JoshThePonce Posted September 10, 2012 Author Posted September 10, 2012 It's the loudest road-going vehicle i've ever heard let alone the loudest 350z lol With the valve open there is definitely a clear reduction in power, may be due to where i have it installed in the system though. I didn't buy it for any power increase however, just the noise Quote
docwra Posted September 10, 2012 Posted September 10, 2012 Thats very interesting mate, like I say I thought I could feel a drop off when I didnt have a backbox as well but looked into it and it didnt seem to be an issue, maybe Z33's are affected mroe than other cars What percentage open/closed are you seeing at the moment? Quote
spursmaddave Posted September 10, 2012 Posted September 10, 2012 very nice Howvever its safe to say i still have the loudest exhaust on a 350z Until yesterday when i finally took it off for a milltek. It will take a while for my hearing to recover Pardon Quote
spursmaddave Posted September 10, 2012 Posted September 10, 2012 It's the loudest road-going vehicle i've ever heard let alone the loudest 350z lol With the valve open there is definitely a clear reduction in power, may be due to where i have it installed in the system though. I didn't buy it for any power increase however, just the noise Josh I think you should visit me, I live just over the QE2 bridge and the tunnel goes back the other way Quote
JoshThePonce Posted September 10, 2012 Author Posted September 10, 2012 Thats very interesting mate, like I say I thought I could feel a drop off when I didnt have a backbox as well but looked into it and it didnt seem to be an issue, maybe Z33's are affected mroe than other cars What percentage open/closed are you seeing at the moment? Depends how long i can bare it for No no no Dave, you come to me Quote
rtbiscuit Posted September 10, 2012 Posted September 10, 2012 Thats very interesting mate, like I say I thought I could feel a drop off when I didnt have a backbox as well but looked into it and it didnt seem to be an issue, maybe Z33's are affected mroe than other cars What percentage open/closed are you seeing at the moment? Depends how long i can bare it for No no no Dave, you come to me you don;t understand you go and see dave, not to see dave, but for the fun of the tunnel on the way home. its the best exhaust note tester in the country Quote
JoshThePonce Posted September 11, 2012 Author Posted September 11, 2012 I don't think we'd make it out the other side alive Quote
spursmaddave Posted September 11, 2012 Posted September 11, 2012 My Buddy Club sounded awesome though the tunnel I very nearly bought the 2nd hand one on eBay last week just to put on for the summer next year Come on down, we may both end up deaf but who cares :drive: Quote
Jay DW Posted September 11, 2012 Posted September 11, 2012 So now you know why we call it the retard valve Josh - it has that effect on everyone who hears them! Quote
andlid Posted September 11, 2012 Posted September 11, 2012 been thinking about a cutout valve myself (was discussing this with Husky at the time), I too have the problem of having to have two. Was thinking on maybe redo the exhaust a bit and have it going from 2-1-2 and stick the cutout before the mid silencer. Has anyone thought about the effects on the engine this would have? Good to have some sort of compression from the exhaust I'd say? Who's going to be the first FI person to go with something like this? I wouldn't mind some noise on track! I'd only do this now if it gained me some power and engine response, will ask around and see what's what. What's the electrics like? Was thinking I could make this open automatically @ certain RPM or boost, can it open quicker then 5 seconds though? Quote
rtbiscuit Posted September 12, 2012 Posted September 12, 2012 I know another company that has a control box that can do it on rev boundaries or on manual control. as for 2 into 1 and back to 2 my setup has an X pipe so it kind of does that, which enables exhaust gas scavenging. which helps to keep both sides of the engine balanced. i think you plan for a section where ti comes back together might be a bit restrictive. as it won;t work like an x pipe, but colide in the middle. having 2 does not double the sound, same as having 2 exhaust back boxes doesn;t, the engine makes the same level of noise, you'll just have to outlets for the gas. Quote
andlid Posted September 12, 2012 Posted September 12, 2012 I know another company that has a control box that can do it on rev boundaries or on manual control. as for 2 into 1 and back to 2 my setup has an X pipe so it kind of does that, which enables exhaust gas scavenging. which helps to keep both sides of the engine balanced. i think you plan for a section where ti comes back together might be a bit restrictive. as it won;t work like an x pipe, but colide in the middle. having 2 does not double the sound, same as having 2 exhaust back boxes doesn;t, the engine makes the same level of noise, you'll just have to outlets for the gas. Yeah not sure what's best really, probably using two get rid of the mid box use two pipes. I could probably use the Haltech to control the opening of the valves but if it takes 5 seconds I've already probably starting letting off the accelerator and dropped under the RPM limit Quote
rtbiscuit Posted September 12, 2012 Posted September 12, 2012 might as well keep it manual control, set it open for when you want a hoon, turn it closed for sedate or track work where decibel limits exist. Quote
andlid Posted September 12, 2012 Posted September 12, 2012 might as well keep it manual control, set it open for when you want a hoon, turn it closed for sedate or track work where decibel limits exist. ...or when they measure it at the pits Quote
rtbiscuit Posted September 12, 2012 Posted September 12, 2012 might as well keep it manual control, set it open for when you want a hoon, turn it closed for sedate or track work where decibel limits exist. ...or when they measure it at the pits good for MOT's, they'll be measuring the gases at the back, when in truth they could be shooting out the side Quote
andlid Posted September 12, 2012 Posted September 12, 2012 might as well keep it manual control, set it open for when you want a hoon, turn it closed for sedate or track work where decibel limits exist. ...or when they measure it at the pits good for MOT's, they'll be measuring the gases at the back, when in truth they could be shooting out the side haha, class Quote
4RE Leather Posted June 20, 2013 Posted June 20, 2013 Brooklands350 fitted one to BBK's car a few months back.. It sounds quite good. But as you say some of us would need a double as I have a true duel exhaust. Whatever the fek that means! Quote
longsh07 Posted July 2, 2013 Posted July 2, 2013 New little addition Ah so thats what the little side exit was for! Was trying to figure out why you had a side exit and a normal back box at JapShow! Quote
JoshThePonce Posted July 2, 2013 Author Posted July 2, 2013 Respec' Josh Need sound video clip though Check the first page It sounds a little more refined now though with the side exit so i'll try and get a new vid up at some point, even louder now too as it's more directional Quote
The Bounty Bar Kid Posted January 12, 2014 Posted January 12, 2014 new vid please You can still see one on my build thread. Quote
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