aluminium mod chamber vs carbon chamber

[the WaTeRhAwK]

I made your chamber if it's the cobalt blue one in the pics.





Like this one?

P.S. Also a pic of the blue one before it was ever run.

those are some awesome chambers, charles. best work I've seen.

 

[cookerq62]

The blaster mod killed my power curve everywhere-felt as if trailer was still attached to the ski. LOL
chambers.

Did you run the mod super dry? It took me forever to get the water jetting correct on mine. You have to cut almost all of the water out of the stinger. I also had to rejet. The blaster mod pipe is bigger making it run cooler. Once I had it setup it blew away my limited and dry limited in throttle response, feel, and power. The mod also has a ton more over rev. My ski was propped low and it would touch the rev limiter in a straight line with the limited chamber if I got way back trying to top it out. The blaster mod would bounce off the limiter in a straight line no matter what the attitude of the ski.

I don't see how saving 2lbs on a 300lb ski for $400 sounds like a good idea unless nothing was spared on the ski. People buy these chambers for the cool factor not the power or the weight and I wish this topic would die. If you want more power and less weight go buy some AV gas. Its like the people who spend $25k on a Prius because it is good on gas.

 

[the WaTeRhAwK]

People buy these chambers for the cool factor not the power or the weight

that's not true, if what matt just said is correct, and I'm quite sure that it is. carbon as a self-insulator traps heat inside the chamber, thereby keeping hot exhaust temps INSIDE the chamber instead of dissipating them out of the material of the chamber itself. hotter temps inside the pipe means faster return waves to the exhaust ports, directly resulting in more hp attainable from the engine.

 

[tightithrash]

personly I have not used the carbon chamber but what people have told me is that it's a complete POS. It doesn't resonate like a regular chamber and resonation is KEY! Maybe it runs cooler but does a regular one get super duper hot enough to make a difference..... No......

The carbon looks bïtchin for sure but from what I hear..... Pos.

 

[the WaTeRhAwK]

personly I have not used the carbon chamber but what people have told me is that it's a complete POS. It doesn't resonate like a regular chamber and resonation is KEY! Maybe it runs cooler but does a regular one get super duper hot enough to make a difference..... No......

The carbon looks bïtchin for sure but from what I hear..... Pos.

resonance is based on a materials' reflex properties, that chamber is only going to go so far before it returns the "favor", resonant-wise, and with as much hp as these big engines make on their own, I don't think the "resonance" factor is going to make much difference as long as the temps inside the pipe are kept hot enough not to slow the return wave down that the cylinders use to scavenge fuel. carbon fiber in a matrix is hard as a rock, and it doesn't soften and/or stretch with heat like metal does. and if the chamber is cool to the touch when it's running, that means the resin is well protected from the heat inside the chamber softening it. so, as someone earlier in this thread stated, I'd like to see some dyno results by comparison before I make any final decisions based on materials.

 

[the WaTeRhAwK]

personly I have not used the carbon chamber but what people have told me is that it's a complete POS. from what I hear..... Pos.

here's something else you may want to consider: are the people that are telling you this "bolt-on junkies"? or are they true seasoned tuners that know what the hell their doing? now, before you decide to answer that, or take it personal and cop a tude, seriously consider the question. granted, it's not a stainless or aluminum chamber, but carbon fiber in a matrix like that is super hard, it has a supererior compression strength, so it should resonate and reflex sonic waves quite well, especially if it's in more than a few layers, and I'm sure it is, without even guessing.
regarding the performance aspect of the chamber itself, that element is going to boil down to what particular mods are done to an engine. if someone says a particular chamber is a "POS" and someone else says it rips, then do some comparing of mods and see what's been done to either setup, then make the conclusion as to who of the two doesn't know wtf they're talking about. that would be the safest bet IMO.

 

[Etheraldreamer]

sounds like a logical argument on both sides. i too would love to see some actual dyno numbers but i dont think thats very likely to happen.

but from the number of posts in this thread i think this is a question that's been on a lot of peoples minds.

 

[the WaTeRhAwK]

sounds like a logical argument on both sides. i too would love to see some actual dyno numbers but i dont think thats very likely to happen.

but from the number of posts in this thread i think this is a question that's been on a lot of peoples minds.

well, atleast some factual findings based on ones own personal research, rather than word of mouth, would be great. Like Gil just said, he switched them both out and didn't feel the slightest bit of difference, and he's got a 10g setup in his boat. the only pipe that made that much difference was the mod chamber, and he said it sucked.
so, basically, on his particular ski, it parred with the metal chamber without difference, but was better than the mod chamber (that's because the mod chamber detuned his engine, after it was tuned to work with the b pipe.)

