Super Jet could be a stupid qustion, but what the hell.

[Matt_E]

Water can pretty easily back flow into the cylinders with that manifold design, having a wetpipe exaggerates this issue. I had to be very careful with the angle of my ski with my WDK wetpipe to not injest water while the ski was not running.

A waterbox typically solves that issue. :clown:

 

[yamanube]

A waterbox typically solves that issue. :clown:

You think? My waterbox always has water in it when I turn my ski off, I would venture to guess it is usually filled up to the bottom of the inlet/outlet. The waterbox might quite it down and slow down the rush of water backwards into the chamber but does nothing for the water that is already in the chamber.

 

[Billybo455]

i've heard that many times. never had that issue with the pfp or my wdk wet pipe. let noobie girls ride my ski and load from the back. same thing with noobie guys to.

 

[NVJAY775]

Semi off topic, but I will say when we put a type 4 fp on my kids stock 650 sn it was a whole new ski. WAY better hit throughout the powerband. I wish It was summer and I had my old hull to compare my fp limited chamber / xmetal box, against my kids type 4. I was very impressed with the type 4. Not even tuned properly, but the gains were awesome.

It sucks that it would take a whole lot of time and money, but It would be cool as he77 to see a comparison. Use an xmetal box, or whatever is comparable and run these pipes back to back and see what happens. PFP, FP B Limited and a FP Type 9 (updated type 4) all jetted decently. I also understand that there's pump setups involved, but...

Kind of a gut feeling, but I think the type 9 and the PFP might do better with decent jetting and pump set up than a Limited B...

Thoughts..?

 

[Stunts]

I had a type 4 on my old RN, had decent power, nothing crazy and the low end wasn't all that. New ski with similar mods and a b-pipe ltd and it hits so much harder! Unless your running a huge motor, I don't see the restriction in the b-pipe. I highly doubt you could just bolt the bpipe to the pf manifold either. I don't think there is any replacement for displacement.

 

[Billybo455]

that's because you didn't setup your ski properly. i talked superwetbrett into a speedwerx pipe for his jetmaniac motor in his rn. felt like a dog. did some thinking, pulled the stock waterbox for either one i made or a tdr. i don't remember. rejetted after a few loaded runs on a trailer and it was a night a day difference between the b pipe. his b pipe was up for sale a hour after that ride.

 

[Stunts]

Is that on a 701?

I don't see how a dry pipe will have more bottom end then a wet.

 

[Matt_E]

Jetting for a drypipe is different than for a B. You can't just throw it in and expect it to work.
Higher compression and advanced timing also helps.

 

[Billybo455]

it was a 710 i think. dry pipes are nasty when setup. but you have to set them up. if i can help it. i'll never run another b pipe ever again.

 

[B3IS]

Drier faster right ???

 

[Stunts]

I bought both skis suposedly tuned (probably factory pipe settings), I never touched either of them. Just going off my experience. From what I have read, dry pipes make more power and will be faster (guess thats what you see a lot of racers using them, more mid/top power, but apparently that is changing?).

 

[waxhead]

Factory pipe jet specs are safe not fast. that will be the issue why it didnt as well as it could

 

[NVJAY775]

What differences are there in jetting between a wet and dry pipe? If I switched to say a speedwerks from my current limited b, which direction would I have to go with my jetting?

Huge thanks fellas, this is a really good read.

 

[CARBONX2]

so guys. i have herd from certain people that the problem with the B-pipe for power is that the manifold is at too steep of an angle.... so i thought, what would happen if you used a Power Factor style manifold and just connected a limited pipe to it? would it just be crap or, tuned correctly, could something like this create some power. keep in mind this would be for a 701- under 900.

DISCUSSSSSSSSSancake:

I am working on new chambers for my Gen2 X-2 for flatwater.
There are 2 problems, the 1st is in the first part of the chamber: Take a look at the new sxr wetpipe compared to the old b-pipes, sxr wetpipe carries angle of cast section into chamber, on a b-pipe the angle of the chamber is greater from the coupler. The longer 1st diffuser angle creates more low-end torque, similar to pfp design.
PFP end of 2nd diffuser should be longer to spread power more, but it will reduce peak hp.
The b-pipe manifold is restrictive, see : http://www.x-h2o.com/threads/64583-Soft-moulding-material-B-Pipe-Moulded!

 

[stefan]

I am also running a dry pipe (type 4) on a Jet Maniac 718 cc motor, I toll Chris may setup an hee sende me high speed jettes that was 2.5 bigger than what they used on a B pipe and it worked after som screws ajusting. I have also run a B pipe back too back with my dry pipe, the b pipe was alot more quiet and the hit came on alot faster. But the mid ran of the dry pipe i like alot more soo dont think i am giving up on my dry pipe.

 

[special fx]

I am working on new chambers for my Gen2 X-2 for flatwater.
There are 2 problems, the 1st is in the first part of the chamber: Take a look at the new sxr wetpipe compared to the old b-pipes, sxr wetpipe carries angle of cast section into chamber, on a b-pipe the angle of the chamber is greater from the coupler. The longer 1st diffuser angle creates more low-end torque, similar to pfp design.
PFP end of 2nd diffuser should be longer to spread power more, but it will reduce peak hp.
The b-pipe manifold is restrictive, see : http://www.x-h2o.com/threads/64583-Soft-moulding-material-B-Pipe-Moulded!

Wow...That's cool and informative.....Thanks!! It's also the first thread I've seen in a long time that didn't include drama.....that was refreshing.