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Exhaust note I love

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Old 12-07-2012, 06:09 AM
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Default Exhaust note I love

Been looking an looking an I found the exhaust that I love no rasp just some popping I like when shifting. what's popping caused by is it high flow cats?

http://youtu.be/ylSvnnE7FjQ
Old 12-07-2012, 06:24 AM
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Originally Posted by blkgagt94
Been looking an looking an I found the exhaust that I love no rasp just some popping I like when shifting. what's popping caused by is it high flow cats?

http://youtu.be/ylSvnnE7FjQ
Could be several things.. A lot of times less back pressure will cause the "popping" sound..... =Very high flowing exhaust.
Old 12-08-2012, 10:33 PM
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I thought it had something to do with not all the fuel being burnt as well?

Said something like that on Top Gear, a newer sports car had some sort of system that introduced a tiny amount of fuel into the exhaust so it did that on every gear change.

Pretty cool idea, anyone else remember that?
Old 12-08-2012, 10:54 PM
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I will say this in the link that guy is not fooling around on the dyno pulls. That is the fastest I have ever seen done.
Old 12-09-2012, 08:29 AM
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my car pops like that when the cut out is open
Old 12-12-2012, 03:38 PM
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My car also makes those popping sounds. LS1 with headers with true duals.
Old 12-12-2012, 03:59 PM
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My car pops with just a corsa catback, not the best video, but gives you an idea. It is more prominent when driving


Last edited by 94 White T/A; 12-12-2012 at 04:06 PM.
Old 12-12-2012, 05:13 PM
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My car pops, lt's, sweet thunder true duals dumped. I think you would like the sound
Old 12-13-2012, 11:10 AM
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I'm running true dual I don't get a popping sound ??
Old 12-13-2012, 03:42 PM
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Popping is probably fuel dumped and burning in the pipe;
the PCM is always a little behind and abrupt airflow
changes are not well tracked. So it's shooting fuel
for 6000RPM when you've shifted down to 4500, for
a few spins.

Exhaust plumbing will affect the sound volume of this,
but I doubt it's responsible for the occurrence. Though
a somewhat bent tune resulting from plumbing changes
and no, or sloppy post-tuning, is not uncommon.
Old 12-13-2012, 09:40 PM
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I get the popping sound when the car isn't warmed up yet. If I ride the gear up to around 2500-3000 before I shift and I'm under, give or take a bit, but 160* on the gauge I get a loud pop or two before I can get it into the next gear. Just pretty much stock ls1 motor with lm1. Have had headers sitting in the garage for 2 weeks now, just can't find the time to install them. I personally don't like the popping sound. Reminds me of my v6 with flowmasters, did that crap all the time. Guess I'll find out what the headers and ory do.
Old 12-13-2012, 10:10 PM
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Originally Posted by happysem
I thought it had something to do with not all the fuel being burnt as well?

Said something like that on Top Gear, a newer sports car had some sort of system that introduced a tiny amount of fuel into the exhaust so it did that on every gear change.

Pretty cool idea, anyone else remember that?
Are you talking about anti-lag for turbo cars?
Old 12-14-2012, 02:29 AM
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Originally Posted by 94 White T/A
My car pops with just a corsa catback, not the best video, but gives you an idea. It is more prominent when driving

What kind of camera are you using? Video and audio quality both are great.
Old 12-14-2012, 08:35 AM
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Originally Posted by z-camaro
Are you talking about anti-lag for turbo cars?
http://www.youtube.com/watch?v=HhFFJgmhnIs
That's pretty cool. Reminds me of this...

The popping you usually hear is unburnt fuel being burned in the muffler or at the exhaust tip. Hence the 'pop' is because it usually echos in the muffler or as it hits oxygen.

Old 12-14-2012, 08:41 AM
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That Vette sounds sick. I love it.
Old 12-14-2012, 09:08 AM
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Thats my buddy's vette, been telling him for years its the best sounding LS...other than an LS7 that is. Its definitely not caused by cats on his car lol, I will say that. It sounds much better in person too
Old 12-14-2012, 09:23 AM
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Even the modded ls7 and ls9 I've heard in person didn't sound that nice.
Old 12-14-2012, 03:05 PM
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Originally Posted by cranny
What kind of camera are you using? Video and audio quality both are great.
Samsung S1050 digital camera. Makes pretty good videos. I like how true the recorded sound is to the original. My dad found it in a parking lot, so you can't beat it for the price, haha
Old 12-14-2012, 11:15 PM
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Not really sure the reason but all of the Vette's make the popping noise and I freaking love it. With stock exhaust you can't hear it as much but add headers and its pure ear pleasure. Here is mine.

Old 12-15-2012, 10:45 AM
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the popping noise is unburnt fuel hitting hot pipes.

my car pops like crazy and it's not because of a "low restriction" exhaust setup lol. i'm sure the 2.5" y pipe exit isn't helping matters. esp given that both the inlets are 3". thanks tsp haha they fail to mention that about their new ss y pipes.



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