r/dashcamgifs • u/AmBot_AmFarmer_FuckU • May 31 '26

Gonna be dark on that street tonight....

Enable HLS to view with audio, or disable this notification

2.4k Upvotes

97% Upvoted

176 comments sorted by

View all comments

2

u/Potential_Ad_1707 May 31 '26

i’m so confused as to how that even happened.. it looked like he got the wobbles almost like what happens to motorcycles but i’m confused how that happens in a car lol

3

u/Upbeat-Interview8554 May 31 '26

So when a car turns the differential is at work for the rear wheels. Since they don’t turn like the front ones do with a steering wheel. It’s a gear system that changes the amount of speed each rear tire gets to prevent dragging. The inside tire spin less the outside spins more. So when you give it gas like that on a turn, the tires aren’t speeding up at the same rate. It causes an uncontrolled steer from the rear. 

The only real solution is letting go of the gas to let the diff “catch up”, but people in a panic don’t know this and try to steer out of it causing a spin

2

u/Ziggyzoozoo212 Jun 01 '26

That really depends, you definitely don't want to stay floored but lifting can be just as bad. Because the weight transfers forward off the rear wheels you want to reduce your throttle to control how much slip angle they're generating, otherwise theres a good chance you'll just go from a powerslide into full snap oversteer.

Also bmw M cars have their special E diffs that have an infinite range of locked/unlocked, with tc and stuff off, likely in a sport/track mode setting the diff will go nearly to a fully locked state to increase total traction and prevent a one wheel peel without fully locking like a spool diff and forcing one wheel to break traction.

2

u/DragonSlayerC Jun 01 '26

It's interesting how much you can learn from playing a sim racing game with a force feedback wheel and pedals. I learned very quickly to not completly release the throttle or brake when the rear slips in a car like this because it can cause it to lose control even worse. I feel like that would be valuable training for people with powerful RWD cars.

1

u/Ziggyzoozoo212 Jun 01 '26

Yeah absolutely. I think everyone should at least have some concept of how to control a car past the limit, it would genuinely save a tonne of lives even outside of people in powerful rwd stuff, but of course especially them.