Aston Martin Vantage -06 Valve question

[Emile83]

Hi guys,
I have ordered the new Vantage and I'l be getting mine in late March. I read this in article just a minute ago:


"And then there’s the noise. Oh my God. What a soundtrack. From inside, all is quiet and serene. At normal speed, when the European Union testing people are listening, all is quiet and serene.
But put your foot down and a little VALVE in the exhaust system changes everything. Under full-bore acceleration, this car doesn’t rumble or howl. It sounds like all the most exciting bits of the Bible. It sounds like Revelation. And it’s just so loud. When my wife went for a spin on a balmy summer’s evening, I heard her change from fourth to fifth
a full two miles away. A Porsche may well have the power and agility to get past, but stuck in the sonic boom from those exhausts, I suspect the German car would probably disintegrate before it ever got the chance. The way it sounds is a good enough reason to buy the Vantage"

This is what Clarksson from TOP GEAR said, so a pretty good veridct sound wise that is.

So every page on the internet keeps talking about these "VALVES" opening and giving a kick as sound, and as soon as they are closed, the car goes quiet, (under 4000 rpm according to most pages I've found).

So the question is:
Is there any way I can have these VALVES open at all time? I want that crazy ass sound always! Not only over 4000 rpm, so is this possible without hurting the cars performance?

Thank you in advance

EMILE

[AllGoNoShow]

Its brand new man, I wouldn't be fucking with any valves on an 06 Vantage until it is atelast 25 years old. Most likely it is just valvetrain of some sort that when you go full throttle it opens a second set of valves up for make performance.

Let us know if you find anything more!

[Emile83]

Hi again,
Also found this:

It sounds very different, but that's no bad thing. At cruising speeds, it's quiet enough to be civilized, but open the throttle at 4,000 rpm and the variable valve timing, coupled with the opening of an exhaust valve, turns up the volume by several hundred percent. On the open road, you will hear a V8 Vantage coming long before you see it.

The engine barks into life, a bypass valve in the exhaust system opening to let the sound thrill out. That valve opens again when the Aston is accelerating past 4,000rpm.

Maybe it helps anyone figuering this one out....

EMILE

[iceburns288]

Oh sure you can do it. Just disconnect the vacuum to the bypass valves. Works *cough* well on Ferraris

EDIT it's easier to just disconnect the electrical connector at the vacuum switch, at least on 360s, because there's stuff in the way of one of them. The valves on your Aston should work just the same

[b_t]

Originally posted by iceburns288
Oh sure you can do it. Just disconnect the vacuum to the bypass valves. Works *cough* well on Ferraris

and C6 Corvettes

[Emile83]

Is this a hard procedure? Do i need a special garage och can any custom car builder do it? Is it hard to change back to original?

[iceburns288]

No it's not difficult at all. All you need is an Allen wrench

EDIT no it takes just a few minutes to do it either way, so putting it back should be just as easy!

[iceburns288]

Here are some instructions I found on Ferrarichat:

1. Open the engine lid. On the spider, remove the two access panels on the sides at the rear. You'll need a metric #4 allen wrench (or a 5/32" allen wrench).

2. On the coupe, look directly to the left and right of the muffler. On the spider, look under each panel you removed. There is an electrical connector attached to a gray or white plastic block; the block is a vacuum switch. If you look closely, there is a black hose that goes from the vacuum switch to a vacuum can which operates the exhaust flap.

3. Disconnect the electrical connector by pressing on the underside of it while pulling it out. You might want to twist-tie it to something to keep it from flopping around. Btw, you can disconnect and reconnect this with the motor running to hear the sound difference.

The one on the right side (passenger side) is easier to reach because the left side has an electric air pump mounted in there. (At least on my spider there is.) I didn't disconnect the vacuum line itself because the left side was too difficult to get to. All you need to do is disconnect the electrical connector at the vacuum switch.

Obviously, it applies to 360s, but the technology is the same I'm sure.

Here's a pic of one in a Challenge Stradale:

[Emile83]

Thanks guys!
Looks pretty easy, but I'l let some garage do it for me as I'm sure I need help finding it on the Aston Martin Vantage.

Ok, so the I get the sound, but how does it work with the car?
I mean, will there be any bad side effects or is it totally unsafe?

How come people get new exhausts instead of doing this, when they only want more sound, not looking for the extra performance? I mean this must be so much cheaper and easy...

Is it to recommend doing on a brand new AM Vantage 06, or is there a chance I fuck teh whole car up.....?

Thanks

EMILE

[retro-steve]

the police and people around you will get pissed off at the noise, this is why most people avoid doing it. it is a minority of people that like a loud, obnoxious exhaust...i am part of this minority.

[Emile83]

So it's really going to be that loud!
Now I have 996 turbo x50 with Europipe exhaust which makes it 3 times as loud as original... so then it's going to be louder that that I guess...

Ok, I will try it first at the garage, and then if it's to loud I'l have to change it back, the problem with owning an Aston Martin is that there's no tuning companies that makes any exhaust. I've been looking everywhere and nobody knows anyone who makes loud exhaust to teh Aston Martin....

[EK 2.0]

so...they have what should be similar to the Mitsu Cyclone Intake manifold as was founf on JDM 4G63's??

But the "butterfly" is found in the exhast??

[iceburns288]

I just did it to my dad's car when he was out . Obviously it doesn't take very long as I had time to wait for him to leave, take my time, mess with it for a while, put it all back together, and come back up here and get all my pics and vids off my cell phone. I'll put em up in a sec...

EDIT doing the whole thing took 14 minutes, not bad, and it sounds a lot sharper now . Not a real difference at idle.

[Emile83]

Kidding me!
Man! Talk about a great message board! You kick ass man! Thanks alot! Looking forward hearing the difference....

So only thing one would want to know now is the disadvantages with doing this, but maybe I can find it on another forum or searching for it... it didn't say anything on the ferrari forum?

[AllGoNoShow]

The only difference would be less back pressure but since the car has the option and the capability of doing it anyways I doubt there would be any effects to your engine if you left it open all the time, except for noise but thats not an problem if your driving by me

[Emile83]

But if it will affect the back pressure won't the performance go down, or is that only so little so that it won't mather, I mean I could easily loose some performance for some sound...

But basically the car shoud be okey then...

[AllGoNoShow]

Yah car should be fine. Backpressure MIGHT make u loose some low end torque but your Aston should have enough in the first place for you

[Emile83]

Perfect...

[iceburns288]

No, the car has been tuned to run effeciently at full throttle, not at below half throttle. I'm sure Aston's not that stupid.

Ok, here goes.
The tools required:

That's a flashlight, the hex wrench set and a dirty Mercedes t-shirt. The paper is the instructions and the screws I took off the car.

This is what the vacuum switch looked like.

The big cord in the front is the taillight stuff, but the black cord on the left is the electricals, the gray thing is the switch itself, and the black tube out the back is vacuum.

Same thing, but after I unplugged it:


During the process:


I took vids but they suck .

[90_Shelby]

Originally posted by b_t


and C6 Corvettes

Could you clarify what you are talking about? What do you do on C6's to do what?