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-   -   E-Maxx Outrunner (https://www.rc-monster.com/forum/showthread.php?t=8921)

ilpufxit 12.05.2007 07:47 PM

E-Maxx Outrunner
 
I bought one of the Outrunner setups on E-bay a while back. Before I ordered it, I called Castle Creations and asked them if I could run the outrunner with my MM controller. The tech said no problem, I might just get a little cogging (I don't want to see what a lot looks like) but there will be a software update later this month (June, I think). Of course the update still hasn't been completed and I just now finally got a Quark 80b to run the thing. Sure enough, the day the Quark arrived we got snow so I'm still waiting to really test it out.
These are some early pics from back in June. I'll get some new ones up later.

http://s199.photobucket.com/albums/a...x%20outrunner/

Hickoryhead 12.05.2007 08:41 PM

Check this guy out "sikeston34m"

He made the conversion and sold it to you. He could answer any questions you have.
By the way Welcome to the forums!!!

sikeston34m 12.05.2007 08:47 PM

Did someone mention my name? :lol:

Yes Welcome to the Forums.

Sure, I'll answer any questions that you might have, and yes, I thought that looked familiar.

I tried this setup on the Mamba Max also. It doesn't get along with it at all. I also contacted Castle and asked them if it would work BEFORE I bought the Mamba Max, they also told me that it would work. No Go!

The Quark handles this setup VERY well and even larger outrunner motors than this.

Please check out my "Direct Drive to Diff Revo Conversion" thread here in the Brushless thread. You might find it interesting as well. :yes:

Hickoryhead 12.06.2007 03:58 PM

Just giving credit where its due!!!:yipi::whistle:

I Trust Tyler 12.06.2007 05:42 PM

That outrunner is torquey enough to run just 6 cells? or did you just take a pic with only 6 and not 12?

sikeston34m 12.06.2007 06:32 PM

It will run on just 6 cells, but the top speed isn't there.

Much better on 4S Lipo. :yes:

ilpufxit 12.06.2007 08:37 PM

Battery
 
Those are build pics. I did actually try running 18 cells nimh. Amazingly my MM esc didn't blow up and I did get some good top end but it wouldn't start without a push. However, not much torque and I was thermalling within 5-6 min on short grass. It currently has 2 Maxamps 2s 6000 packs and a Quark 80b. I only wish we didn't have this snow so I could do some speed testing. I'll be adding some updated pics tonight.

suicideneil 12.06.2007 09:13 PM

Cool. It would be nice to see some proper feedback about how well this setup actually works. Not that I dont trust Sike, but its always interesting to see other peoples experiences.

sikeston34m 12.06.2007 09:21 PM

Quote:

Originally Posted by suicideneil (Post 133695)
Cool. It would be nice to see some proper feedback about how well this setup actually works. Not that I dont trust Sike, but its always interesting to see other peoples experiences.

I'm with you on that one Neil.

We need some feedback, some unbiased feedback. Pro's and Con's. What's good about it? What's bad about it? The whole nine yards.

Your feelings on runtimes and temps. Anything that you want to say. :yes:

sikeston34m 12.06.2007 09:23 PM

Quote:

Originally Posted by ilpufxit (Post 133683)
Those are build pics. I did actually try running 18 cells nimh. Amazingly my MM esc didn't blow up and I did get some good top end but it wouldn't start without a push. However, not much torque and I was thermalling within 5-6 min on short grass. It currently has 2 Maxamps 2s 6000 packs and a Quark 80b. I only wish we didn't have this snow so I could do some speed testing. I'll be adding some updated pics tonight.

The MM doesn't know how to handle this setup. All I got was stutter, stutter, Cog, thermal shutdown...........

The Quark on the other hand, with those Lipo's. :yes:

I would like to hear what you think when the weather gets good enough for you to try it with the new setup.

ilpufxit 12.07.2007 01:55 AM

New pics
 
I've added the latest pics of the E-Maxx. Not that its really all that different, it just works now. Unfortunately more snow tonight, sigh.

http://s199.photobucket.com/albums/a...x%20outrunner/

In the meantime, I'll be working on my new projects;

http://s199.photobucket.com/albums/aa266/rentabay/lst2/

and

http://s199.photobucket.com/albums/a...ntabay/Hyper7/

sikeston34m 12.07.2007 08:50 AM

That looks good. Waiting on show to melt must be even tougher than waiting for a package to arrive.

