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J. C.

Member Since: 29 Oct 2014
Location: Padova
Posts: 38

Did the "full air treatment" and...

On thursday morning I received a "full air kit" (new improved filter, new breather and EGR blanking kit) for my TD6 and installed it immediately.

MPG figures, although in KM/L, can be seen in the picture below ("consumo 1"/trip 1 is before treatment, "consumo 2"/trip 2 is after). Trips are more or less the same, and consist in 80% urban jam and 20% sub-urban junctions with 55mph limit.

Click image to enlarge

As for performance improvement... well... of course it makes a HUGE difference. The most noticeable thing is that now the car pulls from standstills like, well... a normal car. In traffic jam I can drive it by only applying a minimum amount of throttle. It seems to breathe properly now, if I may say so. I also noticed less slippage of the torque converter in the low revs, and also promptier gear changes in the lower band (although as smooth as usual). Only downside, a slight increase in induction noise.

So far, so good.

There is a question I have: in urban traffic jam, when decelerating by lifting the throttle between 1500 and 2000rpm, I can clearly hear a sort of "whoomp" from the engine bay. Cannot describe it in other ways, but it reminds me of the noise of an overheated clutch in a manual car, except for the fact that it happens when decelerating. No discernable mechanical vibration/noises associated. This symptom happens only in city traffic and in the aformentioned rpm band, with warm engine.

What can it be? Is it related to the torque converter (it has 40.000kms from new, as the gearbox,, oil flushed on May 2014), is it the turbo releasing pressure? Opinions welcome!

Admin note: this post has had its images recovered from a money grabbing photo hosting site and reinstated

16th Nov 2014 4:45pm

Dolphinboy

Member Since: 07 Dec 2009
Location: Bristol
Posts: 3156

2015 Range Rover Autobiography SDV8 Baltic Blue

I had the same on my old TD6. dont worry its just the noise the turbo makes. nothing wrong.

16th Nov 2014 6:19pm

J. C.

Member Since: 29 Oct 2014
Location: Padova
Posts: 38

Are you sure? That is excellent news! Roberto
_________________________________________________________________
2002 L322 TD6 HSE in Ipanema Sand with "suicide charcoal" interior.
Other current cars: 1990 MB R129 300SL-24, BMW 118d E87.
Previous cars: '87 Mitsubishi Pajero, '96 Lancia Dedra SW, '91 Lancia Delta Integrale EVO, '01 MB CLK 200k EVO, '03 MB R230 SL 500, '99 Range Rover P38 4,6 HSE.

16th Nov 2014 6:35pm

mjdronfield

Member Since: 04 Nov 2011
Location: Derbyshire
Posts: 7800

2011 Range Rover Vogue SE TDV8 Buckingham Blue

Mine def has more induction noise after fitting k & n.

Egr removal will make turbo spool up slightly sooner I believe.

If you have a remap and come off the throttle, it almost sounds like a Subaru Imprezza....

Tsssst...... 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

16th Nov 2014 7:02pm

J. C.

Member Since: 29 Oct 2014
Location: Padova
Posts: 38

Mine sounds more like a "weee-ooomph", more noisy, less whispering... Roberto
_________________________________________________________________
2002 L322 TD6 HSE in Ipanema Sand with "suicide charcoal" interior.
Other current cars: 1990 MB R129 300SL-24, BMW 118d E87.
Previous cars: '87 Mitsubishi Pajero, '96 Lancia Dedra SW, '91 Lancia Delta Integrale EVO, '01 MB CLK 200k EVO, '03 MB R230 SL 500, '99 Range Rover P38 4,6 HSE.

16th Nov 2014 7:07pm

Joe90

Member Since: 29 Apr 2010
Location: Hampshire
Posts: 6409

What is the "breather" you changed ? .
Experience is the only genuine knowledge, but as time passes, I have forgotten more than I can remember
Volvo V70 P2 2006 2.4 Petrol 170bhp Estate SE
MG Midget Mk1 1962

Previous: L322 Range Rover TDV8 3.6 2008; L322 Range Rover TD6 3.0 2002; P38A Range Rover V8 1999

16th Nov 2014 8:16pm

J. C.

Member Since: 29 Oct 2014
Location: Padova
Posts: 38

Joe, it's the crankcase breather filter. Roberto
_________________________________________________________________
2002 L322 TD6 HSE in Ipanema Sand with "suicide charcoal" interior.
Other current cars: 1990 MB R129 300SL-24, BMW 118d E87.
Previous cars: '87 Mitsubishi Pajero, '96 Lancia Dedra SW, '91 Lancia Delta Integrale EVO, '01 MB CLK 200k EVO, '03 MB R230 SL 500, '99 Range Rover P38 4,6 HSE.

