Tony, Definitely. But as to whether the existing mounting is enough for an SS
one, would be nice to know.
My PO had missed the two hanging brackets, plus one of the silencer brackets
had no rubber mount and had fine nuts on coarse bolts! (rattling about loose as
they were only jammed on that one turn). Result was system was hitting the car
and also lots of noise at the back. Fixed it up and it sounds so much quieter.
Plus less straining on the pipes now that they are supported. But I really want
(and anyway it will soon need relpaced due to how it was before) that new
system and I would like it to last and give a little more bhp.
Alan
Original Message:
-----------------
From: Tony Childs tochilds@ix.netcom.com
Date: Thu, 6 Jul 2000 11:30:42 -0400
Subject: Re: Weld Breaks on SS Headers
I'm no expert on this subject by any stretch of the imagination, but is this
not one of the reasons that most exhaust hangers incorporate a flexible link
of some sort. be it a strap or a "doughnut" of sorts. The entire system
tends to rotate slightly with engine torque. Helps to decrease the stress
on the header/head junction. Also helps decrease noise transfer through the
body and/or frame. Just my 2 pence!
Tony Childs
72 Spitfire - FK38809U
----- Original Message -----
From: "Douglas Braun & Nadia Papakonstantinou" <dougnad@bellatlantic.net>
To: <Teller.John@orbital.com>; <spitfires@autox.team.net>
Sent: Thursday, July 06, 2000 11:16 AM
Subject: Re: Weld Breaks on SS Headers
>
> I wish I could find a decent flex-joint that I could add to
> my exhaust. Any leads, anyone? At one point, I had
> a foot-long section of that cheesy spiral-wound flexible pipe
> between the header and the main pipe, but it fell apart after
> a couple of years.
>
> If you look at the geometry of headers and how they attach to
> the engine, you will see that a rigid header+pipe setup
> can apply very high forces to the flanges, studs, etc...
>
> Doug Braun
> '72 Spit
>
> At 10:31 AM 7/6/00 -0400, Teller.John@orbital.com wrote:
>
>
>
> >My miserable 1985 Buick Somerset with a 2.5L 4 (completely unbalanced
mind you)
> >came from the factory with a welded together stainless steel manifold.
After
> >175K miles, it is doing just fine.
> >
> >The manifold is connected to the rest of the exhaust system through a
flexible
> >coupling consisting of a flange on the cat pipe and another on the
manifold with
> >a "doughnut" between them, all held together by two spring loaded bolts.
> >Perhaps the flexible coupling is what keeps the stiffer stainless from
breaking
> >its welds.
> >
> >Most of the vehicles in the Import Car Tuning magazines at the grocery
store use
> >a fancy flexible coupling between their SS headers and the rest of the
exhaust
> >system. Probably for that very reason!
> >
> >--- JST
>
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