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Old 08-01-2005 | 08:40 AM
  #1882  
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kitracer
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Joined: Sep 2001
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From: hong kong
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weeeeeeeeeeeee,
whats up.
True, I experienced the same thing on different Nova' crankcase ( not as bad as daiz24 exp ) but 0.3 or 0.4mm head shim is easy and good to start with for 25 to 30%. But read plug and go as low as possible (within limit) to achieve the best result.
Also exhaust make some difference.



Originally Posted by InitialD
Hey Chris, I'm clearing some backlog here and reading some old stuff...

I agree with RayJ on the shimming and his numbers. Number and thickness of shims does not automatically result a sure head clearance number especially from one Nova engine to another...

In Thailand early this year, my NovaMax was running with 2 x 0.1 mm copper shims with the supplied 25% Tornado fuel. I used the 7tf plug. That translated to about 0.5 mm head clearance upon measuring and I was getting about 120 degree C during race condition.
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