Dixis or Gruppe M backbox???? - Page 5

**shimmy** · 07-06-2010, 08:51 PM

Quote:

Originally Posted by Thorney

Been measured at 98db at Donington, but will ship with a special extension to bring it down to 95db. I won't deny it's been made for performance and noise so it ain't quiet

driveby?

shane@mbtech · 07-06-2010, 09:15 PM

Quote:

Originally Posted by shimmy

driveby?

98 static is not really loud loud so will be interesting to see if driveby or static

**shimmy** · 07-06-2010, 09:17 PM

Quote:

Originally Posted by lawsy

98 static is not really loud loud so will be interesting to see if driveby or static

my SS race b/box is 96-98 static so must surely be driveby

**glendog74** · 07-06-2010, 09:18 PM

My SS race back box + SS un-resonated centre section was 100dB at Spa.

I was usually 97dB like Shim without the SS centre section.

Thorney · 07-06-2010, 09:24 PM

Static

shane@mbtech · 07-06-2010, 09:25 PM

I could probably do a custom 200 cell race cat full exhaust with centre exit for £750 fitted. Only problem is as I say noise. Ill do some work on it, and try to get carbon made for the diffuser.

It would be considerably lighter, ill work on it over the summer.

How many boxes did it have John, to get it to 97 static.

Thorney · 07-06-2010, 09:25 PM

Although weirdly enough the old race system tested today at Castle Combe at 103db, went out, got it hot and down to 100db, track measurement is hardly a science.

**shimmy** · 07-06-2010, 09:27 PM

Quote:

Originally Posted by lawsy

I could probably do a custom 200 cell race cat full exhaust with centre exit for £750 fitted. Only problem is as I say noise. Ill do some work on it, and try to get carbon made for the diffuser.

It would be considerably lighter, ill work on it over the summer.

must be tested and fitted for Spa 4/5 Ocotber

shane@mbtech · 07-06-2010, 09:30 PM

Quote:

Originally Posted by shimmy

must be tested and fitted for Spa 4/5 Ocotber

Think I am In florida then shimmy, go out 2 nd week in september for 3 weeks.

Ill get one tested/fitted v soon for development purposes.

shane@mbtech · 07-06-2010, 10:13 PM

Titanium back "box", if you could call it that weighs 6.3lbs compared to standard back box of 52.3lbs. Saving 46lbs. or just over 20kg.

Considerable weight saving.

http://www.horsepowerfreaks.com/imag...xhaustNew4.jpg

07-06-2010, 09:18 PM	#44
glendog74 CSL Register Uber-poster! Tetris Champion! Join Date: Apr 2008 Location: Cornwall Posts: 8,861 Casino cash: $32309	My SS race back box + SS un-resonated centre section was 100dB at Spa. I was usually 97dB like Shim without the SS centre section. __________________ Cha'mone Mother F**ker!

07-06-2010, 09:24 PM	#45
Thorney S5 - Full Throttle Join Date: Sep 2007 Posts: 469 Casino cash: $3876	Static __________________ http://www.thorneymotorsport.co.uk

07-06-2010, 09:25 PM	#46
shane@mbtech CSL Register Uber-poster! Join Date: Feb 2009 Location: warrington Posts: 5,419 Casino cash: $19783	I could probably do a custom 200 cell race cat full exhaust with centre exit for £750 fitted. Only problem is as I say noise. Ill do some work on it, and try to get carbon made for the diffuser. It would be considerably lighter, ill work on it over the summer. How many boxes did it have John, to get it to 97 static. Last edited by shane@mbtech; 07-06-2010 at 09:29 PM.

07-06-2010, 09:25 PM	#47
Thorney S5 - Full Throttle Join Date: Sep 2007 Posts: 469 Casino cash: $3876	Although weirdly enough the old race system tested today at Castle Combe at 103db, went out, got it hot and down to 100db, track measurement is hardly a science. __________________ http://www.thorneymotorsport.co.uk

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07-06-2010, 10:13 PM	#50
shane@mbtech CSL Register Uber-poster! Join Date: Feb 2009 Location: warrington Posts: 5,419 Casino cash: $19783	Titanium back "box", if you could call it that weighs 6.3lbs compared to standard back box of 52.3lbs. Saving 46lbs. or just over 20kg. Considerable weight saving. http://www.horsepowerfreaks.com/imag...xhaustNew4.jpg