Racing Engine Amazing Revving Question
I saw a serious race car tachometer on video. The driver repeatedly revs the engine and the tach needle almost instantly hits redline and then _instantly_ goes back down. Again and again the needle is bouncing back and forth really fast.
Meanwhile the engine is growling fiercely, from high to low pitch extremely fast too.
My question is: how such fast revving speed change possible?
Our engines do the "same" thing but take muuuuuch longer to bounce up and back by comparison.
Does the racing engine have a lot less weight/inertia so it's possible to make these extreme rev changes so fast?
Is it the throttle system?
What's going on in an engine which can do such an amazing speed change so amazingly fast?
Thanks!
Meanwhile the engine is growling fiercely, from high to low pitch extremely fast too.
My question is: how such fast revving speed change possible?
Our engines do the "same" thing but take muuuuuch longer to bounce up and back by comparison.
Does the racing engine have a lot less weight/inertia so it's possible to make these extreme rev changes so fast?
Is it the throttle system?
What's going on in an engine which can do such an amazing speed change so amazingly fast?
Thanks!