PUMA Performance Up grade

[Drover]

Just got off the phone with Pete Bell from Bell Auto services (BAS) and Andrew from AlliSport. Yorkshire England.

On the way from the "old dart" is a new hi-capacity intercooler and BAS Re-Map interface.

So much cheaper and probably better than anything available in Australia.

Being Sent UPS express - can't wait :D

[Nera Donna]

Drover, sounds really intersting and promissing. Keep us all posted on how it all works out. Best of luck.[thumbsupbig]

[pc3]

Sounds good when my 3 yrs are up I might look into this !

[Beckford]

I seen your rig at the dealers the other day. Great vehicle!

What brand are the rock sliders?

Beckford.

[Drover]

Hi Beckford,

They are just the standard Land Rover SVX side steps. I am going to cut the brackets and raise them up a couple of inches, or least I am thinking of it.

I hope Alto's were looking after it...:)

[5teve]

Should be good :)

I have just finished fitting an Allard intercooler / egr replacement to my TD5 replacing all the cooling system, putting EGT and Boost gauge in place, installing a provent and fixing all the little niggly things.... and fixing new ones i found

I should be starting it up this weekend... and then we'll see how it goes! I'm looking forward to it... then we'll see if tombie can do me a slightly bigger map than the one he did me :)

Steve

[Drover]

Look What arrived today....:D

Alli-Sport uprated intercooler and the BAS remap device.

As soon as Alto's are finished chasing water leaks, the fun will begin.

https://www.aulro.com/afvb/images/imported/2011/05/78.jpg


https://www.aulro.com/afvb/images/imported/2011/05/79.jpg

Cheers

[TimNZ]

Mmmmmmmmm.... Shiny!!! :)

[Allan]

Does this remap do away with the EGR on the Puma, I think mine is on its last legs and as warrenty runs out in October could be the way to go.

Allan

[Drover]

Hey Allan,

Glad to read that you are keeping the SVX :D

Yes, the modified map will include the new EGR shut off.

There is a bit of extra info on Defender2, along with direct posts from Pete Bell. This thread is a must read if you are considering it.

Defender2 - View topic - EGR shut to minimium tuning upgrade available at BAS & I (http://www.defender2.net/forum/topic4681.html)

Cheers

[Drover]

More bits -

TERRAFIRMA Silicon hose set.

(Dealer rang to day, PUMA is ready for collection Monday Arvo....wont be long now)

https://www.aulro.com/afvb/images/imported/2011/06/1366.jpg

[Naks]

I also have the BAS remap - Orxy now goes like the clappers.

I requested 2 maps from Pete: a tuned one and a standard map with EGR-shut. I ran the standard EGR-shut map on a 6000km trip to Namibia and got average consumption of 10.4l/100km. Not bad considering a 500kg load with RTT on top.

For everyday use I run the tuned map, and it goes like a bomb. I really have to resist the urge to race hatchbacks at the traffic lights :angel:

Couple of issues though:

1. The standard map has a flat spot in 6th gear, so the tuned map accentuates this. Not much Pete can do from 10,000km away, so I have to live with it.

2. When I run the tuned map, there is coolant loss. I'm not sure where this is occurring, probably increased temperature in the head causes it to distort slightly & coolant evaporates?

[Drover]

Hey Naks,

I have read some of your posts on Defener2, it seem that your coolant use is an isolated case ?

Has Pete offered any possible causes or solutions ?

Have you ruled out the EGR ?

I recall someone stating that it is actually liquid cooled. ?

Thanks for your post all info is good at this early stage.

Cheers

[Naks]

I have read some of your posts on Defener2, it seem that your coolant use is an isolated case? Has Pete offered any possible causes or solutions? Have you ruled out the EGR ?


A bit difficult for Pete to diagnose the coolant loss. It could be the EGR - there is an assembly part that needs to be replaced on the EGR next week, it could be where the coolant is going.

But strange that it only loses coolant when running the tuned map - I can only conclude that the higher EGTs and head temps are causing this. Although I find that the EGT comes down MUCH quicker when I run the tuned map compared to the OEM & EGR-shut maps.

[Drover]

Hey Naks,

Certainly interesting and please keep us up dated on the outcome of the repairs to EGR assembly next week.

