It varies. With some sequential gearboxes it's adviseable to dip the clutch during downshifts to lessen the impact of the sudden load changes involved. This helps to increase it's longevity.
Aerodynamics. Plus it only has to move a short distance to clear the glass and can be used as a reference point for turn in and braking points Race engines just make a glorious sound. The sound will be the thing I miss the most when, in the future, we're likely be racing full electrics. They'll be faster than today's race car but that sweet, sweet sound will be gone.
How do the lap times compare between this and NASCAR, which just ran the Sargento 200 there at Road America? I'm asking a stupid question just because I'm curious, and, oh, I also flunked Google.
Alright i'll explain it to you i guess. The whining you are hearing is from the straight-cut gears in the dogbox trans. that all cup cars use to decrease shift speed and have less moveable parts, thus less things to go wrong during a race. Have you ever put a car in reverse and driven a little ways? Remember how it sounds weird and different then all the other gears? Reverse in all cars is a straight cut gear. Theres no synchros or "helical" cut gears in dogboxes thus resulting in that sound.
You also get rid of a whole lot of transmission stress by using the clutch (99% of the time, as others have said) on downshifts, even racecars have to survive a while
Nope there are no turbos on this car it's a 3.8L naturally aspirated flat six engine. The whining is due to the gearbox that has straitgh cut gears. On an everyday car the gears are cut helicoidaly to make less noise. Except the reverse gear. That's why the reverse gear whines a lot
