Yamaha R6, 17500rpm!

Honest John Back Room » Motoring discussion
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Mon 24 Oct 2005 14:00
Yamaha R6, 17500rpm! - cheddar
I have mentioned before that I am amazed that the R6 (600cc 4cyl motorcycle) that was launched in 1999 has a redline of 15500 rpm and does not need it's valve clearances checked until 27000 miles, this when F1 engines redlined at 17500rpm!

Well the new 2006 R6 redlines at 17500!, only 1500 rpm short of Fernando Alonso's rev limit in the recent Chinese GP, and this a road going production engine, quite amazing!
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Mon 24 Oct 2005 14:06
Yamaha R6, 17500rpm! - turbo11
in 1999,merc f1 engine revved to 18600(end of straight).BMW was 19000.V8'S next season will be in excess of 20000 rpm'amazing technology.
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Mon 24 Oct 2005 14:18
Yamaha R6, 17500rpm! - nortones2
Honda racing machines were doing 22000 rpm in the 60's. 50cc twin with 4 valves per cylinder. Probably made in Switzerland.
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Mon 24 Oct 2005 14:25
Yamaha R6, 17500rpm! - SjB {P}
But what we're all forgetting here is largely driven by piston speed, which is why r/c model engines with their very short crank throw can pull stratospheric RPM that makes even 22,000 RPM look poor.
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Mon 24 Oct 2005 14:32
Yamaha R6, 17500rpm! - cheddar
F1 3.0 V10's not as high as 19000 in 1999 IIRC, either way for a road going production engine to be that close to a racing engine designed to last 500 - 1000 km is amazing.
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Mon 24 Oct 2005 17:00
Yamaha R6, 17500rpm! - martint123
The R6's big brother tops out at 13750 rpm, but that's good enough for 100+mph in first gear (of six).
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Mon 24 Oct 2005 17:05
Yamaha R6, 17500rpm! - cheddar
Yes, the R1 is the highest revving of the 1000's, giving it a massive speed range in any gear, it's short stroke means it loses just a little low down power compared to the Kawasaki and Suzuki which makes it easier to get off the line.
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Mon 24 Oct 2005 17:13
Yamaha R6, 17500rpm! - bikemade3
Makes my 95 CBR1000F Red line circa 10500 RPM seem positively slow, saying that 17500 RPM seems mechanically unsympathetic.
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Mon 24 Oct 2005 17:31
Yamaha R6, 17500rpm! - nortones2
Wonder what it sounds like! BTW, has anyone heard this Cosworth engine @20000rpm?

www.cosworth.com/downloads/cosworthV8_movie5_mediu...8

Warning: 2.2Mb file.
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Mon 24 Oct 2005 18:27
Yamaha R6, 17500rpm! - turbo11
The f1 engines i was installing in my last year on the f1 circuit(2000)were 19300rpm for qualifying and 18900(end of straight)
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