21 Pipe Length

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Dave,

You should cut 1/4" and retest your set up.

May want to try a bigger volume pipe on that new Beta-21.

Try Matt's new MD-21 carbon pipe and let me know how it works?

Enjoy Testing,

Mark Sholund
 
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Mark,

Shorter pipe is not always a good thing. We have played that game in the past and really didn't get any better results.

The Beta runs great with the 21 nitro pipe like on my 45. It's going to be an impressive motor.
 
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
 
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
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.
 
I have to agree Nova 21 hybrid AA pipe at 7.5" Sholund 1445. This combo I have in a JAE and a KEPS and they scream.
 
Kevin,

I revisited that set up tonight and I have to agree with you.

The 1445 with 3.46" cup at 7.5" on a OPS-29 pipe.

Nice Combination For Hobart,

Mark Sholund
 

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