I hear on the F-1 television coverage that 19,000 RPM is currently the
rule-mandated limit which cannot be exceeded either in qualifying or in the
race. This is supposedly in an effort to control escalating costs. ;o) (I
love it!)
>From what I have heard, sonic-wave tuning throughout the entire intake and
>exhaust system plays a big part in it. Pneumatic valve springs was a major
>'breakthrough' in achieving ultra high RPM several years ago.
An interesting tidbit that I heard on the TV from Steve Matchett on his Inside
Formula One TV show was that at normal room temperature (say 70-F) a Formula
One engine is completely SIEZED, and will NOT turn over with the starter. It is
only after a period of time pre-heating it by pumping 180-F water and 180-F oil
through it that it reaches proper internal clearances where it can be
turned-over and started by the starter apparatus. Wow! ;o)
Did you guys notice the JCB diesel streamliner using all the fancy engine
pre-heat systems at B-ville? Who knows??? Maybe (probably) it was just for
starting with extermely low C.R. for the high boost. ???
I've seen the diesels at competition tractor-pulls pre-heated to absolute
boiling and cranked with 48-volts into a 12-volt starter, and they STILL use
either to get them to fire!
JG
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