ejp67

My Feedback: (5)

What can I do to get my MM 21 over 40mph??? Will it do it once I get it tuned right???

Ron Olson

My Feedback: (1)

You should be able to get it into the 40 MPH range. Play around with different props and you may have to up the nitro percentage. Give your new motor some time to get broken in and work on setup.

ejp67

My Feedback: (5)

Sweet. I would love to see it doing close to 40. Do you think the .21 will give me 8 more mph???

eas___1990

did you put a new engine in your mm 21 or is it the same as in the old pics?

ejp67

My Feedback: (5)

Same but I shortened the pipe for more performance.

t3racer

How fast is the boat going as it is right now? Have you clocked it timed it or anything? You could upgrade to a racing engine, such as a novarossi or something. I bet this .21 would do it, that is if you have $400 to spend LOL. http://hyperprod.bizhosting.com/_pir...5_inboard.html

ejp67

My Feedback: (5)

Can't say I do. I think I can get it close to 40 at least with the O.S.

eas___1990

i think that if i could fit that engine in my hammer hull id be set

Doubledog

My Feedback: (48)

have you ran that three blade on it ?