dangerous but its really not any more dangerous than 4S lipo's. If you get smacked by a dead short, its gonna hurt no matter if its 4S or 10S. I'd rather run an 18C 10S setup than a 25C 4S setup any day of the week.
I'm running 8S A123's on my MBX5T, 8ight, and Revo and the temps never break 100F and they are beasts on the track...

Sorry for the rant, I'm just having withdrawls from the weekend.

Hmmm, How long will it run for? Like 25 mins?

Yep, that 8s a123 must be a good setup! I love rants, keep em comming!

Love the .5 BTW! Great vehicle, I may put heavier springs on the rear, are the grey springs you included heavier?

Exactly,
In theory, you should have the same run time between the two, but in my experience, the higher voltage equivalent always runs longer. The higher voltage reduces the current and heat which in turn equates to less wasted energy and more runtime.

I don't beleive the charge time between the two are any different though.

Sure, My 5s 4400 emaxx running a feigao 15l does around 35 mins.

The higher voltage just works better, and it helps the cheaper motors too. A 9l feigao on 3s is not that great in an emaxx, but a 15l feigao on 5-6s works great and stays cool too.

Charge time is no different.

The grey springs are the stock ones.....


Hmmm, something I never thought about with a HV set up, so I guess its just fitting it on the car thats hard huh? A place speedo is cheap, mech brakes is cheap because I have tons of servos, and lipos cost the same, along with the motor

Something to think about:mdr:

The maxamps 2100 lipos are good to use as they can usually fit on the opposite side to the motor in an 1/8 buggy, 2 5s 2100 packs are longer than a std pack, but about the same weight and cost. Plus you can use a cheaper motor, like a 12xl, or 20l feigao. They work much better than their higher kv cousins.

Im not into max amps

How about flight power, poly quest? Enerland cells..

The grey springs are soft, blue are medium and white are hard.
I'd try using heavier oil like 60wt in the front and 45wt in the rear.

I get 15min with my 8S A123 setup with a NEU 1515/2Y and the HV110/pistix
I just wish there were an affordable car esc that could handle it.....

Enerland cells cost a little more but are IMO are worth every extra penny. I don't own any of these but from what I hear they perform very well and when it comes to quality, you get what you pay for.

A hv car esc would be nice, hell I'd be happy with a forward only esc, that could work with a wheel radio and have a great startup. Oh and pc programability. I do not mind mech brakes. I wonder if the new castle hydra hv controller has decent startup. I programmed a hydra 120, but never saw it run. I may have to give one a try.

I think they are also...:mdr::mdr:

If you want a Maxximum with a 5mm shaft, you have to order the Maxximum with fan. Here you see the the Maxximum with fan next to your Maxximum

http://www.plettenberg-motoren.com/Motoren/Maxx.gif http://www.plettenberg-motoren.com/M...Maxxi_Gebl.gif

The kv of both the Maxximum is 3000, but if you contact Plettenberg, you can get also a 2200kv version. :smile: