CMB 67 engines

[hydrobp]

What is the hottest CMB Engine for Scale boat?

 

[jeff baham]

TRY THE GREEN HEAD 67.

 

[Roy Munoz]

Have to agree with Jeff..But don't overlook the Purpel head..With a few mods it can be made to run with the best of them

 

[Jerry Wyss]

There's a guy on here now and then, names "Gene Gager", has a "Green Head"

in a Sport 60 "round nose" that is Blistering Fast,,makes the sweetest sound at full song And He win's alot too Has a O.S. carb on it though :huh:

 

[mark voorhies]

There's a guy on here now and then, names "Gene Gager", has a "Green Head"in a Sport 60 "round nose" that is Blistering Fast,,makes the sweetest sound at full song   And He win's alot too Has a O.S. carb on it though :huh:

106921[/snapback]

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Try a CMDI .550 carb on that motor and see what it will do? Might loose some

low throttle ability, but top end is much better.

 

[gene gager]

thanks Jerry, but my thought was its upside down more than right side up. Mark, does the CMDI 550 have a good low speed needle set up? after modifying the OS carb and failing I took Ralph Kemps suggestion and set the low speed needle just off the bottom and never moved it for the last 4 or 5 races. at that setting if it starts blubbering or racing at idle, I just open or close the main till I get the nice idle my ear likes and its right on at full throttle also. kind of off the norm for setting the main but its simple and seems to be working. when the idle is that sensitive to the main needle I doubt its even working as a low speed needle. geno

 

[Mike Stewart]

thanks Jerry, but my thought was its upside down more than right side up. Mark, does the CMDI 550 have a good low speed needle set up? 

The CMDI .550 has no needle. must use 3rd channel or remote needle.