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Old 04-12-2010, 07:50 PM   #28 (permalink)
BGTV8
A True Z Fanatic
 
Join Date: Dec 2009
Location: 03350 Australia
Posts: 1,514
Drives: 09 Nissan 370Z M6
Rep Power: 39974
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Like I said, its a custom system to make sure it was legal - I had a 3" system on ly last car (Impresa STi) that caused enormous problems with the EPA.

CAMS sprint regulations call for < 75Dba at 30 metres drive-by under full throttle and EPA rules are <82Dba measured 1 metre from exhaust outlet, at 45 degree angle at 65% rev's (about 4800 in 370Z). It is all about how you put the mufflers together. System is still being refined as we try different mufflers.

Since I have a motorsport background, I am using one of my motorsport contacts from Ballarat ... when we get the system completely tuned - I'll publish all the details. Being built in midl-steel to keep the research costs down, but once we have it all done, can be spec'd up in stainless.

The Zed is my daily driver - but unles you are up at 6:00am, you are unlilely to see me as I am an early starter ()and late finisher) in the CBD.

I also have a Marque Sports car which I have run in the Victorian Sports Car championships since 1988 - cannot compete with the latest Porsches but can still keep up with early 90's Porkers and such-like.

The Zed gets a spanking every now and then - corporate drive days at Sandonw and the occaisional sprint event - I will be entering the MSCA sprint at Philip Island on 30-May to give it its next spanking ~!~~!!! ....

Oil cooler, sump extender and NISMO finned diff cover were fitted by Dontex Automotive in Vermont - they are good guys.

Parts all purchased from Kyle at Import Parts Pro in Spring, Texas who has always done me a good deal.

Last edited by BGTV8; 04-12-2010 at 07:58 PM. Reason: Add detail
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