tDR Posted April 16, 2009 Author Share Posted April 16, 2009 Why not have an extra silencer box or the exhaust current box modified for a larger size. I think Paul Whiffin did something similar recently. Yeah I think a silencer added on the lower decat pipe in the position of where that cat normally is would work as there should be suitable space under the car there? I think cost wise this option would be cheaper than the switch to Nur Spec RX and hopefully won't be any more restrictive. Quote Link to comment Share on other sites More sharing options...
SteveR Posted April 16, 2009 Share Posted April 16, 2009 Kwik-Fit special - just missing the blue paint They are exceptionally well built pieces of kit and well fitting compared to the majority of other (more chavvy) exhausts out there! Quote Link to comment Share on other sites More sharing options...
tDR Posted April 16, 2009 Author Share Posted April 16, 2009 They are exceptionally well built pieces of kit and well fitting compared to the majority of other (more chavvy) exhausts out there! Well built maybe, but the looks, they make the baby jesus cry!!! http://www.bbc.co.uk/parenting/images/300/baby_crying_closeup.jpg | http://www.horsepowerfreaks.com/viewimageresize.asp?w=150&p=Tanabe&f=Exhaust_Systems_Medalion_Touring Quote Link to comment Share on other sites More sharing options...
SteveR Posted April 16, 2009 Share Posted April 16, 2009 lol I think they look pretty good too, but then I'm not into blingy crap. Must be a Scottish/bad taste thing. Quote Link to comment Share on other sites More sharing options...
tDR Posted April 16, 2009 Author Share Posted April 16, 2009 lol I think they look pretty good too, but then I'm not into blingy crap. Must be a Scottish/bad taste thing. Oh you would go and play the race card, wouldn't you..... southern shandy drinking ponce! Quote Link to comment Share on other sites More sharing options...
SteveR Posted April 16, 2009 Share Posted April 16, 2009 Oh you would go and play the race card, wouldn't you..... southern shandy drinking ponce! I'll race ya -oh not that sort of race. Anyway, I like cider. Nothing not-manly about that, and I know you can't argue. /off-topic. Quote Link to comment Share on other sites More sharing options...
tDR Posted April 16, 2009 Author Share Posted April 16, 2009 pmsl. Cider is extremely manly! We're weaned on it up here Quote Link to comment Share on other sites More sharing options...
DannoSupra Posted April 16, 2009 Share Posted April 16, 2009 Has anyone concidered using a Semi Active Muffler? One minute quiet, then by the flick of a switch, NOISE!!! Quote Link to comment Share on other sites More sharing options...
Franko Posted April 16, 2009 Share Posted April 16, 2009 pmsl. Cider is extremely manly! We're weaned on it up here i cried at 14 when they put the price of Merrydown up from £1.99 to £2.10 i remember the day cos i didt have enough for 2 bottles Quote Link to comment Share on other sites More sharing options...
tDR Posted April 16, 2009 Author Share Posted April 16, 2009 Has anyone concidered using a Semi Active Muffler? One minute quiet, then by the flick of a switch, NOISE!!! Anything off the shelf available for the Supra? Franko - was White Lightening at my school!! Quote Link to comment Share on other sites More sharing options...
Franko Posted April 16, 2009 Share Posted April 16, 2009 We never got onto that at all, most of it was Merrydown then we got weekend jobs and did the whole 2 bottles of Buckfast from then in. Oh and the vodka Quote Link to comment Share on other sites More sharing options...
Scott Posted April 16, 2009 Share Posted April 16, 2009 Pfft us poor boys could only afford Lazer and Ice Dragon Was stronger than merrydown etc but tasted like vinegar. Quote Link to comment Share on other sites More sharing options...
SteveR Posted April 16, 2009 Share Posted April 16, 2009 Anything off the shelf available for the Supra? You're testing my memory now but I'm sure Nic posted up - probably 3 years or more ago - about some (TRD? HKS?) peice of kit that did just this. I thought it was Supra specific but that bit might be bobbins. Quote Link to comment Share on other sites More sharing options...
Nic Posted April 16, 2009 Share Posted April 16, 2009 Anything off the shelf available for the Supra? Apexi Exhaust Control Valve http://www.apexi-usa.com/product_exhaust_detail.asp?id=251&pageNum=1 http://www.apexi.co.jp/products/exhaust/ecv/ecv_photo.jpg http://www.venturiracing.de/shop/media/images/apexexhaust-rohr-large.jpg Apexi Active Tail Silencer http://www.apexi-usa.com/product_exhaust_detail.asp?id=217&pageNum=1 http://www.apexi-usa.com/graphics/products/2171.jpg Quote Link to comment Share on other sites More sharing options...
