Any long term issues with GT2 clutch conversion?

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Jun 14, 2013 | 12:41 AM
  #1  
I just recently picked up an 02 996TT and I totally love the car, but I absolutely hate the clutch. I've driven manual cars in the past with no issues, but after several hundred miles of driving this one I am still having trouble with this one. I find the engagement point of the clutch to be too high, and I just can't seem to get good starts from first without feeling like I'm burning the clutch. I know that the clutch is fine, I had a detailed PPI done on the car (and it only has 9k miles on it).

In the reading I've done, it seems like a GT2 clutch conversion may be my solution. However, I've also read that some people have some long term issues as a result of this mod? Can anyone clarify this?

Thanks!
M
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Jun 14, 2013 | 03:17 AM
  #2  
Also, what is considered to be the best conversion kit out there? I am reading EVOMS and SpeedTech being thrown around quite a bit
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Jun 14, 2013 | 07:15 AM
  #3  
I don't have any long term data, but I've had mine for about 8K miles (daily driven) and it was the best decision I've made. The pedal pressure is a lot stiffer and the engagement is a lot easier to modulate for sure. I have the EVOMS kit that I got through my local shop and have had zero problems with it so far.
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Jun 14, 2013 | 07:18 AM
  #4  
How much did it cost you to have it installed?
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Jun 14, 2013 | 07:23 AM
  #5  
Well I had mine installed when I had the engine out for coolant pipe welding so I can't really say how much just the slave conversion cost.

James
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Jun 14, 2013 | 07:33 AM
  #6  
Quote: I just recently picked up an 02 996TT and I totally love the car, but I absolutely hate the clutch. I've driven manual cars in the past with no issues, but after several hundred miles of driving this one I am still having trouble with this one. I find the engagement point of the clutch to be too high, and I just can't seem to get good starts from first without feeling like I'm burning the clutch. I know that the clutch is fine, I had a detailed PPI done on the car (and it only has 9k miles on it).

In the reading I've done, it seems like a GT2 clutch conversion may be my solution. However, I've also read that some people have some long term issues as a result of this mod? Can anyone clarify this?

Thanks!
M
It's extremely reliable. I have had mine on now for 6 years/70,000 miles without any issues...

The conversion will cure the odd feeling of the OEM clutch - that's what it does...
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Jun 14, 2013 | 07:36 AM
  #7  
Try pulling the clutch spring booster. #9 in the below diagram. Easy to remove and put back in if it's not what you're looking for. The guys who did it said the resulting change was exactly what they were looking for in terms of engagement feel.

I have not done this myself as I'm ok with the stock clutch, but may be worth a try as apparently it's easily reversible.

Rennlist discussion on removing

1. remove the plastic air ducting thats in the way
2. remove the elecrtical switch by disconecting the terminal and twisting switch 90 degrees
3. I found it easier NOT to remove the clip and pin in the plastic male clevis
4. insert a nail or short piece of wire thru the hole in the pin that extends thru the back side of the sping canister to prevent the spring from fully extending upon removal
5. depress the clutch pedal as necessary and pry the complete spring and canister forward to release it from the gold bracket
6. maneuver the spring assembly so as it will drop out as the pedal is depressed fully


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Jun 14, 2013 | 09:32 AM
  #8  
good post/diy link. i may try that
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Jun 14, 2013 | 11:05 AM
  #9  
What's this I hear about the GT2 conversion kits failing? Some people mention issues with mounting it or with the bell housing???
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Jun 14, 2013 | 11:18 AM
  #10  
The only way I can think of it failing is not flushing all of the Pentosin from the system causing pre-mature failure of the slave cylinder.
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Jun 14, 2013 | 11:26 AM
  #11  
Quote: good post/diy link. i may try that

let me know how it goes and maybe we can meet up one of these days...perhaps ill follow suit
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Jun 14, 2013 | 01:48 PM
  #12  
Quote: Try pulling the clutch spring booster. #9 in the below diagram. Easy to remove and put back in if it's not what you're looking for. The guys who did it said the resulting change was exactly what they were looking for in terms of engagement feel.

I have not done this myself as I'm ok with the stock clutch, but may be worth a try as apparently it's easily reversible.

Rennlist discussion on removing

1. remove the plastic air ducting thats in the way
2. remove the elecrtical switch by disconecting the terminal and twisting switch 90 degrees
3. I found it easier NOT to remove the clip and pin in the plastic male clevis
4. insert a nail or short piece of wire thru the hole in the pin that extends thru the back side of the sping canister to prevent the spring from fully extending upon removal
5. depress the clutch pedal as necessary and pry the complete spring and canister forward to release it from the gold bracket
6. maneuver the spring assembly so as it will drop out as the pedal is depressed fully


if your going to do this mod you need to replace the spring NOT remove it. if you just remove it your cruise control may not work and i got clutch codes. replaced the spring with a 6$ home depot unit and everything is fine. clutch feel is better and cruise works no codes
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Jun 14, 2013 | 01:56 PM
  #13  
Removing the spring will not make the clutch behave like a GT2 conversion. The feel with a GT2 conversion is totally different, very precise and exact in actuation...the clutch feathering feedback is spot on and exactly the same every time.
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Jun 14, 2013 | 01:59 PM
  #14  
Quote: let me know how it goes and maybe we can meet up one of these days...perhaps ill follow suit
it's now on my list. step by steps are great. so yeah.. we're about due for your inaugural beach canyon run

"on any sunday".. and welcome to kali!

ADD: to john@speed's point about clutch action/feel..

i have been in no hurry to try this for the very reason mentioned. only so much removing a friggin *helper* spring can do lol.
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Jun 14, 2013 | 01:59 PM
  #15  
Quote: Removing the spring will not make the clutch behave like a GT2 conversion. The feel with a GT2 conversion is totally different, very precise and exact in actuation...the clutch feathering feedback is spot on and exactly the same every time.
i agree completely john. however a 6$ mod made a large difference in how the pedal feels compared to the oem setup. before the spring swap i would routinely stall the car. now its a rare occurance. when the accumulator fails the gt2 will be on my list
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