Thread: Power Upgrade

Later 300s , which also had a different injection system also had EGR. although I am no expert on all the nuances, I think all autos had it.
Regards Philip A

Originally Posted by PhilipA

Later 300s , which also had a different injection system also had EGR. although I am no expert on all the nuances, I think all autos had it.
Regards Philip A

If your no expert why comment a little knowledge can be a dangerous thing

Originally Posted by rick130

the best instructions ever written on tweaking the Bosch pump in Tdi's is on this site here
http://www.aulro.com/afvb/attachment...6&d=1152411367
it's a PDF file written by Ian Petersen of Thermoguard EGT readout fame. Ian makes probably the best electronic readouts for exhaust gas temp you can get.

I was in Launceston about a fortnight ago and met Ian's wife fueling up the Disco ready to head to Devonport to get on the boat. Throughly nice lady too.

Cheers,

Originally Posted by rangieman

If your no expert why comment a little knowledge is a dangerous thing

Originally Posted by PhilipA

One of the major reasons that diesels such as the 200-300 series have limited power is to meet the original pollution levels, the other is longevity.

Pollution is one reason why the 300 series was superseded and now why the TD5 is superseded and why few diesels can be sold in the USA.

Particulates are a BIG problem and now known to be highly carcinigenic.
To increase particulates in any way is really irresponsible, seeing what we now know.

Any increase in fuelling will increase particulates. Diesels always go better with excess fuel, and whether you can see the bits or not is immaterial.

The 300 also has EGR which many disconnect. This only affects Nox, which these days is not seen as the worst gas. Ditto for petrol.

What petrol owners do is really immaterial.
"Oh he killed his wife so it's OK for me to"

My posting is just to give a reality check on those people who increase the fuelling on their cars. Nothing is free. Maybe it costs you nothing but it sure costs society.

LPG fumigation on the other hand appears to be a great thing, and apparently can give additional power without additional pollution or maybe less, as it replaces a percentage of the diesel burnt. So go for it.

Regards Philip A

Where do you get your info, my disco is 97 300tdi auto and has no EGR and never has had it is completely standard as is the settings on the pump.

I did have the pump reset to standard settings though when the timing belt was done last time as I didnt want any reliability problems with the trips we do but now I wish I had spent the money fueling it up.

Last time I heard, the Yanks are the kings of big fuely diesels in chevs, fords and dodge pickups which are bigger poluters than anything sold in Oz, Im pretty sure the reason behind them not selling many small Diesels in the states is more that they are small and under powered in comparison to what the market wants.

Thanks Philip A.

That is the kind of info I was after.

Pete

For example
Posted: Thu May 04, 2006 7:10 pm Post subject: Egr blanking plate results Finally Fitted my egr blanking plate today "took long enough been in garage 2 months and took 3 mins to fit"
was even suprised that the funny coloured lumps of manky metal even undid with a tiny squirt of wd40 woo hoo.
Even better as i wont find out if theres any change untill friday nite when i drive it down for some surgery on the clutch.

just wondered if anyone had noticed any significant change to the car with the plate fitted?
______________________________________________
1998 300 Tdi aviemore Disco - R99 MUD

Thread is athttp://forums.mud-club.com/viewtopic.php't=23068&start=0

Regards Philip A

With regard to the USA, a quick search of Google using words like diesel pollution USA, will give you in depth knowledge of the current situation in the USA.
As an example VW were forced to discontinue sale of the Toureg V10 for several months in late 2006 while they updated their technology to meet new regs for Jan 2007.
It is simply untrue that the big USA pickup diesels pollute more than other diesels. Maybe in the past but not now.
Regards Philip A

I agree, Ians website and his tuning data are invaluable references, he has put in a lot of effort to come up with the info, and kept thermocouple manufacturers in business! His D1 is hooked up with about 20 of them reading temp differentials from inlet and outlet intercooler etc etc etc. He is quite a well read fellow concerning thermodynamics etc and has put a lot of theory into practice to come up with all of it.

I bought a few kits from him a few years back, and while booking in to the Cloncurry van park one evening who should come over on an ATV to show us to a site? Ian and Annette were park sitting for some friends! We had an excellent 2 days there, great people.

As for the emissions from these 300 Tdi's, yes there usually is a slight particulate increase, but running higher/ earlier boost will on the whole aid in a more efficient burn of the fuel per cycle, due to higher temps and pressures. This is evident in some of our fuel consumption tests done by owners themselves, about 95% end up using the same if not less fuel for a given trip/ distance. This is obviously not accurate for those that use the extra power on tap for evil intent ( Speeding, smoking out errant cyclists, drag racing auto discos etc etc) and I am only quoting anecdotal customer reports on fuel useage.

My 460,000km old Isuzu 4BD1 turbo will emit LESS visible particulate matter than a Tdi under full noise, and IT has NEVER had the injectors serviced. ( I know, I know...Cobblers shoes and all that, but I AM really busy!!!) It is at the bottom of the emissions regulated pile as an ex commercial vehicle engine therefore quite unfriendly for the environment. I still maintain that with the amount of boost pressure and huge intercooling I am running has a lot to do with its current efficiency, therefore less 'pollution' than a 2.4 hilux struggling up the hill with the fuel rack on the stops, belching smoke and partially burnt fuel, soot and NoX's.

And, The EGR 300Tdi PhillipA is talking about is the EDC ( Electronic Diesel Control) this was never released into australia, and was developed for europe, the US and Japan. It utilised fly by wire fuel pump, an airflow meter and EGR valve, combined with a wastegate duty controller etc. This system is very close to the freelander 2litre diesel from 1998 to the intro of the Td4.

AFAIK in england these EDC engines STILL have trouble with meeting emission standards, especially if the miriad of sensors and the Cat converter for example are faulty.

Thank goodness we don't have to put up with that engine here.

Check out and follow Ian Petersens advice with diesel tuning, he advocates sensible upgrading, keeping fuelling to a level where EGT's are moderate and make sure you don't cut corners and do it without a pyrometer as you very easily could be doing damage to your engine, turbocharger and even the poor little spotted pardelote nesting peacefully in the roadside embankment as you rocket past AT THE SPEEDLIMIT.

JC