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Old 03-04-2009, 04:05 AM
  #16814  
John Tag
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Originally Posted by racenut123
I just purchased a Duo based 17.5 and 13.5 for TC racing on asphalt.Can I get a suggestion for gearing/FDR wise and timing for a track with a 130 ft straight for both of these motors? I was thinking 3.5-3.75 for 17.5 and a 4.5-4.8 for the 13.5.I have no idea about timing.Any help is appreciated.BTW the weather has been around 60 degrees F outside.Thanks!
Gearing is correct..Start in middle hole timming for std type speedo..With a Boost timming speedo run low timing and drop 2 teeth..
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