 993 6-speed transmission? |
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| EdwardBlume |
 Apr 11 2010, 03:43 PM
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#21
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914 Wizard  Group: Members Posts: 12,338 Joined: 2-January 03 From: SLO Member No.: 81 Region Association: Central California 
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You know a 993 shifts like "butter"... (IMG:style_emoticons/default/drooley.gif)
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| JWest |
Apr 11 2010, 06:48 PM
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#22
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Senior Member Group: Members Posts: 1,662 Joined: 6-January 03 From: Fort Worth, TX Member No.: 97 Region Association: None
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You can't flip the ring gear in a G50 or newer Porsche transmission.
This is not because of room in the housing (this we could figure out how to overcome), it is because of the gear design. The 901 and 915 use a simple spiral bevel gear where the axis of the pinion is aligned with the axis of the ring gear. In this case, rotating the ring gear around the pinion's axis has no effect, as the axis is the same as the normal pinion rotational axis. In the G50, Porsche went to a hypoid design which places the axis of the pinion below the axis of the ring gear. The cut of the gears required for the off axis alignment (a hyperbolic tooth shape) results in a failure to mesh if the ring gear is flipped. |
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| charliew |
Apr 11 2010, 08:37 PM
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#23
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Advanced Member Group: Members Posts: 2,363 Joined: 31-July 07 From: Crawford, TX. Member No.: 7,958 |
I think that is the deal with the suby tranny also and now a aussie is making the reverse cut ring and pinion for the 5spd suby tranny for the tail draggers.
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| Loser_Cruiser |
Apr 23 2010, 02:19 AM
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#24
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Member Group: Members Posts: 407 Joined: 4-April 05 From: Bellingham, WA Member No.: 3,873 Region Association: Pacific Northwest |
so has any one ever used any of the renegade hybrids G50 mid-engine stuff? They seem to have a neat looking side shift piece, as well as a nose cone delete plate/ mount. Curious as I am graduating soon with my BS in EE, as soon as I get a job I plan to start gathering my parts up (IMG:style_emoticons/default/smile.gif)
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| Porcharu |
Apr 23 2010, 09:50 AM
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#25
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Senior Member Group: Members Posts: 1,314 Joined: 27-January 05 From: Campbell, CA Member No.: 3,518 Region Association: Northern California |
QUOTE(SirAndy @ Apr 9 2010, 03:14 PM)  QUOTE(Porcharu @ Apr 9 2010, 03:12 PM) Might be easier to go with the 6 speed Subi. Not like your car is stock. Easier than mating a 993 transmission to a 993 motor using a 993 flywheel and 993 clutch? (IMG:style_emoticons/default/biggrin.gif) Andy OOPs! Didn't look close enough to the picture - I was thinking Boxster trans. |
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| Porcharu |
Apr 23 2010, 09:52 AM
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#26
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Senior Member Group: Members Posts: 1,314 Joined: 27-January 05 From: Campbell, CA Member No.: 3,518 Region Association: Northern California |
QUOTE(charliew @ Apr 11 2010, 07:37 PM) I think that is the deal with the suby tranny also and now a aussie is making the reverse cut ring and pinion for the 5spd suby tranny for the tail draggers. Yep - that is exactly the reason. |
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