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ericvv



Member Since: 02 Jun 2011
Location: Near the Jet d'Eau
Posts: 5816

Switzerland 2009 Defender 110 Puma 2.4 SVX Station Wagon Santorini Black
Supacat wrote:
ericvv wrote:
And which, very importantly, provides an unrestricted airflow to the airfilter box, as opposed to the standard Puma air intake pipe which is shockingly narrow at some point.

...but the Airflow Kit II should further optimize the air mass supplied to the turbo which then will further slightly improve the compressed airflow to my already installed Entreq intercooler and SS pipes.


Eric - if the turbo is matched to the current "restricted" trunking, then I'm not sure how you can gain anything; or are you saying that jlr over-spec'd the current turbo and there is headroom for improvements.

Any actual figures you have would be useful to share.


Supacat, no figures, just plain uneducated common sense thinking.
What I am trying to say, there are uncountable comments on here that the standard air intake hard plastic pipe which supplies the intake air to the airfilter box is already restricting the amount of air that the turbo would like to get. So that seems the first bottle neck in the line system, and a line system can only be as good as the first bottleneck it encounters.
So by replacing the standard hard plastic bent narrow air intake pipe by the less restricted Entreq version, or by similar, allows the turbo to pull higher volume of air. And if it does so, it should be able to compress (a bit?) more air and send that to the intercooler. I would have a hard time believing that the turbo design parameters are not having some margin, don't believe JLR are installing a turbo which is always working at its red hot design limits. So there must be at least a bit of extra turbo capability provided the air gets to it in the first place.
Second bottleneck is the standard intercooler which is quite small and can only cool down so much. So, by installing a larger more efficient Entreq intercooler (or Alive Tuning, or other), the possibly higher volume of air coming from the turbo gets cooled/compressed better, and this should mean more usable oxygen for the combustion. Just making the entire flow more efficient by eliminating a few bottlenecks, which seems may give a few extra Kw/HP in the process.
So optimization and higher reliability is what I am after. First, better air volume to the turbo, the turbo then does what that what it can, second, better compressed air cooling resulting in more available/usable oxygen volume, and third but not least, the stainless steel airflow kit which has nothing to do with more or cooler air, but just avoids the standard rubber intercooler pipe from ever splitting again as once happened to me.
I guess there is some logic here, no?
I am not really after more power, my 122HP and 360Nm suit me well as I consider this cube is what it is, and that is no Golf GTI. Surely you can tune it, you can put a bigger turbo, but I do not believe in the long term benefit of that. I am more a believer in the below wise words. Cool Whistle
Eric

Click image to enlarge
 You never actually own a Defender. You merely look after it for the next generation.
http://youtu.be/yVRlSsJwD0o
https://youtu.be/vmPr3oTHndg
https://www.youtube.com/watch?v=_GtzTT9Pdl0
https://www.youtube.com/watch?v=ABqKPz28e6A
https://www.youtube.com/watch?v=rLZ49Jce_n0
https://www.youtube.com/watch?v=XvAsz_ilQYU
https://www.youtube.com/watch?v=K8tMHiX9lSw
https://m.youtube.com/watch?v=dxwjPuHIV7I
https://vimeo.com/201482507
https://www.youtube.com/watch?v=ZSixqL0iyHw
Post #485803 27th Dec 2015 12:52pm
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ericvv



Member Since: 02 Jun 2011
Location: Near the Jet d'Eau
Posts: 5816

Switzerland 2009 Defender 110 Puma 2.4 SVX Station Wagon Santorini Black
Post #485888 27th Dec 2015 6:12pm
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bpman



Member Since: 21 May 2008
Location: Oslo
Posts: 8069

2008 Defender 110 Puma 2.4 SVX Station Wagon Santorini Black
May be on my wish list ... Who knows I may expend my collection next year

Needing an off road one due to house move Shocked
Post #485899 27th Dec 2015 6:35pm
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Wild Card 90



Member Since: 03 Dec 2014
Location: Gerlingen
Posts: 1060

England 2012 Defender 90 Puma 2.2 SW Indus Silver
"As the fitted snorkel looked already great on my Landy I couldn't wait to hear the new hissing sound Wild Card 90 told me about. And after driving up the nearby mountains I can definitely confirm the new sound coming from the big black tube. No empty promises in this regard. Thanks WC90! Thumbs Up "

your welcome Thor44, glad to hear the Entreq snorkel does the job. Their products are consistently good and well thought out.
The snorkel appears to amplify the sound of the air being sucked through the intercooler. It isnīt the sound of the turbocharger, but some sort of induction sound. Interestingly, the character changed (unfortunately quieter, smoother) when I replaced the centre silencer with a straight through system. I cannot fathom why a free flowing exhaust should make a difference. The removal of the silencer does seem to allow the turbo to spin up a little smoother. Generally, the mods to intake and exhaust have made the vehicle easier to drive smoothly.