I would be very surprised if coolant use was caused by a distortion of the head, I think that if that was the cause it would quickly leads to terminal problems.

Cheers

[Drover]

Well, got the PUMA back today and took straight to it with a couple of spanners....
Old intercooler out - (certainly some difference to the New Allisport version).

https://www.aulro.com/afvb/images/imported/2011/06/1148.jpg

AlliSport Up Rated Intercooler in...

https://www.aulro.com/afvb/images/imported/2011/06/1149.jpg

TerraFirma silicon hoses. (Fitting these was hardest part of the job...)

https://www.aulro.com/afvb/images/imported/2011/06/1150.jpg

BAS hooked up and standard program downloaded.

https://www.aulro.com/afvb/images/imported/2011/06/1151.jpg

https://www.aulro.com/afvb/images/imported/2011/06/1152.jpg

https://www.aulro.com/afvb/images/imported/2011/06/1153.jpg

Standard programme already EMailed to Pete Bell...now just waiting for "Tuned" programme to come back.

[cal415]

very interested to see the outcome, i am keen to buy a puma very soon, but have my doubts about their performance....

[Allan]

Looking forward to your report, I am thinking this is the way to go.

Allan

[Drover]

Well I got the Map back from Bell Auto Services this morning.


Down loaded the map onto the BAS device and have now uploaded it onto the ECU.

https://www.aulro.com/afvb/images/imported/2011/06/1118.jpg

Just took it out for quick test run and the difference is unbelievable, the motor has been so freed up it is hard to believe that it is the same engine.

Power develops immediately in the low gears and will pull 4th, comfortable keeping up with the traffic from 1450rpms/40k's. It so much more drivable than before, without using any effort.

Power is delivery is very smooth but will come on strong if the pedal is pushed down. I have only been to 3000rpm's and that is plenty.

Ordinary driving I find that I am barley touching the gas pedal for same result as where before I was using 3-5cm of down travel. So fuel consumption just might improve.

Going away this weekend so I will have a better chance to play and check out fuel economy and power increases at different revs on different inclines.

Cheers

[Nera Donna]

Sounds extremely promising. I’ll be watching this thread with much anticipation to see how your trip goes. Good Luck and thanks for all the updates. [thumbsupbig]
Cheers:twobeers:
Craig

[Naks]

Just took it out for quick test run and the difference is unbelievable, the motor has been so freed up it is hard to believe that it is the same engine.

Make sure you monitor your EGTs though, it's very hard to not drive 'enthusiastically' and get EGTs over 650C :angel:

[cal415]

got any stockton beach visits planned soon? would love to see it in action with the mods :)

[Benny_IIA]

what sort of range of mapping is there for puma's?

Is there mild to wild like what is around for us td5 owners?

[Drover]

what sort of range of mapping is there for puma's?

Is there mild to wild like what is around for us td5 owners?


Hi Benny_11A,

Not sure about the range of maps, but I guess there is mild to wild.

When I emailed my standard map to Pete Bell, I also had to provided all relevant vehicle and use details and the map was chosen from those particulars.

Cheers

[portafilter]

Make sure you monitor your EGTs though, it's very hard to not drive 'enthusiastically' and get EGTs over 650C :angel:

Anyone know if the Puma has a EGT sensor built in. Maybe one that a scan gauge can read?

[TimNZ]

Anyone know if the Puma has a EGT sensor built in. Maybe one that a scan gauge can read?

Unfortunately no :(

[Drover]

Just got back from a shortened camping trip, due to rain.

Travelled 310k's, sat on or about 100km/h, towed a 2t caravan, used 48 litres, average of 15.5L/100km's.

This is the same consumption as prior to the up grade, BUT.....

The towing ability of the PUMA has increased 100%, on hills that I am normally changing down into fourth, now I am in 5th with power waiting on the right foot.

The extra NM's allow for smooth effortless take off's at traffic lights and up changes are made much quicker and require a lot less throttle opening.

The PUMA is now much easier and enjoyable to drive and requires a lot less effort.

