Connecting Rod; Connecting Rod Bolts; Tightening Procedure; Piston - Porsche 911 GT3 Cup 2008 Technical Handbook

Connecting rod:

Connecting rod bolts:

Tightening procedure:

Piston:

Cylinder:
Cylinder head:
Because the connecting rods have a shot peened surface care must
be taken that no visible damage occurs when removing or fitting.
The connecting rod must not be polished.
Attention: The connecting rod bolts must always be renewed
when the engine is completely overhauled. The surface of the
mating faces must not be damaged.
Attention: The threads and mating faces must be lubricated with
engine oil.
Initial torque: 30 Nm +/- 10 % (mating torque)
Final torque: 1 x 60° +/- 2° torque angle
The light-alloy pistons are 99.95 mm in diameter. The position of the
inlet valve pocket should be noted when fitting the piston. The
underside of the piston crown is cooled by sprayed oil. The weight
difference between all the piston/connecting rod assemblies must not
be greater than 5 grams.
The cylinders are manufactured from a high-strength light-alloy with
Nicasil coating and have a bore of 99.98 mm.
The cylinder head is a GT3 RS production component.
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