19,000 rpm...how do they....

[sosmerc]

do it???
I was watching the Formula I race and I see these guys bumping 19000 rpm.....WOW! So 10,000 should be a piece of cake for a slightly jazzed up Verado???

[CDave]

Originally posted by sosmerc
do it???
I was watching the Formula I race and I see these guys bumping 19000 rpm.....WOW! So 10,000 should be a piece of cake for a slightly jazzed up Verado???

Lightweight parts and they use a pnuematic valve dampners, no valve springs. http://forums.atlasf1.com/showthread.php?threadid=67155

http://www.delwestusa.com/images/2_airspring.gif

[6Killer]

Honda had 4 stroke motorcycle road race motors in 1965 that were 7 1/2 cubic inch (125cc) 5 cylinder motors that turned 22,000 rpm.

All without pneumatic valves, synthetic oil, EFI or any of the things some think are absolutely necessary to run like this.

6

[sms]

This one stopped a little shy of 19,000, but it is pretty impressive really. Last year M. Schumacher finished on the lead lap of every race, thus he ran EVERY available lap of the season with NO mechanical failures of an kind.

[sosmerc]

While Formula 1 does not always provide the most exciting racing action on the track, it certainly does represent the highest level of engine technology and therefore a peak into the future. The Le Mans series isn't far behind either.
The level of engine monitoring through telemetry is amazing...it probably won't be long before "On-Star" type services will be mailing you a graph report of your car's systems with a recommendation for service. The downside is, you could get a similar "report" from your local law enforcement along with a ticket for that last little joyride in your 'vette!!

[CDave]

F1 is a great tech playground. The old Ford EEC-IV computer came directly from F1. And it was arguably the best factory car computer system ever made, from a hotrodders point of view.

I think there are heads a rollin' at Mercedes this week. Three races, 3 blown engines.
Maybe Mercedes can do like Chevy did in the IRL and just rebadge a FORD engine. :D

[1BadAction]

Originally posted by 6Killer
Honda had motorcycle road race motors in 1965 that were 7 1/2 cubic inch (125cc) 5 cylinder motors that turned 22,000 rpm.

All without pneumatic valves, synthetic oil, EFI or any of the things some think are absolutely necessary to run like this.

6
I have a 7.5cc motor that turns 50,000 rpm and its a carburated 2 stroke. lol

[BarryStrawn]

How they do it is cubic dollars:D

The F1 engines have very short strokes to keep piston speed down and the pneumatic valves as mentioned earlier. The 1965 Honda RC148 that 6killer mentioned had a 33mm bore and 29mm stroke to make a 25cc cylinder. Think of a model plane engine for a comparable size. The valves were obviously tiny and featherweight so they could run those revs with conventional technology.

But a modern F1 engine has 300cc cylinders. (3 litre V10) They are reported to use bore/strokes as radical as 100mm x 38mm to keep the piston speed under control. Considering the cylinder is 12 times larger, the stroke is only 30% longer than the 1965 Honda. Thats a 4" bore and 1.5" stroke for the metric challanged. This also allows good rod geometry and a short engine. Big piston though and they have to "idle" around 6,000rpm just to keep them running.