Bashed my EREVO and EMAXX - RC-Monster Forums

MrMin · **Bashed my EREVO and EMAXX -** 10.19.2008, 02:13 PM

I smoked my ERevo EVX2 today real bad.(just pressed the button and up it all went in smoke!!!) Not worth a repair or guarantee... That I will put in the erevo forum.. I need some advice there too. Oh well, all in a days "fun". I run 4S2P and turned the ESC wires to molten metal and fused right through.

Reason is: I am a little disappointed in the performance of my stock erevo. My emaxx works much better. I think I just got a bad one - my friends erevo works like a charm!!! The forward torque is bad and looks like the diffs or wheels are not balanced. The "reverse" was much better than forward. So I decided to recalibrate the EVX2 - bad move - I pressed the button and up in smoke it went - luckily the 25C lipos are in parallel and could smoke everything including the esc wires which is melted and fused open.

I think the problem with forward is mechanical, but not sure. Reverse works ok / well, but sounds like some rythmic ticking sound in reverse. EVX is totalled - will probably get a MMMv3 brushless combo to "fix" all my woes.

Tx for any advice.

MrMin · **Anyone got a bright spark idea??? -** 10.21.2008, 04:00 PM

Any ideas?

kulangflow · 10.21.2008, 04:22 PM

Does it roll freely forward and backward when the pinion is disengaged?

With your reverse being better than forward, there is a chance that the switch on the transmitter was backwards. I would verify that from the manual.

Also, you were on the right track with recalibrating the esc. It's too bad there was something else wrong with it.

MrMin · **Arise erevo arise... -** 10.21.2008, 06:08 PM

Thanks for the reply. The transmitter was 3pm 2.4g. Receiver FF.
Strangely my 3905 emaxx i needed to set the throttle to reverse, but the erevo I did not need to.

I noticed that when I lifted the erevo and ran the car full speed the car was shaking pretty much, almost violently, and my friends , also new, erevo was shaking as well, but much less.

I was all set to recalibrate.... My friend already smoked his evx2 by pressing the button when it was on and I accidently did the same and boy it melted bad. The 4s2p (2x4AH) zippy-Rs toasted the esc and wires to melted solid copper and until one of the esc wires "vaporized" to dust.

BTW: I got the esc set up like neil said -> jumper & ... It was running "well" except for less forward speed for almost 50 min. Then I changed lipos and decided to try recal.... boom. Anyway ..Time for mmmv3 2200 anyway...waiting waiting waiting... just worries me about the lack of forward speed and the possibility of mechanical trouble...

Oh -- another hint...The titans were getting very very hot and the esc was shutting down twice due to heat.

I'm going to scavenge my emaxx evx2 to the erevo and see how it runs. Wish me luck ...hope i dont need it..

MrMin · **... -** 10.21.2008, 06:10 PM

My friend was running exactly same setup. No problems at all. His erevo was running excellently... he ran through 2 pairs of lipos.

E-fanatic · 12:47 AM

I am running the stock evx2 and enerland 25c 6000s( two 2s batts) and mine is running great. Sorry to hear about your issues. My emaxx was the truck that gave me all my problems. My e-revo has been golden(other than the motors die quickly, I have a castle 2200kv combo on order)

I just put a 12 volt dewalt motor to replace the 700ho and to get me by until the castle combo comes in. Before I broke the motor in tonight I tried it out. The truck did a standing backflip(nice torque). I should have some radar tests tomorrow.

EDIT:

Here is a link to my thread on the dewalt motor
http://www.rcuniverse.com/forum/m_81...tm.htm#8125737

MrMin · 11:23 AM

I think it is the titan motors... I will send in the evx2 from the erevo and get it repaired. Meanwhile I ordered dual 700hos from kershaw.. The emaxx I have bought 2 spare bulks. (no need to invest big in emaxx)

I am running 4s2p x 8.4AH zippyRs they are super good...Just fit in the compartment.

I also am waiting till the mmm 2K2kv show their colours. Then I will buy them.

Why does it take SO LONG for the mmm combo to come out... I'm getting used to adding 2-4 months on any date they announce.

MrMin · 11.11.2008, 12:24 PM

...Well..

I'm still waiting for the mmm combo..eta "end nov"...zzzzz

So....
I bought 2 x dual 700hos for erevo and 2 x dual 700hos for emaxx 3905...

I will order maximizer beadlocks 17mm, badlands mt..... At least I'll be happy for a while until the beta testers for the mmm have made their experience.

hpitraxx · 04.24.2009, 11:37 AM

hi guys im new to the whole forum business. but i wanted to ask is it better to run a 17t pinion with the twin titans if you care more about torque and acceleration than top speed?

E-Revonut · 04.24.2009, 12:20 PM

That is correct. Iirc the stock pinion is 19 tooth. Going down in tooth count will increase torque, acceleration, and runtime but decrease top speed. Your ESC and motors will also last longer as your pushing less current through them

hpitraxx · 04.24.2009, 01:41 PM

ok thanks for the prompt helpful info!

hpitraxx · 04.24.2009, 01:43 PM

do you have any other cheap easy mods i can use on my e-revo?

E-Revonut · 04.24.2009, 03:57 PM

Your going to want to build a brace for the rear body mount. Something like this.

I used a turnbuckle. Made a small aluminum plate and mounted it to the shock mount screws, connected the turnbuckle with a m3 screw and nut there, popped the ball out of the other end and used an m4 screw on the rear body mount where the exhaust bracket would go on a nitro. It tdoesn't take to many flips to break the rear body mount and an aluminum mount breaks even quicker.

hpitraxx · 04.25.2009, 07:28 AM

ok cheers i wont be jumping that high but i think this is a good idea and i am gonna use it when i get my e-revo. what about shock setups? im gonna be bashing in a forest with medium sized jumps. thanks again for the info. this is really helpin me!

E-Revonut · 04.25.2009, 08:51 AM

I immedietlly switched the springs on mine to the other springs that where in the box. Haven't changed the fluid at all. I am running 50k diff fluid in the front and rear. I have tried a few different tires as well. The talons are great as long as you can keep them glued. Badlands are great for the Diffs cause IMO they provide almost no traction, bowties have tons of traction but will wear out on pavement, mashers are what I currentlly have on and I like them cause they have good traction on almost any surface and make the truck look more like a MT