Crighton Racing CR700P rotary racer - Honda RC51 Forum : RC51 Motorcycle Forums
 
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post #1 of 10 (permalink) Old 10-09-2013, 09:46 PM Thread Starter
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Crighton Racing CR700P rotary racer

After two years, the big brother to the Norton NRV 588 rotary racer finally appears.

The Crighton Racing CR700P, powered by 700cc twin rotor wankel.
200 HP at 11000 RPM, 100 ft/lbs at 9850 RPM, and only 298 lbs dry weight.
Approximately 335 lbs wet weight.

When asked what racer Jamie Whitham thought about it after riding it, his response was "fookin' quick!".



http://www.youtube.com/watch?feature...&v=TeQv60OZuP8

http://www.youtube.com/watch?feature...&v=H2GLtGVBWIc
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post #2 of 10 (permalink) Old 10-09-2013, 09:48 PM
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YES ! Rotary engines are the shizznat ! I would love to have a go on it

-2001 Honda RC51 sp1 " Slightly Modified "
-2001 Honda 929RR Erion Edition
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post #3 of 10 (permalink) Old 10-09-2013, 09:50 PM
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Wow, sounds and looks impressive!
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post #4 of 10 (permalink) Old 10-09-2013, 09:52 PM
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Very nice.....Lets see the MSRP



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post #5 of 10 (permalink) Old 10-09-2013, 09:53 PM
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-2001 Honda RC51 sp1 " Slightly Modified "
-2001 Honda 929RR Erion Edition
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post #6 of 10 (permalink) Old 10-09-2013, 09:59 PM
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The only thing I see I do not like is the link-less rear suspension. The sound is bad ass.

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post #7 of 10 (permalink) Old 10-09-2013, 10:50 PM Thread Starter
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The "little brother". The Norton NRV 588.
Only 175 HP with the same weight.

http://www.youtube.com/watch?feature...&v=xhvc2NxvqIw

http://www.youtube.com/watch?feature...&v=48foOHK2tyA

Last edited by SubSailor; 10-09-2013 at 10:53 PM.
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post #8 of 10 (permalink) Old 10-10-2013, 06:39 AM
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Looks lovely & I too love & own (cars with) rotary engines, but as rotaries have ignition 3 times per rotor per revolution, a twin-rotor will have 6 ignition cycles per rev. A normal 4 stroke 4 cylinder will have two. So although the rotary can make heaps of power, it's got much more frequent power pulses to the rear wheel, much less engine braking (Not a bad thing on a bike) and inferior fuel efficiency. Plus rotaries burn oil as part of combustion... not unlike a 2-stroke engine's characteristics - to protect the seals (or piston rings in the case of a conventional engine).

Not sure it'll make for such a competitive bike, but it sure looks stunning!

Euro RC51 SP2: HRC WSB Ti Hi-Level, T1 Airbox & Snorkel, PCIII, Dymag CA5 Carbon Wheels, Ti64 Spindles (F, R & Swing Arm), Mori Link, Maxton GP7 Shock & Ohlins 832 Forks, Brembo GP Calipers & SBK narrow track (F), Braketech Disc (R), Brembo billet Underslung x 2 Brembo RCS, Tyga Triple, 7075 Stem, Probolt Titanium all over, Babyface rearsets, MR Complete Carbon Lineup, Custom Undertail & CBR 1000 LED, Watsen LED Indicators, Harris Brace, Giles clip-ons, Corbin seat, etc. 2013 BOTY.
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post #9 of 10 (permalink) Old 10-10-2013, 12:13 PM Thread Starter
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Quote:
Originally Posted by Waldo View Post
The only thing I see I do not like is the link-less rear suspension. The sound is bad ass.
A link-less rear suspension is not really that big a deal.
After all, what does one usually want on a single-rider bike? A linear rate suspension for consistent suspension operation.

So we go to all the trouble of modifying our OEM progressive rate linkages to a linear rate.
Not only does this bike already have that, it removes the added weight of the linkage and fasteners.

About the only advantage a suspension linkage would have in this case is the packaging of the shock/spring unit on bikes where the engine prevents optimal or convenient placement.
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post #10 of 10 (permalink) Old 10-10-2013, 09:25 PM
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If link-less was the best option all the MotoGP guys would be running it.

I can't speak for street but KTM used to think link-less was the way to go in the dirt. Their bikes always had suspension problem. It wasn't until they started using the link that they started winning on a regular interval.

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