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Posted by: nine14cats Jan 1 2004, 04:08 PM

Anyone have first hand experience with the db level of phase nines? Infineon recently instituted a 103 db level with one warning....I have a sub 100 db setup using a 911 banana that I use at Laguna Seca...but I'm hoping to get to play at Infineon with my new exhaust set-up...

Bill P.

Posted by: KenH Jan 1 2004, 05:06 PM

Check out: http://Http://www.victorylane.com/old/Feb98_Noise.html

Then check:
http://www.quiethorsepower.com/quiet_exhaust.html

Then call and talk to Pete Weber at Quiet Horsepower.

Then pray for no rain on 2/14-15

Ken

Posted by: nine14cats Jan 1 2004, 05:20 PM

Thanks Ken,

I'll check it out.....and yep...I don't want rain....praying already...

Bill P.

Posted by: Racer Chris Jan 2 2004, 08:13 AM

A single Phase 9 on a 4 cylinder will bring sound levels down to less than 95dB. I don't have data on six cyl. applications, but I think you will have no problem.

Posted by: KenH Jan 2 2004, 10:51 AM

Chris - Pete said you may noise numbers on the Phase 10 on 4 cyl 2.0.

Do you ?? - and if so is it mounted at the output of the header combiner box (4:1) or is there a length of pipe between the box and the Phase 10??

Ken

Posted by: Racer Chris Jan 3 2004, 02:21 PM

QUOTE(KenH @ Jan 2 2004, 11:51 AM)

Chris - Pete said you may noise numbers on the Phase 10 on 4 cyl 2.0.

Do you ?? - and if so is it mounted at the output of the header combiner box (4:1) or is there a length of pipe between the box and the Phase 10??

Ken

What's a Phase 10?

Posted by: KenH Jan 3 2004, 04:49 PM

I am sorry thought you knew. Pete Weber said you were making them. It is the muffler that look like a large coffee can on its side with the "in" at one end, and the "out" 180 degrees rotated at the other end.

May be I have you mixed up with sombody else.

Ken

Posted by: Racer Chris Jan 3 2004, 04:59 PM

QUOTE(KenH @ Jan 3 2004, 05:49 PM)

I am sorry thought you knew. Pete Weber said you were making them. It is the muffler that look like a large coffee can on its side with the "in" at one end, and the "out" 180 degrees rotated at the other end.

May be I have you mixed up with sombody else.

Ken

Oh, you mean one of these Quiet Cans:

I didn't know Pete called it a Phase 10.

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Posted by: Racer Chris Jan 3 2004, 05:04 PM

The only sound data I have for these is in a 4-2-1 system that includes a Phase 9 with the Quiet Can attached in series.

Sound readings are typically below 90dB at the track with this setup.

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