6 speed trans and 993 engine, Inverted 6 speed trans from a 993 |
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6 speed trans and 993 engine, Inverted 6 speed trans from a 993 |
Miguel K R |
Dec 15 2019, 04:47 PM
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#1
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Newbie Group: Members Posts: 20 Joined: 12-December 19 From: Portugal (Europe) Member No.: 23,732 Region Association: None |
Hi,
I am going to fit a 6 speed G50 trans (inverted) from a 993, with a 3.6L varioram engine. I will have to use a cable shifter (from Patrick Motorsports or CableShift. California Motorsports modifies the trans for a cableshift running from the side but that is excluded for me as I am based in Europe and would have to send the trans to the US to be modified, and back to Europe). My question is if there is enough length for the long nose of the trans . I know I have to cut the trunk for the inverted trans. I have seen at the Renn... forum a car which had the bellhousing and shaft shortened at Patrick Motorsports in 2005 but they did not explain if that was necessary, or if as an alternative, the opposite side could have been shortened. CMS states that shortening the bellhousing is not recommended for G50's later than '89 due to starter compatibility issues. I guess the issue is the elimination of the guide bushing for the starter when the bellhousing is shortened, and that is not an issue for '89 and earlier cars, because High Torque Starters which do not use that bushing are available. For '90 and later cars I have not been able to find those starters. Can someone help with information on the application of the 6 speed trans from a 993 ? I am building a 914-6 GT replica and already started applying the fender flares, and modifying the engine cover with a second grille. |
Miguel K R |
Dec 19 2019, 04:19 PM
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#2
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Newbie Group: Members Posts: 20 Joined: 12-December 19 From: Portugal (Europe) Member No.: 23,732 Region Association: None |
Looking at cars with the engine lid and grille raised to allow space for the varioram inlet, I decided to buy the inlet system and the fuel rails from a 964.
I will have to enlarge the exit of the 964 manifolds from 41 to 43mm to match the inlet of the 993 engine. I will use the injectors of the 993, and I will have to program the Engine Management System (it's not a Motec, but a Sybele, made in Belgium by Skynam : http://www.skynam.com/index.php?id_lang=1 ) I am now convinced to forget my 6 speed G50, and buy a 6 speed Boxster or Cayman trans. I still have to figure how to connect it to the engine, and how to install the starter. |
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