When my girlfriend first saw the Landy with snorkel and all the kit on it, she reckoned it looked like the rubbish tip robot - Wall-E.
I can see what she means...... Laughing

Click image to enlarge
 1998 Tdi 90 SW,
2008 Td4 90 SW,
2012 2.2 90 SW,
2" raised Trailmaster/Terrafirma
Heavy Track Raids, 255 MTīs,
Recaro CSīs, anorak, wellingtons
Post #485908 27th Dec 2015 6:53pm
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thor44



Member Since: 18 Sep 2015
Location: Ahrntal, Südtirol
Posts: 128

2014 Defender 90 Puma 2.2 SW Indus Silver
Wall-E - the last thing still working after everything else on earth came to an end...I guess the looks are not the only common thing to the trusty Landy. Very Happy

Back to the sound: I've noticed such sound only on quite hot summer days during acceleration, now I can finally enjoy it every single day. Thumbs Up
If there was only a way that the motor (intercooler?) sounded all the time the way it does on the first 50-100m after being parked all day long in the warm sun. I refer to it as something like "beast mode". Do you encounter this as well or is it just me? Laughing
Post #486016 27th Dec 2015 10:51pm
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mick



Member Since: 08 Feb 2010
Location: Yorkshire
Posts: 2109

England 2010 Defender 130 Puma 2.4 HCPU Rimini Red
Not to keen on the side mount one but the wing top one looks ok
Post #486047 27th Dec 2015 11:45pm
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Supacat



Member Since: 16 Oct 2012
Location: West Yorkshire
Posts: 11018

United Kingdom 2013 Defender 110 Puma 2.2 XS DCPU Keswick Green
ericvv wrote:
I guess there is some logic here, no?


It's certainly a string of thoughts but have you considered all the variables in the system?

For instance, the Barometric Pressure Sensor:

"When the vehicle is driven at high altitudes the ambient pressure reduces causing the compressor wheel to do less work for the same boost pressure. To prevent the turbine wheel from over-speeding under these conditions a barometric pressure sensor, located in the ECM, protects the turbocharger by opening the vanes further to reduce the turbine wheel speed. This is known as the altitude margin of the turbocharger."

Would it seem logical that the inverse was also true, i.e. if you are getting more air into the turbo then the vanes should be closing to keep the speed/boost up, otherwise the turbine wheel will be under-speeding or stalling?

ericvv wrote:
I am more a believer in the below wise words. Cool Whistle
Eric

Click image to enlarge


The wise words seem to be running counter to what you are advocating - aren't you trying to get the turbo "driving hard" with little thought for the "thermal and mechanical strains"?
Post #486162 28th Dec 2015 11:02am
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ericvv



Member Since: 02 Jun 2011
Location: Near the Jet d'Eau
Posts: 5816

Switzerland 2009 Defender 110 Puma 2.4 SVX Station Wagon Santorini Black
Supacat wrote:
aren't you trying to get the turbo "driving hard" with little thought for the "thermal and mechanical strains"?

Without a map which I neither need, nor am interested in, the short answer to your question is no. You never actually own a Defender. You merely look after it for the next generation.
http://youtu.be/yVRlSsJwD0o
https://youtu.be/vmPr3oTHndg
https://www.youtube.com/watch?v=_GtzTT9Pdl0
https://www.youtube.com/watch?v=ABqKPz28e6A
https://www.youtube.com/watch?v=rLZ49Jce_n0
https://www.youtube.com/watch?v=XvAsz_ilQYU
https://www.youtube.com/watch?v=K8tMHiX9lSw
https://m.youtube.com/watch?v=dxwjPuHIV7I
https://vimeo.com/201482507
https://www.youtube.com/watch?v=ZSixqL0iyHw
Post #486180 28th Dec 2015 12:00pm
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Wild Card 90



Member Since: 03 Dec 2014
Location: Gerlingen
Posts: 1060

England 2012 Defender 90 Puma 2.2 SW Indus Silver
Sadi wrote:
Would be nice if one could buy the side scoop as a single item.


Not quite the single item, but a kit which offers the same components as in the wing top snorkel I have fitted. Once again claiming to improve the intake air flow.

https://www.nakatanenga.de/fahrzeugtechnik...r-td4?c=65 1998 Tdi 90 SW,
2008 Td4 90 SW,
2012 2.2 90 SW,
2" raised Trailmaster/Terrafirma
Heavy Track Raids, 255 MTīs,
Recaro CSīs, anorak, wellingtons
Post #486857 30th Dec 2015 1:29pm
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