Power Upgrade

**Stepho_62** · 1st May 2007, 06:26 PM

JC and I have been "fiddling" with the little Bosch Injector pump

I simply can't believe the difference.

Its fully a gear better off without any load on most of the stuff I do around town, It will comfortably pull over the arch of the Tasman Bridge in 5th now as opposed to grudgingly AND with the camper on it is half a gear better off.

Highest exhaust temp so far is 548 degrees c so it will be interesting to see what its like on the way to QLD

Damn this thing just gets better n better.

**justinc** · 1st May 2007, 08:27 PM

What the???

Did you drive it around until 7pm?? I know you wanted to test it out but lets see, we finished at 11am, so that makes it an 8 hour test drive!!! I love my Rangie too, but this takes it to new heights....

Glad it's going good, here's wishing you two a great trip and an excellent time north of the 26th parrallel.
We'll be up there to invade your privacy at some stage!

Justin and family

**DiscoDan** · 1st May 2007, 09:27 PM

Is there a link or how too on this?

**Stepho_62** · 2nd May 2007, 06:04 AM

Dan

This type of thing is JC's bread n butter and I don't have a photographic memory. The Bosch pump is quite configurable and so there is a bit to it. Whilst I understand exactly what JC did I'd not be keen to regurgatate it ad nauseum. Perhaps you cold PM him.

JC

<<<<< Thats the grin I have. It still hasn't faded.

Now if I could only get a plusho Rangie Body, A twin turbo 3.9, 5 Speed, lokers, etc etc etc

Cheers,

**rick130** · 2nd May 2007, 09:16 AM

Originally Posted by DiscoDan

Is there a link or how too on this?

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.

**PhilipA** · 2nd May 2007, 10:11 AM

Just remember you diesel guys that you are gross polluters when you do this.
I don't know how this accords with "treading lightly"
Regards Philip A

**Stepho_62** · 2nd May 2007, 12:37 PM

Originally Posted by PhilipA

Just remember you diesel guys that you are gross polluters when you do this.
I don't know how this accords with "treading lightly"
Regards Philip A

Mate there is no discernable difference in discharge from the exhaust. So I suspect there is only a marginal increase in particulates.

**Pavo** · 2nd May 2007, 01:23 PM

"Just remember you diesel guys that you are gross polluters when you do this."

In what way? Through extra fuel usage? Particulates? How much more do 'tweaked' 300tdi's pollute than 'stock'?

I've got a 'stock' 300tdi, but I'm curious how much worse it can possibly be on the environment to 'tweak' the fuel pump.

This is a genuine question - in the same way I wouldn't advocate to anyone to remove a catalytic convertor off a petrol car.

Pete

mcrover · 2nd May 2007, 01:47 PM

Originally Posted by Pavo

"Just remember you diesel guys that you are gross polluters when you do this."

In what way? Through extra fuel usage? Particulates? How much more do 'tweaked' 300tdi's pollute than 'stock'?

I've got a 'stock' 300tdi, but I'm curious how much worse it can possibly be on the environment to 'tweak' the fuel pump.

This is a genuine question - in the same way I wouldn't advocate to anyone to remove a catalytic convertor off a petrol car.

Pete

It would depend on how far you go, if you go for a meaningful power increase but keep well within the perameters of EGT and emisions then It is not neglegable the difference in pollution.

On the other hand the petrol guys that block off EGR and hollow out Cats as well as fuel them up to much with after market ECU's or jet them rich for "More Grunt" well to you guys, your the polluters not us.

Missan Pootrol 4.2 fueled up to blow thick black smoke on acceleration is normal in the bush these days and yes that is pollution but still is not as bad as the crap that comes out of a standard petrol engine let alone the normal go hard mods that most people do.

LPG is the cleanest and if you want that from a diesel put on LPG fumigation "Apparently" it lowers emisions and increases power.

**PhilipA** · 2nd May 2007, 03:48 PM

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

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