Exhaust?
10-19-2002, 12:59 AM
#1
Guest
Posts: n/a
Exhaust?
OK.........V-8's sound deep and powerful and 4 bang'n ricers sound like loud farts. What do v-6's sound like? Anybody that reads this, please give a rundown of your exhaust system, and what it sounds like. (If you have links to recordings list those too)
Thanks
Thanks
10-19-2002, 07:48 PM
#3
The Evil Twin
Join Date: Mar 2001
Location: Seattle, WA
Posts: 9,294
Re: Exhaust?
The exhaust tone, produced by the engine itself is not relative to the number of cylinders but to the air capacity of each cylinder.
The 4 cylinder L20b (found in 70s datsun trucks and cars) has a larger capacity per cylinder than the L28 found in the 280ZX. Therefore it will sound much deeper than a striaight six given the same exhaust system. A 1.8L Harley Davidson motorcycle only has 2 cylinders, but each one is about 900cc so it sounds really deep. The L20b has 500cc per cylinder and the L28 has 467cc.
Cylinder size, exhaust manifold, pipe size, and muffler style effect the sound that leaves the car. here's what I think about them in general.
Headers are louder than a cast iron exhaust manifold, but not nessisarily deeper.
The larger the pipe size all the way back, the louder and deeper the sound.
Certain mufflers can make an L28 sound like a fart can. My stupid Flowmaster almost does that to my Z.
Straight-through design mufflers have a much more deep and rastpy sound at idle but are much louder at higher RPM.
I heard a very nice sounding 240Z that was deep at idle and not very loud at all inside the car and outside. It had a 2.8L engine, cast iron manifold that was ceramic coated. It used a 2.5 inch pipe through a resonator and then through a straight-through design Dynomax muffler in the rear.
Using a resonator near the front of the exhaust system decreases the noise that goes out the back of that resonator. Therefore less soundwaves are vibrating around the remainting pipe. You gain some extra quietness by having a resonator up front. Also, dual exhaust is much louder. When all the air flow and noise from each exhaust port flows together into one pipe, somehow they cancel each other out a little and produce less noise.
The 4 cylinder L20b (found in 70s datsun trucks and cars) has a larger capacity per cylinder than the L28 found in the 280ZX. Therefore it will sound much deeper than a striaight six given the same exhaust system. A 1.8L Harley Davidson motorcycle only has 2 cylinders, but each one is about 900cc so it sounds really deep. The L20b has 500cc per cylinder and the L28 has 467cc.
Cylinder size, exhaust manifold, pipe size, and muffler style effect the sound that leaves the car. here's what I think about them in general.
Headers are louder than a cast iron exhaust manifold, but not nessisarily deeper.
The larger the pipe size all the way back, the louder and deeper the sound.
Certain mufflers can make an L28 sound like a fart can. My stupid Flowmaster almost does that to my Z.
Straight-through design mufflers have a much more deep and rastpy sound at idle but are much louder at higher RPM.
I heard a very nice sounding 240Z that was deep at idle and not very loud at all inside the car and outside. It had a 2.8L engine, cast iron manifold that was ceramic coated. It used a 2.5 inch pipe through a resonator and then through a straight-through design Dynomax muffler in the rear.
Using a resonator near the front of the exhaust system decreases the noise that goes out the back of that resonator. Therefore less soundwaves are vibrating around the remainting pipe. You gain some extra quietness by having a resonator up front. Also, dual exhaust is much louder. When all the air flow and noise from each exhaust port flows together into one pipe, somehow they cancel each other out a little and produce less noise.
10-19-2002, 07:56 PM
#4
Guest
Posts: n/a
Re: Exhaust?
I am running 21/2 exhaust from the header back to a flow master. No cats no resonator, just straight pipe. It sounds loud, louder than most V8,s. The downfall is I cannot use my cell phone while driving and my stereo has to be cranked just to here it. It has a pitch that changes and sings as you go through the power band. I love to come to a light and just throw revs for the shear fun of it. And when you down shift the sound is beyond comprehension. I love my exhaust system I would recommend it to anyone.
One side bar if you see a cop find the highest gear you can to get the rpm,s down below 1100.
Friends dont let friends drive anything but a Z.
One side bar if you see a cop find the highest gear you can to get the rpm,s down below 1100.
Friends dont let friends drive anything but a Z.
10-20-2002, 05:23 AM
#6
Guest
Posts: n/a
Re: Exhaust?
I belive motorsports sells a dual exauhst kit in there catalog, not positive ...
www.zcarparts.com
you can order the catalog there
To deny our own impulses is to deny the very thing that makes us human...
www.zcarparts.com
you can order the catalog there
To deny our own impulses is to deny the very thing that makes us human...
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