SS5800 E-Maxx

Hi guys, great board you have here! I was wondering if you could give me some advice?

I’ve just recently converted my T-Maxx 2.5 into an E-Maxx with an E-tranny.. then I threw my SS5800 into it from my E-Pede. I’m running it on 7-GP3300’s geared 14/66 and I’m fairly pleased with its performance - not like the 2.5 but, not ugly either ;) . My problem is that even at 14/66 I got a thermal tonight while general bashing.

What I was wondering is: which brushless motor/esc will perform as well, or better than the SS5800, without having to worry about temps; here’s the ‘kicker’.. on 7-cells. In the future I’d like the option of going LiPo for more voltage however, for the time being I’d like to stay with my 8.4v GP’s.

Any advice you can offer would be much appreciated, thanks guys!


JimmyT
:cool:

Take the SS out of the Maxx, it shouldn't have been there in the first place. If you're only going to run it on 7 cells, you'll need some high rpm/volt rates, which dumps the batts faster, and is harder on the controller. Why don't you want to run dual battery packs?

[Dafni]

Agree with Dabid. This motor has no business in a Maxx, IMO.

Go 12 or more cells, and get yourself a Sensorless combo from Mike. (for example the MGM 16o amp ESC or Warrior 9920, and a Feigao 9L or 7XL motor)

btw, Welcome to the Forum! This is The place for BL Maxx info

[MetalMan]

I am suprised that the SS5800 even ran! The minimum number of cells for a Maxx is usually 12 cells. You can't go wrong with 12 cells (1200 watt peaks, 7 cells=700watt peaks).

[Serum]

Welcome to the forum! i would strongly suggest to take the novak out of the maxx and put it back into your pede!

It's a 2-300 watt motor and you are pulling a big sled with it..

It will thermal, unless you gear it with a spur thats to big to be available!

Originally posted by dabid
Take the SS out of the Maxx, it shouldn't have been there in the first place.

Originally posted by Dafni
This motor has no business in a Maxx, IMO.

Originally posted by MetalMan
I am suprised that the SS5800 even ran!

Originally posted by Serum
i would strongly suggest to take the novak out of the maxx and put it back into your pede!

Thanks for the feedback but wow, :eek: I didn’t think the performance was that bad! In fact, if I hadn’t of teased myself with the zipp of the 7-cell set-up (then made custom 3+4 saddle packs to accommodate it :L: ), I wouldn’t be too unhappy with it as a slow-basher/crawler unit – it never thermal’d on 6-cells and second gear was tolerable. In first, at 16/66 with either the 6 or 7-cell set-ups, it can toss itself on its roof with no effort – something my 2.5 never did reliably because of the spool-up in the tranny and clutch.. and tuning! ;)

Originally posted by Dafni
Go 12 or more cells, and get yourself a Sensorless combo from Mike. (for example the MGM 16o amp ESC or Warrior 9920, and a Feigao 9L or 7XL motor)

Originally posted by MetalMan
The minimum number of cells for a Maxx is usually 12 cells. You can't go wrong with 12 cells (1200 watt peaks, 7 cells=700watt peaks).

There are a few reasons why I’d like to stay with 7-cells for the time being:
a) The disadvantage of charging two packs every time I want to run
b) My charger set-up (two chargers built for 7-cells gives me more run-time than charge-time by cycling my GP’s – gotta scoop up some IB38’s)
c) I've made my own 3+4 saddle packs for weight distribution and organised my chassis layout accordingly
d) The added weight

Certainly, at some point (to my wife’s dismay!), I’ll be going higher voltage, and when I do I plan on going LiPo to maintain the single pack/light truck ‘model’. But for now, as long as I’m on the NiMh’s, my preference would be to gear down if necessary to stick with 7-cells and take the hit on the top-end. As I mentioned earlier, I’m not disappointed with the performance of the SS5800 on 7-cells (for the time-being), I do however realize that I’m out of room and would like to have a system that could run on 7-cells now (at least as well as the SS) and can take higher voltage LiPo in the future.

If there’s nothing out there that I can scale by changing the motor/esc now and upgrading to LiPo in the future.. then I’ll just gear down a little more, throw a fan on the esc and change my driving habits; until I can make the jump to LiPo and new motor/esc at the same time.

