Scorpion db Noise level

All the info you need to race E30's

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12345kevin
E30 Zone Camper
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Post Mon May 28, 2007 1:54 pm

Anyone used a Scorpion back box on a 325 at Trackdays ? whats the approx db reading. I've got a trackday booked for end of June at Brands and need to know if I have to fit the standard exhaust for the day ?

Thanks
oguz327
Captain Armco
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Post Thu May 31, 2007 10:41 pm

You should be fine, ive done 2 track days at Castle Combe both with scorpion, one with standard manifold and one with BTB2 and the max reading was 91db i think.
Limit at Combe was 100db but no idea what it is at Brands.
salami
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Post Fri Jun 01, 2007 10:36 am

i had mine checked before i went on at donnington and with center and back box got 76db but with track noise the chap thought i would be around about 98db on the track sensor so i just got a cheep back box to put on.
87 325i
bmwscorpion
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Post Sun Jun 24, 2007 8:53 pm

I have used mine at Donington, Full System
records low 90's never been above 94Dba. You shouldnt have a problem.
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maxfield
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Post Sun Jun 24, 2007 8:54 pm

You should be fine, plenty of C/F'ed airboxes on that day and the are much louder.
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Jon_Bmw
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Post Sun Jun 24, 2007 9:53 pm

Kevin rev it to 4500rpm and hold in there(once warm, not e28 styleeee) and see what it sounds like from behind. Quite a lot of these exhausts go quietish there. My dads 200sx is so council at 1000rpm but at 4500 its fairly quiet. 100db is facking loud.
12345kevin
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Post Tue Jun 26, 2007 8:23 pm

Had it tested today at the PBMW trackday, 94db at 4500 revs :D Was one of the quietest cars there !