Which road Aston to recreate Vantage GTE engine rumble?

[oxf88]

Below is a video of the 2015 Vantage GTE v8 engine sound (URL will take you straight to the engine sound)

https://www.youtube.com/watch?v=iqevOyb49s8&li...

I absolutely love that deep rumble.

-Is it possible/how do I make a road-going Aston sound like that?
-Which non-limited Vantage model would be best to use?
-Given the low speed I assume the noise is the engine, not the Akrapovic exhaust?

A bit of background regarding the GT2/GTE engine:

Wikipedia said:

The Aston Martin Vantage GT2's engine is a modified version of the standard 4.3-litre AJ37 V8 from the road car. The larger 4.5-litre engine retains the road car’s cylinder block, heads and crankshaft, but uses competition components, including cylinder heads, con-rods, valves, camshafts and a racing exhaust system. The developed engine features a dry sump lubrication system allowing the engine to be positioned low in the chassis, for an optimised centre of gravity.

Edited by oxf88 on Thursday 8th August 19:24

Edited by oxf88 on Thursday 8th August 19:25

[Dewi 2]

When a 4.3 or 4.7 Vantage is driven though a tunnel or long underpass, there is an unwritten rule that you must dip the clutch, then give a few throttle blips to just below 7,000 rpm. Any nearby petrolheads will just love the deep V8 roar. It is so different from the traditional 1960s/70s American V8s. That was a great sound, but gave an impression of quite a low revving engine.

The Aston Martin V12 engines make a wonderful sound, but have a higher pitch than the V8.

If you are not satisfied by the sound of a Vantage with fuse 22 detached, then decatting and a different back box should be to your liking. You may then find on a journey, that there is too much cabin noise. That is where the flexibility of an exhaust valve switch is handy, but it won't help if the exhaust is already far too loud. A titanuim exhaust system is another option, but that might cost more than you want to spend.

Remember of course that the GTE cars have a side exhaust outlet and exceed the legal noise levels for road cars.

[JohnG1]

The AM roadgoing 4.3 and 4.7 and racecar 4.5 have really got very little in common with the Jaguar V8 - different cylinder heads, camshafts, valves, sump and so on...

I'd look to the exhaust system - side exit, no silencers rather than anything else. That deep sound is lovely, but in the video they are pottering along a public highway. On WOT it's louder than war and would make your ears bleed.

Worth asking Mike at Bamford Rose - he may have been involved with 4.5 project.

[oxf88]

Dewi 2 said:

When a 4.3 or 4.7 Vantage is driven though a tunnel or long underpass, there is an unwritten rule that you must dip the clutch, then give a few throttle blips to just below 7,000 rpm. Any nearby petrolheads will just love the deep V8 roar. It is so different from the traditional 1960s/70s American V8s. That was a great sound, but gave an impression of quite a low revving engine.

The Aston Martin V12 engines make a wonderful sound, but have a higher pitch than the V8.

If you are not satisfied by the sound of a Vantage with fuse 22 detached, then decatting and a different back box should be to your liking. You may then find on a journey, that there is too much cabin noise. That is where the flexibility of an exhaust valve switch is handy, but it won't help if the exhaust is already far too loud. A titanuim exhaust system is another option, but that might cost more than you want to spend.

Remember of course that the GTE cars have a side exhaust outlet and exceed the legal noise levels for road cars.

Thanks for the reply. Are you saying the GTE sounds like any other Vantage v8 at low revs? Not disagreeing, merely clarifying.

I know about fuse 22 and quicksilver exhausts, but that seems to be more about high revs and at high-revs the GTE sounds like this:

https://www.youtube.com/watch?v=MuOYuuPK01I&t=...

Edited by oxf88 on Thursday 8th August 20:28

[Dewi 2]

oxf88 said:

Thanks for the reply. Are you saying the GTE sounds like any other Vantage v8 at low revs? Not disagreeing, merely clarifying.

