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Old 07-26-2011 | 05:18 AM
  #393  
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Grinder
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Originally Posted by Roelof
Beside the timings, is it the crankpin making the difference or is the whole dimension of the crank different?
The Sct is 11.9mm, and the tj10 is 11.5mm. Also the Sct is long stroke, and the tj10 is short stroke. The crankpin on the Sct is further from center than the Tj10.

I have used the 11.5 long stroke crank from the +12-3ct in the tj10. It works, but makes too much displacement to be legal for racing. The larger diameter short stroke piston with the long stroke crank. It was quick, but guzzled fuel.
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