996 Turbo / GT2 Turbo discussion on previous model 2000-2005 Porsche 911 Twin Turbo and 911 GT2.

Differences between X50 and GT2 Tranny?

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Old Nov 4, 2006 | 03:08 AM
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Differences between X50 and GT2 Tranny?

The X50 and Turbo S models come with a "stronger" tranny. The GT2 reportedly is identical to the TT tranny except the front drive output shaft is covered by a cover.

Coincidentally the X50 and GT2 were introduced side by side. Is this the same exact "stronger" unit?
 

Last edited by Turbo Fanatic; Nov 4, 2006 at 03:32 AM.
Old Nov 4, 2006 | 07:52 AM
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Yes, exactly the same!!
 
Old Nov 4, 2006 | 11:00 AM
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The X50 and GT2 both have the stronger tranny.
 
Old Nov 4, 2006 | 11:42 AM
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The GT2 has a transmission cooler.
 
Old Nov 4, 2006 | 11:43 AM
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If the X50 and the GT2 have the same tranny, why does the X50 still have the 2nd gear popping out issue and the GT2s with the gear issue seems not to exist?
 
Old Nov 4, 2006 | 11:46 AM
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It may exists. However with the low production number of the GT2, less number of the defects are being reported .
The gearings on the GT2 may be different.
 
Old Nov 4, 2006 | 11:48 AM
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Originally Posted by Khoalty
If the X50 and the GT2 have the same tranny, why does the X50 still have the 2nd gear popping out issue and the GT2s with the gear issue seems not to exist?
The GT2 has a different shifter/linkage.
 
Old Nov 4, 2006 | 11:49 AM
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Josh
How does your Stage 4 Gt2 compare to CGT above 100mph?
 
Old Nov 4, 2006 | 12:00 PM
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Originally Posted by vincentdds
Josh
How does your Stage 4 Gt2 compare to CGT above 100mph?


I unfortunately have only had an opportunity to drive a few miles with the new Stage 4 flash due to the car being at the dealer for service, but I would say the CGT is still faster. The GT2 with the way the turbos make power and its generous amount of torque feels quite fast, but once you start ripping through the gears at high rpm with the CGT, the GT2 falls a bit short.
I will have the GT2 back next week and should be able to make a better comparison.

 
Old Nov 4, 2006 | 12:10 PM
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the x50 has steel syncroes?
 
Old Nov 4, 2006 | 12:30 PM
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Originally Posted by fasteddiett
the x50 has steel syncroes?
Congrats on new toys dude. Just spoke to Forcefed re:380 Turbos package for the Exige/Elise>>>>$16K w/ built engine.
 
Old Nov 4, 2006 | 12:38 PM
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thanks, forcefed is right around the corner from me and i talked to them last week.... the exige is for sale...
 
Old Nov 4, 2006 | 06:02 PM
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Originally Posted by vincentdds
It may exists. However with the low production number of the GT2, less number of the defects are being reported .
The gearings on the GT2 may be different.
Probably agree with this. Maybe teh "stronger" part is the syncros?

Stephen? Any opinion on this?
 

Last edited by Turbo Fanatic; Nov 4, 2006 at 08:50 PM.
Old Nov 4, 2006 | 11:17 PM
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the stock TT tranny and the X-50 trannies are the SAME. I dont know about the GT2 as I dont have one.
I have personally been involved in the rebuild of my X-50 tranny. It is a myth that it is "stronger" than the stock unit (again dont know about the GT)
There are NO steel syncros. On my rebuild I replaced all the brass syncros with steel.
The brass ones are in there because of their lesser tendency for expansion and contraction vs steel. Thus hot or cool they are about the same size.
When you go with steel, cold shifting is initially notchy and not very smooth. As the tranny warms up it becomes "normal" to shift. Ordinary buyers would not put up with the initial feel of a tranny with steel syncros. However they are much harder metal than the brass ones.
Just my 2 cents learned from experience with my own trans.
 
Old Nov 5, 2006 | 04:37 AM
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This is a cut and paste from the factory order guide. Something is different since the transmission is "modified"



OPTION X50 Turbo Power Kit 450 HP
Includes modified turbo chargers,
intercoolers, electronic control units, and
transmission.
$17,880

Something is different...
 

Last edited by Turbo Fanatic; Nov 5, 2006 at 04:41 AM.


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