Start-up noise
Discussion
F1 NDW said:
When you start from cold the ECU knows its cold and therefore gives extra fuel to make sure it starts.
That is why you get that gunshot roar that makes everyone jump starting from cold. Once the engine is warm it is a much more subdued affair.
My Vanquish absolutely howls from cold!
Thats interesting, I don't know that, but it makes sence. That is why you get that gunshot roar that makes everyone jump starting from cold. Once the engine is warm it is a much more subdued affair.
My Vanquish absolutely howls from cold!
It helps even more if you remove 50kg of rusting s**t and replace with straight pipes and a balance pipe. It is also a tenth of the cost of a new box and sounds awesome!
Replacing this which is steel, designed to fail and costs over 5 grand. Everyone with an original Vanquish will have to deal with it one day!
Replacing this which is steel, designed to fail and costs over 5 grand. Everyone with an original Vanquish will have to deal with it one day!
Edited by F1 NDW on Monday 28th August 14:18
F1 NDW said:
It helps even more if you remove 50kg of rusting s**t and replace with straight pipes and a balance pipe. It is also a tenth of the cost of a new box and sounds awesome!
Replacing this which is steel, designed to fail and costs over 5 grand. Everyone with an original Vanquish will have to deal with it one day!
That back box surely can't weigh 50kg. Out of interest, what does the balance pipe do? Is it a bit like an x-pipe, changing the character of the sound but no real effect on performance?Replacing this which is steel, designed to fail and costs over 5 grand. Everyone with an original Vanquish will have to deal with it one day!
Pete the balance pipe prevents it sounding like two six cylinder engines. I believe it also makes the exhaust sound deeper. All a bit of a black art to me. I just know I love it. It sounds just like original with the valves open but with even more presence. It is not intended to enhance engine power just the sound.
Below is a picture of the old box opened up. It's just full of pipes hence the weight. In fact if you follow the gas flow you will see that the box is just a very fancy balance pipe when the by-pass valves are open.
Below is a picture of the old box opened up. It's just full of pipes hence the weight. In fact if you follow the gas flow you will see that the box is just a very fancy balance pipe when the by-pass valves are open.
Edited by F1 NDW on Monday 28th August 18:35
F1 NDW said:
It helps even more if you remove 50kg of rusting s**t and replace with straight pipes and a balance pipe. It is also a tenth of the cost of a new box and sounds awesome!
Is the balance pipe in your photos? I don't know what one looks like, but what I can see just looks like straight through exhaust pipes.JohnG1 said:
Is the balance pipe in your photos? I don't know what one looks like, but what I can see just looks like straight through exhaust pipes.
I think it's the pipe that goes across the back of the car, between the two pipes - along where that line of bolts would have been?Fascinating inside that backbox. What a codge
JohnG1 said:
Is the balance pipe in your photos? I don't know what one looks like, but what I can see just looks like straight through exhaust pipes.
John look closely just before the tips and you will see it. The balance pipe also helps hold everything tohether and makes it easy to secure to the original mounting points.Ha ha, thanks Pete,I'll see if I can link it to the AMOC site where its posted.
If it works it's best to listen with headphones or ear pods to get the full range.
https://forum.amoc.org/post/vanquish-exhaust-86310...
If it works it's best to listen with headphones or ear pods to get the full range.
https://forum.amoc.org/post/vanquish-exhaust-86310...
Edited by F1 NDW on Monday 28th August 22:21
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