What is the science behind chirping into 2nd gear? Is it because of the suspension lifting or the trans spinning faster than the engine? does it actually make you faster? I never really understood this completely.. Other than if the engine is spinning faster than the transmission when you engage the gear.

 

You temporarily break traction. Technically would you be slower due to that lost traction/energy. However, if you have a higher rpm when the clutch bites than what the transmission will be spinning at whatever speed that is, something is going to slip. I would rather my tires slip a little than have the clutch slip.

 

Chirping is breaking traction. If the engine wants to be spinning faster -or- slower than the tires to a large enough degree, and the clutch is re-engaged smartly enough, the tires will chirp. Same as for any gear. If your engine speed is high, your engine wants to drive the car faster but it can't due to traction limitations. If your engine speed is low, the engine wants to drive the wheels slower, but it can't due to traction limitations.



Chirping is breaking traction under braking as well. Old ABS systems and drivers who don't pulse their non-ABS brake pedal fast enough cause this.

 

There ain't nothing like keeping the pedal floored on the 1-2 upshift, then dumping 6000 rpm into your drivetrain. Then claiming that your car is all powerfuel because it chirps second brah.

 

You've seen me drive!?

 

>sell transmissions for a living

>advocate chirping gears



I see where this is going, mister.

 

Because racecar?

 

Incidentally, that's also why changing up through the gears during a burnout is retarded. Just start in the gear you want, because the moment you push the clutch, the wheel speed will match the road speed. The moment you release it, the wheel speed will match the drivetrain speed.