Why do formula 1 cars have such a high redline?

May be...

Formula 1 cars redline up to 19,000RPM? How? i'd like some links that explain that.Thanks

they don`t need a big engine, they make an engine that revs high and as plenty of strengh you can`t compare to ordinary cars. its advanced technology, they are more like rockets.

Your wish isn't my command, but with what I've listed you ought to be able to fill your brain with everything you wanted to know about Formula One cars and engines, but were afraid to ask.

The third link is really cool.

Welcome to Y/A. Enjoy.

OK, an engine produces power through combustion.
You put some fuel into the cylinder and set it on fire so it goes boom.
Now you want more power, a bigger explosion that is.
It's very easy to put more fuel into the cylinder, you can add as much of the volatile stuff as you want.
Trouble is that alone ain't gonna give you more power.
In order to burn it needs air.
So you have to get more air in.
And that's where the problems start, you're already putting into the cylinder as much air as it can take, the valves open, air goes in, they close, boom.
How are you going to make more power?
Well, make the cylinder bigger, increase the displacement.
Nope, not allowed by the rules.
How about you turbocharge the engine and force more air into the cylinder so the pressure rises above that of the environment?
Nope, not allowed either.
So what you're left with is, rev the damned thing!
Let's say in every second you get into the cylinder all the air it can take, add the fuel and ignite.
The only choice left for getting more power here is to do this as quickly as possible.
Do it twice as fast and you'll get twice the power.
So, formula one engines being normally aspirated engines have to rev as high as possible to achieve greater power.
They are small displacement engines meaning they cannot produce a lot of work, remember, they can only get some much air in, hence they produce little torque, no more than my neighbor's Audi turbo.
But by reving very high they can produce this work in less time getting more power.
Rulemakers have halted this quest for higher revs and more power though by limiting the revs of the engines to 19000.
They had already gone past 20000 when this happened.
So now they're left with trying to increase power by narrowing the power band.
They optimise the engine (friction, ignition timing, ports etc) so that it works best in a small power band at high rpm thus getting a litle bit of extra power.
To compensate for the narrow power band they have a 7 speed close ratio gearbox that keeps the engine always up there.
Not much else left to do really now that they are not allowed to rev any higher.palm txt