> Feel free to copy the list for archive proposes if this info
> suits your needs.
Thanks Dave, I will! The archives are a valuable resource, and
are about to get more so! Here goes....
I have a NOS 3:2:1 system on my 69 [GT6] which resembles the
"factory" headers offered by Moss... and looks identical to "RG
1279" picture.
My system, custom built at a Minute Muffler location, involves a
straight pipe 2.25" in dia (see comp prep book), ends just
before the rear valence, where it forms a "T". From there, on
each side there is a Dynomax "bottle resonator" about 4" x 16" ,
a 90 deg. turn and out through chrome tips.
With both pipes open, the noise is deafening at certain engine
RPM's... like up to about 2800 RPM. By plugging one side with a
rubber sewer backup plug (imagine the comments THAT gets!) the
resonance disappears and the car is quiet enough to listen to a
"pioneer 20w x 4" cassette deck powering a pair of MB Quart 5.25"
2 ways located in the dogleg behind the seat.
The Header is a great piece, although mine sits below the frame
rails by about 1". Lowering springs and low profile tires =
dented pipes and/or a broken header. Back to stock now, I have
not since scraped it on anything.
The custom exhaust cost me about $250 Cdn including about $40 ea
for the resonators, $25 each for chrome tips. Labor was about
2.5 hours, but included "design time".
Done again, I'd definitely go with the header but I would also
want the centre pipe resonator (bulging pipe shown in pictures)
piece installed. From there, personal taste dictates the
finish. Going with a 2" pipe may improve low end torque a bit,
but I find my "stock parts car engine" with 160 psi compression
as fast as any TR6 in city driving, and much faster in highway
passing (aerodymanics + light weight + ....)
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--
Douglas Frank Compaq Computer Corp. Larceny, n. A sturdy fiber
ZKO 110 Spit Brook Rd. of which the human heart is
603-884-0501 Nashua, NH USA 03062 more or less composed.
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