Super Jet COFFMAN SUPERJET EXHAUST PIPE AND R&D INTAKE

bigborecharlie

bigborecharlie

Location
texas
1keEx
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I am getting rid of stuff in my garage. I have a Coffman superjet exhaust pipe and a r&d dual carb manifold
I am sure the dual carb manifold is off a superjet 650 I had as it was in same box as 650 cases and the pipe was included in a sale of a superjet I bought as extra parts so I cannot say what model it is. if anyone can tell what model this pipe is please comment so I can set a value on these parts. I also have 2 650 motors sitting in my garage one has a hole from a broken rod the other is complete but is frozen from sitting to long. both have factory carbs one with a aluminum adaptor on top.
 
bigborecharlie

bigborecharlie

Location
texas
upon closer inspection I have found a crack in the pipe that's probably why It was not mounted when it came with ski.
I will look at getting it repaired and then repost it. thanks for letting me know what the model of pipe is.
 
bigborecharlie

bigborecharlie

Location
texas
Took pipe to welder he called and said it is not a crack it is just the casting on the expansion chamber' pm for details and phone number I can send you pictures. pipe looks good has some water spots couplers look good with no rips includes all clamps. bolt hole for expansion chamber to manifold looks good and has rubber bushing and what looks to be like a flanged (star) spacer in the middle of rubber. price is based on a search on here of what other pipes of same model have sold for. pipe is located in the Houston area 350$ local pickup 400$ shipped.
 
Last edited:
623pwr

623pwr

Location
Off Site
I ended up buying the pipe. I'm really impressed with chamber. The chamber is 3/16" to 1/4" thick and it looks like a real durable pipe. I'll be able to get a review in a couple months after the thaw. Thanks to Charles for the easy transaction.
 
Blaker

Blaker

Location
Canada
623pwr said:
I ended up buying the pipe. I'm really impressed with chamber. The chamber is 3/16" to 1/4" thick and it looks like a real durable pipe. I'll be able to get a review in a couple months after the thaw. Thanks to Charles for the easy transaction.
Click to expand...

Hey how is the pipe? Was it worth it?
 
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