Here's where I mounted my ESC.
http://i160.photobucket.com/albums/t...m/DSC06447.jpg

It's a snug fit back there, but the shock tower and the bumper bracket protects it well.

Does your E maxx weigh much more with the Aluminum upgrades? What tires/wheels are those?

lincpimp 12.07.2007 11:32 AM

Your Maxx needs a bath Sike!

The motor looks so lonely, no rat's nest of wires around it!

Desmo 12.08.2007 02:21 AM

[QUOTE=ilpufxit;133734]I've added the latest pics of the E-Maxx. Not that its really all that different, it just works now. Unfortunately more snow tonight, sigh.

http://s199.photobucket.com/albums/a...x%20outrunner/

are those stock plastic diff housings in all that aluminum?

ilpufxit 12.08.2007 12:42 PM

Yup, its plastic
 
Very little runtime so far, they're holding together. I know it won't be long before I'm replacing them. Everything else in the driveline is metal.

ilpufxit 12.10.2007 12:56 PM

Wheel time!
 
I found a dry parking lot last night for some testing. Too dark to get any video unfortunately. I ran the E-Maxx with 2x 2s6000mah MaxAmps packs, near fully charged. I'm still getting cogging on startup, especially in 2nd gear I have to start very slowly. Once rolling it pulls well. Looks like 35 - 40 MPH to me. I tried a couple times to pull rolling wheelies, it was having none of it. Decent acceleration but it really didn't seem to have the torque I was expecting. I'll try playing with the controller settings, I'm not really familiar with the Quark yet. No doubt it would be faster on 6s but so far I only have one 3s pack and I've been warned :whip:about more toy shopping before Christmas.

sikeston34m 12.10.2007 07:01 PM

Quote:

Originally Posted by ilpufxit (Post 134225)
I found a dry parking lot last night for some testing. Too dark to get any video unfortunately. I ran the E-Maxx with 2x 2s6000mah MaxAmps packs, near fully charged. I'm still getting cogging on startup, especially in 2nd gear I have to start very slowly. Once rolling it pulls well. Looks like 35 - 40 MPH to me. I tried a couple times to pull rolling wheelies, it was having none of it. Decent acceleration but it really didn't seem to have the torque I was expecting. I'll try playing with the controller settings, I'm not really familiar with the Quark yet. No doubt it would be faster on 6s but so far I only have one 3s pack and I've been warned :whip:about more toy shopping before Christmas.

Ummmm, something isn't set right.

Set the Quark to these settings:

Battery Selection: Manual
Lipo Cutoff: 3.0 volts per cell
Motor Type Selection: Inrunner
Torque Selection: Dynamic Initial Torque

If you still experience cogging with these settings, increase the Neutral Range one step.

These are the settings in the setup that REALLY affect how the motor runs. The other settings are entirely up to you.

On Battery Selection, if you have it set to anything other than "Lipoly High" or "Manual", the quark will limit the current it feeds to the motor thinking that it's protecting your batteries by not drawing too many amps. Your Lipo's are up to this task for sure.

Motor Type Selection. I know the Quark has an "outrunner" setting, but the inrunner setting works MUCH better.

Torque Selection: Anything other than Dynamic Initial Torque is like "Soft Start". Low starting power will cog alot on take off.

Please use these settings and let me know how it works. :yes:

ilpufxit 12.11.2007 09:52 AM

That's better!
 
I'm sure it was the dynamic torque setting that was wrong. The default is soft start. Now its got good power, more like what I was expecting. Still getting some cogging from a dead stop but much more driveable. Pulled a few wheelies. Stopped running when I dropped a driveshaft pin and lost my rear drive. Now that it works I'll go through and loctite everything.

Thanks for the help, I'll get some video up asap.

ilpufxit 01.04.2008 01:57 PM

It begins!
 
I finally got some actual bashing time in on the E-Maxx. I have to say I'm really impressed with the outrunner system. I was jumping some 3 ft snow drifts at the edge of a parking lot. Worked great, very controllable.

I came in to do some waterproofing before it was too late. Unfortunately, as I was bagging the esc, I noticed that my upper chassis cracked right at the bellcrank mount. I know exactly which hard landing was to blame too!

Any thoughts on a good replacement?

suicideneil 01.04.2008 03:46 PM

A nice simple & cheap replacement is to use a T-maxx chassis:

http://monster.traxxas.com/showthread.php?t=313323

Its much stronger than the stock plastic item, and very cheap- just requires about 4 holes to be drilled for velcro battery straps or whatever. Other than that, the FLM chassis is nice and very durable too.


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