 | Home > Technical > Puma EGR Removal |
 
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| 3WHouse Member Since: 24 Jan 2008 Location: Msk Posts: 70   
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Who has made it? )) Def`s 90 & 110 Monochrome.
You can go fast i can go anywhere.)) http://www.offroadpower.ru/ |
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28th Oct 2009 8:18am |
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| mrwoo Member Since: 03 Jan 2008 Location: Cheshire Posts: 281  
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I've fitted an EGR blanking plate supplied BAS, this was part of an experiment to see what happened and the majority of guys who fitted the plate had a MIL light on the dash. The MIL light was a result of the intake pressure being out of range, sucking more fresh air (which is what we want) than recirculated air via the EGR.
I found that drilling a 15>20mm hole in the plate kept the ranges happy without the MIL light coming on, this isn't as good as a fully blanked EGR but is better than none. Rich 
PS there is another posting on here about this - http://www.defender2.net/forum/topic358.html?highlight=egr |
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28th Oct 2009 8:36am |
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| 3WHouse Member Since: 24 Jan 2008 Location: Msk Posts: 70
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mrwoo, thanks
// Remove a theme Def`s 90 & 110 Monochrome.
You can go fast i can go anywhere.)) http://www.offroadpower.ru/ |
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28th Oct 2009 9:12am |
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| Pob Member Since: 23 Jan 2009 Location: Midlands Posts: 119 
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Turbo uses the hot exhaust gases to drive a turbine (hence name turbo charger) which then drives a fan that blows air into the intake to be burnt with more fuel. Intercooler is there to chill the air to make the air more dense so allowing more fuel to be burnt.
EGR takes waste gases and then they are fed back into the engine to be mixed with fresh air and re-burnt to get rid of some of the nasties in the gases. I hope that makes sense - sort of   110 Hard top |
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3rd Nov 2009 9:21pm |
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| 110SEB Member Since: 29 Jan 2009 Location: Essex, England Posts: 1444 
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Very helpful Pob, thank you. I was being stupid. Had I actually thought about it properly, I would have worked out the difference, but your very clear explanation has revived my knowledge. Thank you.
How would preventing the hot waste gasses being reburnt benefit the car. Would it mean that the combustion mixture is less diluted with waste gasses and therefore produce more power? Wouldn't this have an adverse effect on fuel economy? |
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3rd Nov 2009 10:37pm |
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| Mad Cow Member Since: 27 Oct 2009 Location: Hertfordshire Posts: 292  
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EGR is purely to reduce emmissions not for performance.
Also nice clean air is better than shoving unburnt hydro-carbons back into the engine And EGR valve will restrict airflow and the valve can coke up, even further restricting airflow. It is very common on TDIs and TD5s to not just to blank off the EGR (which just removes the unburnt gasses) but to fit a bypass, that removes the valve altogether and replaces it with a straight piece of tube. Not sure if anyone has developed this idea for the Puma though. MAD COW 2007 90 Hard Top - 2009 BMW F800GS - 2002 CCM 604E Dual Sport Project90 |
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3rd Nov 2009 11:55pm |
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| HotelCharlie Member Since: 20 Oct 2011 Location: Kavala, Greece Posts: 25  
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Puma engine has sensors that will sense the lack of, or wrong amount of exhaust gas recirculating to the intake.
Any incorrect value of gasses recirculating will fault the engine. So no full blanking plate like for TD5, but a holed plate allowing some gasses to go through or a reprogrammed ECU blocking the EGR and changing the sensor trigger values. <img> |
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13th Jul 2013 8:18pm |
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| theorangebandit Member Since: 03 Jun 2013 Location: Stowmarket Posts: 862 |
ER is a hippy piece of crap that has ruined diesel engines. Engine designers know that diesel needs cool dense air and a nice squirt of diesel. This gives a clean and smooth combustion and maximum power output and econamy.
Enter the hippy How about we reduce power and econamy by introducing hot  air into the iduction ?
