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WTB Cooper .21 Outboard pipe

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Brandon Atwell

Well-Known Member
Joined
Mar 11, 2012
Messages
1,202
Looking to buy a cooper outboard pipe, lost ours in a trailer mishap a couple years ago.

Thanks everyone!
 
Brandon

If you can post a picture I will look in my Jim Irwin stock of pipes.

Dave
 
Brandon

The pipe in your picture is the cast front section and if you fine one it is like hitting the lotto.Good luck.The carbon pipe that Ron Shaw sales is a good pipe for the nova rossi outboard.

Dave
 
Paulmousseau

Can you tell me what size brass tube is inserted in your Irwin pipe you showed above? I have asked on this site before but with no replies. Someone said the added brass tube adds some more performance.

Ron
 
It's one brass tube that just fits inside stinger with another inside that one. Runs the length of the stinger. I'm going to try a internal stinger on some bigger nitro pipes like they are doing with gas pipes

IMG_20170226_121535117.jpg
 
Brandon. I have a complete .21 Irwin quite pipe. If you're interested, I can post pictures tonight when I get home from work.
 
We have both sizes of the Cooper pipes and the carbon pipe that Ron Shaw sells now (S.P.P.-NR) will pull more prop and produces more power thru the turns than either of our cooper pipes do. The Cooper pipe will produce a slight bit more RPM at the end of the straight but by then, it is too late for it to be an advantage. We are happy with the carbon SPP pipes.

-Carl
 
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