The Great Sounds of the Automotive World

  • Thread starter CodeRedR51
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Thought I'd give this thread a bump.

Most of you on here have likely heard the Mazda 787B. It's a fabulously horrifying noise. The engine, of course, is a R26B 4 rotor. Now the engine in the 787B uses, for I presume packaging reasons, a header configuration that merges all four exhaust ports into one outlet. However, there exists another configuration. Mazda's IMSA GTO warriors also used the four rotor engine, but the exhaust had a 4-2 merge but didn't merge further, so that the system has two outlets. Without the second merge, the exhaust takes on a much more layered, lower pitched, and rich sound, rather than the typical scream we associate with the 787B. So here it is:

 
Eunos_Cosmo
Thought I'd give this thread a bump.

Most of you on here have likely heard the Mazda 787B. It's a fabulously horrifying noise. The engine, of course, is a R26B 4 rotor. Now the engine in the 787B uses, for I presume packaging reasons, a header configuration that merges all four exhaust ports into one outlet. However, there exists another configuration. Mazda's IMSA GTO warriors also used the four rotor engine, but the exhaust had a 4-2 merge but didn't merge further, so that the system has two outlets. Without the second merge, the exhaust takes on a much more layered, lower pitched, and rich sound, rather than the typical scream we associate with the 787B. So here it is:

<a href="http://www.youtube.com/watch?v=zZjmRy0OpK4">YouTube Link</a>

First thing that came to mind when I saw this thread title was the 787B. Idle sounds amazing.
 
Nice videos slashfan... Just out of curiosity how much weight is that '79 pulling?

<a href="http://www.youtube.com/watch?v=G6VxausP2HA">YouTube Link</a>

Thanks but I'm not sure. I couldn't find the weight in the comments. Probably very high though.
 
Just out of curiosity how much weight is that '79 pulling?

Looks like a 20 (long) ton sled to me (around 45,000lbs). Pulling makes me laugh, the best way to pull something like that is to stick your tractor/4x4 in anti-stall and crawl along, not floor it.
 
Looks like a 20 (long) ton sled to me (around 45,000lbs). Pulling makes me laugh, the best way to pull something like that is to stick your tractor/4x4 in anti-stall and crawl along, not floor it.

I was thinking about 50,000 but I didn't say anything because I wasn't sure. I figured that would be a good ballpark figure.

I was impressed he did it on 2 wheels all the way down the track.



EDIT:


This is totally unfair so don't comment on that but listen to dat Ford F-250 ROAR. YUMMY! That is what a real motor sounds like :lol: God I love it.


 
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There might be some, but that's simply the sound a highly tuned six cylinder engine with six individual throttles under full throttle. See this video of the BMW M1 for a similar sound:



The sound of the air being compressed into the intake trumpets is louder (from in the cabin) than the sound of the exhaust. My RX-7 is the same way. It's awesome.

It sounds a lot more distorted with speakers. Try some good headphones if you have some.
 
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No distortion on the M1 vid, it sounds awesome.

It must just be the mic on the Porsche one.


Speaking of which, about a year ago I saw a GT3 RS 4.0 lapping at a track.
It sounded really nice, and VERY loud.

 
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