NoPistons -Mazda Rx7 & Rx8 Rotary Forum
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NoPistons -Mazda Rx7 & Rx8 Rotary Forum (https://www.nopistons.com/)
-   2nd Generation Specific (https://www.nopistons.com/2nd-generation-specific-17/)
-   -   your/best exhaust setup...Tech talk (https://www.nopistons.com/2nd-generation-specific-17/your-best-exhaust-setup-tech-talk-54155/)

j9fd3s 11-02-2005 01:19 PM
Originally Posted by Baldy' post='774769' date='Nov 2 2005, 05:33 AM

Looking on racingbeat's site, what's the purpose of a megaphone for exhaust?


thats for the imsa cars, that setup is 2x42mm pipes, they collect somewhere around the rear axle (230mm long), and then theres that collector and megaphone tip. its super duper loud, like you can hear it across the paddock DURING a race loud.



might be a good way to go from one size pipe to another though

defrag010 11-09-2005 08:21 PM
Originally Posted by Cheers!' post='774774' date='Nov 2 2005, 05:59 AM

By slowing the flow you are dissipating energy which is sound energy.
thats not how sound works, its irrelevant in fluid dynamics. The (mega) (phone) is called that for a reason. https://www.nopistons.com/forums/pub...#>/BURNOUT.gif

fc3s4utnv 11-09-2005 09:49 PM
Originally Posted by NoeVuh' post='774428' date='Oct 31 2005, 10:57 PM

Yeah, im interested. What do you expect out of it, any ideas?
Im hoping for 150's at the highest, but Im expecting 130's to 140's.


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