Quote:
Originally Posted by
richardsracingmad
I am using Steve Ruth in Suffolk UK, to build the engine, and Cuervo Racing / High Desert Dyno in the USA for the parts and Cylinder Head porting.
My bike is a 2008 XTR, fitted with a DNA Stage 3 Airbox, a Power Commander, and Carbon Cans Exhaust.
I have already sourced a spare engine to use.
Specifications
+1 mm Valves
Uprated Springs
Cuervo Racing Ported/Flowed Cylinder Head
High Desert Dyno HDD5050 Camshaft
Bored out to 734cc with a CP 105.5mm 11:1 Piston
Bored out throttle body 2 or 3mm
To fit this piston, Steve is going the route of : boring out the existing Cylinder, and fitting a liner. This seems an easier option than fitting a Raptor Cylinder, and doesn't need Nikasil Plating either.
A more "lengthy" thread on this conversion is at
http://www.xt660.com/showthread.php?t=14763
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Richard, your parts will be on their way shortly, this will be a great build but require some tuning at your end, we hope all goes well!