I couldn't be happier with this performance upgrade and would recommend it to any body looking for a bit extra power and drivability.

https://www.aulro.com/afvb/images/imported/2011/06/951.jpg

Down side - Dealer still hastn't fixed water leaks :(

[alittlebitconcerned]

I have been told that programmes designed in Europe tend to blow smoke when used in Australia. Do you find this to be the case? Not much difference in the weather at the moment though so might be hard to tell.

[Drover]

I have been on the look out for black smoke, but haven't seen yet but, I try to use minimal throttle and do not go revving it out through the gears.

All of these computer up grades put more fuel/air mixture in the combustion process, so I think that they will all blow a little bit extra black smoke - some more than others !:eek:

[Naks]

I haven't noticed black smoke since the remap. Then again I put 2so in every tank, that helps the diesel to burn clean and removes any carbon deposits.

[5teve]

replacing the intercooler with a larger unit gets rid of this in many cases.. my td5 was a black smoker.. with a mild chip... and the new much larger intercooler has done away with all but a wisp of it...

Steve

[Hash]

Drover,

What sort of performance upgrades have you done?

[Drover]

Drover,

What sort of performance upgrades have you done?

Motor-

1 - Replaced factory cold air induction tubing with 3"ID marine rubber pipe.

2 - Bell Auto Services (BAS) Stage 2 Map.

3 - Alli-Sport intercooler.

4 - Terra Firma silicon turbo hoses.

5 - Terra Firma De-Cat pipe.

Drive Line -

1 - Ashcroft 4340 alloy steel 1/2 shafts to front and rear.

2 - Ascroft 4340 alloy steel CV joints.

3 - Ashcroft alloy steel drive flanges.

4 - Brit Part double cardon front prop shaft.

All very nice now......:D

[c.h.i.e.f]

Nice info drover :) is the water leak on the passenger side footwell? Mine leaks both sides onto feet but im used to it from other rovers! Personally I wouldn't buy another rover the last decent one made in my opinion was the county but anyhow:angel: im hessitant of doing any performance upgrades due to the fact the driveline hates what it has now :( 3rd rear diff and its even worse than the first 2 :o the window clips break all the time allowing the window to stay inside the door,hand brake leak,radio didn't play cd's (no biggie),panhard rod came loose ( also no biggie),clutch/some sort of ting noise at idle and that's about it oh and the window buttons smoking from behind haha all these problems are not that bad just average things (just coming onto 1yr old and just over 40k on clock) the main issue is the diff which land rover still refuse my request (they provide a sailsbury and pay $746 which is what the current diff is worth and I make up the rest to purchase the sailsbury) answer from LR australia was NO it will not then be genuine for that model pffft my answer "no it wont but it will be stronger and you won't see me again" (they also replied what is a sailsbury ?:eek:;)
Anyways that's my 2 bobs worth

Ps: would love to take all the luxuries of the puma and put in my county so then theres power and comfort :D

[PAT303]

c.h.i.e.f,I'll be in Cessnock in 9-10 weeks,I was going to get Triggs or English auto's at Tuggerah to fit an Ashcrofts HD CW/P set to mine while I was there.That might be a good option. Pat

[c.h.i.e.f]

Never thought of that :o is it going to be expensive ? Is yours still under warranty? Might see you buzzing around whilst your down ...

[PAT303]

Ashcrofts are well priced and it's still under warranty but I'll do it anyway.I've sold my black L322 to my bro in law at Kitchener so you'll see it driving around soon. Pat

[c.h.i.e.f]

Your bro live on the road that links kitchener to aberneathy and also owns a white county ad a vomit colour one? what's his name ? Im always at kitchener so may see you around

[roley18]

Hey Drover,

I've got a Allisport intercooler to fit to my 08 Puma and was wondering what is the trick to get the latch panel out ? The studs stop the latch panel from just sliding up, are they removed from one side from inside ?

Have you any tips on the best way to install the intercooler ? I looked at
the 2010.06_Defender_MY07_on_Workshop_Manual_Complete. pdf manual but it seems a bit different to mine.

Any help appreciated.

Dirk............

[Drover]

Hey Dirk,

Yeah I got the clues but it's not pretty😳

Tape a long handles screwdriver up, so you don't scratch the paint. Push it between the radiator support panel and mudguard, what ever side, and lever across until the support panel clears the the captured bolts. Lift support panel out.

