Tuned pipes for dummies....feedback sought???

[Fletcher, Richard]

Hiya Bob!

    Glad to be able to contribute one to you who has given all of us so many
good ideas. What happened was the Pefa canisters on my 3W 150 were running
so hot that they burnt right through tie raps, neoprene O-rings and silicon
fuel tubing. So I had to figure something out. I went to a Pep Boys and
found that the highest temperature rating on gasket material they carry is
350 so I bought a roll of it. Then I figured if I added the coating of
orange RTV that it MAY do the job. In order to not distort or dent the cans
on the mount I also cut up tuna fish cans which is soft steel. So I wrapped
the home made gaskets and steel bands, about 1 1/2" wide, around the
mounting points on the cans and then attached the cans to the plywood fuse
mounts with pieces of baling wire. It has held up very well. I just fitted
my big IMAC plane with pipes and used this gasket material in a similar
mounting arrangement and so far so good.



Thanks, Rich     


 

-----Original Message-----
From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org] On
Behalf Of Bob Pastorello
Sent: Wednesday, August 18, 2004 5:21 PM
To: discussion at nsrca.org
Subject: Re: Tuned pipes for dummies....feedback sought???


That's a GREAT idea, Richard!!! NEVER even thought of a "make your
own"....and for me, THAT is pretty amazing....thanks for sharing that one.
It goes in my "tips" folder.

Bob Pastorello
rcaerobob at cox.net
www.rcaerobats.net


----- Original Message ----- 
From: "Fletcher, Richard" <Richard.Fletcher at gs.com>
To: <discussion at nsrca.org>
Sent: Wednesday, August 18, 2004 4:16 PM
Subject: RE: Tuned pipes for dummies....feedback sought???


> Best thing to do is to insulate the pipe from the mount and clamp or
O-ring.
> Best material I have found is high temperature RTV gasket material. I 
> make my own using automotive high temp gasket material rated at 350 
> degrees and laminating high temp RTV onto it by placing two parallel 
> pieces of 1/8
balsa
> spaced about 4 inches apart on the automotive gasket material and then 
> squeegee on the RTV. I had to develop this technique for mounting
canisters
> and pipes on my gas engines which run even hotter then 4S engines.
>
>
>
> Rich
>
>
>
> -----Original Message-----
> From: discussion-request at nsrca.org 
> [mailto:discussion-request at nsrca.org]
On
> Behalf Of White, Chris
> Sent: Wednesday, August 18, 2004 4:12 PM
> To: discussion at nsrca.org
> Subject: Tuned pipes for dummies....feedback sought???
>
>
> help????
>
> I have a new Arresti III that will be using a YS 140 FZ and the new
coupler
> from Central with an (enclosed) ES carbon fiber pipe and the Hyde ARIA 
> mount. Merle Hyde says the pipe needs to be pretty flexible in 
> mounting to avoid header breakage. He also warns to tighten the hyde 
> mount screws aggressively.
>
> My thought was to mount a single clamp on the CG of the pipe with a 
> Dave Brown hush clamp pipe mount.  (O ring retention on a composite 
> clamp)
I
> have used this mounting style very successfully on a Greve pipe / 
> Webra
145
> combo, but have questions about the durability based on what I hear 
> about pipe heat increase when running a 4 stroke.
>
> Can anyone tell me whether they have experience with the Dave Brown mount
> and four stroke pipes?   Do carbon fiber pipes get hotter than aluminum
> ones???  How do you typically retain a carbon fiber pipe without 
> worrying about pipe distortion?
>
> Chris
>
>
> -----Original Message-----
> From: discussion-request at nsrca.org 
> [mailto:discussion-request at nsrca.org]On
> Behalf Of Richard Strickland
> Sent: Wednesday, August 18, 2004 2:36 PM
> To: discussion at nsrca.org
> Subject: Re: Dented pipe
>
>
> Depends where they are.  If not too far in from the charge end, a 
> mandrel 8-18" OAL from 3/8" steel round with about a 15 degree kink in 
> it 2" from the(to be) rounded end or so clamped in a vise works 
> reasonably well for wheedling them out--kind of like the paintless 
> dent removal guys use.
There
> are also sheet metal suckers--but I'm not that familiar with them.  Or
turn
> the dent toward the fuse--dents do not affect performance detectably.
>
> RS
>
> ----- Original Message -----
> From: "Fletcher, Richard" <Richard.Fletcher at gs.com>
> To: <discussion at nsrca.org>
> Sent: Wednesday, August 18, 2004 12:53 PM
> Subject: Dented pipe
>
>
> > I just received my new OS 160 pipe and the gorillas at UPS were true 
> > to
> form
> > and stomped on it and it now has a couple of dents. Does anyone know 
> > how
> to
> > remove them?
> >
> >
> >
> > Thanks, Rich
> >
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