V6 Exhaust now sorted....
-
- (Donor 2016)
- Posts: 11386
- Joined: 28 Mar 2013, 22:05
- x 1761
V6 Exhaust now sorted....
New (changed) exhaust fitted. ZERO drone in car now and very comfortable at any speed.....sorted.
Alasdair
Activa, the Moose Dodger
Activa, the Moose Dodger
-
- Posts: 1033
- Joined: 27 Dec 2012, 11:41
- x 64
Re: V6 Exhaust now sorted....
Sounds great!
Fake Concern, Volvo C30 T5 2011
Mrs Concern, Renault Moodus 1.6 Privilege 2004
Ms Concern No1, Pug 207 1.4 2008
Ms Concern No2, Citroen C4 VTS 2007
Mrs Concern, Renault Moodus 1.6 Privilege 2004
Ms Concern No1, Pug 207 1.4 2008
Ms Concern No2, Citroen C4 VTS 2007
-
- (Donor 2016)
- Posts: 11386
- Joined: 28 Mar 2013, 22:05
- x 1761
-
- A very naughty boy
- Posts: 53062
- Joined: 30 Apr 2005, 23:33
- x 7349
Re: V6 Exhaust now sorted....
Certainly sounded gorgeous when I heard it 'live' the other day Alasdair 

Jim
Runner, cyclist, duathlete, Citroen AX fan and the CCC Citroenian 'From A to Z' Columnist...
Runner, cyclist, duathlete, Citroen AX fan and the CCC Citroenian 'From A to Z' Columnist...
-
- (Donor 2016)
- Posts: 11386
- Joined: 28 Mar 2013, 22:05
- x 1761
Re: V6 Exhaust now sorted....
Thanks Jim, next time your down we can take it out and you can see what it is like "in car"
Alasdair
Activa, the Moose Dodger
Activa, the Moose Dodger
-
- A very naughty boy
- Posts: 53062
- Joined: 30 Apr 2005, 23:33
- x 7349
Re: V6 Exhaust now sorted....
That'll be magic AlasdairStickyfinger wrote:Thanks Jim, next time your down we can take it out and you can see what it is like "in car"

I was particularly impressed with how they finished off the tailpipes... very smart indeed!
Jim
Runner, cyclist, duathlete, Citroen AX fan and the CCC Citroenian 'From A to Z' Columnist...
Runner, cyclist, duathlete, Citroen AX fan and the CCC Citroenian 'From A to Z' Columnist...
-
- Posts: 8695
- Joined: 10 Apr 2005, 17:23
- x 690
Re: V6 Exhaust now sorted....
What exhaust did it have before - an old original system with the back box rotted away inside or a cheap 3rd party one ? (EG, Polish Ebay....)
My first V6 had an original exhaust system with a really bad drone/boom at 1500 rpm, presumably all the baffles in the back box were rotted away... I replaced it with one of the £80 Polish ones and the 1500rpm boom went away to be replaced with a 2500rpm drone!

On my current V6 the original factory exhaust was very quiet when I first got it until it burnt a hole through the clamp area at the front of the back box - limited funds again dictated that it would have to be a cheap £80 Polish Ebay job, and whilst some of the finishing wasn't brilliant and a couple of pipe angles had to be "adjusted" to get things to line up properly (thanks David
) once on it sounds absolutely fine - although it sounds slightly louder on the outside than the original OEM system it has a nice sound, and it's as quiet as a mouse inside the car...and no 2500rpm drone even though it appears to be the same design I fitted to the old V6...
My first V6 had an original exhaust system with a really bad drone/boom at 1500 rpm, presumably all the baffles in the back box were rotted away... I replaced it with one of the £80 Polish ones and the 1500rpm boom went away to be replaced with a 2500rpm drone!


On my current V6 the original factory exhaust was very quiet when I first got it until it burnt a hole through the clamp area at the front of the back box - limited funds again dictated that it would have to be a cheap £80 Polish Ebay job, and whilst some of the finishing wasn't brilliant and a couple of pipe angles had to be "adjusted" to get things to line up properly (thanks David

