i hate to post another problem involving this car. i am running a mamba max esc with a futaba 3pm radio and standard futaba reciever. it was working completly fine. a while ago i blew up my motor and esc. i got them fixed under warrenty. i got the stuff back. it worked fine for a few days. now all the car does is stutter. it wont move at all. it works at first then slowly as i drive if i let off the throttle the motor will not turn back over. the problem is not the motor. i have tried replacing it with my bro's vxl motor and it was WORSE. i have tried playing with the settings on the mamba max esc and everything. nothing seems to help. also when it first starts doing it if you push it a little and gun the throttle it will go again.

does it sound like a radio/ receiver problem or a esc problem. i am leaning toward esc but i REALLY don't want to have to send it back in. it took them over 8 weeks to get it back to me the last time. this car just seems to be bad luck to me. all it ever has is problems[:@]. however i am determined to make it work[>:]

P.S. my e-revo brushless finally broke. ripped through two driveshafts at the same time trying to do a flip.

Try a different radio/receiver, and try a new motor/esc combo. The problem is not the car, its the user. Hard to say it, but I know tons of people who never have any diff problems becuause they know how to properly setup a diff, and don't have radio related problems and blame it on the car.

Could also be a battery issue. Have you tried more than one battery? Does the battery work in other cars?

Are you using "stick" packs or "side by side"? The side by side one can short onto the Graphite Casis and cause issues.
Just athought.

Did you re-calibrate your radio to the esc when you got it back. I would:

Assuming your car is built right.

1. Re-set-up the ESC to the radio. (Make sure all connections are tight and you don't have any loose wires or solder connections)
2. Try a different battery
3. Try a different receiver/radio (if you have one)

If your esc is programmed to your radio and your car is built correctly, I would think this is an ESC problem.

i know it is just me. the car might just not be for me. i have 4 other cars. a mini revo and the 1/10 brushless revo, mini hyper ste, and a rustler. i dont have problems with any of them. i dont bash the crap out of the xxx-t or anything i just do normal things with slightly more speed than most people have. i never have taken it bashing. just a few speed runs by my house and at the track. mainly because i am afraid to break it (i know race oriented cars sacrifice durability for weight)(btw this is a full graphite xxx-t). every other car takes anything i can throw at it. maby i should just stick with Traxxas. lol.

i have tried recalibrating the esc and remote receiver and all that stuff. the problem is is i dont have another receiver or remote besides my stock traxxas ones. however what i just remembered i could do is just switch the entire radio system with another car or the esc. im going to try that.

I switched motors with a vxl motor with my brother. omg the temps were so much better and no loss of speed. i just geared up. however if i ever let off the throttle it wouldn't start back up. therefore it is not the motor. have tried switching through 4 different batteries that all work with my e-revo so the problem is not the batteries. it is basically narrowed down between the receiver/ radio and the mamba max esc.

gonna try that. tell u what happens.

The mamba max has a lot of programming options. You may have to go through it and make sure some parameter is not set wrong, like operating on sensored with a sensorless system. I assume you are using the mamba motor with the MM ESC? That is a sensorless motor and it will cog at low RPM. Make sure your gear mesh is not too tight and your transmission spins free. If there is any binding, it could be enough to stall the system, although at full throttle, it should still shoot out of the box. I don't know what else to tell you to try. Good luck.