Diesel engine tuning....

freerider

Honorary ///Member
Simply optimizing the management of the engine to get the engine to run much better.

Diesels get a hell of a lot more power with chip tuning.
 

danielscvhamann

New member
As Don already said, Diesels are very nice to do, the engine gets optimized with that comes a big power gain and also better fuel consumption...

But both of your links are power boxes, I would not recommend them, very basic way of making more power, also main thing, a constant high pressure on the rail system which is not good at all for these cars as they are very sensitive these days on that...
 

danielscvhamann

New member
Hi Yes sorry we having some problems with our www.cartuning.co.za site and that's unfortunately where all the technical infos about the Chip Tuning are.... Should be sorted very soon.

I can otherwise gladly send you some infos if you like...
 

msm

Well-known member
You also need to take the gearboxes into consideration, especially when chipping the 3.0D's. Getting more power and torque out of the engine is easy - however, the gearboxes are usually not meant to handle it. Just my R0.02 ...
 

danielscvhamann

New member
Yes that's right! Good point there... When you use a power box it's always the same. But if we do a remap it is according the gear box since not all of them can take the same amount of Torque etc.
 

joroGVG

///Member
msm,
yes, good point. I am thinking about my 320d, shall I be worried about the gear box.

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Daniel,
whats very appealing to me with the power boxes is that I can remove them for 5-10 min from the car. My BMW is still with a motor plan. Remap can be easily detected when car is for service, correct ?
What do you mean by "When you use a power box it's always the same"
 

danielscvhamann

New member
Hi

First, with a good remap you don't have to worry regarding the gear box never had a single issue with it.

Further the Tuning is very hard to detect but of course if they really want they can, again never had an issue with it and around 99% of all the cars I do are under motor plan. Also if they really looking for it you can also determine that there was a box connected... Since the ECU logs down data and then you can actually see that certain values were exceeded.

What I ment was that the tuning box is not specifically for your car, it's just a standard device which does the same pretty much in every car it goes into. On the other hand our remap is custom done for your car.

A tuning box is a device that is added to your car with the purpose of intercepting the transmissions from your ECU chip to the sensors in your engine and fuels system. Some tuning boxes work by fooling your car's ECU chip with false data so that the chip thinks your engine is doing something different, making the ECU add more fuel. Other tuning boxes work by altering the data after it has left the ECU chip so you engine and fuel system behave different because they are receiving altered instructions.

Whichever type of tuning box you use the results are the same, they both work by altering the amount of fuel given to the engine. Also, because the tuning box if either fooling the ECU chip or the engine, there is a constant battle between the tuning box and your car's chip - where your ECU chip attempts to compensate for the faulty information. This is especially true of the latest Euro IV engines with very tight emission controls. The end result is often inconsistent performance, and sometimes no improvement in performance at all.


A remap on the other hand actually improves the engine and emissions control. A "remap" is simply a rewrite of the software in the engine computer. Unlike the tuning box which only alters the amount of fuel, the ECU remap alters the turbo boost pressure, fuel injector duration, fuel timing, fuel pressure, and many other maps, all of which can be optimised to give substantial increases in power and torque. With new engines, the ECU remap is the only way to improve performance because the ECU is too sensitive for a tuning box to successfully alter the behaviour of the fuel system without the ECU compensating for it.
 

NoddyBadge

///Member
The information I've received from Daniel iirc, is that the remapping is not really detectable.
I'm also considering having it done with my car, but my run in with the cops is going to have to come first :facepalm: :cursin:
 

joroGVG

///Member
I just found out that the ACS tuning device costs more than R32000. I am wondering whats so different about it in comparison with the other boxes or remap methods. Any ideas ?
 

freerider

Honorary ///Member
Specific outputs, look at the Honda Fireblade for example, all models sold in Japan are limited quite drastically as far as power is concerned.
 

liv

New member
freerider said:
Specific outputs, look at the Honda Fireblade for example, all models sold in Japan are limited quite drastically as far as power is concerned.

Could that possibly be cos in JP, they have a limit on HP, similar to the German limit of 250km/h?

Re chiptuning - personally I wouldn't go for those tuning boxes, or one of the international maps. I had looked into a few local brands, specifically FRC and Dimsport. The reason why I prefer these brands, is because the map is done locally, according to climate conditions for RSA (in my case - the reef), and you have the support of the tuner, and you can specify exactly what you want, and you can get a custom map based on that.

Software upgrades ARE DETECTABLE!!! Thing is - most of the time, dealers dont look for it, but once you get major issues with the car, they start interrogating the ECU, and there's many ways to pick up that it has been remapped. At the end of the day - its a chance you take.

The reason why manufacturers don't chip their vehicles, is that they spend millions of dollars on R&D. When components for the vehicle are produced, they are done so in large quantities, the performance of which can vary. so what they do is, they produce the maps to work in a safe and efficient manner across the range. Thus - if 10% of cars have dud turbo's for instance, they won't have to worry about having to replace them in a campaign/under warranty, as it is never pushed to its efficiency limit to allow a greater chance for failure.

Where a software remap will help is, a custom map can safely up the power within its efficiency ranges for your specific vehicle, based on the hardware you have in there, depending on how you want power delivery to be. It works, but still its a chance you take. Manufacturers don't look at it in this light, and would do anything to void a warranty so they dont have to fork out for damages. Key would be to get a service advisor that can turn a blind eye when the car is under motorplan ;-)

So - thats my 5 thebe.
 

George Smooth

///Member
The main reason there is potential in chiptuning are two: The first is emissions, nearly most diesel cars tuned further will emit more smoke. The second is marketing, each car makes the power it does as the manufacturer see's fit so it does not overstep the next model or be to close to it. A good example with BMW is the 335 and M3. You can easily and safely get the 335 to 260kw without risking the turbos longevity. They do not do it because it is too close to the M3 then and when you look at value for money ppl wont buy the M3. Another prime example was the 323 and the 328. The 323 was very detuned to make keep a constant gap between the 320-323-328.
 

Sherwin@xcede

BMWFanatics Advertiser
Official Advertiser
The most gains with the modern diesels are in the mid. Up top it's hard to gain significantly without doing hardware, especially at altitude.
 
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