G-5050 Transaxle ('89 turbo only)
NOTE: All adapter kits listed below are designed to mate an LS series Chevy V-8 motor to the Porsche transaxle. Many other adapter kits are available, but cost may differ according to your motor and transaxle choice, clutch requirements, and application.
In the late '80s, Porsche redesigned the 911-based transaxles to improve shifting and clutch operation. A better synchro design was implemented within and hydraulics were added to operate the clutch. It was not until the 1989 Porsche turbo 911 that the big turbo transaxles were also upgraded with these benefits and a bit more. Five TALL gears were now standard in the turbos, instead of four, and the turbo version of the G-50 was stronger than its normally aspirated counterpart (the G-50).
NOTE: This one-year-only transaxle is rare indeed and often confused with a standard G-50 (such as the G-50 05). Be very cautious when purchasing this tranny as a core if you choose to do so.
Due to the demand for transaxles capable of handling higher horse power like the Porsche G-series, yet the need for a compact (shorter) design for kit car applications, Renegade offers a side shifter conversion to the G-series transaxles. This custom modification allows us to remove the stock shift shaft from the nose (or tail in a mid-engine design), and add a new billet housing and shift shaft assembly to the side of the transaxle. The result is a smoother shifting tranny in a much shorter space. ( picture )
Further advancements needed with regard to the nose of the transaxle opposite the bellhousing, prompted Renegade to develop a new billet end plate that offers a finished look to the rear of the tranny (in a mid engine application). Furthermore, mounting tabs were designed into this plate to facilitate easy connection to the chassis. (This "end" plate can only be used with our side shifter modification.)
We offer conversion components for the '87 to '89 G-50 series transaxles (including '89 turbo) for mid and rear engine application. The Porsche turbo transaxle (G-5050) is best used with motors up to 650 HP. For mid engine application, all G-series transaxles are inverted for proper operation. This requires an adapter plate with the inverted pattern.
NOTE: Prices below include our cores. If the customer supplies cores, cost may be less. Subject to availability.
G-5050: '89 G-5050 transaxle, completely rebuilt, (mid or rear engine): $11,900 (Subject to availability)
Optional: Billet side shifter assembly as indicated above: $1,600
Optional: LS-series adapter plate, custom flywheel, pilot bearing, dust shield, and adapter kit hardware, plus stage two pressure plate, Kevlar clutch disc, throw out bearing with upgraded guide tube and "O" ring, hardened starter ring gear, and all Porsche armature "release" components (except slave): $2,955
Optional: Stage three, high torque, light weight, gear reduction style starter: $289
Optional: Billet nose (end) mounting plate: $550
Optional: In/out fittings and installation for external cooler, pump, filter, etc: $250
Optional: Custom cable shifter to be used with our billet side shifter assembly ( picture ): $800 (up to 100 inches)
Optional: Shortening of the bellhousing and input shaft (lighter clutch components/shorter tranny): $850
Optional: Ring and pinion spray, specific gear spray, or complete spray bars installed: Inquire
Optional: External cooler with fan, filters, pumps, lines, etc: Inquire
The preceding descriptions give you an application, approximate HP rating, and price, to help you choose the correct transaxle and create a budget for your project. Depending on your specific application, performance expectations, clutch specification, gear ratios, HP capabilities, and other variables, cost may change. For more information, and specifics to your unique project, please feel free to contact Renegade.
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