Exaust

[springs fastest alero]

Originally posted by 00AleroV6@Dec 27 2004, 11:17 AM
i wonder if edel brock mufflers would fit

muffler is a muffler
if your going custom you could do anything as far as fitment

[springs fastest alero]

Originally posted by Final-Reality@Dec 20 2004, 07:39 PM
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At high RPMs, the exhaust gasses are obviously going to be travelling at a higher speed, so efficient exhaust scavenging is really most important at lower RPMs. There, the exhaust gasses are travelling more slowly and the vacuum created by the exhaust gasses is more important.

It's sort of hard to explain, so hopefully you understand what I'm saying.

what he said :thumbsup:

tempreture as well plays a part in how fast the exhaust gas moves
the hoter you can keep the gasses in the exhaust the faster they will move as well
this is why there are also performance gains to good coatings on headers and such not just looks.

To get the best of both worlds ( low and top end) a few cars have come with what I call a variable flow exhaust system
at low rpm's they use a single muffler or exit, when vacuum drops or rpm increses they open up to a second muffler or exit.

One thing I'm considering on my car is an rpm controled cutout for the track
but being I'm going full 3" I"m not sure what it will gain from a cut out up top

[springs fastest alero]

for those really after true dual
here are some things
the 04 malibu has exhaust manifolds that run the pipes seperate into a y
picking up their exhaust manifolds would allow for true dual
the cats either bolt or are part of the manifold though.

one thing that needs to be considered is if you go true duals you need to figure out o2 sensor placement
the sensor needs to read both sides of the engine or you would need to split the signal and run 2