|
Quite Sidepipes?
I am thinking of putting side pipes on, but I am unsure if it is possible to get them quite enough to pass the noise test without loosing heaps of power. Any one done this, or do I just go with under car exhaust. My engineer says I can get an exception for the sidepipes.
|
Talk to Rob. He is a member here using the nick renovationinnov.
He was at my place recently and I was super impressed with how quiet his side pipes were. |
hi cobra killer
I have just passed the db test by 1 db with live side pipes as before I have seen lukey mufflers in Brisbane & got my internals of the mufflers in the side pipes turn so as the vent/ scales inside are facing the direction of flow so as to in trap I have cats near my headers 200 ppm that's it no tother way for baffling was fitted can send you some pics but only to mobiles [ as not that smart to be able to post rob |
what is the DB level you must not exceed?
Dwight in Alabama USA no DB requirement here so they can hear me 1 1/2 miles at 6000 rpms:LOL: |
I think the test involves a stationary test and a drive by test at wide open throttle, have to read up a little more on the test procedure but I think the noise level cant exceed around 92 db. Much the same as any current model car has to pass.
|
Different states do it in different ways, but in Vic I believe it's a stationary test and 89db
|
| All times are GMT -7. The time now is 10:43 PM. |
Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
The representations expressed are the representations and opinions of the clubcobra.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners, moderators, Shelby American, any other replica manufacturer, Ford Motor Company. This website has been planned and developed by clubcobra.com and its forum members and should not be construed as being endorsed by Ford Motor Company, or Shelby American or any other manufacturer unless expressly noted by that entity. "Cobra" and the Cobra logo are registered trademarks for Ford Motor Co., Inc. clubcobra.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). Thank you for visiting clubcobra.com. For full policy documentation refer to the following link: