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Scott Clough Racing


We combine expert craftsmanship, computer design technology, and an extensive database of specifications to build you a winning combination. From World Champion watercraft racers, land speed record holders, motorcycle road race champions, motocross, ATV, vintage, and special project development, we have the tools to do it right.

Crank rebuilding and balancing



SCR bikes set land speed records at Bonneville


Ralph Hudson sets a 500cc record at El Mirage, click here to see the Youtube video !

New land speed records 2012
Worlds Fastest RZ350 ?
Ralph Hudson RZ350 based partial streamlined 500cc
APS-G 500cc  178.541mph
APS-F 500cc  182.656mph
Previous AHRMA class records 
200GP - Scott Clough, Yamaha CT1, 107.614mph
250GP - David Pierce, Bultaco Metralla, 99.813mph
Formula 500 - Ralph Hudson, Suzuki TR500, 134.981mph


SCR riders Ralph Hudson and Dave Crussell battle in AHRMA Formula 500 at Willow Springs.

Both riders compete in F250 and F500, racking up many wins in the 2009 season. Each secured wins on the high banks of Daytona, as well as tracks all across the country.

Dave Crussell put in an outstanding performance in 2009, securing 4 AHRMA National Championships on SCR built machines. Both F250 and F500 championships were for the second consecutive year. The F250 entry is a Kawasaki 350 Bighorn, more than a match for the Yamaha race-bred TD-2 and TD-3 twins. The F500 entry is a Kawasaki H1R 500 triple. A new addition to Dave's stable is another Kawasaki, a Z1R Superbike, built by SCR early in 2009. This bike won 19 consecutive races, securing two national championships.

These race winners have proven the value of SCR engine design and expertise. From top to bottom, heads, cylinders, crankshafts, and pipes, SCR engines deliver top performance.


Ralph and Dave battle each other in F250,  TD3 vs. Bighorn

 AHRMA Roadrace Tuner of the Year , 2009

A tradition of winning since 1973



Motocross and Baja legend Bill Silverthorn is now enjoying some SCR power in his 400 Husky.


The partership of SCR and Dave Crussell has produced a lot of AHRMA National Championships since 2008, and a great many more Regional Championships, lap records and other race wins.

TZ750 at Phillip Island 2013

H2R at Phillip Island 2013

56675 Scandia Lane Yucca Valley, CA 92284

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56675 Scandia Ln, Yucca Valley, Ca. 92284




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