Rad blind experiment - Page 10

Dieselman · 29-04-2009, 06:19 PM

Quote:

Originally Posted by kth286

Olivier

All very good BUT what outcomes are you achieving ?

Do you mean what does he want to achieve.?

If so, I believe he has had issues with the fuel filter remaining too cold and like me, he's trying the rad blind to gauge effect on running and economy.

Since blocking the EGR I noticed a reduction of ~50c in EGT temps and a tendency for the engine to loose heat more quickly at cruising speeds.

He should see an economy increase just by removing the fan, as it really doesn't seem to be required for normal motoring on these engines.

Blocking the EGR is self explanatory, it stops soot being recycled in the airstream.

Olivier · 29-04-2009, 06:24 PM

Quote:

Originally Posted by kth286

Olivier

All very good BUT what outcomes are you achieving ?

Free advertising for budweiser?

Ok, its cheeky, but funny.

Dieselman · 29-04-2009, 06:37 PM

That is as hot as it will get and it needs to be standing after town work to get to that.
How tightly does it seal behind the grille itself, mine is pretty tight as it has curved edges. The idea is to force more air over the top of the car by stopping it entering the engine bay.

Does the car run better on WVO now, or no noticible change?

Olivier · 29-04-2009, 06:54 PM

Its only held by the front grill and the fan sucking it on the grill (basic). I drove fast enough and still on the same position. Its temporary though, next one will be like yours attach to the thin plastic grill.
I did notice a better run today on WVO, more response, but I did a lot of mod on one day then I wouldn't know what helped the most, all of them I reckon. Again the filter was really hot, never seen before, even with the fan off and the heater pass throught the filter as I previously did.
I even did a filter shield once to keep the filter hot without any success, still only warm to touch.
I guess today is a combination of all:
no fan
heater redirected to filter
blocked radiator (mainly)
It's getting there.
The car run better today, tommorrow will tell if it's consistant

kth286 · 30-04-2009, 09:00 AM

I guess what most people want to see is :-

How much extra fuel economy are you achieving as a result of reducing the drag of the car with these mods.

ie. how much (as a percentage) has your mpg improved.

Olivier · 30-04-2009, 09:10 AM

This sould tell you?

Quote:

Originally Posted by Dieselman

I thought it was about time to fill up...!!!

Last fill I forgot to reset the trip straight away so there are 7 additional miles to add onto this, though I did hit my target of 750 miles per tank...

Might go for 800 next...

renault12ts · 30-04-2009, 10:00 AM

No way!!! I once did 625 on a tank in 2000 in the same car. I was convinced I was on dirty air for about the last 25 miles. That's brilliant.

How many litres were in the tank at the beginning?

29-04-2009, 06:54 PM	#139
Olivier Hardcore MB Enthusiast Join Date: Oct 2008 Location: Edinburgh Car: E300 TD 1997 Posts: 874	Its only held by the front grill and the fan sucking it on the grill (basic). I drove fast enough and still on the same position. Its temporary though, next one will be like yours attach to the thin plastic grill. I did notice a better run today on WVO, more response, but I did a lot of mod on one day then I wouldn't know what helped the most, all of them I reckon. Again the filter was really hot, never seen before, even with the fan off and the heater pass throught the filter as I previously did. I even did a filter shield once to keep the filter hot without any success, still only warm to touch. I guess today is a combination of all: no fan heater redirected to filter blocked radiator (mainly) It's getting there. The car run better today, tommorrow will tell if it's consistant __________________ E300 TD 1997 on WVO

30-04-2009, 10:00 AM	#142
renault12ts Hardcore MB Enthusiast Join Date: Mar 2009 Car: s210 E320CDI avantgarde Posts: 3,266	No way!!! I once did 625 on a tank in 2000 in the same car. I was convinced I was on dirty air for about the last 25 miles. That's brilliant. How many litres were in the tank at the beginning? Last edited by renault12ts; 30-04-2009 at 10:06 AM.

29-04-2009, 06:37 PM	#138
Dieselman Hardcore MB Enthusiast Threadstarter Join Date: Jul 2003 Posts: 19,310	That is as hot as it will get and it needs to be standing after town work to get to that. How tightly does it seal behind the grille itself, mine is pretty tight as it has curved edges. The idea is to force more air over the top of the car by stopping it entering the engine bay. Does the car run better on WVO now, or no noticible change?

30-04-2009, 09:00 AM	#140
kth286 Hardcore MB Enthusiast Join Date: Feb 2003 Location: Caversham Berks Car: E320 Coupe Posts: 1,441	I guess what most people want to see is :- How much extra fuel economy are you achieving as a result of reducing the drag of the car with these mods. ie. how much (as a percentage) has your mpg improved.

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