Seem nasty, but after the best part on an hour, dismantling. Head lights and grill you find an way the achieves your goal.

You will surprised how easy and how far the guard will flex out ways.

Cheers

[roley18]

Thanks.

I ended up using a 'double nut' and removed all 4 studs, the rest was straight forward.

Now to research a re-map.

Dirk..........

[Iain_B]

Fitted my "Alive Tuning" 4x4 inter cooler and the Front Runner centre muffler replacement pipe this weekend.

During our recent trip, it was pretty hot up north - intake air temps above 50 deg C. We had some major headwind - 30-40kph and with the roof top temp etc, we could hold 100-110kph most of the time, but water temps would sometime get to around 112 Deg C - then the ECU would cut fuel for a few seconds until it cooled down below 110 deg - I found I had to watch the Scangauge and back off a bit if the temps started to climb. I hope the inter cooler and exhaust will helps a little bit - just need a few degrees of cooling. Dealer says the cooling system is fine - and says it was the extreme heat and heavy loading.

It took only about an hour to fit the inter cooler and exhaust - like Drover says, just lever the support plate out - flexes quite easily. I had to trim a bit of the plastic support low down on the radiator to make the inter cooler fit, but other than when removing one of the inter cooler hose clamps - it was fitted at an angle that made using a screw driver impossible, it all went in easily.

Exhaust was really easy, every thing lined up. I can't tell the difference between the exhaust sound without the centre muffler.

I hope this all helps - just 5-10 degrees will make the difference.

[chook73]

Fitted my "Alive Tuning" 4x4 inter cooler and the Front Runner centre muffler replacement pipe this weekend.

During our recent trip, it was pretty hot up north - intake air temps above 50 deg C. We had some major headwind - 30-40kph and with the roof top temp etc, we could hold 100-110kph most of the time, but water temps would sometime get to around 112 Deg C - then the ECU would cut fuel for a few seconds until it cooled down below 110 deg - I found I had to watch the Scangauge and back off a bit if the temps started to climb. I hope the inter cooler and exhaust will helps a little bit - just need a few degrees of cooling. Dealer says the cooling system is fine - and says it was the extreme heat and heavy loading.

It took only about an hour to fit the inter cooler and exhaust - like Drover says, just lever the support plate out - flexes quite easily. I had to trim a bit of the plastic support low down on the radiator to make the inter cooler fit, but other than when removing one of the inter cooler hose clamps - it was fitted at an angle that made using a screw driver impossible, it all went in easily.

Exhaust was really easy, every thing lined up. I can't tell the difference between the exhaust sound without the centre muffler.

I hope this all helps - just 5-10 degrees will make the difference.

I found that after I fitted my intercooler my water temp went up about 5 - 7 deg as it blocks more of the radiator. Its hard for me to tell however as I did add portals at the same time so it might just be pushing the bigger rubber and heavier rig thats doing it.

I was planning to contact Andrew from Alisport to see if his radiator will help reduce the temps.

[Drover]

Hey Iain,

Let me know what Andrew thinks, I could be interested in one his alloy radiators if it will keep things cooler.

Cheers
Grant

[chook73]

Hey Iain,

Let me know what Andrew thinks, I could be interested in one his alloy radiators if it will keep things cooler.

Cheers
Grant

Did you notice a rise in temps when you fitted your intercooler?

[Dockstrada]

Hey Iain,

Let me know what Andrew thinks, I could be interested in one his alloy radiators if it will keep things cooler.

Cheers
Grant

I would also be interested in an intercooler and a radiator as the OEM one has a small leak. So soon il be up for a newbe .

Maybe we could do a group buy and combine the shipping ?

[chook73]

I would also be interested in an intercooler and a radiator as the OEM one has a small leak. So soon il be up for a newbe .

Maybe we could do a group buy and combine the shipping ?

Only problem with a group buy will be that it will trigger the import duty & GST and negate any discount we would get. I will see if Andrew is willing to do a good rate if we all book within a few days or something like that.

