Chipping

What does "chipping" a car actually do?


Sean

 

increases HP ( trimming engine by entering new software)

 

in the long term, it destroys your car

 

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

 

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

 

'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.

 

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.


--

Stewart Hargrave

Faster than public transport


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