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 db-killer, yes or no?

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Matias
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Matias


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PostSubject: db-killer, yes or no?   db-killer, yes or no? Icon_minitime1Thu Sep 22, 2022 12:26 pm

Guys,

Forgive me for insisting with this one...
I posted the same text in an old thread, but maybe everybody is tired of it and not reading anymore. I would really appreciate your feedback about this

I have this QD exhaust in my 1100.
I'm not a very big fan of loud pipes, so I kept the db-killer. But I had allways the impression that this db-killer could be very restrictive...Even though it is a straight open tube, it has only 26mm of ID...
Can this create overpressure in the exhaust system?
Thanks guys
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Pete Roper
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PostSubject: Re: db-killer, yes or no?   db-killer, yes or no? Icon_minitime1Thu Sep 22, 2022 3:06 pm

Leave it in. Any performance gain will be so minimal as to be unnoticeable. It may [i]feel[i] faster because it's noisier but it won't be.
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JohnA
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PostSubject: Re: db-killer, yes or no?   db-killer, yes or no? Icon_minitime1Fri Sep 23, 2022 3:47 am

What Pete said……
My MIVV pipe has about the same ID exhaust exit….
Runs great with a Beetle map
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Matias
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Matias


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PostSubject: Re: db-killer, yes or no?   db-killer, yes or no? Icon_minitime1Fri Sep 23, 2022 3:57 am

Thanks guys. I will keep it in...
It"s just because I had recently to repair exhaust leaks and I started thinking I could have too much pressure on the system.
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Pete Roper
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PostSubject: Re: db-killer, yes or no?   db-killer, yes or no? Icon_minitime1Fri Sep 23, 2022 5:07 am

Exhaust physics is not simple.

I've given up arguing with the 'Loud Pipes' brigade. It's not worth the craic.
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beetle
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PostSubject: Re: db-killer, yes or no?   db-killer, yes or no? Icon_minitime1Fri Sep 23, 2022 3:30 pm


What Pete said. You need a PhD in Fluid Dynamics to truly understand exhaust gas flow.
Your 26mm port is perfectly fine. The 29mm port in the exhaust of my 1400 GRiSO is fine.





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Converted Duc
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PostSubject: Re: db-killer, yes or no?   db-killer, yes or no? Icon_minitime1Sat Sep 24, 2022 4:00 am

I have used the Mistral Hi with and without the db and also the Termi with and without. My thoughts are that yes I love the rumble but definitely feels flatter and uses more fuel with it out. I say leave it in.
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Matias
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PostSubject: Re: db-killer, yes or no?   db-killer, yes or no? Icon_minitime1Sat Sep 24, 2022 7:31 am

We better get one of these 😁:
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