16th Nov 2014 8:39pm

Joe90

Member Since: 29 Apr 2010
Location: Hampshire
Posts: 6409

Yes it is, having a blonde moment

Replaced mine when the dipstick kept shooting out of its holster everytime I started the car .
Experience is the only genuine knowledge, but as time passes, I have forgotten more than I can remember
Volvo V70 P2 2006 2.4 Petrol 170bhp Estate SE
MG Midget Mk1 1962

Previous: L322 Range Rover TDV8 3.6 2008; L322 Range Rover TD6 3.0 2002; P38A Range Rover V8 1999

16th Nov 2014 8:44pm

andyleeds

Member Since: 31 Dec 2010
Location: west yorks
Posts: 952

2005 Range Rover Vogue Td6 Zambezi Silver

that looks quite good

how much did it cost to get that work done? what do you reckon the improvement in mpg is % wise?

17th Nov 2014 12:18pm

J. C.

Member Since: 29 Oct 2014
Location: Padova
Posts: 38

Hi Andy, cost for the stuff (egr blanking kit, breather filter and new air filter, shipped) was 143€. Fitted by myself.

As for MPG, maybe it's a bit too early, but I can safely say that there's a good 10-20% improvement, if not even more in some circumstances. Roberto
_________________________________________________________________
2002 L322 TD6 HSE in Ipanema Sand with "suicide charcoal" interior.
Other current cars: 1990 MB R129 300SL-24, BMW 118d E87.
Previous cars: '87 Mitsubishi Pajero, '96 Lancia Dedra SW, '91 Lancia Delta Integrale EVO, '01 MB CLK 200k EVO, '03 MB R230 SL 500, '99 Range Rover P38 4,6 HSE.

17th Nov 2014 12:30pm

Weegie

Member Since: 09 Jun 2014
Location: East Sussex
Posts: 3234

2008 Range Rover Vogue TDV8 Stornoway Grey

7.9 km/l to 9.9 km/l equates to going from 22.32 mpg to 27.97 mpg according to my conversion tables. John
2008 Stornoway Grey 3.6 Tdv8 Vogue
2005 TD6 Java Black Vogue - Written off!!
GAP iiD BT
2003 Discovery TD5 Auto, Nanocom Evolution - gone to a new home!
MasseyFerguson 152 - No electronics!! - Sold

17th Nov 2014 12:31pm

mjdronfield

Member Since: 04 Nov 2011
Location: Derbyshire
Posts: 7800

The mpg will settle after a while.

Did you fit the upgraded vortex crankcase breather from BMW ?

Never needs changing again........

http://www.fullfatrr.com/forum/topic12853....e+breather

2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

17th Nov 2014 5:21pm

Scottyav

Member Since: 11 Feb 2013
Location: Cannock Staffordshire
Posts: 1204

2007 Range Rover Autobiography TDV8 Zambezi Silver

Occasionally at the twin traffic lights I get the urge to floor it after holding the brake on for it to get to 2000 revs to launch it, laugh at the other car who thinks its a block on wheels in the rear view mirror _____________________________________________________
Zambezi silver Vogue Se unique

18th Nov 2014 8:49am

andyleeds

Member Since: 31 Dec 2010
Location: west yorks
Posts: 952

what do we think the mpg would settle at ? and how easier job is it as that would appear to be a good thing to do?

18th Nov 2014 4:19pm

mjdronfield

Member Since: 04 Nov 2011
Location: Derbyshire
Posts: 7800

My mpg is roughly where it was before, but car is more lively.

Have a search for crankcase breather and I'm sure there is a how to.

No more difficult than changing the original foam element, though to be fair, the garage did mine whilst servicing it.

If you fit a performance air filter as well, you can save a bit on servicing as they don't need to be changed and the cover of the engine doesn't need to come off......

Though you don't leave the performance air filter forever....... 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

18th Nov 2014 5:33pm

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