Vehicle & Technical > Discovery

What a transformation!

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jnoshea:
I know it's a relatively simple procedure but perhaps the next person to do this mod should photograph it and write a step-by-step guide for the workshop section.  Personally, I'm still undecided whether to just blank off the valve between it and the manifold, or to remove the assembly completely.  No real benefit to the latter as I see it, only a little more space in the engine bay.

TimM:
Just to be sure everone knows how simple this is, here is a 30 second guide:

1) if not removing EGR block off the pipe to the EGR - either crimp or 'bung' something in to stop airflow
2) fit a blanking plate either purchased or home made to either end of the EGR pipes

EVEN BETTER

3) remove EGR and throw in nearest bin (for weight saving)

4) have a good thrash and enjoy!

Total cost about £6 and about 10-30 minutes (10 minutes for a mechanic 30 minutes for anybody like me who doiesn't know one end of a spanner from the other!)

Tim.  :wink:

aog:

--- Quote from: "gords" ---I'm gobsmacked :shock:

I finally got round to removing the EGR and blanking the holes today. Took it for a quick test drive and thought I'd driven off in someone elses car :shock:  :?

SNIP

--- End quote ---


Hi, Shirleys Disco is a bit slow, I know it's a auto, would love some more uummph when towing, plus it only seems to do 22 mpg....

Should it do more than this???
How do I know if the EGR is working?
Why does this thing make so much differance?
Should I really take it off?

TimM:

--- Quote from: "jnoshea" ---No real benefit to the latter as I see it, only a little more space in the engine bay.
--- End quote ---


If you remove it you save a tiny bit of weight and gain a little space in your engine bay....

BUT

If you don't blank off both ends then either your Turbo is blowing like crazy to fill a useless void, or your exhaust gases are loosing pressure by filling a useless void, which would lower the effect they have on your turbo (depending on which end you block off).


--- Quote from: "jnoshea" ---I know it's a relatively simple procedure but perhaps the next person to do this mod should photograph it and write a step-by-step guide for the workshop section
--- End quote ---


Good idea, but if you are still doing this:


--- Quote from: "jnoshea" ---I'm off down to the local Land Rover dealer this afternoon to get two blanking plates.
--- End quote ---


Then this must meen you are next and are going to write up the guide - WELL VOLUNTEERED!

Tim  :lol:

TimM:

--- Quote from: "aog" --- Why does this thing make so much differance?

--- End quote ---


When it is open, exhaust gases pass through it back into the inlet manifold.

1) Exhaust gases passing back do not contribute towards your turbo spinning up.
2) Engines run better on cold air, not hot air out of the engine
3) Engines burn the oxygen in the air, recycled air from the exhaust has little or no oxygen.

There are probably more reasons but this should be enough.

Tim.

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