I know about fuse 22 and quicksilver exhausts, but that seems to be more about high revs and at high-revs the GTE sounds like this:

https://www.youtube.com/watch?v=MuOYuuPK01I&t=...

No, the GTE does not sound like a road going Vantage at any revs, but the standard car does make a very loud deep noise at high revs with full throttle.
The exhaust valves are open up to about 1,500 rpm, then closed and open again from about 4,000 rpm onwards. Think that might also depend upon the amount of throttle opening.

A GTE car with the short side exhaust (possibly no silencers) might idle at about 2,000 rpm, compared with 800 rpm for the road cars .

Your Monza link is one of the best at capturing the true sound of an Aston Martin Vantage GTE.

I have never come across a road going Vantage with side exhaust.
You might have a spot of bother with the MoT. -


EDIT. I have just found this. Says out of stock, but there is a description and picture for you to see.
https://www.pit-lane.co.uk/shop/parts-accessories/...

I expect Prodrive probably made their own exhaust systems for the GTE cars.

Edited by Dewi 2 on Thursday 8th August 23:02

[AstonV]

How about the full titanium GT8 exhaust?

[bogie]

Im sure you can get a road car to sound similar to the GT car, but it wont be MOT compliant .....

In addition to exhaust changes, dont forget about the effect of airbox induction noise on creating that race car sound. Intake is a relatively inexpensive mod compared to manifolds etc

Ask Bamford Rose or David Appleby Engineering what systems they run on the GT race cars and I dont think you will be far off. The challenge is being able to drive it on the road without a) getting a pull from Police and b) getting a headache on long journeys

[JohnG1]

Dewi 2 said:

oxf88 said:

Thanks for the reply. Are you saying the GTE sounds like any other Vantage v8 at low revs? Not disagreeing, merely clarifying.

I know about fuse 22 and quicksilver exhausts, but that seems to be more about high revs and at high-revs the GTE sounds like this:

https://www.youtube.com/watch?v=MuOYuuPK01I&t=...

No, the GTE does not sound like a road going Vantage at any revs, but the standard car does make a very loud deep noise at high revs with full throttle.
The exhaust valves are open up to about 1,500 rpm, then closed and open again from about 4,000 rpm onwards. Think that might also depend upon the amount of throttle opening.

A GTE car with the short side exhaust (possibly no silencers) might idle at about 2,000 rpm, compared with 800 rpm for the road cars .

Your Monza link is one of the best at capturing the true sound of an Aston Martin Vantage GTE.

I have never come across a road going Vantage with side exhaust.
You might have a spot of bother with the MoT. -


EDIT. I have just found this. Says out of stock, but there is a description and picture for you to see.
https://www.pit-lane.co.uk/shop/parts-accessories/...

I expect Prodrive probably made their own exhaust systems for the GTE cars.

Edited by Dewi 2 on Thursday 8th August 23:02

Side exit exhausts can pass an MOT - G-wagen, SLR, forthcoming TVR. I guess you'd need to find a way to get some high flow catalytic converters in the mix and a silencer.

Oh, guess what, it won't sound like a GTE then...

[Dewi 2]

JohnG1 said:

Side exit exhausts can pass an MOT - G-wagen, SLR, forthcoming TVR. I guess you'd need to find a way to get some high flow catalytic converters in the mix and a silencer.

Oh, guess what, it won't sound like a GTE then...

Some recent examples show that it is still possible then, John.
( Is the forthcoming TVR, still forthcoming? There has been a worryingly long media silence. )

Here is an extract from the sales description of the spare exhaust system (#99 Beechdean GTE).

The system is constructed from titatium and has two straight through silencers, one running down each sill.
There are tapping’s in each silencer for gas sensors but there are no catalytic converters in the system and so is not a road legal modification.

These systems sound absolutely amazing and serve to unleash every possible ounce of power from the amazing V8 engine. This system is ideally kept as a spare for your race car or perhaps as a beautiful piece of engineering artwork on your workshop wall.

