SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Technology Stocks : Advanced Micro Devices - Moderated (AMD) -- Ignore unavailable to you. Want to Upgrade?


To: fyodor_ who wrote (57170)10/4/2001 12:58:01 PM
From: pgerassiRead Replies (2) | Respond to of 275872
 
Dear Fyo:

That is not entirely true. There are two things in a modern engine that run at a different speed, the first is the camshaft and it runs at half the speed. The second is the distributor and it also runs at half speed. The water pump runs at a different speed as does the alternator. A turbo or supercharger also runs at a different speed and the former has no constant relation to the crankshaft speed. My old RX4 wankel engine also had two speeds, the rotors rotated at 1/3 the speed of the crankshaft. In a radial aircraft engine, the crankshaft does not rotate at all.

Without the camshaft, no piston engine would run.

Pete



To: fyodor_ who wrote (57170)10/4/2001 1:21:21 PM
From: TenchusatsuRead Replies (2) | Respond to of 275872
 
Fyo and others, at least with cars, a standard benchmark for performance is the acceleration time from zero to 60 MPH. Of course, no one really needs good 0-60 performance, now do they? ;-)

The trouble with the processor performance game is that there is no de facto standard of measurement besides clock speed. Obviously this is not a problem that Intel is very willing to fix, but AMD's arbitrary "quantispeed" rating is no solution, either.

Tenchusatsu



To: fyodor_ who wrote (57170)10/4/2001 2:01:07 PM
From: Charles GrybaRead Replies (1) | Respond to of 275872
 
fyo, you can build on that. Throw turbos, EFI, variable valve timing and the rest in there and engines become as complicated as cpus to rate.

Constantine