Thread: Pro and Cons of Chipping D3 diesel

I am putting a DP Chip on my D3 2.7 this weekend. I read a lot of comments on why it should never be done, mostly by those who have never used one. I ran one on a BMW E53 X5 for 4 years without any issues. Increased power and torque beautifully and reduced fuel consumption. Read the DP Chip info re the warranties etc.
I will let the forum know how it runs and if there are any issues down the track.

Originally Posted by Kennyboydixon

I am putting a DP Chip on my D3 2.7 this weekend. I read a lot of comments on why it should never be done, mostly by those who have never used one. I ran one on a BMW E53 X5 for 4 years without any issues. Increased power and torque beautifully and reduced fuel consumption. Read the DP Chip info re the warranties etc.
I will let the forum know how it runs and if there are any issues down the track.

Just because people haven't run them is no grounds for dismissing the reasoning.
I won't run one - ever... Because I know how they work, what they are doing to achieve what they get, and what impact it has on the engine.

Did you tow much with the X5? Much hot slogging offroad?
How many km did you put on it? What was the baseline tune and EGTs pre-chip?
What were they after?

These boxes ramp rail pressure and toss in fuel and some fiddle a bit of timing - that's it...

They don't maintain engine safety protocols because they alter the signals - so even in a dangerous condition the computer thinks all is good...

As for warranty - the claims are totally false and misleading... If you remove it before warranty claims you may get away with it. But leave it in and try claiming an engine or power train warranty that could be attributed to changed engine performance and you'll soon be floundering!

The "won't void manufacturers warranty" claim is by deception, not approval.

A dealer does not have an obligation to warrant anything operated outside of design tolerances.

Good luck...

Oh, and how is it a $1400 (retail) chip stacked up against a customised $900 tune which alters timing, fuel etc correctly is the better choice?

Thanks Tombie. Saved me a lot of typing.

Cheers,
Jon

BAS remap is on the list of things for my D3 in the future, though my only aim will be to try and remove the horrid turbo lag, if at all possible, not after much esle, seems to have more than enough Gusto for me (though i am coming from a Defender which moved at a much more leisurely pace) though am also interested in if the Larger inter cooler and such mentioned above should be done at the same time?

Leroy.

Why do car makers set the ecu for suboptimal performance?

Originally Posted by rar110

Why do car makers set the ecu for suboptimal performance?

longevity.

Some reason our F/A-18F have derated GE F414 Turbofan engines.

"...engine provided a 15% thrust increase or longer life without the thrust increase"

I'd like some better fuel economy and less turbolag but won't put the engine at risk to do so. I have a 2007 D3 with 192k so longevity and reliability are my drivers now.

A smoothing tune will do that, a power tune will always have trade offs in heat and wear.

Originally Posted by Tombie

A smoothing tune will do that, a power tune will always have trade offs in heat and wear.

Does a smoothing tune have an impact on reliability or other trade offs?