Short notice - I need to make sound!
10-09-2015, 12:17 PM
#1
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Thread Starter
Short notice - I need to make sound!
There is an event I'd like to run in two weeks. The location has a 100dB sound limit. My car has a Corsa Extreme exhaust on it and there is no way it isn't over 100 dB.
Ideas? Can I bolt on some silencers to the four tips? Any chance the extra restriction will cause the car to run lean?
Thanks in advance.
Ideas? Can I bolt on some silencers to the four tips? Any chance the extra restriction will cause the car to run lean?
Thanks in advance.
10-09-2015, 12:35 PM
#2
Team Owner
what year?
How about getting the aftermarket thing that will make it like the NPP exhaust with the baffles that open and close?? Or put a resonator on it.
10-09-2015, 12:53 PM
#3
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Thread Starter
10-09-2015, 01:06 PM
#5
Team Owner
NPP works as follows.Below 3500 rpm's (or something like that) it's a quiet,stock.no sound exhaust.Above 3500 RPM'S or when you hit a button on a remote if you get that accessory, there is a baffle that opens up and it basically becomes almost a straight pipe kind of exhaust. There are after market vendors who sell kits for it.I don't know if there is one for the C5 Z but very possibly.I almost was going to say yours has it but that's the c6 Z. search NPP on the forum. CORSA PROBABLY MAKES A SYSTEM LIKE THAT and I know BORLA does.
10-09-2015, 01:22 PM
#7
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Thread Starter
NPP works as follows.Below 3500 rpm's (or something like that) it's a quiet,stock.no sound exhaust.Above 3500 RPM'S or when you hit a button on a remote if you get that accessory, there is a baffle that opens up and it basically becomes almost a straight pipe kind of exhaust. There are after market vendors who sell kits for it.I don't know if there is one for the C5 Z but very possibly.I almost was going to say yours has it but that's the c6 Z. search NPP on the forum. CORSA PROBABLY MAKES A SYSTEM LIKE THAT and I know BORLA does.
10-09-2015, 01:37 PM
#10
Team Owner
Ah, IC. That system won't work then. They test sound at a location where the cars will be at the top of the rev range and wide open throttle.
10-09-2015, 05:07 PM
#17
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Thread Starter
10-09-2015, 07:18 PM
#18
Pro
I bought my 2002 Z with Borla Stingers already on it. Too loud of a drone for me. Picked up the stock Ti back end on Craigslist and bolted it up to my AR headers / X pipe.
Last edited by SunnydayDILYSI; 10-09-2015 at 07:20 PM.
10-12-2015, 03:28 PM
#19
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Thread Starter
I just need < 100 dB at full throttle.
10-12-2015, 04:50 PM
#20
bolt on turn downs (like dryer conduit) can help, but not by much. I've also seen people put steel wool in their exhaust tip then cover it with some metal screen and a hose clamp. It works well for Autox, but I don't think it would last long enough for a track event.