Measuring the pipe!

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Bill Gibson

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Joined
Mar 7, 2007
Messages
3,045
Ive got an old CMB 21 LS motor in a 20 mono, and for the life of me, I cant remember how to measure the pipe length on a rear rotor motor with a wrap around header! I think the pipe is too long, so my buddy Go Fast Foley told me a loooonngg time ago! can anyone help me? THANKS!027.JPG 029.JPG
 

brad nichols

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Joined
May 10, 2010
Messages
2,546
There are a few different lengths of headers so you would have to find out which one you have, but a small tape works fine.

Brad
 

shoboat

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Joined
Jun 23, 2002
Messages
6,987
Bill,

Mike Z. had a nice 180* header pipe measuring tool when he had
Power Surge Products. I have some downstairs in my 1650 square
foot hobby shop. These worked Very Well and we use them
a lot on our 12 & 21-Hydros with rear exhaust engines. I found:
The Power Surge Products (Pipe Measuring Tool #115 Nova Rossi)
I could make some at school this week if Mike Z. would be OK with that?

Thanks For Reading & Happy Holidays To All,

Mark Sholund
231-590-3023
 
Last edited:

Grimracer

Well-Known Member
Joined
Dec 27, 2001
Messages
7,833
Mark.. I sold all of those to Steve wood.. please ask him if you can.. its OK with me.

Thanks.. dang good little tool.. I still have mine!

Grim
 

BobBonahoom

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Joined
Mar 6, 2009
Messages
523
I do it by taking a piece of white jacketed solid wire exactly 10" long and mark every 1/4" back to 7-1/2". That works for my 45s and 21s..
 

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john v

Well-Known Member
Joined
Oct 10, 2007
Messages
485
go for the pipe measuring tool, so much easier and more accurate than anything else. realitivly cheap, I guess mine was maybe 12 bucks and well worth it
 

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