Chip Tuning

Modern engine computers (ECU's) take over many of the controls of all aspects of engine management from timing to fuelling and more.

This actually means you get better power, a cleaner burn and more reliable engine but it does not mean the end of tuning.

Chip tuning is a term used very loosly to describe any process of remapping the cars engine.

The term probably stems from the early days were chips could not easily be reflashed and updated.

The only option in these cases was to replace the chip. Often these would need to be soldered and could be quite fiddly and, due to the delicate nature of chips, prone to failure.

EPROMS which were erasable and programmable chips could be removed reflashed and reinserted into the car.

In recent times we have seen cars equipped with on board diagnostic ports that allow a fresh map to be uploaded.

Is chip tuning something you can easily do yourself? Not really, you need to have detailed knowledge of the engine and ideally a full set of diagnostic equipment on a rolling road to allow you to make "live" adjustments to the mapping. There is certainly a lot more to it than just changing a few numbers and getting a big power gain.

With DIY chip tuning you also run the risk of a bad flash where the computer cannot be recovered and without a restoration image you will need to visit the main dealer or worse still buy a new computer.

The best form of chip tuning is where a custom map can be inserted that takes into account your cars strengths and weaknesses and any other modifications that you have had done. There are still a few companies out there offering replacement chips set to a more sporty setting.

This is not to be confused with piggy back chips or plug in boxes. These are only useful in cases where a reflash or replacement chip is not available and it would still be better to buy a whole aftermarket ECU and use this.

We are often asked if chip tuning works on all engines. Generally speaking any car will see a benefit but the larger gains are from turbocharged applications. In a NASP (Naturally Aspirated) engine power gains are around 10-20%, but in a turbo engine the power gains are typically around 40% for a petrol and 30% for a turbo diesel.

Even a car getting a relatively low power gain from a remap will actually be more lively to drive. The peak power gain figure is only a very small part of the equation. The engines response under acceleration and its torque curve are the primary reasons for getting into chip tuning.

The downsides of chip tuning are the need for more regular car maintenance and servicing. You are effectively reducing the safe margin of error the makers build in. This compensates for low quality fuel, or the wear and tear associated with longer service intervals.

Custom Gauge

Installing custom made gauges like these on your car is easy! Not only will it give your car a unique look, you can change them whenever you like and create as many template variations as you wish.

The only things needed are pictures, background images, paper, and Adobe Photoshop.
At the same time installing the new templates you could also change the back lighting for your factory gauges. It is fairly simple to do and gives your vehicle a unique look!

Installation Instructions:

Step 1 - Open your dash and expose the gauges.

Step 2 - Once you've completed this step, scan them at a minimum of 300dpi in a Photoshop compatible program.

Step 3 - You will need to separate the image and have the background (figure 1) on one layer and the numbers and "dummy lights" on the other (figure 2). You can customize the second layer to your specifications, eg. font, size, angles, outlines....etc. Both layers need to be transparent.

Figure 1

Figure 2

Step 4 - The background layer can be replaced with whatever image fancies you. I've chosen a sunset. Create a new layer and paste the desired image. Select "transform" to stretch the image to full size. Ctrl + left-click on the background layer to automatically "lasso" the outline of the gauges. (Figure 3, layer 18). Once you've selected the outline click Ctrl + Shift + I to reverse the selection then Crtl + X to cut. (Figure 4)
Figure 3
Figure 4

Step 5 - To make a copy of the "dummy" lights and numbers layer, click on the layer from the "layers window" then press on ALT + L and choose "duplicate layer". Move the copied layer between the black and pictured gauges. (Figure 5)
Figure 5

Step 6 - Merge the first two layers.

Step 7 - To select the shine-through colour at night, click your "dummy lights" in the layer window and Ctrl + Left click to select. On the black gauges layer, use the "bucket" to fill in desired colour to shine through. Trash the copy layer. (Figure 6)

Figure 6

Step 8 - Make a copy of each layer.

Step 9 - Make the image fit on a standard page. (Figure 7)

Figure 7
Step 10 - Print each layer on regular white paper. (Figure 8) (Warning: with regular white paper, some light will shine through parts you don't want light to shine through. You get used to it though)

Figure 8

Step 11 - Cut out the images and glue the black behind the coloured. Align using a bright light behind them. Use ordinary wood glue and press in a heavy book overnight.

Step 12 - Reverse step 1 to install back into vehicle.