19
Cylinder head
The cylinder head is also a modified carry-over part sourced from
VW's 2.5l R5 MPI engine. To withstand the higher stresses which
occur in a turbocharged FSI engine, it was necessary to make the
following modifications:
• Different aluminium casting alloy
• Lower-set water jacket around the spark plug
• Tempered exhaust valve seat rings
• Attachment of the high-pressure pump to the ladder frame
• Optimised exhaust cam contour
• Additional exhaust cam phaser
• The exhaust valves are sodium-filled for cooling
• Turbo-specfic intake port (to produce the required tumble air
flow in the combustion chamber)
451_006
Cylinder head gasket
Cylinder head
Upper timing case cover
Rocker cover
High-pressure fuel pump
Intake valve diameter in mm 33.85
Exhaust valve diameter in mm 28
Intake valve lift in mm 10.7
Exhaust valve lift in mm 10
Intake camshaft adjustment range in ° crank angle 42
Exhaust camshaft adjustment range in ° crank angle 22
To Next Page
Loading...
Need help?
General
