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2008-2009 Racecraft Mustang For discussion of the 2008-09 Racecraft 420S Mustang. Owners of the 2007-08 "Sleeper GT" can also find help here.

 
 
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Old 08-31-2011
slimm609 slimm609 is offline
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Join Date: Jul 2011
Location: charleston, sc
Posts: 16
Default A few quick questions about the racecraft engines

I was wondering what if any of the bottom end of the racecraft's are forged?

What would be a safe size pulley to go with, without having to start on the bottom end? 3.20? 3.40?

I understand that proper tuning and other parts need to be considered like fuel, etc. but I am trying to plan out an upgrade list and I would like to add the mosaleen idler and there is the system 1 and system 2 and the pulley sizes come into play.


Thanks in advance
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