Originally posted by Dafni
btw, Welcome to the Forum! This is The place for BL Maxx info

Originally posted by Serum
Welcome to the forum!

Thanks! :D

JimmyT
:cool:

Originally posted by JimmyT:
d) The added weight

Thing is, while there might be more weight with more cells, your motor will still be powerful enough to make that sucker boogie. You still have to work out shock settings and stuff, but the Maxx was made to run with 12 cells anyway, so it shouldn't be that hard.

[RC-Monster Mike]

First of all, welcome to the forums!
I agree with the rest on this topic(more voltage is better), but we can certainly set you up with a suiotabel combo to meet your needs in the meantime!
It is a little tricky, though, as the ideal motor for 7 cell operation will be less ideal on higher voltage. If/when you finally decide to make the jump to higher voltage, how high will you go(voltage?) This will have an impact on a setup recommendation. Also, if light weight is your model, do you mind sharing ome specs? I am a light weight fan myself and have a pretty sporty 11.1 volt e-maxx setup myself!

Originally posted by RC-Monster Mike
First of all, welcome to the forums!
I agree with the rest on this topic(more voltage is better), but we can certainly set you up with a suiotabel combo to meet your needs in the meantime!
It is a little tricky, though, as the ideal motor for 7 cell operation will be less ideal on higher voltage. If/when you finally decide to make the jump to higher voltage, how high will you go(voltage?) This will have an impact on a setup recommendation. Also, if light weight is your model, do you mind sharing ome specs? I am a light weight fan myself and have a pretty sporty 11.1 volt e-maxx setup myself!

Thanks Mike! I’m about a month into it, I'll attach a pic of the current status of the project.

So far I've gone from the TRX2.5 set-up (2-speed, 2wd Stadium Maxx) to running the SS with the 2-speed tranny, but I couldn't generate enough RPM to kick it into second with my SS, another issue was with the one-way: when I would let the motor freewheel, it would lose it’s bearing and become unresponsive for short periods.. after spending a ton of time on the end of the dremel to mount the motor, etc, I ended up going with the E-Maxx tranny. In the end, I prefer the manual two-speed so it worked out alright. ;)

I added the Traxxas Big Bores on 4 points hoping I could get away with a 4 shock set-up using 1/8 buggy shocks but no dice, due to the counter-balance design of the standard shock mount, it just doesn’t have enough rigidity for my liking, I’m thinking I need a more suitable mount to accept the impact of only 4 shocks.

For the time being, I have a second RPM shock-tower coming with Revo tires/rims along with the 4wd kit. My thinking is that my current SportTraxx tires are more rubber than plastic, the Revo’s look very low profile so I’m hoping for a drop in rotational mass despite the slightly larger height – I can change my gear ratio for the size difference but rotational mass is rotational mass.

Some of the basic weight saving tips I’ve read are from this Steve Slayden’s Tips page as well as the other few for the T/S-Maxx: http://www.traxxas.com/support/pub/m..._part2_pg1.htm
..although, fuel tank, receiver pack, etc. is somewhat not as useful anymore.. ;) But basic things like trimming the front and rear skids still apply.. and my 4 shock setup, if I can find the right mount! Any advice you can offer would be much appreciated, I haven’t been tooling around with the Maxx this summer until this last month when I've been going steady; and now I fear I'm hooked!

As far as how high of voltage in the future.. I’m thinking no more than 11.1v. I've seen some of the higher voltage bl vids and I must say, the action looks a little beyond my aspirations. I'm more interested in useable power/torque with longer run-times than going 70mph (general bashing – possibly with 1st gear reserved for the slow trail stuff). I’m very interested in the specs of your machine Mike, I’m a ‘do-it-right’ kinda guy and I’ve finally turned my guns on the Maxx! :D

I must say that I'm pretty jazzed to have the Maxx back up, I've been ignoring it while I've been BL Pede'ing but, since doing the E-conversion I've been bit once again! As much as I’ve enjoyed the ‘pede.. it kinda looks like a toy next to the ‘big guy’, there’s no going back at this point.. :L:

JimmyT
:cool: