CMB steel Pipe
- Thread starter Buckshot
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ek kustomz
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- Aug 29, 2005
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no but I was considering trying my M&D steely pipe but wasn't too sure because of the weight.
That 35RS gas pipe must weigh about 2-3 pounds. It sure would screw up the CG on most boats
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- Apr 27, 2007
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Buck,
The CMB 35 pipe is huge and heavy. Its aleady too big for most heat racing set-ups. I ended up shortening mine my removing the band section and could probably use a little more removed. It also has a special spherical flange which is a really nice feature, but requires the mating header which would be a pain to reproduce.
The AB 90/100 billet pipe is on the right and shortened CMB pipe on the left. Note the CMB pipe doesn't even have the 6" muffler attached which comes with the motor package. The 35 with the steel pipe does a lovely nasty snarl to it though.
Tyler
The CMB 35 pipe is huge and heavy. Its aleady too big for most heat racing set-ups. I ended up shortening mine my removing the band section and could probably use a little more removed. It also has a special spherical flange which is a really nice feature, but requires the mating header which would be a pain to reproduce.
The AB 90/100 billet pipe is on the right and shortened CMB pipe on the left. Note the CMB pipe doesn't even have the 6" muffler attached which comes with the motor package. The 35 with the steel pipe does a lovely nasty snarl to it though.
Tyler
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- Apr 27, 2007
- Messages
- 3,371
Thanks Buck,
Its a 48" monster alright. The CMB is pretty healthy and it's built like a scaled up 90/101. It does suffer from crank twisting at high RPMs, but is very impressive. Its not terribly fast running around 70 mph, but its sound and size make it an impressive sight to see run.
Tyler
Its a 48" monster alright. The CMB is pretty healthy and it's built like a scaled up 90/101. It does suffer from crank twisting at high RPMs, but is very impressive. Its not terribly fast running around 70 mph, but its sound and size make it an impressive sight to see run.
Tyler
Alan Staus
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- May 5, 2007
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- 145
We used to have our cranks welded a rebalanced on the 1100 Kawasaki, don't know if thats an option with this smaller motors.
Alan
ALLAN YUEN
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- Jan 14, 2005
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I am not sure that no allow use belt on CMB35Rs (gas) at NAMBA rule: must use pull start 
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- Apr 27, 2007
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Allan,
The CMB 35rs is classified as a GX-2 motor in NAMBA where "stock" rules do not apply like the G1/G2 classes. The disk valve would also be illegal in stock classes. Since there are not enough GX-2 hydros (i think I may be the only one in D19) I run the big rigger in the open class against any and all other types of motors and hulls.
Buck,
I have thought about welding the crank, but Mitch @ QD has been kind enough to work on the cranks for me if they are twisted or need repair. CMB does sell the parts individually which is nice becuase a new crank cost about $500.
Lohring and Mike Bontoft went one step further and added a third bearing support on the output side which helped in their saw boat.
Tyler
The CMB 35rs is classified as a GX-2 motor in NAMBA where "stock" rules do not apply like the G1/G2 classes. The disk valve would also be illegal in stock classes. Since there are not enough GX-2 hydros (i think I may be the only one in D19) I run the big rigger in the open class against any and all other types of motors and hulls.
Buck,
I have thought about welding the crank, but Mitch @ QD has been kind enough to work on the cranks for me if they are twisted or need repair. CMB does sell the parts individually which is nice becuase a new crank cost about $500.
Lohring and Mike Bontoft went one step further and added a third bearing support on the output side which helped in their saw boat.
Tyler
