Well it's rather obvious so you've probably considered this already. But maybe you should try another belt?

Short of that one...maybe try taking it to your Local Hobby Shop and have them give it the 'once over'...I've seen your posts and I feel your pain...but I really didn't have anything 'helpful' to say that the rest of the guys here haven't said or suggested to you.

Thanks for input guys, think im gonna try calling associated tommor, maby they have an idea, this is sooooo frustrating, finally got my pin mod done, and now this started happening

Try posting some pics of your setup with the belt cover off with close ups of both ends.

Speaking of which, have you tried running it a a few laps with the cover completely removed to see if it's getting snagged somewhere?

Are you hitting hard on the nose when landing with power applied like when trying to get the nose to raise up right before face planting into the landing of a double? I could see how that could flex your chassis and loosen the belt as seen a few pages ago, and if your on the gas when that happens the belt might be able to come off the guides.

I would try setting the tensionors as tight as they will go without locking up the motor and see if you can get a few laps in, may help you determine if that is the issue.

This is just a shot in the dark. But when I did my pin mod. My pin is not perfectly perpindicular to the shaft. So I have to make sure to put slipper hub in the right way.

So maybe yours is the same. To were if not in the right way there is room for the belt drive hub to slide out.

Yea, based on that I bet it is landing hard with power that's causing it. The pin mod basically locks the two slipper plates together but lets the spur spin between them, so your losing that extra slip on the belt side so hard breaking and acceleration could cause the belt to stretch instead of slip, then add a little bit of frame flex into the mix and it might be pushing it over the edge, specially if your slipper is tight and your belt is on the loose side.

PS: I'm a bit of an RC car noob, but i'm basically a professorial problem solver (programmer) so I'm just trying to find logical explanations based on the info given, I don't mean to slam the pin mod or anything like that.

Yea havnt installed pin mod yet,and yes first time it flipped over it was coming off a pretty good set of doubles, after that though all it takes is one little bump for it to happen, u dont even have to touch the brakes

Hi everyone. So I just got my sc10 4x4 last week and ran it for the first time at the track. There are definitely some tweaks I need to make, but one thing I was having a major problem with was TRACTION ROLLING. It was doing it in the sweeper and two different hairpins. I have sway bars which I know should help but they weren't doing much. Are there any suggestions you have to help this?? Thanks

Less Traction.

Yellow springs in front, 32.5wt front/27.5wt rear, middle shock tower (front and rear), outter arm (front and rear), add 4mm spacer (made from 1mm suspension washers) under the inner camber link in front and 2mm in rear, set ride height to 22/24 (front/rear).

The most important of those being the spacers under the inner camber links...it drops the roll center of the truck, as does lowering the ride height. The heavier front springs stiffens up the suspension a bit and will help also with roll-over a bit.

Ok, sorry for being late, but here is my setup. i also aded 4oz to the truck in adition to the weight I used to balance it. I put 1oz in all 4 corners.
Crap, I also added 2mm of shim undr the front camber linkage. somehow I didnt write that down. Also, I am running the +3mm hazard rims
Here is how I added the weight.

100%agreed. The shananigans need to stop.

+10 on lowering the roll center. As soon as I did this, I stopped traction rolling with the exact same setup I was running before. Rather than lowering it 4mm/2mm, I had lowered mine 3mm/3mm and it is working for me.

Where do you live? Maybe you live close to someone who can help trouble shooting the problem.

here is something that can happen that can cause the belt to flip make sure that their is nothing in the pulleys front and rear , check them for damage if one is chunked it can cause the belt to flip under stress and high RPM

if you don't find a problem there i would disassemble it and make sure it was assembled correctly

i know this sounds dumb but i had the same problem and it ended up being the chassis screws had backed out slightly. after tightening them all down the belt has not twisted or come off since.