[Dockstrada]

Only problem with a group buy will be that it will trigger the import duty & GST and negate any discount we would get. I will see if Andrew is willing to do a good rate if we all book within a few days or something like that.

Sounds good keep me posted .

[Iain_B]

I'll see how it goes, but an Alisport radiator was the next thing. Including shipping they are around $1000, so if a group buy reduces the price a fair amount, I'll probably be in as well.

Pete from Bell Autos suggested I try the inter cooler first - I'll have to wait until it heats up a bit here to see if it has helped.

[PAT303]

He also suggested the intercooler first for me also.There is a open fin and closed fin intercooler design,I wonder if the open fin type would work better than the closed fin type?. Pat

[Naks]

He also suggested the intercooler first for me also.There is a open fin and closed fin intercooler design,I wonder if the open fin type would work better than the closed fin type?. Pat

Depends on the application? IIRC one is more suited to off-road conditions, i.e., slow speeds, high loads, etc., while the other is more suited to high speeds.

not sure which applies to which though

[Drover]

Did you notice a rise in temps when you fitted your intercooler?


I've only got the in dash temp gage, so no real difference in the needle position.

That is not to say it actually went either way, up or down.

[PAT303]

My temps climb over 100 up here when I push it with the camper in tow,use common sense. Pat

[Iain_B]

I've only got the in dash temp gage, so no real difference in the needle position.

That is not to say it actually went either way, up or down.

Dash gauge is hopeless - it seems like it is programmed to read in the middle of the gauge anywhere from 70 degrees to 110 degrees - when it goes over 110 degrees, it swings up into the red very quickly, and the ECU shuts down.

I used the open fin design inter cooler - one thing I have noticed is that the boost pressure is lower going up the same hill at the same speed, which hopefully means less fuel. Temperature seems the same, but won't know until it gets really hot.

[TimNZ]

Here's a picture of an Allisport intercooler next to the standard TDCi intercooler, the Allisport would be twice the size of the standard one. (Sorry about the poor image quality!):

https://www.aulro.com/afvb/images/imported/2012/11/766.jpg

The larger intercooler doesn't seem to make a huge "seat of the pants" change in power, however the 110 seems to run a bit better during the hot days here in Perth.

I phoned Allisport about the fine fine/fast road vs corse fin/off road, they said I would have trouble picking the difference between the two when they were fitted to the car, and that some companies use the 2 types to "aid with marketing" more than anything else.

Cheers,

Tim

[PAT303]

Tim,have you also got the remap?. Pat

[Drover]

AliSport certainly do make a nice product...:BigThumb:

[Iain_B]

I want to know how you persuade your wife to let you bring in the dirty engine parts into the lounge :)

I went with the Alive tuning one basically because it is about $120 cheaper ( direct from England) and had good reports on the Defender2 site. Shipping was really fast, I ordered it on Thursday evening, and got the intercooler on Monday afternoon.

[TimNZ]

I want to know how you persuade your wife to let you bring in the dirty engine parts into the lounge :)



It's very simple, I don't have one :) (And the dog doesn't care what I do so long as it gets fed and walked :D )

Cheers,

Tim

PS The dishwasher is great for washing parts too :angel:

[Dockstrada]

Only problem with a group buy will be that it will trigger the import duty & GST and negate any discount we would get. I will see if Andrew is willing to do a good rate if we all book within a few days or something like that.


Hey chook any progress on this ? Im going to be needing the radiator asap.

thanks .

[chook73]

Had a couple of emails with Andrew last week but I got flat out with work and Andrew is hard to pin down. I am planning to give him a call tomorrow and see what deal he will do.


Sent from my iPhone using Thumbs

[chook73]

Been trying to call Andrew for the last couple of nights with no luck, I will try again tonight.

[chook73]

Had a good chat to Andrew tonight and he is up for giving us a group buy discount. He is going to put something together and send me an email in the next couple of days.

He also is able to package it up to freight as one if we can get it to a central place (I think so far most of us are around Sydney) and he will include the individual invoices so we avoid the GST/Import Duty.

Now remember that everything from Allisport is handmade to order so it does take time. My intercooler took 8 weeks from placing the order until it arrived.

I will let you know when I receive something from him.

