Custom/Hybrid Pipe question

[leedesigns148]

Can a Pipe be made out of fiberglass? I have seen them made with carbon fiber but I was wondering if they could be made of fiberglass.

 

[leedesigns148]

So can anyone tell me if this will work or not?

 

[snowxr]

A pipe chamber could be built frome fiberglass, but would need to be much thicker/heavier to provide the same or similar resonance as a carbon or aluminum chamber. Making a B-pipe chamber thicker would cause clearance, fit, and performance issues. Fiberglass itself won't burn, but may not be a good choice of material for an exhaust system.

 

[leedesigns148]

Thanks for the info. Its well taken.

 

[munki63]

You will loose heat power with a carbon/glass chamber

 

[Tyler Zane]

heat power? please explain...

 

[munki63]

Im not sure exactly how to explain it but I'll try, Typically the hotter you can get your pipe the more power you will produce, a ceramic coated pipe will reflect the heat, carbon/fiberglass will absorb the heat... Reason heat produces power is because the intake and exhaust ports are roughly at the same height. When the piston exposes the ports the fresh fuel comes in and the exhaust goes out. But when your exhaust isnt hot enough some of the fresh fuel leaves the cylinder with out being ignited... When you have a hot exhaust when the exhaust port is exposed the hot exhaust keeps the un-burnt fuel in the cylinder...

This is why your B-Pipe is supposed to sizzle, its just hot enough not to melt your hull

Edit

Haven't you ever heard of the term "heat is horsepower"?

Keeping the heat inside the exhaust chamber will increase the sonic wave reflection and will make the pipe perform better.

The chrome ceramic coating should last forever and it won't turn that ugly dark grey color like the chrome powder coatings.

 

[Tyler Zane]

There are carbon chambers out there and I believe they preform well. If anything it may perform better because it doesn't act as a huge heat sink. #zero is talking about keeping the heat in the chamber by coating it with ceramic, not the temp of the chamber itself. The ceramic is acting as a insulator for the very conductive aluminum, keeping the temp up inside the chamber. I did not know it will aid in cylinder scavenging, tho.

Snowxr hit the nail on the head about a fiberglass chamber. Carbon would be the way to go if you want composite.

 

[snowxr]

Snowxr hit the nail on the head about a fiberglass chamber. Carbon would be the way to go if you want composite.

I'm a smartie! :silly:

 

[Tyler Zane]

I'm a smartie! :silly:

Your smarter than the average bear, ill give you that. :biggthumpup:

 

[munki63]

I know what #zero was talking about it was my thread, a carbon chamber won't work as well as a metal one

 

[DarkWater]

Has anyone tried the carbon then aluminum chambers back to back? or dyno test them?
I have an aluminum mod chamber and i have a carbon chamber. Ones is for my ski and the other for my girlfriends ski . I have researched this a LITTLE and i haven't found any concrete evidence either way.
Once i get both skis all together and dialed in, ill do some swapping and testing. But that's at least a month out.

 

[kev.t]

aren't the carbon chambers just fibreglass(about 8mm thick) with a layer of carbon on top to make them look nice?
the outside dimensions are the same but a lot of volume is lost inside the chamber because of the thick walls.

 

[kevbo]

aren't the carbon chambers just fibreglass(about 8mm thick) with a layer of carbon on top to make them look nice?
the outside dimensions are the same but a lot of volume is lost inside the chamber because of the thick walls.

It takes about $400 of carbon to get an 8mm thick chamber. What do you think they are selling? A composite pipe must be round with no flat spots in order to work well and save weight. A sheet metal dry pipe is by far the best power adder there is for the weight and price.

 

[kev.t]

what i was saying is that so called carbon pipes aren't carbon at all. just glass with carbon layed up on top.
the shape of these pipes on the inside (where it matters) is rubbish.

 

[Tyler Zane]

i highly doubt HBC is half assing carbon pipes.

 

[kev.t]

i highly doubt HBC is half assing carbon pipes.

just saying what i've seen.........it wasn't HBC BTW.

 

[egbrig]

I will simplify this---- sound travels faster the hotter the temp inside the pipe. Composit pipes will not work as good as a metal and aluminum does not work as well as stainless steel, the reason: you want the pipe to have a resonance (vibrate). Aluminum doesn't make a good bell but it works good enough, is lighter and easier to work with, any composite doesn't even work, stainless works very well. A pipe works off of the sonic wave action (such as a bell that rings) so why would you make a pipe out of a composite? Because those that do don't know how a pipe works or don't care and want to sell you something to make money and you'll pay it because its pretty and it must work or why would they make it. I have heard of a composit pipe being dyno'd and it made about 10 less hp than its aluminum counterpart. I have done some dyno work with some pipes and you would be surprised at how much power can be made/lost with small changes in heat and stinger diameter.

 

[HBCwatercraft]

At the end of the day just remember some of the best riders and high hp setups use carbon technology expansion chambers.
My testing is they work just fine with no issues as long as there built and baked with the right resin and the layup
is correct. We use carbon all the way threw (Not just a visual part).

 

[Tyler Zane]

HBC, yall have some beautiful composite parts.