Pipe Length Help

[rennegade]

I am returning to R/C Boating after a long absence. I using a K+B .67 with a Macs muffled pipe and am wondering a starting length for the pipe?

Thanks

 

[Buckshot]

I don't know for sure, but a good place to start would be around 11.5" and go from there.

-Buck-

 

[rennegade]

I don't know for sure, but a good place to start would be around 11.5" and go from there.
-Buck-

Thanks, I adjusted the pipe to 11.5 and it ran alittle better. It will run on the pipe in rougher water but in the smooth it will come off the pipe and run slow.

I am running 25% fuel.

Do I need higher % fuel or maybe prop to big?

Any ideas?

Thanks

 

[Richard Dahlheimer]

I don't know for sure, but a good place to start would be around 11.5" and go from there.
-Buck-

Thanks, I adjusted the pipe to 11.5 and it ran alittle better. It will run on the pipe in rougher water but in the smooth it will come off the pipe and run slow.

I am running 25% fuel.

Do I need higher % fuel or maybe prop to big?

Any ideas?

Thanks

Try pulling pipe out another 1/4", with the same prop. If no better, try the next size smaller prop. You may just be trying to run to much prop. Richard D