

| Subject: | Re: G 50 - What is it? |
| From: | Eric Fournier |
| Date: | Wed, 9 Apr 2003 16:45:40 -0000 |
John Rodgers <j_rodgers@CHARTER.NET> said: > Can any one tell me what a G 50 (?) tranny is and what's so special with it? > > Thanks, > > John Rodgers > 88 GL Driver > It's Porsche. Here's some info swiped from the Ultima GTR site: In 1987, the G50 gearbox was installed into the Carrera 3.2 911. This transmission used Borg-Warner syncromesh instead of the Porsche- design balk-ring system to improve the shift quality and lessen the effort required to change gears, especially from a stop. These gearboxes were rated at 221 ft/lbs of torque. The G50�s have been utilized with several variations of gearing and speeds. The 993 series was the first 911 offered with a 6-speed version of the G50 design. These later units also introduced significantly improved clutch cooling. Other versions of the basic design, called the G50/52 series, were used in the 3.3 C2 Turbo and 3.6 C2 Turbo cars. These transmissions also have stronger differentials and cases and a type of Limited Slip differential that locks 20% under power and near 100 % on the overrun to minimize trailing-throttle oversteer. All of the G50 cars use the 240mm clutch size introduced on the earlier Turbo cars and they are now hydraulically actuated. Eric Fournier
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