Headers and CF Tune Pipes. Where To Buy?

[Martin Quartim]

Is anyone making headers and cf pipes?

Martin

[Randy Cuberly]

Randy Smith has headers and some pipes and is in process of making more pipes.  They should be available soon!

Contact Randy Smith at Aeroproducts, 678-407-9376

[Martin Quartim]

Randy Smith has headers and some pipes and is in process of making more pipes.  They should be available soon!

Contact Randy Smith at Aeroproducts, 678-407-9376

I sure hope Randy makes some pipes soon.

Martin






Martin

[frank williams]

Ed Skorepa (http://escomposites.com/) now makes a pipe for stunt.  Its a "dual cone" pipe of excellent quality that, in my opinion, works better than the normal "baffled" stunt pipe.  They never char or leak.  Aerospace grade carbon work.  He makes it with a curved exhaust stinger also not shown in his picture.  Suitable for a 60 to 75 engine.  Weighs roughly 1.8 oz.
Frank

[Dave Harmon]

Ed Skorepa (http://escomposites.com/) now makes a pipe for stunt.  Its a "dual cone" pipe of excellent quality that, in my opinion, works better than the normal "baffled" stunt pipe.  They never char or leak.  Aerospace grade carbon work.  He makes it with a curved exhaust stinger also not shown in his picture.  Suitable for a 60 to 75 engine.  Weighs roughly 1.8 oz.
Frank

Plus one on that Frank.

I have several of Ed's pipes and the quality is outstanding and they work great!

[Martin Quartim]

thank you Frank!

I will contact them.

Now I need to find the headers for OS46VF and PA 75.

Martin

[Randy Cuberly]

thank you Frank!

I will contact them.

Now I need to find the headers for OS46VF and PA 75.

Martin

I'm pretty sure Randy Smith has those!

Randy Cuberly

[RandySmith]

HI Martin
I am back making pipes again, I do have a very large BO  list, but will get them filled  and then will  have stock back up, so I will not have to start from scratch again  and will have  stock on the shelves, I also  have an order  going out to you soon  with  OS headers  and PA 75, these are the headers  I set aside for you
If you want further details  Email  me

regards

randy

[Martin Quartim]

HI Martin
I am back making pipes again, I do have a very large BO  list, but will get them filled  and then will  have stock back up, so I will not have to start from scratch again  and will have  stock on the shelves, I also  have an order  going out to you soon  with  OS headers  and PA 75, these are the headers  I set aside for you
If you want further details  Email  me

regards

randy

Hi Randy,

I should be on your BO list, I email and order a long time ago

What about headers? are you making them also?

Martin

[Peter Nevai]

From what I understand the person who used to make the exhaust headers for the OS VF engines is no longer making them or has passed on. So if you can find one get it quick as there are no new ones being made.

[Casey]

Anyone tried Ed Skorepa's pipe on a PA 75?

[katana]

Apologies if this is off topic but i'm intrigued by use of pipes with stunt applications? As I understand it, a tuned pipe will 'reinforce' power in a narrow band - usually max rpm for racing applications, are these pipes being 'tuned' for lower rpm's to coincide with usual stunt rpms? And doesn't this rely on a super steady engine run to avoid being 'off the pipe' and losing power? Just trying to understand the thinking behind it as a lot of this stuff is like the 'dark arts' 

[Steve Helmick]

Stunt pipes are designed to regulate the engine and limiting the power at modest rpm. I'm sure somebody will be along soon to give the details of how it works. I don't really care how it works, as long as it does.

I have been flying two piped planes over the last 7 or so years, and found them to be trouble-free...but I suspect, not something that'll survive a lot of crashing. Luckily, I haven't proven that theory! As I understand it, both Randy Smith and Dubby Jett sell stunt pipes and headers. Ed Skorepa sells pipes, but I don't know that he sells headers. I just call Randy. But I did come up with a 2nd owner deal on a "Utah" (Skorepa) pipe, and it's a lovely piece of CF work that is uber light and really a piece of art.    Steve

[Brett Buck]

Apologies if this is off topic but i'm intrigued by use of pipes with stunt applications? As I understand it, a tuned pipe will 'reinforce' power in a narrow band - usually max rpm for racing applications, are these pipes being 'tuned' for lower rpm's to coincide with usual stunt rpms? And doesn't this rely on a super steady engine run to avoid being 'off the pipe' and losing power? Just trying to understand the thinking behind it as a lot of this stuff is like the 'dark arts' 

    It's hardly the dark arts, nothing has been documented in more excruciating detail than tuned pipe operation and setup.

     What you do is set the band of maximum enhancement to be at an RPM slower than you run in flight. If the engine slows down, the enhancement goes up, if the rpm goes up, the enhancement is reduced. The effect is to act as regulator of RPM rather than an power enhancement. It's entirely unnecessary to enhance the power of even a schneurle 40, much less a 75, in order to fly a stunt plane, so the power enhancement feature is not important aside from being able to use it as a regulator. In level flight, I think the pipe is probably have a net negative effect on the level flight power, that is, it would have more power at the in-flight RPM if you ran open exhaust.

     If you like math, figure the open-exhaust torque and hp curves being modified by a sine wave which peaks at an RPM lower than you would run in level flight. Frank Williams has plots of the difference the pipe makes.

      Brett

p. s. corrected typo, thanks Allan