Chipping

What does "chipping" a car actually do?

Sean

Reply to
Sean Nugent
Loading thread data ...

increases HP ( trimming engine by entering new software) "Sean Nugent" skrev i meddelandet news: snipped-for-privacy@4ax.com...

Reply to
JohanE

in the long term, it destroys your car

Reply to
Wurre

On Tue, 22 Jul 2003 11:05:45 GMT, "JohanE" wibbled about:

Ok - so how does it do this. What parameters are changed to actually cause the increased HP & torque...

Specifically for a turbo car btw

Sean

Reply to
Sean Nugent

Changing the 'chip' is usually reserved for turbo cars. Changing the chip increases the turbo boost, changes the fuel/air ratio and valve and/or ignition timing.

Brick_0

Reply to
Brick_0

'Chipping' is done to cars that have electronic management systems. These management systems control things like fuel injection, air charging, etc over the whole performance range of the vehicle, and the manufacturer usually chooses a design well within the performance envelope of the vehicle, and may also be a trade off between performance and economy. A modified chip can have certain characteristics of the systems tweaked so that they are pushed further to the edge of the performance envelope...usually to gain power. If the tweaks go too far, then damage could be done to the vehicle.

There are some very reputable companies out there offering good chip upgrades which give smoother acceleration, better torque, and more usuable power....but then there are also some very naff ways (IMHO such as the Ebay resistor mod)which might be considered very dubious.

Reply to
Conrad Edwards

From a point at sea, to the circles of your mind, this is Sean Nugent:

You're talking about re-mapping the engine management control - either the ignition, or fueling, or both. Since the developement of software control, ignition advance no longer needs to be linear, governed by simple centrifugal weights and modified by manifold depression. Electronically controled fueling is a lightyear away from that which was dependent solely upon the flow or depression in the inlet tract.

Graphical representations of the 'mapping' that controls these aspects under the infinite veriety of engine and load conditions, are three-dimensional. You can program in a veriety of different objectives that will vary the torque and power output of the engine, depending upon what you want to achieve.

This is engine tuning as computer science, but as with any form of tuning, bigger numbers mean greater stress on the engine.

Reply to
Stewart Hargrav

MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.