Jetpilot Posted February 4, 2015 Share Posted February 4, 2015 Thinking it may be interesting/helpful to put up some db readings for different exhaust set up's as there are quiet a few track enthusiasts on here. So if you have some db readings from track days, perhaps list your set up, test criteria and what track. Quote Link to comment Share on other sites More sharing options...
Ekona Posted February 4, 2015 Share Posted February 4, 2015 It's a good idea, but what you really want to do is to get a bunch of Zeds with different setups in the one place on the one day, and record it that way. Maybe Wales? Quote Link to comment Share on other sites More sharing options...
Jetpilot Posted February 4, 2015 Author Share Posted February 4, 2015 (edited) Good idea also, but was thinking about testing equipment/methods at certain tracks as i am sure they will all differ slightly on both counts. Reason behind the thinking was i read a post earlier and someone mentioned Thruxton, they are 90db @ .5 metre (seems std distance) but at 3/4 revs (5250rpm), Combe is 4500 rpm . I would love to do Thruxton again but think a std Zed would struggle to hit that. Just an idea, more info the better i guess To kick it off: Castle Combe: 100db max @ 4500rpm from .5 metre 03 De with HKS True Dual std Cats 94db Would be very interested to know what a std car is Edited February 4, 2015 by Jetpilot Quote Link to comment Share on other sites More sharing options...
Ekona Posted February 4, 2015 Share Posted February 4, 2015 The standard is, as you say, 0.5m at 45deg from exhaust at 3/4 max rpm. Some places have different minds on what 3/4 rpm is though! Stock car is about 87dB from memory, when I had mine done. Quote Link to comment Share on other sites More sharing options...
Dave-350 Posted February 4, 2015 Share Posted February 4, 2015 I will be having mine tested this weekend. I will edit this once I know. Kakimoto Regu&R, Stillen Y-Pipe and BERK DE-CAT. Quote Link to comment Share on other sites More sharing options...
lmc Posted February 4, 2015 Share Posted February 4, 2015 Castle coombe 76 db Apexi back box with standard cats Quote Link to comment Share on other sites More sharing options...
Jetpilot Posted February 4, 2015 Author Share Posted February 4, 2015 Castle coombe 76 db Apexi back box with standard cats Wow, sure its not electric Lee Quote Link to comment Share on other sites More sharing options...
Ekona Posted February 4, 2015 Share Posted February 4, 2015 Yeah, 76dB is about as loud as me typing on this keyboard That's a mistake. Quote Link to comment Share on other sites More sharing options...
lmc Posted February 4, 2015 Share Posted February 4, 2015 Unless there equipment was faulty thats what was recorded. I must admit i was surprised myself. Quote Link to comment Share on other sites More sharing options...
buster Posted February 4, 2015 Share Posted February 4, 2015 96dB with bungs in at coombe......custom powerflow system with cobra y pipe and berks hfc s Quote Link to comment Share on other sites More sharing options...
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