Simon
2016 Nissan Leaf Tekna 30kWh in White
1997 Xantia S1 3.0 V6 Auto Exclusive in Silex Grey
2011 Peugeot Ion Full Electric in Silver
1998 Xantia S2 3.0 V6 Auto Exclusive
1997 Xantia S1 2.0i Auto VSX
1978 CX 2400
1977 G Special 1129cc LHD
2016 Nissan Leaf Tekna 30kWh in White
1997 Xantia S1 3.0 V6 Auto Exclusive in Silex Grey
2011 Peugeot Ion Full Electric in Silver
1998 Xantia S2 3.0 V6 Auto Exclusive
1997 Xantia S1 2.0i Auto VSX
1978 CX 2400
1977 G Special 1129cc LHD
-
- (Donor 2016)
- Posts: 11386
- Joined: 28 Mar 2013, 22:05
- x 1761
Re: V6 Exhaust now sorted....
Original OEM, which I have kept just in case things did not work out for this one and I had to swap back to the orginal.
It has some areas that would of needed attention on the back box which I think is caused by condensation . The middle box is perfect having had dry life without no salt, pipes are good as well.
I wanted better breathing and a little more "burble & rasp". It is about it all adding up to better response, K&N filter, throttle body, distribution manifold, exhaust ect.....started to strip the spare engine yesterday to work on the cylinder heads and plan up some Ss exhaust manifolds.
It has some areas that would of needed attention on the back box which I think is caused by condensation . The middle box is perfect having had dry life without no salt, pipes are good as well.
I wanted better breathing and a little more "burble & rasp". It is about it all adding up to better response, K&N filter, throttle body, distribution manifold, exhaust ect.....started to strip the spare engine yesterday to work on the cylinder heads and plan up some Ss exhaust manifolds.
Alasdair
Activa, the Moose Dodger
Activa, the Moose Dodger
-
- Posts: 8695
- Joined: 10 Apr 2005, 17:23
- x 690
Re: V6 Exhaust now sorted....
Where is the new system from ? Is it custom made ?Stickyfinger wrote:Original OEM, which I have kept just in case things did not work out for this one and I had to swap back to the orginal.
It has some areas that would of needed attention on the back box which I think is caused by condensation . The middle box is perfect having had dry life without no salt, pipes are good as well.
Just an observation - if you've fitted a custom exhaust with better flow / less restriction than the OEM design, keep in mind that the ES9J4 is a speed/density (MAP) system which means that it is unable to detect and compensate for any increase in volumetric efficiency afforded by an improved exhaust flow, compared with a MAF system where the increased flow would be automatically detected and utilised, and the correct mixture maintained.I wanted better breathing and a little more "burble & rasp". It is about it all adding up to better response, K&N filter, throttle body, distribution manifold, exhaust ect.....started to strip the spare engine yesterday to work on the cylinder heads and plan up some Ss exhaust manifolds.
On a speed/density system an exhaust restriction will cause it to run too rich while conversely a better than normal (standard OEM) exhaust flow will cause it to run too lean because the MAP tables are all computed for the Volumetric Efficiency of the OEM exhaust... In short it will cause it to run leaner than normal and not utilise the benefit of increased flow, and at worst if you go too far it may actually run worse due to running far too lean.
(If you've had the misfortune to have the pipe between the cat and the centre silencer split and fall apart whilst driving as I have, you'll notice that the engine performance goes completely down the tubes when the exhaust pipe terminates just after the cat!

Luckily for you I have just the solution for you in my fuel pressure regulator thread...

Simon
2016 Nissan Leaf Tekna 30kWh in White
1997 Xantia S1 3.0 V6 Auto Exclusive in Silex Grey
2011 Peugeot Ion Full Electric in Silver
1998 Xantia S2 3.0 V6 Auto Exclusive
1997 Xantia S1 2.0i Auto VSX
1978 CX 2400
1977 G Special 1129cc LHD
2016 Nissan Leaf Tekna 30kWh in White
1997 Xantia S1 3.0 V6 Auto Exclusive in Silex Grey
2011 Peugeot Ion Full Electric in Silver
1998 Xantia S2 3.0 V6 Auto Exclusive
1997 Xantia S1 2.0i Auto VSX
1978 CX 2400
1977 G Special 1129cc LHD
-
- (Donor 2016)
- Posts: 11386
- Joined: 28 Mar 2013, 22:05
- x 1761
Re: V6 Exhaust now sorted....
Cheers for the info
I fitted a new Bosch regulator a few days after the exhaust which was custom made for the car.~
(Bosch 0280160562 Pressure Regulator)
I fitted a new Bosch regulator a few days after the exhaust which was custom made for the car.~
(Bosch 0280160562 Pressure Regulator)
Last edited by Stickyfinger on 10 May 2016, 14:19, edited 1 time in total.
Alasdair
Activa, the Moose Dodger
Activa, the Moose Dodger
-
- Posts: 8695
- Joined: 10 Apr 2005, 17:23
- x 690
Re: V6 Exhaust now sorted....
3.5 bars though, or just the standard 3.0 ?
Simon
2016 Nissan Leaf Tekna 30kWh in White
1997 Xantia S1 3.0 V6 Auto Exclusive in Silex Grey
2011 Peugeot Ion Full Electric in Silver
1998 Xantia S2 3.0 V6 Auto Exclusive
1997 Xantia S1 2.0i Auto VSX
1978 CX 2400
1977 G Special 1129cc LHD
2016 Nissan Leaf Tekna 30kWh in White
1997 Xantia S1 3.0 V6 Auto Exclusive in Silex Grey
2011 Peugeot Ion Full Electric in Silver
1998 Xantia S2 3.0 V6 Auto Exclusive
1997 Xantia S1 2.0i Auto VSX
1978 CX 2400
1977 G Special 1129cc LHD
-
- (Donor 2016)
- Posts: 11386
- Joined: 28 Mar 2013, 22:05
- x 1761
Re: V6 Exhaust now sorted....
3.5 Bar, and I like the result 
All the little things seem to be making a nice improvement to the response, not a clue on any/if increase in BHP but it seems to pull much better these days
(fitted new plugs as well)
I have an MOT at 3pm, I wonder if I will see any difference in the outputs.

