Fitz Posted September 19, 2013 Share Posted September 19, 2013 Here you go mate. Quote Link to comment Share on other sites More sharing options...
Benjy Posted September 19, 2013 Share Posted September 19, 2013 Here you go mate. £22k!? Quote Link to comment Share on other sites More sharing options...
Ian C Posted September 19, 2013 Share Posted September 19, 2013 The drone is a resonant frequency with the car body shell. Change the resonant frequency and the drone should go away. Hit your exhaust with a hammer in a few places and put dents in it to achieve this Quote Link to comment Share on other sites More sharing options...
Abz Posted September 19, 2013 Author Share Posted September 19, 2013 I have a suggestion that I don't think has been mentioned yet? Buy this t-shirt: http://www.pslteamsports.com/assets/images/clubshops/stirling%20boot%20camp/stirlingbootcamp_mtfu_tshirt_black.jpg I was just about to write Abz stop being a pussy when I seen this. Very good James that covers it It's not for me, the noise doesn't bother me really as I just drive faster until I can't hear much... it is only when my baby daughter is in the Supra that is all. I want to make sure I can still use with the little one around and not for it to sit there doing nothing. Here you go mate. Already got one of them Quote Link to comment Share on other sites More sharing options...
Benjy Posted September 19, 2013 Share Posted September 19, 2013 Already got one of them You've not only dropped in my estimations, but dropped completely out of them. Tree hugger. Quote Link to comment Share on other sites More sharing options...
Abz Posted September 19, 2013 Author Share Posted September 19, 2013 The drone is a resonant frequency with the car body shell. Change the resonant frequency and the drone should go away. Hit your exhaust with a hammer in a few places and put dents in it to achieve this Hammer or Mallet Ian? On second thoughts we got plenty of speed bumps... shall I just go over them, very quickly?! Quite a few times? You've not only dropped in my estimations, but dropped completely out of them. Tree hugger. Better not tell you that I sometimes cycle too then Quote Link to comment Share on other sites More sharing options...
Benjy Posted September 19, 2013 Share Posted September 19, 2013 Better not tell you that I sometimes cycle too then Lycra-clad, two-wheeled pedestri-mong!!!! Quote Link to comment Share on other sites More sharing options...
David P Posted September 19, 2013 Share Posted September 19, 2013 Better not tell you that I sometimes cycle too then Remember to wear your wellies. http://l3.yimg.com/bt/api/res/1.2/gsAg_JXKggzA54ZRYH.0Kg--/YXBwaWQ9eW5ld3M7Zmk9ZmlsbDtoPTQyMTtweW9mZj0wO3E9ODU7dz02MzA-/http://l.yimg.com/os/publish-images/news/2013-07-31/34f420c3-4465-498e-8d4c-cc48ba960aae_india-offbeat-010813-630-18.JPG Quote Link to comment Share on other sites More sharing options...
Abz Posted September 19, 2013 Author Share Posted September 19, 2013 Lycra-clad, two-wheeled pedestri-mong!!!! Yep I wear Lycra and yes I do punch pedestrians in the face Remember to wear your wellies. http://l3.yimg.com/bt/api/res/1.2/gsAg_JXKggzA54ZRYH.0Kg--/YXBwaWQ9eW5ld3M7Zmk9ZmlsbDtoPTQyMTtweW9mZj0wO3E9ODU7dz02MzA-/http://l.yimg.com/os/publish-images/news/2013-07-31/34f420c3-4465-498e-8d4c-cc48ba960aae_india-offbeat-010813-630-18.JPG Them wellies were a god send, what a moment of geniusness I had when I thought of popping and buying a pair of them! Quote Link to comment Share on other sites More sharing options...
Alex Posted September 19, 2013 Share Posted September 19, 2013 The drone is a resonant frequency with the car body shell. Change the resonant frequency and the drone should go away. Hit your exhaust with a hammer in a few places and put dents in it to achieve this I wonder if there's a rubber mat or paste compound you could apply to the exhaust to improve it. Ie dynamat but one which can take the heat. Does heat wrap change the tone by reducing vibration? Quote Link to comment Share on other sites More sharing options...
Havard Posted September 19, 2013 Share Posted September 19, 2013 Go 85mph Hth Best advice yet. I love my RS-R. This thread is sacrilege...!! Quote Link to comment Share on other sites More sharing options...
j_jza80 Posted September 19, 2013 Share Posted September 19, 2013 Get rid of the Mrs? Quote Link to comment Share on other sites More sharing options...
