Please help ID this pipe

[750sx1992]

I bought these skis off a guy in Oklahoma or Arkansas in 2007 or 2007, hide them for a while then moved to Hawaii. Couldn’t bring them with so “sold” them to a cousin. He never paid a dime. I’m back home and he gave them back in various stages of disrepair. Neither has been run for 10+ years. I’m starting to make a plan for going through them etc.

I just got the life of me can’t figure out which pipe this is. I’ve spent countless hours looking at SJ pipe pictures and none match this pipe.

I can’t say I’ve ever seen an expansion pipe where the exit isn’t at the end of the chamber. This one drop out of the bottom.

Thanks in advance.

 

[750sx1992]

Wow, I never thought to look at other boat types. So it’s a blaster chamber in a RN? That’s going to make tuning interesting for an idiot like me.


Thanks for the info!

 

[WFO Speedracer]

Most likely it will tune in just fine

 

[fastgtfairlane]

A riding friend tested the blaster mod like you have with a superjet mod chamber on the same ski with same engine etc and found that the sj chamber had slightly more ok the bottom but the blaster chamber pulled a bit harder from 1/4 throttle up to max rpm. I believe he had to add a little more fuel down low on the blaster chamber. The center bleed will make more power than the straight through design such as the sj chamber. Plus the center bleed just looks cooler in my opinion

 

[DylanS]

This was pretty common and sought after not that long ago, you’ll find the centerbleed chamber hits real good when you’re all tuned in. You’ll like it, keep it and run it dude.

 

[fastgtfairlane]

I also like the idea of the chamber being bolted in place instead of relying on the hoses and coupler to keep the chamber together. I've had the coupler clamps come loose while riding and didn't even notice. The mount kept rhe chamber in place even with the coupler loose. I don't have a blaster chamber but a tnt super stock chamber which is also a center bleed pipe.