Powercraft exhaust for V12V
Discussion
I've been in touch with Powercraft in Japan about getting hold of one of their systems for the V12V.
What is particularly good about it, I think, is that it offers two sound levels, one quieter one (similar to standard apparently) and 'exciting mode' accessed via a button on a remote. By the look of it 'exciting mode'.
http://www.youtube.com/watch?v=PeOdUudfluc&fea...
The asking price is 650,000 yen, which works out at £5315. But I reckon I could get a better deal for a group buy if anyone was interested. By group buy, probably just a few others would probably be enough and I'd be hopeful of getting the price under £5k including shipping to the UK.
some more details here:
http://www.power-craft.jp/base1111118.html
let me know if you're interested.
What is particularly good about it, I think, is that it offers two sound levels, one quieter one (similar to standard apparently) and 'exciting mode' accessed via a button on a remote. By the look of it 'exciting mode'.
http://www.youtube.com/watch?v=PeOdUudfluc&fea...
The asking price is 650,000 yen, which works out at £5315. But I reckon I could get a better deal for a group buy if anyone was interested. By group buy, probably just a few others would probably be enough and I'd be hopeful of getting the price under £5k including shipping to the UK.
some more details here:
http://www.power-craft.jp/base1111118.html
let me know if you're interested.
Why not just go for the £1500 quicksilver system and have the bypass valves from your current exhaust fitted in line. Not a hard job to do, and you then get the same twin sound capabilities. You can also have a switch fitted in the cockpit so you can open and close the valves whenever you like.
Crickey, for £5k you could get a complete manifold upgrade and race cat system which would add another few bhp and make the car a total monster!
Crickey, for £5k you could get a complete manifold upgrade and race cat system which would add another few bhp and make the car a total monster!
The Pits said:
Thought bamford rose used quicksilver? Their titanium system is over £12k by the way!
It was a quicksilver system on my elise that made me realise the value of being able to turn the noise down when necessary. I paid someone to have it removed.
They do but are made for BR, you could have the manifold/cat option retaining the STD rear silencer withn a bypass switch but still gaining from a nice power increase and the option to tone it down a bit. It was a quicksilver system on my elise that made me realise the value of being able to turn the noise down when necessary. I paid someone to have it removed.
Do you need a titanium exhaust system? From my past experience yeah they are great but for road use I had endless amounts of problems with the systems cracking around the welds
I have looked on powercrafts website and there is no mention of material used or power gains! If I were to be shelling out £5-6k on an exhaust I would want to see proof of gains.
From an engineering perspective, I'm concerned about the exhaust flow efficiency when the valves are closed and the silencer becomes effective.
The use of "T" junctions (before and after the valves) is pretty much a cardinal sin, and will most certainly impede exhaust gas flow.
I'd also like to know what the internal flow paths are inside the muffler. It looks like it could incorporate U bends or parallel transfer tubes, both of which are sub-prime.
The use of "T" junctions (before and after the valves) is pretty much a cardinal sin, and will most certainly impede exhaust gas flow.
I'd also like to know what the internal flow paths are inside the muffler. It looks like it could incorporate U bends or parallel transfer tubes, both of which are sub-prime.
I should add that I contacted Bamford Rose but am yet to receive any kind of reply.
However I do like the idea of looking at a full system using less restrictive cats and would like some more info about who I should contact for such a thing. A very respected source at the factory said there were considerable gains to be had from removing the cats although more power is not top of my list, I certainly don't wish for much more at full chat. However quality of noise is. If a freer flowing system produced gains at the expense of noise quality I'd be disappointed.
I also heard that the nurburgring 24hr V12Vantage racer used DB9 manifolds for greater torque at the expense of top end power, so that wouldn't be desirable either.
Japanese quality for after market products is absolutely first rate and this powercraft system certainly appears to be more lovingly crafted than most.
However I do like the idea of looking at a full system using less restrictive cats and would like some more info about who I should contact for such a thing. A very respected source at the factory said there were considerable gains to be had from removing the cats although more power is not top of my list, I certainly don't wish for much more at full chat. However quality of noise is. If a freer flowing system produced gains at the expense of noise quality I'd be disappointed.
I also heard that the nurburgring 24hr V12Vantage racer used DB9 manifolds for greater torque at the expense of top end power, so that wouldn't be desirable either.
Japanese quality for after market products is absolutely first rate and this powercraft system certainly appears to be more lovingly crafted than most.
The Pits said:
I should add that I contacted Bamford Rose but am yet to receive any kind of reply.
However I do like the idea of looking at a full system using less restrictive cats and would like some more info about who I should contact for such a thing. A very respected source at the factory said there were considerable gains to be had from removing the cats although more power is not top of my list, I certainly don't wish for much more at full chat. However quality of noise is. If a freer flowing system produced gains at the expense of noise quality I'd be disappointed.
I also heard that the nurburgring 24hr V12Vantage racer used DB9 manifolds for greater torque at the expense of top end power, so that wouldn't be desirable either.
Japanese quality for after market products is absolutely first rate and this powercraft system certainly appears to be more lovingly crafted than most.
Agreed; Japanese quality is excellent and vastly exceeds that of most UK made systems!However I do like the idea of looking at a full system using less restrictive cats and would like some more info about who I should contact for such a thing. A very respected source at the factory said there were considerable gains to be had from removing the cats although more power is not top of my list, I certainly don't wish for much more at full chat. However quality of noise is. If a freer flowing system produced gains at the expense of noise quality I'd be disappointed.
I also heard that the nurburgring 24hr V12Vantage racer used DB9 manifolds for greater torque at the expense of top end power, so that wouldn't be desirable either.
