Can anyone identify this blaster pipe

surfjunkie

surfjunkie

Location
deland fl
Friend bought a ski with this pipe. He says no markings other than my701b and castco on manifold.

Thanks for any help.
 

Attachments

  • image.jpg
    image.jpg
    102.9 KB · Views: 164
  • image.jpg
    image.jpg
    106.3 KB · Views: 158
  • image.jpg
    image.jpg
    109 KB · Views: 161
surfjunkie

surfjunkie

Location
deland fl
i thought westcoast too but they have two sections for the expansion chamber, this has one solid piece. coffmans i found werent the same. really got us stumped. he needs some bushings / dampners and doesnt know what to order
 
surfjunkie

surfjunkie

Location
deland fl
appreciate the guesses but google shows those as two piece chambers as well. had forgot about them so i very much appreciate the attempts!!

its very odd that there is no brand stamped or any identifying markings. ????
 
rhugo21

rhugo21

Location
Hermosa Beach, CA
Maybe a Coffman rocket pipe welded together and modified? Same manifold I had on mine in this pic 2 years ago. Just a guess...
44cbaa77ff0a1e76ef4d818075b27921.jpg



Sent from my iPhone using Tapatalk
 
Big Kahuna

Big Kahuna

Administrator
Location
Tuscaloosa, AL
Looks like stamped steel/alum construction welded together vs the Cast of the Coffmans. Could also be a one off type design like KHI (Kawasaki Heavy Industries) use to make for the Team skis. Darin Hedlund would make those.
 
surfjunkie

surfjunkie

Location
deland fl
Manifold has a bracket where two dampners mount side by side and mount to a bracket off exp chamber. Brackets are horizontal. Chamber is very light (not thick like cast coffmans)
 

Attachments

  • image.jpg
    image.jpg
    110.5 KB · Views: 90
  • image.jpg
    image.jpg
    101 KB · Views: 86
  • image.jpg
    image.jpg
    127.4 KB · Views: 94
scottie mac

scottie mac

X-
Depends on what you are after. The dry/semi dry blaster pipes tend to make more upper rpm hp, but are off on the low end. Most would add water injection to make up the bottom end on a non full out race set up. Compression helps, too, but you have to make the decision if you want to run race fuel or not. If you are into surf riding, I'd stick with a B pipe derivative. The dry/semi dry pipes definitely pull harder from 4K on up and usually would gain an additional 250-400rpm up top.

SM
 
Quinc

Quinc

Buy a Superjet
Location
California
scottie mac said:
Depends on what you are after. The dry/semi dry blaster pipes tend to make more upper rpm hp, but are off on the low end. Most would add water injection to make up the bottom end on a non full out race set up. Compression helps, too, but you have to make the decision if you want to run race fuel or not. If you are into surf riding, I'd stick with a B pipe derivative. The dry/semi dry pipes definitely pull harder from 4K on up and usually would gain an additional 250-400rpm up top.

SM
Click to expand...

I am thinking as a poor mans wet pfp on my freestyle ski. coffman/watcon sprayer right after the coupler.

12957197_1197059866992728_1345304759_n.jpg 12966565_1194233383942043_918133236_n.jpg
 
Quinc

Quinc

Buy a Superjet
Location
California
xXx Octane xXx said:
Sorry, this is off topic, but do you know what the history is on your pipe? It looks like the Hedlund cone pipe that the Speedwerx superjet pipes originated from.
Click to expand...
I emailed Mrs. Coffman and she said it looks like an old prototype pipe they made. Do you have any pictures of the hedlund?
 
xXx Octane xXx

xXx Octane xXx

X
Location
Minnesota
Quinc said:
I emailed Mrs. Coffman and she said it looks like an old prototype pipe they made. Do you have any pictures of the hedlund?
Click to expand...

John Quast at Speedwerx would probably be able to tell you more. The coupler and mounts look a lot more like the Coffman's but the shape is very similar to a Speedwerx expansion chamber (without the outer water jacket).
 
You must log in or register to reply here.
Top Bottom