Lbm Posted April 16, 2009 Share Posted April 16, 2009 (edited) I should mention that the RX is slightly restrictive as I will only boost to 0.9bar but when the previous owner had a different exhaust it boost to 1.2bar and needed a restrictor ring. I'm not sure if Lbm or anyone else has found the same? I must check this, although I have an EBC anyway. TDR, I doubt you'll p!ss off your neighbours/office colleagues with idle or low speed noise from a double decat Supe with an RX. I have my lock up in a residential area, and I'm very mindful about noise when coming home late at night. But the RX poses no problems. IMHO the Supe/RX combo just purrs nicely at low speeds Edited April 16, 2009 by Lbm (see edit history) Quote Link to comment Share on other sites More sharing options...
tDR Posted April 17, 2009 Author Share Posted April 17, 2009 The Apexi ECV looks like it'd have to be the weld in version to get a decent diameter. If I wanted to go full throttle with low noise (track days etc.) I think having the flap part closed would be really restrictive and cause high EGTs. That tail pipe thing looks worse than a bung so wouldn't go that way. So I guess I wanna know how much I can get an RX for delivered? Blitz UK are looking for £591 Quote Link to comment Share on other sites More sharing options...
dandan Posted April 17, 2009 Share Posted April 17, 2009 I saw you mention it above but did you get any further with the idea of extra silencing in your Nur Spec? Quote Link to comment Share on other sites More sharing options...
DannoSupra Posted April 17, 2009 Share Posted April 17, 2009 I'm going to have a chat with my mate who does custom systems, im sure he's done one before... I was thinking of a middle box like the pic ive done below (excuse my artistic skills on Paint ) The green arrows indicating the quieter flow through the muffler, and the red arrows bypassing the muffler. I doubt it it'll work on a High Power Supra due to lack of space and larger exhaust diameter Its a shame there's no room to make an exhaust like there is on a new Jag XK - can't find any pics of it all in piece's.. But it works the same way as above but as part of the Backbox and it's Intergal --- Ahhh what the heck, still to noise i think Quote Link to comment Share on other sites More sharing options...
SteveR Posted April 17, 2009 Share Posted April 17, 2009 Nice picture. You'd probably want the more direct-flow to be for the high power/noise route as it'll have minimum resistance (and usually therefore, maximum power). The stock exhaust splits into two when it gets mid-way to the rear of the car, you could look into having one route being the loud path and the other contain the muffler. Noise limits tend to be on tracks & other motorsport locations however, where you will want max power - and thus a muffler that will support that. Quote Link to comment Share on other sites More sharing options...
TTRickeh Posted April 17, 2009 Share Posted April 17, 2009 Its a shame there's no room to make an exhaust like there is on a new Jag XK - can't find any pics of it all in piece's.. But it works the same way as above but as part of the Backbox and it's Intergal I think Golf R32's and Aston V8's have something similar too. Quote Link to comment Share on other sites More sharing options...
DannoSupra Posted April 17, 2009 Share Posted April 17, 2009 Nice picture. You'd probably want the more direct-flow to be for the high power/noise route as it'll have minimum resistance (and usually therefore, maximum power). The stock exhaust splits into two when it gets mid-way to the rear of the car, you could look into having one route being the loud path and the other contain the muffler. Noise limits tend to be on tracks & other motorsport locations however, where you will want max power - and thus a muffler that will support that. Ohh aye i did think about the split stock exhaust route, as i say, i'll have a word with my guy soon and see what he thinks. My pic was a quick refference, i wasn't going to have squared angle's I'm still a bit with the exhaust diamater's for high powered car's, and as you say, for optimum performance, ideally, needs to be less restrictive and as straight as possbile!! It might be a thought for BPU or Stock power that needs a bit of noise Quote Link to comment Share on other sites More sharing options...
johnny g Posted April 17, 2009 Share Posted April 17, 2009 Speak to Jevansio about what he had done to his ... something similar IIRC. Quote Link to comment Share on other sites More sharing options...
SteveR Posted April 20, 2009 Share Posted April 20, 2009 I'm still a bit with the exhaust diamater's for high powered car's, and as you say, for optimum performance, ideally, needs to be less restrictive and as straight as possbile!! I'm told that, at least in theory, a reasonably free-flowing 3" system is more than enough until you get towards 800~1000bhp. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.