Rover PG1 gearbox

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Pg1.jpg

Various Rover PG1 gearboxes have been used in the K Series powered Lotus Elise and the only way to identify them is from the serial number (somewhere) on the housing;

C6BP.... Standard box for Elise Mk1 and MGF

C4BP.... MGF VVC box (as standard but final drive 4.2)

B4BP.... Lotus CR box, Elise Mk1 111s + Elise Mk2 standard box

B4BPU... Exige S1 (uprated)

B4BPQ... Exige S1 with LSD

G6BP.... Elise S2 111S

XnYY where "X" is the gearset, "N" is the Final drive and "YY" is the Diff (BP=Open BPQ=LSD)




Car  PG1  1 2 3 4 5 Final
S1 "standard" C6BP 3.167 1.842 1.307 1.033 0.765 3.938
S1 111S & S2 "c/r" B4BP 2.923 1.750 1.307 1.033 0.848 4.200
MGF vvc C4BP 3.167 1.842 1.307 1.033 0.765 4.200
S2 111S "long" G6BP 3.250 1.895 1.308 1.033 0.848 3.937
Eliseparts   3.167 1.842 1.410 1.100 0.910 3.938
Suggested Ideal   *6BP  2.923 1.750 1.307 1.033 0.765 3.938
Exige S1 uprated B4BPU 2.923 1.750 1.307 1.033 0.848 4.200
Exige S1 with LSD B4BPQ 2.923 1.750 1.307 1.033 0.848 4.200


Gearbox oil used are:

  • Texaco MT94
  • Castrol TAF-X
  • Castrol SMX-S


Other sources of information

Quaife

ATB DIFFERENTIAL