Echidna
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| posted on 30/11/07 at 03:02 PM |
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Yamaha YZF-R6 Engine
I am a big fan of Yamaha bike engines R6 engine in particular. I just love these high-revving motors but do you think that this engine will be a bit
bad for a 500 kg car as it is well known for it's low torque under 8000-9000rpm?
There's always the well approved R1 option but for me the more delicate R6 engine is a bit of a challenge.
Any thoughts?

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matt_claydon
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| posted on 30/11/07 at 03:04 PM |
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Use two? 
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IndyJohn
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| posted on 30/11/07 at 03:05 PM |
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seen loads of these run in sidecar outfits, and they shift! But all the 600,s do there is not alot in them.
In my opinion you need bigger than 600cc in a car, but I just love speed!
I know it puts alot of strain on the gearbox, so bigger 4 me
john
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worX
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| posted on 30/11/07 at 03:07 PM |
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As John said it's not just the (lack of) power and torque it's allthe rest of the engine and box to consider.
Do it for a challenge by all means but you will regret it...
Steve
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smart51
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| posted on 30/11/07 at 03:10 PM |
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use an r6 in a 300kg car by all means, but not 500kg. there are too many disadvantages an not enough advantages.
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Echidna
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| posted on 30/11/07 at 03:15 PM |
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Thanks guys! I will think about it!
smart51, do you have any video clips of your R1-engined seven?
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NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
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worX
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| posted on 30/11/07 at 04:27 PM |
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http://www.youtube.com/watch?v=km0pMnaJrPA
http://www.youtube.com/watch?v=jgJO5qeOZQc
Steve
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afj
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| posted on 30/11/07 at 06:26 PM |
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theres not too much in it between new 600s and the early blade motors mostly torque power is about the same
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jambojeef
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| posted on 30/11/07 at 06:50 PM |
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No way.
AS mentioned before the load on clutches, gearboxes etc is just gonna be too high.
Because of the competitiveness in the 600 sportsbike sector, most of the very modern 600 engines have had significant reworking to make them as light
as possible and as powerful as possible (good figures in bike magazines shifting lots of units) meaning weight gets removed from cranks, valve stems,
clutch baskets, gears, crankcases etc and I wouldnt be confident to put that in a 500kg car.
Check out the formula student pages from e.g. Warwick uni for ideas on small bike engined cars. They're using a CBR600 engine I think.
Geoff
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ChrisGamlin
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| posted on 30/11/07 at 07:50 PM |
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quote: Originally posted by afj
theres not too much in it between new 600s and the early blade motors mostly torque power is about the same
Youve also got to consider the size/strength of the clutch and gearbox, and gearing as well as outright power outputs. Most 600s now rev to say 16k
rpm which means you'll be cruising on the motorway at 10k! The other thing is a 600 engine doesnt weigh a lot less than a 1000cc engine, so I
don't really see any benefit
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IndyJohn
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| posted on 30/11/07 at 08:16 PM |
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sorry
i think only the factory engines supplied to people like Dave Molyneaux get the 16K revs!
we get at best 14thou
john
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ChrisGamlin
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| posted on 30/11/07 at 09:49 PM |
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I think you'll find the latest engines do....
07 ZX6R review
quote: The nearer the tacho needle is to the motor’s stratospheric 16,500rpm redline, the more you’ll be won over by the Kawasaki’s highly impressive
turn of speed
07 R6 review
quote:
But unless you’re short of mechanical sympathy and prepared to scream the motor towards its 16,500rpm redline, then you won’t sample much of it
Pretty amazing machines
[Edited on 30/11/07 by ChrisGamlin]
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zxrlocost
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| posted on 30/11/07 at 09:51 PM |
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quote from kneeslider
"but we like to highlight a few distinctive features here and there. The feature about the R6 you’ve probably heard about is the redline, 17,500
rpm"
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