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993 gt2 g50/54 transmission

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Old 02-07-2022, 03:38 PM
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kabsncoupe
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Default 993 gt2 g50/54 transmission

what would be the value of the real deal? not too many people know what this is. There's 1 available that maybe for sale.
Old 02-08-2022, 12:16 PM
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Kein_Ersatz
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Value will be decided by market any "guess" here is just that, how bad does one want the authentic item (as seen on FB), as can do as good / better with new gear sets, so performance price is determined by like non OEM new - for pure performance sake, but for a collector / historic build, BAT says crazy money is out there. Then there is bespoke Linton trans project that will be unobtainium.
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Old 02-08-2022, 04:57 PM
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budge96
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I recently was able to acquire a G50/31 Cup trans fresh spare from a customer campaigned 993 RS Cup and the price was mid $20 k , I was fortunate enough to obtain factory aluminum hood and Cup tail in the deal so I would venture a used GT2 993 trans to be at least in that range ,$25K plus ...
Bert
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Old 02-09-2022, 01:58 AM
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carmoves
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Originally Posted by budge96
I recently was able to acquire a G50/31 Cup trans fresh spare from a customer campaigned 993 RS Cup and the price was mid $20 k , I was fortunate enough to obtain factory aluminum hood and Cup tail in the deal so I would venture a used GT2 993 trans to be at least in that range ,$25K plus ...
Bert
I've been looking for a cup trans for ages.

How do the ratios of the G50/54 differ from the G64/51?
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Old 02-09-2022, 06:30 PM
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kabsncoupe
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g64/51
  • 1st gear 3.82
  • 2nd gear 2.15
  • 3rd gear 1.56
  • 4th gear 1.21
  • 5th gear 0.97
  • 6th gear 0.75
  • Final drive 3.44, 9”
Old 02-09-2022, 06:51 PM
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kabsncoupe
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Owner had this box gear for Sebring, Road America and Willow springs.
Old 02-10-2022, 08:41 AM
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@Bill Verburg has posted a lot of 993 and 964 trans gear ration data and cup data.
Old 02-12-2022, 12:06 AM
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kabsncoupe
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going in bat with posibility of engine also.
Old 02-14-2022, 08:13 PM
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Originally Posted by carmoves
I've been looking for a cup trans for ages.

How do the ratios of the G50/54 differ from the G64/51?
Cups used g50/30,

RSR used either g50/30 or g50/34

street base RS used g50/31
street RS/CS used g50/32

all of the above have the same external dimensions and mounting points
993 turbo and GT2 all use a trans w/ larger exterior dimensions which move the output end mounts, reason is the larger CWP used on these transmissions
gearing on these is much taller than the n/a aspirated g50s


Old 02-14-2022, 09:44 PM
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Thanks Bill. Your graphs and sheets are always fun to dig into.

Sort of a side stepped question, but has anyone here heard of people replacing 993TT gears with 996 gears/ratios? For the most part (1-4) they appear to be the same, but I came across a car that has GT3 gears for some reason.
Old 10-10-2022, 01:57 PM
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VZ935
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Not sure , but I have one...






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