At 11:00 PM 5/17/99 -0500, we got some some E-mail from Matthew W Peterson.
>Now that I have my car running as well as I can get it I'm turning my
>attention to my exhaust system. My car has been very loud since a hole
>developed in my muffler and I am thinking of replacing it. I have a few
>questions.
>
>1. Should the exhaust pipe on both sides of the muffler be the same
>diameter? The way mine is set up now the tailpipe coming out of the
>muffler is about a quarter of an inch narrower than the exhaust pipe
>going into the muffler. This seems weird to me.
It is weird, but not really a problem - the gas is hotter on the intake
side of the muffler, so it needs more room (skipping the oft-quoted laws of
gas physics, thank you oh so very much!); on the outlet side, the gas is
cooler, so the smaller pipe is okeydokey. Still, though, I'd suggest 2"
all the way.
>2. I've heard talk of "glass packs". What do these sound like in
>comparison to a standard muffler?
Glass packs are essentially straight tubes with little baffles that direct
the noise to the fiberglass packing. The problems with these are first
off, they're loud, secondly, the 'glass packing burns away, and they get
really loud. They are best suited to resonator duty than main muffler.
The sound quality (ignoring quantity for a sec') is coarser and harsher
than a turbo muffler.
>3. Any recomendations on what to put on a daily driver 1600? I don't
>want it too loud but I would like to be able to hear a nice purr from the
>exhaust.
I had 2" pipe put on my '66 - with the Dynomax Super Turbo muffler located
under the driver's floor instead of behind the rear axle. The result was
AMAZING. A little bit of mellow burbling around town, but dead silent on
the highway - really really really well suited to a 1600.
HTH,
____ Kyle Hagemann, Born-Again Grease Monkey From Beyond
_.;(____\____ 72 240Z, L28, 5spd, poly, etc. - The Z-Beast
| _ | | _'@`, 69 2000, U20, shagadelic baby! - El Projecto
`-(@)------(@)-; 84 Maxima, 280ZX in sedan disguise - Mr. Max
http://www.sonic.net/~kyle 240Z tech info, Win95/8 theme, etc.
"Experience is a crutch for the ingrained...."
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