Gearbox Technical Data - Porsche 911 GT3 R Technical Manual

5. Gearbox
5.1.

Gearbox technical data

The six-speed sequential gearbox fitted to the GT3 R is fitted with a limited
slip differential, an oil filter and a water / oil heat-exchanger for cooling
purposes. The gear pairs are uniquely matched and should never be
mixed. If one gear is damaged the gear pair should be replaced.
Gearbox type
Design
Number of gears
Standard gear ratios
Drop Gear
Crown wheel & pinion
st
1 gear
nd
2 gear
rd
3 gear
th
4 gear
th
5 gear
th
6 gear
Lubrication
Lubricant
Oil capacity after newly build
Limited slip differential
Locking value, drive
Locking value, overrun
G 97/72
Sequential
6
25/32 1.280
9/26 2.889
13/41 3.154
16/39 2.438
19/37 1.947
22/35 1.591
20/27 1.350
25/29 1.160
Gearbox mounted oil pump
Oil – water heat-exchanger
Mobil 'Mobilube' SHC
4.0 litre
45 % (dynamic)
65 % (dynamic)
44