Super Jet Having problems with first ski

[Matt_E]

Both a wet pipe and a dry pipe have cooling lines going into them. A dry pipe has a cooling jacket around the chamber, but it doesn't inject water into the exhaust stream.
What you have on those pictures is a dry pipe.
You can install a water injection kit on a dry pipe (sounds like you have this) and it'll start having some characteristics off a wet pipe.

 

[Stunts]

So if wet pipes are better, supposedly have more low end and seem to be more reliable by being able to run a lower octane, why does everyone get a dry pipe? I tried finding a wet pipe for the SJ and there doesn't seem to be many out there? The factory B pipes that everyone goes crazy for are all dry right? Just doesn't make sense to me, I must be missing something. I have a factory B ltd chambered pipe on my new ski, I am assuming that is dry as well, yet it was built for the surf and has crazy low end. I am thinking about switching over to a wet pipe then to prevent needing higher octane and more low end, that'd help right?

 

[JonnyB]

Factory B-pipe is a wet pipe. Water is injected in the exhaust before the expansion chamber to cool the chamber. While with a Dry-pipe the pipe has a jacket around the chamber to cool the chamber down. with a wet pipe water is always being injected into the pipe the water slows down the sonic wave that gives it the low end grunt. While a drypipe normally has its peak power in the top. Installing water injection in a dry pipe has the same kind of effect as the wetpipe but then shuts off at a certain RPM so the pipe is then dry and it screams on the top. I hope this helps and isn't confusing

 

[Stunts]

Makes sense, thanks for the post! Thanks Matt E and everyone else for helping me out as well. I am hopefully taking all 3 skis out today as long as it doesn't storm.

 

[Stunts]

Took the skis out yesterday, all running good. Then this SJ wouldn't start anymore, I think it got flooded. It might not be getting spark, having checked that yet, but the ebox came loose from the firewall and I think maybe a wire came loose inside perhaps? I'm really getting tired of this ski, I don't need two freestyle skis anyway, can't decide if I should part it out or just sell it as is. I have someone who wants my carbs though (novi maxiflow dual 48s) he will trade me stock 38s and $600, is that a decent deal? These carbs were over a grand new, came with the ski when I bought it. If I put those carbs back on and install the water injection, I think this ski will be a more fun freestyle ski.

 

[Matt_E]

No, you'll lose performance by going from those carbs to stock 38's.

 

[Stunts]

My new surf ski has the stock 38s with a B pipe, head and unbelievable low end. That is why I was thinking stock 38s to mimic my other ski? The guy has to trade dual blackjack 46s, dual fullspec 44s, dual stock 38s or dual retail 46s. I gotta figure out why it won't start first though.