Camila gets the TWEEK... Low EGT's and more power than a M3

**sclarke** · 16th April 2006, 04:10 PM

Today i finished the long drawn project of the power Tweek in Camila

Last week i fitted the EGT and Boost gauge
This week i fitted the new Temp gauge

Today i read and read and read on how to get the most of your 200tdi
Then i did it.

I used the Thermoguard Guide on modifying the injector pump. They like to start with the Diaphram and to set it at its maximum then work back to the orig setting.

I cracked the top of the pump open to find it full of water..... Dunking Camila last year sure has its reminders....
I cleaned the water out and removed the diaphram and then set it to the maximum position and took her for a blast to the local hill.
Not much smoke.... i was expecting heaps. So i left it there.

I then wound the boost on the turbo up to 16psi, this was recommended by a local LR guru who has done many a LR tweek.

Then i adjusted the star gear CW 180 deg

and more testing was done....

same amount of smoke from 2500-max rpm

Then came the instant off the line tweek... the Torx screw... I 1st set it at 1.5 turns CW.
The initial smoke when you 1st booted it was not bad, but i needed a big hill to test it out and the EGT.

Mt Dandenong.
I climbed the hill from FTG towards Tremont and every time i started off i kept catching the traffic. So up and down and up and Down......

I then started to test the pull factor.... i took off and got into 4th at about 35-40kmh and while climbing punched it to see if i could load it up to get the EGT up.... Nope it just pulled away...

I then started to have some fun and started chasing down the cars. I managed to have a run up the hill with a M3 and he must have been asleep as i kept catching him.....

At no stage did the EGT get above 550 deg C.

So the result is this...
Low down grunt is up about 40% in my view
Top end about 10-20%
Smoke is very little at any stage except off the line.

The only other improvement i can see is the make the piston slide more along its tapered length and adjust the power screw that is tamper locked.

Final note.
My Pump is the not the orig one. It was replaced back in 2003 and has the service sticker on it from the Diesel mob.

I dont need more HP. I'm very happy with it as it stands today.
i will keep and eye on the EGT and as the weather gets warmer and as i am doing a alpine trip this weekend i expect things to change.

**camel_landy** · 16th April 2006, 05:21 PM

Hi Steve,

So, it sounds like you've just been adjusting the way the fuel is delivered rather than increasing it at the moment. That 'tamper proof' screw is the one that does all the damage...

When you start turning that, that's when the EGT will start to climb & the power increased. You might find that when you slacken off the locknut, you can just about turn it enough, for what you want, without needing to remove the tamperproof bit. 8)

Couple of things:

1 - Increasing the turbo boost... Did you change the 200TDi spring for a 300?
2 - When you cleaned out the water, did you re-grease the shaft?

Mark.

**rick130** · 16th April 2006, 05:42 PM

EGT's can easily go over the top adjusting what Steves played with. The boost compensator adjustment (aneroid) can easily tip you into 700*C territory. I had to back mine off around 40* on the diaphram adjustment from maximum to keep EGT's sane right at the very end of my test hill, and it will still exceed 720* at 110km/h, 4th gear after climbing 200m for about 2km on a hot day.

sheff · 16th April 2006, 06:02 PM

I assume that when you say the top of the pump was full of water you mean the top of the diaphragm?
How did the water get there? It is closed to the pipe which comes from the turbo? There is a moisture drain under the diaphragm.
How did you incease the turbo boost, I would like to do that on my 300tdi?
sheff

**rick130** · 16th April 2006, 06:15 PM

<div class='quotetop'>QUOTE</div><div class='quotemain'>How did you incease the turbo boost, I would like to do that on my 300tdi? [/b][/quote]

mine went up 1psi just by increasing the fueling, (16-16.5psi) and is now rock solid instead of wavering around from 15.5 back to 14.5 all the time. The pump is set pretty much on the conservative/lean side from the factory.

**rick130** · 16th April 2006, 06:17 PM

<div class='quotetop'>QUOTE</div><div class='quotemain'>I assume that when you say the top of the pump was full of water you mean the top of the diaphragm? [/b][/quote]

probably the stop screw/torx key adjustment pot. The pressed steel cap isn't water tight.

**camel_landy** · 16th April 2006, 11:17 PM

Originally posted by sheff
I assume that when you say the top of the pump was full of water you mean the top of the diaphragm?
How did the water get there? It is closed to the pipe which comes from the turbo? There is a moisture drain under the diaphragm.
How did you incease the turbo boost, I would like to do that on my 300tdi?
sheff

The water usually comes through from the turbo... Not surprising when you look at what Steve went through!

Increase the boost on a 300TDi? I know it's worth increasing the boost on the 200TDi as that runs at 0.7 bar but most people feel that the 1 bar that the 300TDi runs at is usually enough.

FWIW... If you're not happy with the power from the 2.5D, you might as well get a V8. :wink:

M

**sclarke** · 17th April 2006, 09:29 AM

I'm not going to tweek it anymore as the smoke level is more than MOT would allow or our EPA, but it goes alot better, so i'm happy.... and it goes fast as well.....

Water was on top of the Diapham and in the pump.... :roll:

I lubed the pin and cleaned all the cream out.

How did it get in???
As mark said, Via the Turbo... it did get a good dunking...

**rick130** · 17th April 2006, 06:22 PM

<div class='quotetop'>QUOTE</div><div class='quotemain'>How did it get in???
As mark said, Via the Turbo... it did get a good dunking...
[/b][/quote]

8O 8O 8O 8O 8O 8O

**sclarke** · 17th April 2006, 08:25 PM

You did ask....

ops:

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