Japanese quality for after market products is absolutely first rate and this powercraft system certainly appears to be more lovingly crafted than most.
I'd be inclined to hold fire on spending for a short while, as there are some very interesting and high quality components about to become available, and exhaust manifolds and systems are on the list
From a gasflow point of view does it matter what the silencer is like on the powercraft system?
I'd most likely be using that at lower speeds (both engine and road), then when the opportunity arises to 'press on', that's likely to be the time I'd be reaching for the remote.
it looks pretty much straight through once the valves are open so no concerns there from a gasflow point of view I imagine?
see no reason why I wouldn't add a manifold or sports cats later on, other than it might be apocalyptically loud!
I'd most likely be using that at lower speeds (both engine and road), then when the opportunity arises to 'press on', that's likely to be the time I'd be reaching for the remote.
it looks pretty much straight through once the valves are open so no concerns there from a gasflow point of view I imagine?
see no reason why I wouldn't add a manifold or sports cats later on, other than it might be apocalyptically loud!
The Pits said:
From a gasflow point of view does it matter what the silencer is like on the powercraft system?
I'd most likely be using that at lower speeds (both engine and road), then when the opportunity arises to 'press on', that's likely to be the time I'd be reaching for the remote.
it looks pretty much straight through once the valves are open so no concerns there from a gasflow point of view I imagine?
see no reason why I wouldn't add a manifold or sports cats later on, other than it might be apocalyptically loud!
With the greatest respect in the world......are you fI'd most likely be using that at lower speeds (both engine and road), then when the opportunity arises to 'press on', that's likely to be the time I'd be reaching for the remote.
it looks pretty much straight through once the valves are open so no concerns there from a gasflow point of view I imagine?
see no reason why I wouldn't add a manifold or sports cats later on, other than it might be apocalyptically loud!
king mad !!! With duties?...7k for an system that at best will make a nice noise and at worst will reduce power output .......no reviews......no opinions ......just some crap you read on a website.........there again you might get yeti to buy one with you......don't think he's had that option on his DB9V michael gould said:
The Pits said:
From a gasflow point of view does it matter what the silencer is like on the powercraft system?
I'd most likely be using that at lower speeds (both engine and road), then when the opportunity arises to 'press on', that's likely to be the time I'd be reaching for the remote.
it looks pretty much straight through once the valves are open so no concerns there from a gasflow point of view I imagine?
see no reason why I wouldn't add a manifold or sports cats later on, other than it might be apocalyptically loud!
With the greatest respect in the world......are you fI'd most likely be using that at lower speeds (both engine and road), then when the opportunity arises to 'press on', that's likely to be the time I'd be reaching for the remote.
it looks pretty much straight through once the valves are open so no concerns there from a gasflow point of view I imagine?
see no reason why I wouldn't add a manifold or sports cats later on, other than it might be apocalyptically loud!
king mad !!! With duties?...7k for an system that at best will make a nice noise and at worst will reduce power output .......no reviews......no opinions ......just some crap you read on a website.........there again you might get yeti to buy one with you......don't think he's had that option on his DB9V For that sort of money, Bamford Rose could do something far better for your car, with switchable noise modes utilising your current backbox, and something that will actually make a significant difference to performance.
The Pits said:
From a gasflow point of view does it matter what the silencer is like on the powercraft system?
I'd most likely be using that at lower speeds (both engine and road), then when the opportunity arises to 'press on', that's likely to be the time I'd be reaching for the remote.
it looks pretty much straight through once the valves are open so no concerns there from a gasflow point of view I imagine?
see no reason why I wouldn't add a manifold or sports cats later on, other than it might be apocalyptically loud!
Well, from an engineering perspective it is very important. Exhaust back pressure reduces performance and fuel economy.I'd most likely be using that at lower speeds (both engine and road), then when the opportunity arises to 'press on', that's likely to be the time I'd be reaching for the remote.
it looks pretty much straight through once the valves are open so no concerns there from a gasflow point of view I imagine?
see no reason why I wouldn't add a manifold or sports cats later on, other than it might be apocalyptically loud!
Also, some people may consider the use of "T" junctions to be surprising.
I see your point in relation to the performance when the valves are open, but considering the asking price, I would probably expect a better job of it.
yeti said:
michael gould said:
The Pits said:
From a gasflow point of view does it matter what the silencer is like on the powercraft system?
I'd most likely be using that at lower speeds (both engine and road), then when the opportunity arises to 'press on', that's likely to be the time I'd be reaching for the remote.
it looks pretty much straight through once the valves are open so no concerns there from a gasflow point of view I imagine?
see no reason why I wouldn't add a manifold or sports cats later on, other than it might be apocalyptically loud!
With the greatest respect in the world......are you fI'd most likely be using that at lower speeds (both engine and road), then when the opportunity arises to 'press on', that's likely to be the time I'd be reaching for the remote.
it looks pretty much straight through once the valves are open so no concerns there from a gasflow point of view I imagine?
see no reason why I wouldn't add a manifold or sports cats later on, other than it might be apocalyptically loud!
king mad !!! With duties?...7k for an system that at best will make a nice noise and at worst will reduce power output .......no reviews......no opinions ......just some crap you read on a website.........there again you might get yeti to buy one with you......don't think he's had that option on his DB9V For that sort of money, Bamford Rose could do something far better for your car, with switchable noise modes utilising your current backbox, and something that will actually make a significant difference to performance.
JohnG1 said:
Really? If not "who" then how about "what" and "when"?
I'm subject to an NDA so can't disclose any info at the moment. I can tell you that the products are currently under development, and that I expect the quality to be better than anything else currently available from UK manufacturers. Interesting times! Gassing Station | Aston Martin | Top of Page | What's New | My Stuff