View Full Version : EGR blanking kit
jx2mad
4th April 2013, 03:58 PM
I have just done this and my question is... why does it make such a difference to the way the vehicle drives? Gear changes are smoother and auto box seems to lock up way lower than 80k/h. Altogether a far better drive.Seems to accelerate easier and smoother. Old egr valve didn't seemed to be stuck but I am impressed with difference. :D:D:D:D
harlie
4th April 2013, 06:20 PM
I must do mine....
Laurie
5th April 2013, 07:47 AM
Jim
Basically it comes down to clean cooler air being used in the combustion process. Also all sensors involved are at their optimum, as the heat, oil and soot that is usually returned to be re-combusted are gone. As for the auto it is adaptive and is responding to the small performance improvements. The car is now probable performing as when it was new, the small slide in performance is generally not noticed by most drivers as it takes place over a couple of years, BUT when it is "fixed" the difference is noticeable.
You will also notice your oil will stay clean longer, with the reduction in soot etc, having the effect of better lubrication and longer engine life.
Laurie
jx2mad
5th April 2013, 11:32 AM
As a followup...there is a long fairly steep hill not far from home. Usually the R.R. kicked back to 3rd and revved to 3000rpm going up this hill. Since blanking the EGR system it now flies up in 4th gear, even trying to drop into top if I ease off the pedal. YAHOO :D:D:D
BigJon
5th April 2013, 01:33 PM
Sounds like a good result with your TD6. Now to see if a TDV8 can be done.
jx2mad
8th April 2013, 10:08 AM
My understanding of how it improves performance goes like this. With the old EGR setup, hot air is diverted from the exhaust into the air intake. This would have two undesirable properties. Firstly it would consist of burned gases probably with no oxygen in it. This could upset the air fuel mixture causing the motor to run rich. Secondly, being hot it would be less dense than cold air, lowering the compression slightly. It seems that cold dense oxygenated air would certainly improve performance and lower fuel use, as I have found in my case. If this poor explanation is wrong please correct me. Jim
bluegreygreen Rangie
12th April 2013, 11:04 PM
They say and well the idea is that the system actually believe it or not reduces combustion temps and reduces emission's by doing so (that's a basic explanation)
At the end of the day clean cool air is better than hot re burnt crap and what you want in any engine...and gives better efficiency (power and economy).... by then further removing the stupid egr valve it can only help the overall flow of things even more and I bet having all exhaust gasses passing immediately thru the turbo creates better response even if its only a small difference, then I wonder also about how well the egr seals when its old and if boost to some degree is lost etc
I blanked two of my TD6 cars off now and the results are just as you say.. its a no brainer :D
Dave
jx2mad
18th April 2013, 03:41 PM
A further followup to my vehicle. Before removal 11.4 l/100k around town (n.w. Sydney) Following removal after approx 150l of diesel is 9.8 l/100k for the same driving situation.:D:D:D:D:D:D
33chinacars
18th April 2013, 10:51 PM
Thats excellent Jimbo .:BigThumb: But I believe that it will settle down over time and get back closer to pre removel figures. Lets know what happens long term
Gary
jx2mad
19th April 2013, 07:29 AM
Hi Gary. Yes that is probably what will happen. The second computer hasn't been reset for around 2 years. However it sounds promising as this computer dropped 0.1l/100k after two days so the average over a long time period will take a long time to change. As I have mentioned earlier the auto box gear change is soooo smooth. Time will tell. Jim :D:D:D
jx2mad
30th April 2013, 08:07 AM
New fuel consumption figures available. Have just used 250l fuel and driving a combination of outer city and trip to the south coast(approx 500km) fuel computer sat at 9.3l/100k when I arrived home Sunday night. I know it will rise a bit due to traffic driving, but to get to 9.3l on the open road is great. The meter read 9.5l/100k traffic driving so if it settles somewhere around that mark... YAHOO!!! :D:D:D:D:D:D:D:D:D:D:D
33chinacars
30th April 2013, 12:29 PM
Hi Jim . Can't complain about those figure now can you :thumbsup:
Gary
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