Thunderhill, Noise limit of 103 dB |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
Thunderhill, Noise limit of 103 dB |
slivel |
Apr 7 2006, 08:12 AM
Post
#1
|
Old car....... older driver Group: Members Posts: 510 Joined: 10-July 04 From: San Diego Member No.: 2,332 Region Association: Southern California |
Has anyone run at Thunderhill who can comment on the noise limit of 103 dB. I have run at Laguna Seca at 93 dB limit and had to use mufflers to comply. Does 103 dB allow enough for an open exhaust?
Steve |
race914 |
Apr 7 2006, 08:20 AM
Post
#2
|
73 914-4 Group: Members Posts: 1,006 Joined: 31-October 05 From: Nipomo, California (Central Coast) Member No.: 5,027 Region Association: Central California |
With my 4 I run a Phase 9 and Supertrapp at Laguna to meet the 93db. I got a sound reading at the SCCA Vintage with just the Phase 9 at 95db.
I don't think I'd even be close to 103db if I removed the Phase 9... A few years ago at Laguna a 962 went above 103db but it was from the turbo, not the exhaust. Another point of reference. A 914-6 ran headers straight to megaphones at Thunderhill and was not called in. It was loud however (could hear it all the way around the track from the pits) and I wouldn't recommend that. |
Lo-Fi Version | Time is now: 1st June 2024 - 08:49 AM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |