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Scott Clough Racing
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TWO STROKE PORTING

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Porting is the key to two stroke performance, and we are experts at designing ports to do a specific job. The process begins with a thorough examination of the parts and specifications, which are then evaluated with different computer programs to fine tune the design. Port modifications are executed with precision for optimum performance and efficiency. Crankcase and manifold porting and matching is also available.

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Port molds such as these from a 2011 YZ250 allow study and measurement of port designs.

MACHINING

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I measure and adjust compression ratios, squish angles, squish clearance, squish velocity, and combustion chamber shape to optimize the combustion process. Variables are adjusted to work for your power output, RPM range, and fuel octane. This Bultaco head had a trough type chamber with two angled spark plugs, and was welded and remachined to a modern design.

See my tech article on head design

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CRANKSHAFTS

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I offer crank truing and welding, full rebuilds, balancing, and specialized machining. Cranks are assembled and trued to better than factory specs, and weight and balance modifications allow smooth operation at high revs. I can provide quality parts to rebuild most cranks, to build your engine on a solid foundation.

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Big changes require big work. Custom sleeves allow major redesign of ports, increasing power and torque in this Kawasaki H1R.

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760-365-4505

fast_motors4u@yahoo.com

56675 Scandia Ln, Yucca Valley, Ca. 92284
760-365-4505

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