evan ritchie
Member
- Joined
- Jul 19, 2014
- Messages
- 8
What is a good starting length for a 21 pipe?
What boat?What is a good starting length for a 21 pipe?
We found that the key to getting it to stage consistently on the pipe below 8" with the h7 prop was to pull out one of the coils on the plug.Dave,
Bob has had Very Good results with a 7.5" pipe length on a CMB Nitro pipe.
7.75" is still a pretty good length for heat racing. Remember RPM is the name
of the game on the set ups. I agree your Beta-21 is one great motor. Propellers
should arrive tomorrow.
Enjoy Testing,
Mark Sholund
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