Hacker Maxx Build
 

Ok, so I have pieced together a new Emaxx. Got the diffs, center chassis, tranny and steering from Sike (thanks buddy!). I had the front and rear suspension sets hanging around. Found some traxxas wheels and bowtie tires in the parts box. Had to buy a few things, mainly a pair of steering servos. I went with a pair of futaba 3050 servos. At 6.3v from the cc bec they are super strong and fast.

Motor choice is a Hacker C50 15l? with a quark 125b. I put the question mark behind the motor as I am not sure that it really is a 15l, but it must be close to the 1600kv rating. Power comes from a pair of 2200 20c 5s lipos from UH.

Gave it a trial run with 20/48 gearing (mod1) tonight. Wow, at around 30mph full throttle results in killer wheelies. I ran it hard for about 15mins, and think that slightly lower gearing would be good. It is too fast, maybe 45 mph, so I figure 20/52 would be ideal. This motor has alot of power. Kind of like a feigao 7xl that spins up faster. The slipper is getting a workout! Without the wheely bar it will do a back flip from a stand still, and land on the tires. I have to say that this is the most violent rc I own at the moment, great fun.

I can definately say that the hacker motor is much more powerful than the feigao equivalent. Can you believe that i have a 13l on 5s in my LS10! That truck is geared for about 50mph and even then it does not really load the motor. I have an older emaxx with a feigao 15l that I run on 5s thru a 9920. It is only 2wd and does not have anywhere near the power of this setup. I can only imagine what a hacker c50 xl motor can do. Guess it is time to search one out!

Pics will be put up tomorrow as the camera is out of reach!

Yea, the hacker motors are crazy. I only have the little C40 motors and they are mean little suckers on 5s and 6s A123.

What do you run the c40 motors in?

Wow Linc! Yes Pictures please! :yes:

Ladies and Gentlemen. Can we please take up a collection for Linc a Video Camera? He spent all his money on RC. :lol:

I run them in my all purpose rustler. Soon I'll stick them in my prostock dragsters. I run the 12T 3500kv and 8L 3750kv hackers.

http://i189.photobucket.com/albums/z...r/DSCF2144.jpg
http://i189.photobucket.com/albums/z...r/DSCF2142.jpg
http://i189.photobucket.com/albums/z...r/DSCF2141.jpg
http://i189.photobucket.com/albums/z...Rustler/ab.jpg

Sounds like a great project. And pictures are definitely a must. :smile: I also sent you a PM about some Hacker motors btw. Hopefully they are what you are looking for...

If I had a vid camera I would shoot some footage of all of my rc stuff. I think everyone would really wonder about me then. To put it another way, I put all of my various brushless motors in a box. It weighs about 10 lbs now. I also have a 600 sq/ft room dedicated to rc.

Pics will be up tomorrow, looks just like a new emaxx with a purple finned motor and a quark 125. Now my use of a lsp body may be a first? I picked up a few of those bodies for 12 bucks a piece, so they will be on alot of my trucks.

It is funny, I own an auto paint and body shop and I have custom painted dozens of cars. And I do not care about painting rc bodies. I even try to buy prepainted bodies if the price is right. Kind of funny and ironic!

Snellemin, the rustler looks good, and I am sure those c40 motors kick azz too! They look like the best size (power to weight) motor for a lighter 2wd vehicle.

Ummmm...........Where did you get the 48 tooth Mod 1 spur?

Hey Sike, figured you might ask that question.

Here is the selection of MGT spur gears: Mod1 spurs

All you have to do is slightly drill out the center hole to fit the traxxas slipper bearing, and drill out 3 of the small holes to fit over the bolt bosses on the slipper hub. It is wise to use small washers on the 3 allen head screws that hold the gear on. I will snap a pic of the gear when I swap the 52t in.

I have given up on 32p for the larger vehicles, mod1 is so much more forgiving than 32p.

Thanks for the info! :yes:

I'm with you on the 32p gears. I've ran several packs through this E maxx with the mod 1 gears. Running hard, and they show NO WEAR.

If these were 32p gears, no telling what they would look like.

I've never had any luck pushing any kind of real power level through 32p gears.

32p is good for pedes and other 2wd trucks.

That is about it.

I really want to go back to the shop and play with the emaxx! I will charge the lipos again and see how much they take. I ran it for about 15mins and it did not seem to be losing voltage at all.

I wanted to play with my E maxx today, but we had some major storms moving through the area. Big winds too. It blew a couple of Semi trucks off the interstate. Big Nasty wreck close to town that blocked both the South bound lanes. They were rerouting traffic and had things backed up for miles. A little chaotic there for awhile.

You like those 2200 packs don't ya? Hmmmmm.......4400mah 20C at 5S. That should give you about 20 to 25 minutes hard runtime I would think. I'm sure that Hacker is a hungry feller though.

