1. Fabrication of
both inlet and exhaust manifolds to fit the specific application.
2. Engine compression ratio to be checked and
lowered where necessary, ideally this would be between 7.5:1 and
8.5:1 (typically) to allow any significant boost pressure to be
used. This can be achieved in one of three ways: preferably fitting
of forged low compression pistons, machining the top of the standard
pistons or the fitting of a thicker head gasket or spacer plate.
3. Camshaft specification should also be checked
to ensure that the duration and valve overlap is not too great
for the application. Ideally this would be a camshaft of mild
duration and overlap.
4. The fuel system i.e. injectors, fuel pump,
pressure and mapping of the ignition system would also need to
be modified for the increased requirements of the turbocharger.
The ignition timing needs to be retarded as the boost pressure
rises.
5. To specify the correct turbocharger for the
application we would require the following basic information: |
