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?

Use two?

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

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

use an r6 in a 300kg car by all means, but not 500kg. there are too many disadvantages an not enough advantages.

Thanks guys! I will think about it!
smart51, do you have any video clips of your R1-engined seven?

http://www.youtube.com/watch?v=km0pMnaJrPA

http://www.youtube.com/watch?v=jgJO5qeOZQc

Steve

theres not too much in it between new 600s and the early blade motors mostly torque power is about the same

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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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

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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

I think you'll find the latest engines do....
07 ZX6R review

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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

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quote:

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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

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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"