You would have to be completely nuts to try and fit this to your road car as you would have to make modifications to the sills, lower inner wings and associated fixings. It is, however, very possible. This is due to the shell on your road car being the exact same base as the race GTE car.

[JohnG1]

Dewi 2 said:

JohnG1 said:

Side exit exhausts can pass an MOT - G-wagen, SLR, forthcoming TVR. I guess you'd need to find a way to get some high flow catalytic converters in the mix and a silencer.

Oh, guess what, it won't sound like a GTE then...

Some recent examples show that it is still possible then, John.
( Is the forthcoming TVR, still forthcoming? There has been a worryingly long media silence. )

Here is an extract from the sales description of the spare exhaust system (#99 Beechdean GTE).

The system is constructed from titatium and has two straight through silencers, one running down each sill.
There are tapping’s in each silencer for gas sensors but there are no catalytic converters in the system and so is not a road legal modification.

These systems sound absolutely amazing and serve to unleash every possible ounce of power from the amazing V8 engine. This system is ideally kept as a spare for your race car or perhaps as a beautiful piece of engineering artwork on your workshop wall.

You would have to be completely nuts to try and fit this to your road car as you would have to make modifications to the sills, lower inner wings and associated fixings. It is, however, very possible. This is due to the shell on your road car being the exact same base as the race GTE car.

I read that too. But the plumbing would be nasty - and I don't see how you could make it happen on a roadgoing MOT compliant V8V. But please, prove me wrong and give me a drive past!

[oxf88]

The GTE sounds MUCH different than the GT3 and GT4 from the same model. I can't work out if it's the engine or the exhaust- I would have thought all the GT cars use the same exhaust, leaving the difference to be down to the engine??

[Dewi 2]

oxf88 said:

The GTE sounds MUCH different than the GT3 and GT4 from the same model. I can't work out if it's the engine or the exhaust- I would have thought all the GT cars use the same exhaust, leaving the difference to be down to the engine??

Remember though, the GT4 has a fairly close to stock V8,. The exhaust system can obviously be different as it is track only, but they don't use side exit exhausts. I sometimes hear a GT4 which was bought new and is only used for hillclimbs. It does not sound very different from a normal road going Vantage. Certainly not especially loud. Perhaps for hillclimbs it has to meet a lower level noise test than for circuit racing.

The GT3 track car uses a V12 engine, so quite a different sound compared to the GTE.

What are your plans?

[LordBretSinclair]

A friend has the GT3 set up (2 separate rear boxes) from DAE - sounds epic - very "raspy" and really different to any other V8 sound.

[oxf88]

Dewi 2 said:

Remember though, the GT4 has a fairly close to stock V8,. The exhaust system can obviously be different as it is track only, but they don't use side exit exhausts. I sometimes hear a GT4 which was bought new and is only used for hillclimbs. It does not sound very different from a normal road going Vantage. Certainly not especially loud. Perhaps for hillclimbs it has to meet a lower level noise test than for circuit racing.

The GT3 track car uses a V12 engine, so quite a different sound compared to the GTE.

What are your plans?

As soon as I posted I remembered the GT4 isn't much different to a road car (I remember the Prodrive video on Youtube where they said this).

And yes, the GT3 is a v12

[JohnG1]

LordBretSinclair said:

A friend has the GT3 set up (2 separate rear boxes) from DAE - sounds epic - very "raspy" and really different to any other V8 sound.

GT3 is a V12 no? Would expect a different sound?

Nevertheless, what does the exhaust system look like?

[oxf88]

JohnG1 said:

GT3 is a V12 no? Would expect a different sound?

Nevertheless, what does the exhaust system look like?

Yes GT3 is a v12 and GT4 is v8 I believe. From what I understand GT4 is so similar to a road car, customers can drive their GT4 to/from the track.

[LordBretSinclair]

Sorry my mistake - it's the GT4 set up at the back.
Basically where the 2 pipes normally go into the single back box by the rear wheels the 2 separate pipes go to 2 small boxes, one on each side of the car just behind the wheel arch.