Idiot engine marketers That is a brilliant idea ! Fools ! EGR is the devil. We upgrade our induction pipe work, our inter oilers and filter. And the last hurdle is a dose of hot oily air from the exhaust ! Its like making your dinner bigger by on the plate (best description I'vegiven yet lol)
Do not get me starting on DPFs same hippy new crap idea Forgive my rant the wine is typing for me |
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13th Jul 2013 8:26pm |
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| wyvern Member Since: 14 Dec 2009 Location: Cornwall Posts: 2075 
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Hi OB, I sugest you look at the numorous posts on this on the forum, A lot of things have happend since the original post - so may be worth doing a search on the things that Porny and Pete have done at their companies ! Poppy - TDCI (Puma) 110XS 2.2 - Camper conversion - see the build here - https://www.defender2.net/forum/topic56530.html Elgar -TDCI(Puma) 110XS Dormobile - now sold Devon & Cornwall 4x4 Response - DC126  |
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13th Jul 2013 8:35pm |
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| theorangebandit Member Since: 03 Jun 2013 Location: Stowmarket Posts: 862 |
Would your suggestion be in the way of a solution to common EGR faults. And improving its purpose ? If so im all ears do love an engineering triumph. |
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13th Jul 2013 9:11pm |
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| wyvern Member Since: 14 Dec 2009 Location: Cornwall Posts: 2075
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Peter at BAS have a remap that shuts the EGR and allows the motor to work with no lights on the dash coming on,
it also means no mechanical change to the engine - it also lets you revert to normal use if needed. 
Prony at IRB has a system that will remove the EGR and allow you to run the motor without any dash warning light on
As I said, do a search on the site and see all the numerous posts on 'EGR removal' ..... 
From personal experience I can say its a big improvement. Poppy - TDCI (Puma) 110XS 2.2 - Camper conversion - see the build here - https://www.defender2.net/forum/topic56530.html
Elgar -TDCI(Puma) 110XS Dormobile - now sold Devon & Cornwall 4x4 Response - DC126 |
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13th Jul 2013 10:46pm |
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| BigWheels Member Since: 21 Mar 2010 Location: Somerset Posts: 1405 
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While I hate the political "hippy" correctness, the availability of Ford's (Transit) motors has kept the continuing production of Defenders running.
It would have cost too much for a new LR designed engine to replace the TD5 motor according to James Taylor's book. Lower emissions in the air are healthier to inhale. And LE Defenders can still go in LE zones, including other countries. However DPFs & the whole 2.2 thing for an obsolescent vehicle.. much less sense economically. Have any commercial fleets been replaced or supplied with 2.2s so far? Land Rover Defenders. 67 years heritage, minimal appearance changes, still going strong all over the world. Not a fashion vehicle, but fashionable to own. Made for the needy, not the greedy. Ta ta Defender |
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13th Jul 2013 11:31pm |
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| Splitpin Member Since: 07 May 2013 Location: Midlands Posts: 100
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Ford supplying engines in LRs is not a new thing, the TDV6 is a for unit.
The use of egr is to reduce burn temperatures in the combustion buy introducing burnt air which contains less oxygen. When the burn temps raise above 900 degrees approx the nox gases exhausted are much higher. All of the work done or bits added are to comply with emission regulations put upon manufacturers nowadays. |
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14th Jul 2013 8:58am |
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| theorangebandit Member Since: 03 Jun 2013 Location: Stowmarket Posts: 862 |
I totally understand the idea of the egr and if it could've been achieved with a cleaner burn it would not be an issue
EGRs only active when cruising. When cruising you do not require maximum power or torque. Warm air burns more efonomacally and so is ideal for motorway. But it just doesn't seem to function right I know the guys at BAS and IRB have achieved some fantastic things from the moment I joined the forum I have followed there work. Problem is that in older engines like the 300 tri an EGR blank kit was a bolt on affair and I fitted hundreds. Yet nowadays we need to map them out . Roll in people with the machines and to.e to re write an ECU |
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14th Jul 2013 9:20am |
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