search | help | calendar | games | forum home » Hello Spec Miata Community » National Auto Sport Association » NASA Central » 105dB limit at Autobahn Email this page to someone! | Subscribe To Topic   Author Topic: 105dB limit at Autobahn Glenn B Junior Member Car #: 76 Year : 1992 Posts: 4 Status: Offline posted         I just purchased a spec miata and am planning to run it in NASA HPDE at Autobahn this weekend (7/22-7/23). The car has a Dynaflow muffler and I would classify it as fairly loud. However, I'm new to this racing game and don't have a feel for how loud 105dB is. Just wondering if I should be concerned. wheel Member Region: kc Car #: 20 Year : 92 Posts: 1801 Status: Offline posted         That's very loud. I think they bounce you at 103db at the Runoffs, as I recall. spdmonkey Moderator Region: OVR Car #: 08 Year : 95 Posts: 644 Status: Offline posted         105 dB would be akin to Toyota Atlantic or other high revving pure race engines. Its not impossible for a street engine to get there, but its probably rare. I have seen SM's at 100dB many times and every now and then at 102-3dB. Having done Sound Control at a dozen or so races I would tell you that you are gonna be just fine with the dynaflow muffler. As always though YMMV. db Glenn B Junior Member Car #: 76 Year : 1992 Posts: 4 Status: Offline posted         Thanks for the info. I've since learned it's much louder inside the car than out. So, I'm sure I'm not even close. Printer-friendly view of this topic | Subscribe To Topic Hop To: Select a Forum:   Category: SpecMiata.com -------------------- Spec Miata Spec Miata Garage Spec Miata Rules & Competition Spec Miata Competition Tires Spec Miata Safety Spec Miata Setup Guide Spec Miata Data Acquisition NASA PTE/E3 Spec Miata to FProd SMulators Spec Miata Frequently Asked Questions Showroom Spec Miata Pro Miata Spec Miata Enduro Spec Miata Virtual Swap Meet SMTV Back Fire Announcements   Category: Spec Miata Archives -------------------- Spec Miata 2001-2009 Garage 2002-2009   Category: Sports Car Club of America -------------------- SCCA North-East SCCA South-East SCCA Great Lakes SCCA Central SCCA Mid-West SCCA South-West SCCA Rocky Mountain SCCA North Pacific SCCA San Francisco Region SCCA South Pacific   Category: National Auto Sport Association -------------------- NASA Discussion NASA Northeast NASA Southeast NASA Central NASA Midwest NASA Northwest NASA Southwest   Category: Mid Western Council -------------------- MWC Discussion

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