Hoping to record sound difference with V12VS back box on V8V

[Jon39]

Your three videos run, but I don't have any sound.
Tried two different internet browsers.
The in-picture mic symbol is 'greyed' and is showing a diagonal mute line.

[Calinours]

OK, here we go. Sorry it was recorded using a crappy phone mic, which doesn't really capture the difference that well. I suggest using proper amp/speakers to hear the subtle differences that are picked up by that mic. In reality its a tad less subtle than the recordings suggest, though the difference in the systems is really not that much. My goal was a louder 'quiet' mode, and while the difference perhaps isnt as much as I would have liked, by and large I think I achieved it. I also have a very slightly less 'raspy' loud mode, which was also a hope - so I'm happy with the result. Thanks to Mike and Adrian at Bamford Rose.

Hopefully this goes some way to answer the question of the OP

We start with RobGT's old V8VS that has had the full Bamford Rose treatment (again!):

Before (quiet mode) - V8VS SS, BR tuned stainless manifold, BR 200 cell cats, BR baffle, OE V8VS back box, exhaust valve switch in 'closed' position:
https://www.dropbox.com/s/ozb8t78f3h0jybi/VC-S.MOV...


After (quiet mode) - V8VS SS, BR tuned stainless manifold, BR 200 cell cats, BR baffle, V12AMR back box, exhaust valve switch in 'closed' position:
https://www.dropbox.com/s/9v7x30xe0cwgudi/VC-AMR.m...


And...

After (loud mode) - V8VS SS, BR tuned stainless manifold, BR 200 cell cats, BR baffle, V12 AMR back box, exhaust valve switch in 'open' position:

https://www.dropbox.com/s/o68eo7f1w5jko43/VO-AMR.m...





:

[Dobie177]

Calinours said:

OK, here we go. Sorry it was recorded using a crappy phone mic, which doesn't really capture the difference that well. I suggest using proper amp/speakers to hear the subtle differences that are picked up by that mic. In reality its a tad less subtle than the recordings suggest, though the difference in the systems is really not that much. My goal was a louder 'quiet' mode, and while the difference perhaps isnt as much as I would have liked, by and large I think I achieved it. I also have a very slightly less 'raspy' loud mode, which was also a hope - so I'm happy with the result. Thanks to Mike and Adrian at Bamford Rose.

Hopefully this goes some way to answer the question of the OP

We start with RobGT's old V8VS that has had the full Bamford Rose treatment (again!):

Before (quiet mode) - V8VS SS, BR tuned stainless manifold, BR 200 cell cats, BR baffle, OE V8VS back box, exhaust valve switch in 'closed' position:
https://www.dropbox.com/s/ozb8t78f3h0jybi/VC-S.MOV...


After (quiet mode) - V8VS SS, BR tuned stainless manifold, BR 200 cell cats, BR baffle, V12AMR back box, exhaust valve switch in 'closed' position:
https://www.dropbox.com/s/9v7x30xe0cwgudi/VC-AMR.m...


And...

After (loud mode) - V8VS SS, BR tuned stainless manifold, BR 200 cell cats, BR baffle, V12 AMR back box, exhaust valve switch in 'open' position:

https://www.dropbox.com/s/o68eo7f1w5jko43/VO-AMR.m...

Wow- that’s a very clear change... and it really does sound very good indeed in loud mode!!!

[AdamV12V]

Just picking this thread up again and wondering if there would be any interest in my V12VS backbox if I put it up for sale. Its been on the car since new, always garaged car, 8k miles and still in excellent condition.

PM me if you are interested. It may help lubricate the cost of a little plan Im hatching.