PS. Gil, you would've had to rejett your carbs with the mod chamber to get rid of the "trailer" effect...lol

 

[yamanube]

personly I have not used the carbon chamber but what people have told me is that it's a complete POS. It doesn't resonate like a regular chamber and resonation is KEY! Maybe it runs cooler but does a regular one get super duper hot enough to make a difference..... No......

The carbon looks bïtchin for sure but from what I hear..... Pos.

From somebody who has actually run one and not just speculating I can say that it is not a POS. Like I said before, I have no idea if it actually would dyno less or more horsepower but seat of the pants it is equal to any metal chamber I have ridden. On top of that it is a piece of art and crammit is an artist. People can bash it up and down but my setup rips. I run all screws closed and the stinger blocked off :bigok:
If somebody can supply a motor and a metal chamber I am pretty sure I could get some dyno time...hell I may be able to run it anyways. If I can get it on the dyno in the near future I will post results compared to a couple different setups..stay tuned.

I don't see how saving 2lbs on a 300lb ski for $400 sounds like a good idea unless nothing was spared on the ski. People buy these chambers for the cool factor not the power or the weight and I wish this topic would die. If you want more power and less weight go buy some AV gas. Its like the people who spend $25k on a Prius because it is good on gas.

If you just leave, the thread will go on without you and the world will keep turning without your input. How do you expect to shave weight and gain power with AV gas?

 

[FL-cracker]

Carbon chambers are so cool... everone buy them up.

Anyone that has a nice limited or mod Aluminum chamber please PM me I need one.:1zhelp:

 

[restosud]

avgas is lighter than pump gas and could give more beans if motor needs it.
carbon chambers are nice to look at.after all,this is what this sport is about right?
carbon has it's place but a pipe is really not.
give us carbon cases and pumps instead.

 

[iptamenos]

the different between limited b pipe and modified b pipe is only the chamber or also in the other parts of b pipe (ex head etc)

 

[Matt_E]

The difference is in the chamber only.

 

[iptamenos]

thanks guyz but like i see we didn't decide , everyone had his opinion ..
from the thread and the people i had spoke the" carbon lose power "
but is sexy light and cools faster .
the aluminium seems to work fine but the only problem is that become "hot like sh*t" ......

 

[SkiNaked]

I would guess they are similar in performance. But who knows. I know they look cool and if your looking to "pimp your ride" the carbon is probably the way to go. I have a polished TNT chamber now going on my non PV Dasa/Lamey motor that is sitting at Blowsion. Hull is pending paint. I have ran Blaster MOD and both SJ limited and Mod on my Squares and liked them all. I am staying with the SJ MOD chamber now. The key is to find the pipe you like best and tune your motor to work with that setup. My motor seems to hit sooner with the MOD chamber compared to the limited. The Blaster MOD worked well also but the one I had was ugly. So I sold it.

 

[meatball]

technically speaking, the exhaust gases inside a carbon chamber should be HOTTER then the aluminum counterpart, because the aluminum 'cools' the exhaust gas via conducting it, making the aluminum pipe hot. So I really dont understand why wamiltons says its cooler, to the touch maybe, but inside? No chance in hell unless you change thermodynamics.

Theres a reason they dont make heat syncs out of carbon fiber, because it wouldnt cool the processor.

If you want cooler exhaust gas temperatures, then weld cooling fins on the exhaust chamber, just like a processor heat sync.

 

[the WaTeRhAwK]

I think what wammer is saying is that because the pipe runs hotter on the inside, you can get more performance out of your engine by adding more water without cooling off the exhaust flow too much to slow down return wave.
you don't wan't exhaust temps to be "cooler" because cooler exhaust temps will de-tune an engine and limit the rpms' peak, as well as slows the graduation time up to rpms' peak level.

 

[yamanube]

Also, you do not have a huge aluminum body heat soaking your engine compartment.

 

[iptamenos]

6 years ago i had the red riva pipe i remember that after a ride the pipe was hot
a lot .If during the ride the water hit the pipe and become steam so the carbs dring all the stram creating problem (according to some people here) but this never happen my jet was flying until i sell my pipe.
so the aluminum chamber i am thinking to create any steam problem

 

[HBCwatercraft]

I tested the alum limited with my carbon hybrid limited
with a stainless inpreg heat coating inside and other than the pipe being lighter and cooler to the touch there were no diff between the to. This was a 45 min straight run test,several times.