Thunderbird93

This is really starting to p*ss me off. For some reason my S-Maxx keeps pulling to one side whenever I give it full throttle(Sirio .23). The left wheel comes off the ground and either it does a full circle (if I'm in loose gravel or dirt) or it goes out of control. I had a locker in the rear but I put it up front so it would pull more from the front but it's still doing the same thing. I had no problem for the last year and a half since I put the Sirio in but for some reason I can't get it to go straight. Please help. Thanks.

ttoks

put the locker in the back, one wheel is lifting off the ground, or one wheel is getting more traction and biting in make you turn.

or put thicker oil int he back diff.

flaminheli

Welcome to the world of 2-wd and to much power.

ttoks

lmao, sounds like a jato.

DaveG55

If it's 2wd then why does it even have a front diff and even if it does there's no driving force there so why would locking it make a difference anyway?

If it worked right before and started to pull later then you need to check for what has changed. I'd check any chassis braces, rear bukheads, diff cases, a-arms, etc. Anything that will let the chassis flex or cause an uneven transfer of power.
If it's done this since the Siro went in then, yeah, just too much power...

Thunderbird93

ttoks I had the locker in the rear for about a year and a half when I put my Sirio in but just 2day put it in the front thinking I would have more pull from the front than rear and it's still doing the same thing it was doing when the locker was in the rear.

DaveG55 I forgot to mention that I made it 4WD also about a year and a half ago. I guess I'll have to go over everything this weekend.

flaminheli

Sounds like you might have a broken output shaft on the rear. Something is wrong with the rear diff, I think.

ttoks

simply to much power for the car, i find my revo does this with the rb tm 523 when i run on blacktop, if i have the center diff in as well (without the cd it just flips) the front right wheels lifts of the ground, while the left one stays planted, making it turn only thing i can think of other then one wheel bitting more then the other is that the torque from the transmission and the drive shafts is twisting the chassis, like if you rev a RWD car and the body leans to one side, i don't know if thats what causing it though, could be.

flaminheli

I know every bigblock I have ran in the past would just cut donuts or be hard to control if you gave it full throttle from a dead stop on gravel.

NitroVenom

Does it still pull to the side at top speed? If it doesn't then i would just say work on feathering the throttle even tho peel outs are fun. and work on controlling it better. thats why i like BB so much since its a great challenge to to control it with all that power.[>:]

ThunderbirdJunkie

My Feedback: (3)

it's called throttle control. something most MT guys don't seem to be familiar with[&:]

Thunderbird93

TBJunkie.....it's not called throttle control because I know what I'm doing[:'(]. This motor is getting old because from a dead stop I used to flip this thing right over without my wheelie bar and it used to go in a straight line with it on. And I did have a broken output shaft. That's what I thought it was but it's been doing it before. I guess where's there's a will there's a way. I'll figure it out. By the way...I don't have any oil in the diffs. What should I be using? Thanks.