Novarossi 21DD getting good revs with SPP Carbon Pipe

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Ian Inverarity

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Joined
Nov 2, 2002
Messages
2,662
I have been doing some more testing with my modified Novarossi 21DD in a JAE21 using a SPP NR21 muffled carbon fibre pipe and a CoCr prop I had made up, and the boat is going pretty well, have had this setup on a Stalker radar at 80.5mph. The NR pipe design definitely suits the Nova 21DD engine from what I can tell. Very happy with the 21DD engine!
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A short run on video:

 
I have been doing some more testing with my modified Novarossi 21DD in a JAE21 using a SPP NR21 muffled carbon fibre pipe and a CoCr prop I had made up, and the boat is going pretty well, have had this setup on a Stalker radar at 80.5mph. The NR pipe design definitely suits the Nova 21DD engine from what I can tell. Very happy with the 21DD engine!
default_cool.png


A short run on video:

Outstanding!
 
How many gallons of fuel to get to this point?
 
Last edited by a moderator:
Yeah, I was just asking how many gallons it took to break it in, seems like they take alot to make power, or at least start to run properly.
Okay, I'm not really sure, due to issues I had when the engine was new it ran lean quite early and it was broken in quickly, not the nicest way to do it. Certainly at lot less running in that I normally do with Novarossi's.
 
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