[Dockstrada]

Had a good chat to Andrew tonight and he is up for giving us a group buy discount. He is going to put something together and send me an email in the next couple of days.

He also is able to package it up to freight as one if we can get it to a central place (I think so far most of us are around Sydney) and he will include the individual invoices so we avoid the GST/Import Duty.

Now remember that everything from Allisport is handmade to order so it does take time. My intercooler took 8 weeks from placing the order until it arrived.

I will let you know when I receive something from him.

Ok sounds great , thanks for the effort you have made to get this to work.
I have a wearhouse in Matraville and am available all day for deliveries.

I can also arrange for goods to be on shipped with fastway courier for those that are out of Syd .

[Iain_B]

I'm interested if the price is right - how will the individual invoice thing work for a single package? Any idea of freight cost to Brisbane?

[chook73]

What I discussed with Andrew is that he will give a window of opportunity for people to place an order say two weeks where he will offer a discount to AULRO members. AULRO members will need to order with him directly.

On ordering you will need to supply a payment method and then once the orders are complete he will package them all up and send them in one shipment to Australia.

Andrew only bills once the order is complete and ready to ship so then I guess he will just bill everybody who placed an order in the given timeframe a proportion of the freight but thats the sort of detail he wanted to work out.

Freight from Sydney to Brisbane will depend on what you order and how you send it (i.e. road or air) but I wouldn't imagine road would be too much.

I am not sure how much we will save on freight to be honest as its normally on volume and weight which I would not have thought will not change substantially by increasing the volume and weight. I would just be happy with a group buy discount.

[Dockstrada]

I'm interested if the price is right - how will the individual invoice thing work for a single package? Any idea of freight cost to Brisbane?

For a radiator size box up to 25kg to Bris it won't be more than $40 or $50 .

From Matraville 2036 .

[newhue]

chook, has Andrew indicated on how much of his range he is going to offer.
a map and intercooler could be of interest.

In saying this however, Alisport intercooler is around $1000, brit part $500 and the pic looks very similar. I'm not saying Alisport are over priced as I'm sure they are very good quality, but when you guys have said it's hard to tell the difference in performance, $500 can go to a map or hoses I'm thinking.

[dullbird]

Ok if this is a group buy please take it to the group buy section in the markets and discuss it there.....I will leave the information for the next day or so and then I will go through and delete references and offers to take up the group buy out of this thread...


This is not the place to do it guys you have been given an area to do this sort of stuff.

[chook73]

Just to update this thread (the nearly a group buy but not a group buy yet thread) :wasntme:

I havent been able to get a response out of Andrew about a group buy. Unfortunately at this time of year I dont have a whole heap of time to follow all of this up so I will probably just send him an order for what I need as I need it soon.

Happy for someone else to follow up with him, if you would like to PM me and I can email you over correspondence to date.

[Dockstrada]

Anyone looked at PWR radiators in QLD ?
Just had a price back for $860 but il wait until i hear fom Alisport .

[chook73]

Allisport are about $760 before freight. I would be interested in seeing how they stack up against each other.


Sent from my iPhone using Thumbs

[Naks]

I just spent five hours fitting the intercooler with the help of a friend, after I was advised by some people that it was a 2-hour job

My advice: get it fitted by an indie.

On the plus side, I took a drive to Stellenbosch and back and now instead of looking for a 7th gear, it feels like the landy needs an 8th gear as well! :D

[Dockstrada]

I have just bought a 55mm radiator from PWR, it will be installed later this month together with an intercooler from Bruce Davis who just remapped my ECU , I removed an existing DTUK tuner which was great unit and is for sale in the Marketplace section. The DTUK produces loads of power but doesn’t cancel out the EGR like the ECU reflash from Bruce.

As for the reflash, it doesn’t go much better than the DTUK just a little smother , but the EGR cancel out was what I wanted and was suggested for the new intercooler combination.

I’m told by Bruce that once the intercooled is fitted it’s going to be at another level of performance. But the higher performance will definitely produce more heat which is the reason he recommends a bigger and better cooling system for his top end performance ECU upgrades .

Let’s wait and see how mine turns out .

