Exhaust Volume

Thanks guys..

Really, fueltank, your car's under 90db? The engineer was giving me the impression that factory turbo cars were already on the verge of 90db.

Poid, I'm borrowing a stock exhaust and putting that on so hopefully this works out. Does anyone have jackstands or ramps I can borrow overnight? :) :)

Danny, it's a blue slip, I need to get the car in order before Thursday..thanks anyways!

Quote:

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Originally Posted by fueltank

my car is under 90db Ben.
I think they rev it @ 1/2 or 2/3 of your car's peak power from factory.
Testing needs to be done in I think a 3m by 3m square with the db meter @ a 45 degree angle.

I got the PDF of ADR procedure on measuring exhaust noise somewhere.

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I can't remember to be exact, but it's about 2/3's of your redline. For example, my wrx redline was 7000 and they tested it at about 4,500rpm.

It's not from your redline, it's from your 'peak power'

Ben, I got jack stands.

hay boyz all ive done in the past is make a restrictor plate. what that is, is imagin a plate with lots of little holes in it. it maks a big differance. and with price to get a db test should only cost about 60-80$ [/quote]

you can drill a little hole in for the silencer, done :D
add a resonator... change your exhaust....