sir miles

iTrader: (23)

Take off your spool and use the orig diff. Spools are very hard on the driveshaft.

sharpe351

sirmiles,
Factory spur gear with 16 tooth pinion gear. I have 17 tooth but never used it. If your still thermaling with 17 tooth try 18 tooth. It seems kinda high, but it might work. How is the driving on the dirt with Lipo/brushless? It it tweaked or is it controllable? Also, if you are in a really tight setting (course) try going lower, like a 15 or 14 tooth. Your esc may be thermaling because you're on and off the throttle alot. A lower gear may be your best bet. The only way to check is to try it.

rockstar81,
drop the spool and go gear diff. the reason your breaking parts isn't the power. Its the spool.

sir miles

iTrader: (23)

I have 14 to 18 teeth pinions. Im also thinking of using my 18T I hope this works. I also have 62 & 65 teeth spur but I dont know what pinion to use with these. QC tracks is very technical, some drivers even use front one way driveshaft on their MT to ease their cornering.

rockstar81

iTrader: (5)

I was breaking axles before the spool. I put the spool in because it kept tearing up the diff gears. What next?

sharpe351

well, you may be doing something wrong. My E has a 4.5R HV Maxx setup and I have only broken 1 tooth on the ring gear for the diff. I've probably put 20+ packs through the truck already and I replaced the rear ring and pinion with Robinson Racing ring and pinion. No breakage since repair/ upgrade. I also use Traxxas axle shafts and have NO problems. Also, use some 8-10,000 wt oil in the rear diff. The thick lube should help take the impact stress off the spider gears in the diff.

rockstar81

iTrader: (5)

Wow you hit the nail on the head, I use 8k in the front and 10k in the rear. Not that I don't appreciate your suggestions but I have tried just about everything and still tear up something in the drivetrain about every 3-4 runs (I get about 30-35 minutes out of the lipo). Any tougher hop-ups? FYI I lossen the slipper about a full turn and it doesn't happen but it slips for roughly 60+ feet when I get on it, slow acceleration.

sharpe351

what gearing are you using? It may be the whole cause of the problems you have. The slipper setting is WAY off. Mine is set at 1/4 turn back from tight. You may have to tune the power down a bit. If you are running a Velineon Motor and an aftermarket ESC on 11.1 Lipo then, I don't understand why you are breaking parts. The Velineon system is not quite as torquey as the HV Maxx, especially the 4.5R. Your gear ratio can tell me alot about the setup you have and may fix your problem all together. Also, Try the CVD's from Traxxas. I use them on my truck and have had no issues. They are considerably thicker than the MIP version. I think that will help. Are you running stock shafts for the trans to the diff connection? I used MIP for the Revo 3.3. The front shaft needs help to fit but its in there. Check for binding in the drivetrain too. Mine had some when I first got it, but the pinion needed shimming in the front to cure it.

rockstar81

iTrader: (5)

I am geared at 68/20, I have tried 68/15-22. My system still runs really cool don't want to gear it down any that just makes it even easier to put on its lid. It runs awesome if I could keep from breaking parts. I have run the slipper at varying degrees of tightness ranging from about 1/8 turn from tight to a full turn, still breaks stuff up till about a half turn loose then it still breaks sometimes. I would like to race it this summer but can't get it to stay in one piece. I'm just running stock axles from diff to trans, haven't had any breaks with those yet. Also I had it geared 68/16 and snapped both rear axles on takeoff with about 1/3 of a turn from tight on the slipper. The main things broken have been inner halves of the rear axles, diff outdrives, and the wheel outdrives?, spur gears, and diff gears. The truck rolls really easily with the pinion off and I have the pinion spaced right per traxxas. Any other thoughts?

cuzican

My evx2 didn't go up in smoke, but its over voltage safety goes nuts over my 7 cell batteries. Its going back to traxxas, but whats disapointing is the guy at traxxas that I talked to tried to tell me that it was normal and I should just live with it.......I had heard such good things about their support too.

4wdmt

Oh man. Another sad story about the EVX. I hope they do good for you. My 7cells are just on their way. I hope I don't get any problems. But, from the experience of the other guys here, it is a "normal" thing.

sharpe351

Are you running stock wheels and tires, or are they something like Proline "Big Joe" tires. Somtimes tires make all the difference. It could be the traction of a "big" tire tearing up the drivetrain. I use Hpi premounted mud mashers and only started with issues after putting them on (i.e. broken rear gears). It sounds like the gear is high, but speed should be ballistic. It also could be the 11.1 Lipo battery delivering all that power causing the broken parts issue. You may want to try to dial down the esc, if possible, to change your throttle profile. Make the profile bring the power on slower and try to tighten your slipper back up and test it. That change may make all the difference. I know it is aggrivating, but the only way to find out what these beasts can handle is trial and error. Test and retest, break parts and move forward.

rockstar81

iTrader: (5)

I have tried most of that, I am running stock tires right now, I have punch control dialed up to 70% in the esc. Any ideas what the people running them as pullers and what not use? I am a firm believer in trial and error but my error bill is mounting (well over $200, scared to add it up) plus my time involved in repairs. This is somewhat new ground for me as all my other rcs have been s/t, buggys, and touring. One run at a time with this one.

reptilesnr/c

SO should i get the e-maxx even though im not going brushless yet? I have all the extra shocks from my t-maxx i had and some other things and was wondering what batteries should i get *good packs* plus i have a Dynamite Prophet PLus is this good or should i get a different charger? Also do you think this charger messed up my MLST batteries.

CobraNut

Reptilesnr/c, I would still go with the E its gonna be enough for you and you can always upgrade later if need b, as for the batteries i would go with the Venom 8.4v 4200Mah.

sharpe351

Well, I guess I don't feel so bad, I've got just about $1K locked into mine. What about running the power numbers down to 50% and see what happens? As far as the puller thing, I really can't answer for them. I don't pull things with my E.