alt Hacker NewsWait, this isn't something that they configure the truck to do all the time? They can turn it on and off?
I thought this was some shitty way of being "special", like a loud exhaust, but being able to turn it on and off to gas people is downright evil.
It's not a "switch" per-se (though some of the kits have realtime tuning switches to make more/less smoke on demand).
It's a purposely poorly-turned engine + accelerator control.
TL;DR: poor turning, and floor it (high RPM).
This video gives a pretty good overview: https://www.youtube.com/watch?v=miTnnJ7xMv8