Cougar that pulls to left on power

[martgifford]

I have a Cougar the pulls to the left when on power. It did it at the track and also when testing at home. I have measured every tie rod and shocks have been rebuilt. It's not weight either as the esc is on the right of the car which is heaver then the rx. As I have worked out its when it accelerates it is possible to be the diff? Is this a natural tendency? I think thats all that's left. As driving slow in is fine. It's something to do with the transmission it think

Can anyone help

Thanks

[slow bob]

Mine always pulled left on power aswell as many others who owned a cougar sv. never figured out exactly why even after changing to a new diff/rw gears/new gearbox/bearings ect ect ect ..

[martgifford]

Sounds a bit of a defect to me. I hope not. Thanks

Anyway of rectifying it? Apart from buying another car!

[kayce]

Originally Posted by martgifford

Anyway of rectifying it? Apart from buying another car!

Grandpa used to like to say, while regaling his farming days, "There is only three things you can do with a horse that pulls to the left: plow crooked rows, tug extra hard with your left arm, or shoot the damn thing and put both of you out of your misery."


Sorry, couldn't resist

[martgifford]

Thanks for that

I am running a 6.5. Should I put a bigger pinion on to slow acceleration or possible put a 10.5 in to slow down that initial acceleration and hence that on power left bias. Add more weight to the car? Lower the car?

Help!

[kayce]

Originally Posted by martgifford

Thanks for that

I am running a 6.5. Should I put a bigger pinion on to slow acceleration or possible put a 10.5 in to slow down that initial acceleration and hence that on power left bias. Add more weight to the car? Lower the car?

Help!

Scaling back power is never really a bad thing, being as a car that is already a handful never gets better doing whatever it does bad faster.
But I always seem to have less motor than half the guys in the field, and my only issue is dodging them as they're bouncing off the walls. And a 6.5 just seems like a LOT of motor, unless you're ultimately talented behind the wheel or running a track the size of a football field.

[john333]

Originally Posted by martgifford

Thanks for that

I am running a 6.5. Should I put a bigger pinion on to slow acceleration or possible put a 10.5 in to slow down that initial acceleration and hence that on power left bias. Add more weight to the car? Lower the car?

Help!

A 6.5 is a hell of a motor for 2WD, I've had to turn my speedo down to stop it wheel spinning LITERALLY the length of the straight, so if your diff is needing some attention it will show by doing something weird like pulling one way or the other.