Vehicle & Technical > Discovery
Turbo pipework
colintandy:
try these very good hoses bit pricey but are top quality www.twistedperformance.co.uk and you are very welcome
Horness:
:(biglove): HMMM PIPEWORK :(biglove):
Colin - do you have the Disco Hose Kit at £135 fitted there? I'm about to rip out my EGR any day now, and was going to pick up some pipework from my local parts supplier, but those look much nicer. :twisted:
Notice any difference?
colintandy:
i think so it came with the full kit i got uprated intercooler and full bore sports exhaust from twisted performance and i belive that the name is typhoon sillicone hose kit which they sell seperatley and yes they are very well made easy to keep clean not to sure what they sell for seperatley but it sounds about right www.twistedperformance.co.uk speak with charles very nice bloke tell him im still waiting for my stickers :wink:but mine is a 200tdi dident have to do any egr blanking :D
davidlandy:
Hey Colin
still waiting for my stickers too!
When I got my TP intercooler Charles promised me some ages ago, but they never arrived - I even put a link on my website to his as well
I really hope that he is reading this thread!!! hint hint
Porny:
--- Quote ---Something Iv'e been wondering ever since I bought my H reg 200Tdi (but not done anything about), does it affect perfomance if the large pipe that runs from radiator area in to the turbo is split? Is it just an air input or is it pre-warmed, or something?
--- End quote ---
I take it you mean the pipe that runs from the turbo to the intercooler??
If so then yes!!!!
Actually cheaper to buy an uprated silicone set than a standard one from a dealer!!!
To explain a bit further (sorry if this is really basic)...
Air from the air intake (i.e. air filter) gets drawn into the turbo charger and gets compressed, which causes the air to be heated.
Hot air is less dense and carries less oxygen, therefore less oxygen rich air will reach the intake manifold.
The intercooler is added to cool the air and thus make it denser so more oxygen rich air can be pushed into the engine (which will also mean more fuel can be added = more power)
Most intercoolers are of the air to air variety (including all Land Rover products) which means they transfer heat from the compressed air in the intake plumbing to the cooler outside air.
All air to air intercoolers work in the same manner, air is pulled in through the air filter to the turbo charger, compressed then routed to the intercooler.
Once inside the intercooler it passes through a series of small tubes that have many thin fins attached. The heated compressed air flowing through the intercooler heats up the fins and the tubes, then the cool outside air flowing across the fins pulls heat away from the tubes and fins. This heat transfer occurs constantly while the turbo is working - so basically an intercooler is a heat exchanger.
From there it is fed into the intake manifold and into the cylinders.
The problem with having a split hose is that the air compressed by the turbo (and thus now a higher pressure) will be forced out out of the pipework, resulting in less air reachin the intake of the engine - which will result in less power, and an incorrect fuel to air ratio - though this depends on where's it leaking from.
For replacement hoses, I would also recommend Allisport - www.allisport.com
In all honesty, the one in pictures from Twisted Performance isn't the best design - although I doubt whether it actually makes 'that' much difference on a Land Rover.
Although silicone tube is re-enforced to reduce expansion under boost, they do still expand which will reduce flow and induce turbo lag. A solid pipe (with mandrel bend curves) with two small silicone pipe sections at either end is a much better idea... though this is probably more relevant on a performance or race engine than a Diesel Land Rover engine.
Sorry for the long post.
Ian
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