NR.12 Macs 2.5 pipe NR header

[opio]

Well I just got home from a couple months out of town for work, and what a wonderful day it is. A long with a sweet .21 from shawdaddy, a new rc truck, and tons of other parts, I got my NR.12 for my JAE. What would be a good pipe length with the above mentioned parts? NR.12 mod carb, NR header, and Macs 2.5 pipe. And just to make sure I don't mess it up, explain how to measure it again lol!!! Thanks much! Jeremy

 

[Alexander King]

Well I just got home from a couple months out of town for work, and what a wonderful day it is. A long with a sweet .21 from shawdaddy, a new rc truck, and tons of other parts, I got my NR.12 for my JAE. What would be a good pipe length with the above mentioned parts? NR.12 mod carb, NR header, and Macs 2.5 pipe. And just to make sure I don't mess it up, explain how to measure it again lol!!! Thanks much! Jeremy

Jermey I have my mac pipe length set at 7 1/2" , I will shorten when I get a chance to run the boat on a warm day. Im sure it can be shorten but this is the best starting point. You can all was cut more off but never add it back on so when in doubt cut long. I have a air cooled NR C12 side exhaust with macheader, my pipe itself is is aprox 8". dont know do you have water cooled head rear exhaust 5 port......?

Hope that is of some help

 

[mike stover]

Well I just got home from a couple months out of town for work, and what a wonderful day it is. A long with a sweet .21 from shawdaddy, a new rc truck, and tons of other parts, I got my NR.12 for my JAE. What would be a good pipe length with the above mentioned parts? NR.12 mod carb, NR header, and Macs 2.5 pipe. And just to make sure I don't mess it up, explain how to measure it again lol!!! Thanks much! Jeremy

Jeremy,

This was posted a while ago, it should help ya.

Mike

 

[opio]

hey thanks guys!

 

[Glenn Quarles]

Jeremy, just make it as short as that pipe will go. Cut off the pipe until is just slips over the header (don't cut off so much that it gets "sloppy" over the header) and then adjust it as short as the pipe coupler will go around the bend in the header.

Glenn

 

[opio]

Thanks Glenn!