[Naks]

I’m told by Bruce that once the intercooled is fitted it’s going to be at another level of performance. But the higher performance will definitely produce more heat which is the reason he recommends a bigger and better cooling system for his top end performance ECU upgrades .


I'm noticing lower EGTs with the Allisport intercooler. The BAS remap also produces lower EGTs than the standard map.

[n plus one]

I'm noticing lower EGTs with the Allisport intercooler. The BAS remap also produces lower EGTs than the standard map.

That's interesting - I just did the BAS remap and will be fitting an Allisport in the next week or so.

What setup do you have to monitor EGT? I was thinking I should look into this as part of my upgrades.

[MD5]

...The BAS remap also produces lower EGTs than the standard map.

Why the BAS Remap lower the EGTs ?

[Naks]

Why the BAS Remap lower the EGTs ?

Probably because the remap makes the engine operate more efficiently by regulating the diesel-air mix better. This results in better combustion and lower EGTs

but I could be wrong. best to ask an expert ;)

[isuzurover]

Probably because the remap makes the engine operate more efficiently by regulating the diesel-air mix better. This results in better combustion and lower EGTs

but I could be wrong. best to ask an expert ;)

Sorry, incorrect. There is no way that the engine would pass emissions testing unless the engine was operating efficiently.

Increasing boost lowers EGTs. It is likely that is the answer.

[Naks]

Sorry, incorrect. There is no way that the engine would pass emissions testing unless the engine was operating efficiently.

Increasing boost lowers EGTs. It is likely that is the answer.




Would de-tuning the engine also not result in lower emissions?

But you are probably right wrt the boost.

[lackuwaxa]

Would de-tuning the engine also not result in lower emissions?

But you are probably right wrt the boost.
increasing boost increases the amount of air .. more air = more diesel that can combust during the compression stroke .. diesels typically only run somewhere between 70-85% percent efficient .. the less diesel that is coming outta your engine and burning up in the exhaust pipe the cooler the EGT's will be .. typical example is with a diesel gas system .. diesel gas uses a small amount of LPG as a catalyst to burn more of the diesel on the compression stroke resulting in somewhere between 25-45% increase in power, but also lowers egts as it is around the 97-99% efficient. Its one of the reasons why when you blow an intercooler/turbo hose you feel a significant loss of power, you also see massive clouds of black smoke (unburnt fuel) and your egts climb through the roof ..

DPF (diesel Particulate Filters) and EGR Systems are some of the ways that manufacturers overcome the emission systems side of the equation ..

Wade

[Bush65]

Wade,
You might want to re-read what you have written for typos!

And some of your statements appear clouded by marketing blurb.

[frantic]

If the flash tune lowers exhaust temp by burning a higher percentage of the fuel it would be common sense that the engine itself would be hotter as more of the fuel is being burnt inside the block rather than in the exhaust or released unburnt out the rear. IMHO

One thing I would like to see is a power comparison between a flashed diesel and a LPG diesel as well as egt.

[lackuwaxa]

Wade,
You might want to re-read what you have written for typos!

And some of your statements appear clouded by marketing blurb.
Sorry John,

I wrote that on no sleep and looking back I cant see the typo's you refer too, other than the odd spelling error, that is my understanding from the work I have done to my own vehicle (not a defender :( ) I am happy to have my understanding clarified ..

Frantic, EGT's are typically measured in the exhaust system, I think my bung was welded onto the dump pipe, i'm fairly sure that burning the fuel in the engine doesn't have as much of an issue on heat as it does in the exhaust .. hence why the cooling system runs at upto @120c and the EGT's can safely get upto 700C before you start to worry ..

but again i am happy to be corrected .. I'm an auto elec, not a diesel mechanic ..

Wade

[isuzurover]

....diesel gas uses a small amount of LPG as a catalyst to burn more of the diesel ...

The first part was OK. The bit above is incorrect and marketing BS. LPG is not a catalyst. The change in fuel mix changes the flame speed, etc...

[lackuwaxa]

The first part was OK. The bit above is incorrect and marketing BS. LPG is not a catalyst. The change in fuel mix changes the flame speed, etc...
Ahh Thanks, you are right I did prob read that in the propaganda that came with the LPG injection kit .. I guess I never really questioned it.

Cheers

Wade