Lbm Posted September 19, 2013 Share Posted September 19, 2013 get rid of the mrs? Quote Link to comment Share on other sites More sharing options...
clay Posted September 19, 2013 Share Posted September 19, 2013 (edited) I think you have it round the wrong way mate. Take your baby out in it as much as possible. So she gets youst to the noise. Edited September 19, 2013 by clay (see edit history) Quote Link to comment Share on other sites More sharing options...
Abz Posted January 6, 2014 Author Share Posted January 6, 2014 Best advice yet. I love my RS-R. This thread is sacrilege...!! I love the sound too!! It is okay, the sound is staying as it is. Get rid of the Mrs? I'll let you tell her... To be honest she hasn't moaned apart from one day when she got a headache, without a doubt from the drone, because of traffic we were hovering around the 60-70mph mark. I think you have it round the wrong way mate. Take your baby out in it as much as possible. So she gets youst to the noise. Haha think she is used to the noise, slept all the way home in the 2 hour journey back into London last week. UPDATE! Car is going into SRD to have the sound deadening done, also Lee is going to measure the exhaust to see if we can put a system in some then I can have the car quiet on start up & on motorway journeys. Quote Link to comment Share on other sites More sharing options...
TheTurtleshead Posted January 6, 2014 Share Posted January 6, 2014 I love the sound too!! It is okay, the sound is staying as it is. I'll let you tell her... To be honest she hasn't moaned apart from one day when she got a headache, without a doubt from the drone, because of traffic we were hovering around the 60-70mph mark. Haha think she is used to the noise, slept all the way home in the 2 hour journey back into London last week. UPDATE! Car is going into SRD to have the sound deadening done, also Lee is going to measure the exhaust to see if we can put a system in some then I can have the car quiet on start up & on motorway journeys. Inline butterfly with a switch on the dash or vacuum operated will sort that easy. Quote Link to comment Share on other sites More sharing options...
Pulley Posted January 6, 2014 Share Posted January 6, 2014 I've got one going spare, electric version 3" bore I'll dig it out Quote Link to comment Share on other sites More sharing options...
Abz Posted January 6, 2014 Author Share Posted January 6, 2014 Inline butterfly with a switch on the dash or vacuum operated will sort that easy. I am hoping we could have something with a switch and some sort of trick butterfly valve. Lee did also mention it can be done via boost with a solenoid, though I do like the sound once the car is nice and warm around town. Quote Link to comment Share on other sites More sharing options...
Pulley Posted January 6, 2014 Share Posted January 6, 2014 I am hoping we could have something with a switch and some sort of trick butterfly valve. Lee did also mention it can be done via boost with a solenoid, though I do like the sound once the car is nice and warm around town. You could go for this, or the ones I prefer are actuated with vacume or boost pressure Quote Link to comment Share on other sites More sharing options...
Abz Posted January 6, 2014 Author Share Posted January 6, 2014 [ATTACH=CONFIG]179047[/ATTACH] You could go for this, or the ones I prefer are actuated with vacume or boost pressure[ATTACH=CONFIG]179048[/ATTACH] Thanks for having a look & taking a picture Mark! I'd also prefer one on vacuum or boost pressure. Which car is that modification done to? Quote Link to comment Share on other sites More sharing options...
Pulley Posted January 7, 2014 Share Posted January 7, 2014 Thanks for having a look & taking a picture Mark! I'd also prefer one on vacuum or boost pressure. Which car is that modification done to? I did have the electric valve on my supra The vac actuated setup I fabricated on the lamborghini murcielago on both exit pipes, open and you'd get full gas flow thru open centres , closed and exhaust gasses had to pass thru outer chamber You could always have a set length of pipe spliced into your exhaust at some convenient place along its length to adjust the systems wavelength , acoustic length, and de-tune it from the 70mph load-rpm point Quote Link to comment Share on other sites More sharing options...
Noz Posted January 7, 2014 Share Posted January 7, 2014 I've an apexi exhaust control valve on mine. When closed at 70 I can barely hear the exhaust. With it open it's nuts. Used to have to use ear plugs at 80mph (on long journeys). Quote Link to comment Share on other sites More sharing options...
Josh Posted January 7, 2014 Share Posted January 7, 2014 My Nur Spec R doesn't drone at any speed. It's loudest at about 3400rpm but it's never annoyed me on the motorway. The fact it looks like it's been hit with a hammer just behind the backbox may have something to do with it Quote Link to comment Share on other sites More sharing options...
mattdavies Posted January 7, 2014 Share Posted January 7, 2014 My NurSpec with 3" First, 2.5" second, doesnt drone till 90 MPH, but with the bung it it is perfect for long drives. In fact I like it so much I think i am going to run it most the time with the bung Quote Link to comment Share on other sites More sharing options...
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