TwinTurbo.NET: Nissan 300ZX forum - Re: Why such high RPM for a road race engine?
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Subject Re: Why such high RPM for a road race engine?
     
Posted by S2z on April 24, 2011 at 1:18 AM
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In Reply To Why such high RPM for a road race engine? posted by induetime on April 23, 2011 at 10:52 PM
     
Message Actually, not a bad question! Take a look at the F1 engines. F1 has been spinning V10s, and V12's over 25,000 rpms for decades now. Why?
Look at it this way, if you had an engine that produced a broad power band over a smaller RPM range, you really still have a limited, peaky power band that forces the driver not to be able to put this power down smoothly. Conversely, if you had an engine that has a higher RPM limit, and makes it's power closer towards the top of the RPM limit, then the driver is actually has a larger, and therfore, more progressive and driveable powerband to work with. The driver then has a better opportunity to get all of that available torque and horsepower to ground, therefore decreasing his laptimes.

Here's something else to ponder:
Air has mass, once given velocity, that mass will continue at that velocity until some other opposing force decays and overcomes the energy providing that velocity (friction, etc).
Just like our beloved Z's that require energy to initate motion, once in motion, it take less energy to maintain that motion (velocity). The same is true for air entering an engine...

I'll take a look see at the SZ oil pan, Thanks!

     
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