Sway left to right during hard acceleration

[SC509]

Hello, new here…
I have a 2023 R that just got back from an upgrade to a Velociraptor 1000. During hard acceleration (all wheel drive T/C on) the truck pulls hard left, then right and so on. You have to be on your game to keep it in a single lane. I noticed a slight pull left/right when it was a stock R but this is quite aggressive now.

Any suggestions?

 

[julien194b]

1000 ??? as 1000HP you mean ??? perhaps try to put 200hp more and it will be ok...
Seriously, I don't know,before the tune, did you have this problem ?
1000Hp, ....mmmm I don't know what will break first, truck or driver ...
I guess to keep such power on the floor you need a dragster and not long travel suspension truck...

 

[Keith88]

Had the same exact problem on my 22 37pp truck. Its your wheels and tires. I did hub rings and swapped tires. Problem gone. BUT.... first I would check that you front shocks have been zero'd.

 

[SC509]

Thank you for the info, great suggestions and I will give it a try

 

[Moody03svt]

I feel this a bit as well only under hard acceleration in 4A and it is "fun" to keep it in a single lane.

I have not tried turning off Traction Control to see if that may help. I know it could also be the tires (38" in size) or the roads I was on (crowning, etc.,)

 

[tominphx]

If only under hard acceleration, it's traction control engaging and disengaging, its hunting!
Watch some videos of AWD and 4WD vehicles in slow uneven terrain, it's a shit show of wheels slipping, locking and unlocking.
Disable TC and see what it does!

 

[tominphx]

Also, had a similar problem with an Audi S4, would do the same but it was the lane change avoidance feature that caused it.
Turned it off and all was well. Not sure if the Gen 3's have that type of feature.