What's your motor temp looking like?

That Lipo setup should be good for 88 amps continous. That's some pretty good power actually. :yes:

These packs are looking good, cost 100 bucks for the pair. The hacker was running a little warm for my tastes, but the body did not have any cooling holes, and the gearing was a bit much, in my opinion. I have trimmed the body and will lower the gearing and give it a good run tomorrow.

Heres some pics!
 

Ok, the moment you have all been waiting for:

http://i206.photobucket.com/albums/b...p/DSCF1856.jpg
http://i206.photobucket.com/albums/b...p/DSCF1857.jpg
http://i206.photobucket.com/albums/b...p/DSCF1858.jpg

I will have some body pics up as soon as I finish the sticker application. The big scratch on the motor is from the riduclous cart wheels it does without the wheely bar! Sucks, but I guess it gives the motor more character!

wow. that looks great. i wish i wasnt 14, and had plenty of $$ to build a bunch of em... once my dad finally buys me my xmas present (mill) then i will be in biz! ps. i found a place that sells good quality alum for real cheap. bouhgt a piece of 6061 24x4x1/4 for $10 yesterday..... these will be the chassis stiffeners on the reggy. how do i manage to have sold all my BL and have brushed and nitro now? :whip:

Looks good man. Whats up with the scuff marks on the motor?

I like to do my test runs without a body (I am a dumbass). It had alot more power than I was expecting from a l can motor!

There might be XL hackers on sale at the offshoreelectric forum. I haven't checked lately.

I will have to take a look. There are a ton of brushless motors for sale on rc groups. A bunch of stuff and the prices are not too bad on most of it.

Is that were you get your 10lbs box of motors from? hehehehhe

let me know how the 37 kontronik twister works out. Seems to be just as good as the hackers.....in chrome.

Not sure if the twist is as good as a c40 hacker, but we will see. I may try it out in a pede on 3s and see how it does. Couldn't pass up a deal! I actually got most of my motors from ebay, new and used.

Here's a link that shows alot off motors with their corresponding kV and resistance. The C series hackers are on there as well.

Changed the gearing to 20/52 and ran the truck for about 15min. Top speed was 42mph, leading me to belive the motor is a 14l, or possibly a 13l. The 14l has a kv of 1725, which works out to slightly over 42mph on Brian's calc.

Temps were good, after 15mins, batterys were 70f, esc, 90f and motor was 150f. Ambient was about 65f. I would like to gear down slightly, maybe a 19t pinion. But since I have an 18t pinion and a 50t spur, that should be perfect gearing for this setup.

I am very happy with the hacker motor, just bought 3 more used hackers and have my eye on a few more. And I won a new aveox for the xxx-cr and my sidewinder came in. So I have a bunch of testing to do!

And my 14xl came in for the savage build too. And the hv-tmaxx is gathering dust. And the tekno clutch adapter came in for the yusa on road car. Plus my old emaxx needs some battery tray work to fit the new 5s lipos. And the terror needs motor mount reinforcements too. And the slipperential revo needs artur's stage 1 modded MM put in and tested. Plus the stampede needs the hacker 12s installed and tested. And I have a kontronik twist 37 coming for my thundertech chassis pede. And my tt01 top speed car needs the hacker 5s put in it. And I bought a b40 hacker for my m03 tamiya fwd to go with the quark33 on 4s lipo. Plus the direct to diff redcat could do with a battery tray and chassis reorganization too. And I am sure that I am forgetting something. Oh yeah, the 55" gas boat needs hull work, rigging and a custom paint job. And the battery trays in the sv27 need to be updated for the new lipos. Plus the hyper7 needs to be started, 9s lipo on an aveox 1300kv. I need help.

Vandalising your motors already, and you havent even got the lid finished? tut tut. That said, I like to test things without the lid on, makes it easier to unplug stuff in the event of emergency....

Wanna hire me to work on your RC's? :na:

That setup looks great Linc. I love how those Purple cans look. :yes:

LinC..I think you need a bigger box man for your motors. Will you be selling any "spare" motors in the near future?

That's a good question Snellemin,

Here, Here. LOL

Don't worry, my buddies here at the RCM forum will have first dibs on whatever I have to sell.

I know I have a feigao 10l that can go, and a 6s that is almost brand new. I also have a 380 8xl, 380c 6l, 380c 7s and 8s. All of the 380c motors and the std xl are new. The 6s has one run on it, and the 10l has a few from the ctr.5.

I also have a mgm 90amp 4cell esc, and a brand new mtroniks truck pro. There is a kontronic 40amp 25v esc lying around too.

I have a spare hacker b40 motor too, not sure what wind but it is a s can, maybe an 18s. I would have to find it and check the label.

I guess that I should post a for sale thread, huh!

Yea man. A "garage" sale would be good.