All the little things seem to be making a nice improvement to the response, not a clue on any/if increase in BHP but it seems to pull much better these days
(fitted new plugs as well)
I have an MOT at 3pm, I wonder if I will see any difference in the outputs.
Last edited by Stickyfinger on 10 May 2016, 14:25, edited 1 time in total.
Alasdair
Activa, the Moose Dodger
Activa, the Moose Dodger
-
- Posts: 8695
- Joined: 10 Apr 2005, 17:23
- x 690
Re: V6 Exhaust now sorted....
Cool. Did you notice any change, or did you change the exhaust system at the same time without a chance to drive it in between ?
Simon
2016 Nissan Leaf Tekna 30kWh in White
1997 Xantia S1 3.0 V6 Auto Exclusive in Silex Grey
2011 Peugeot Ion Full Electric in Silver
1998 Xantia S2 3.0 V6 Auto Exclusive
1997 Xantia S1 2.0i Auto VSX
1978 CX 2400
1977 G Special 1129cc LHD
2016 Nissan Leaf Tekna 30kWh in White
1997 Xantia S1 3.0 V6 Auto Exclusive in Silex Grey
2011 Peugeot Ion Full Electric in Silver
1998 Xantia S2 3.0 V6 Auto Exclusive
1997 Xantia S1 2.0i Auto VSX
1978 CX 2400
1977 G Special 1129cc LHD
-
- (Donor 2016)
- Posts: 11386
- Joined: 28 Mar 2013, 22:05
- x 1761
Re: V6 Exhaust now sorted....
yes I did drive it before and after, much better pulling at low revs.....cannot really when flat out tell but she is running very well atm.
Very hard to tell as I keep changing little things
....but certainly not worse 
Very hard to tell as I keep changing little things


Alasdair
Activa, the Moose Dodger
Activa, the Moose Dodger
-
- Posts: 8695
- Joined: 10 Apr 2005, 17:23
- x 690
Re: V6 Exhaust now sorted....
As long as your oxygen sensor is working properly the change in fuel pressure won't hurt your emissions test. My old V6 went through an emissions test with flying colours with its 3.5 bar regulator!Stickyfinger wrote:3.5 Bar, and I like the result
All the little things seem to be making a nice improvement to the response, not a clue on any/if increase in BHP but it seems to pull much better these days
(fitted new plugs as well)
I have an MOT at 3pm, I wonder if I will see any difference in the outputs.
If you've done other jobs like spark plugs etc you may see an improvement over your last MOT as well.
And yes mine does seem to pull really well low down too.

Simon
2016 Nissan Leaf Tekna 30kWh in White
1997 Xantia S1 3.0 V6 Auto Exclusive in Silex Grey
2011 Peugeot Ion Full Electric in Silver
1998 Xantia S2 3.0 V6 Auto Exclusive
1997 Xantia S1 2.0i Auto VSX
1978 CX 2400
1977 G Special 1129cc LHD
2016 Nissan Leaf Tekna 30kWh in White
1997 Xantia S1 3.0 V6 Auto Exclusive in Silex Grey
2011 Peugeot Ion Full Electric in Silver
1998 Xantia S2 3.0 V6 Auto Exclusive
1997 Xantia S1 2.0i Auto VSX
1978 CX 2400
1977 G Special 1129cc LHD