So zero slip issues?? How does the pedal and take up feel against the stock clutch? Any differences at all? Any compromises?

Would also like for matthew to respond to his thoughts regarding my earlier post.

 

At 1k there are no issues. SACHS was recommended by APR for the 997tt. Engagement and response does "feel" different-improved and quicker. But not on and off like a racing clutch. Very much like stock, perfect for a DD with the occasional DE. I will keep you posted when I run 100 octane.

 

Tj

Sorry again lol, it was a long day yesterday. Stock intercoolers, and we upgraded just the disc and plate with stock flywheel.

Let me know if you have anymore questions, I'm here all day

 

Speed21,

Where are you getting your information from regarding what clutches we use?

With that said we do use a clutch that is rated at about 650 ft lbs. Sach's clutches are a bit underrated and have no problem handling the extra 30-40 ft lbs that APR claims. It's their stongest organic clutch disc and plate set up if I'm not mistaken and it's working great. Our local client has taken it to several track days over the last year, and drives it hard just about every weekend out on his back roads near his home just outside charlotte and it still holds strong.

 

Seeing the timeslips esp for the tiptronic car, these are for sure hell of fast times for just a flash and 100 octane gas

But then again these are some pretty smoking 60ft times

I always wondered how on earth one achieves these times (1.5 secs) esp on stock tyres...

These proves how different the tip to manual cars are and the super advantage the launch control and esp the "building up boost from standstill" fucntion that comes with launch control, gives to the tip cars...

In my opionion a 6speed car with the exact same setup would never see these times...

Nevretheless these are upgraded vtg's (good ones) and IC's 1/4 mile times and I am most certainly impressed!

 

GTsilver2010

APR doesn't have software yet for the 997.2TT. These software numbers are based off the 997TT first gen.

APR does all their testing and tuning in house so it would require your car be sent to APR for proper testing. This can take as long as a few weeks or a few months. I do have speedART software available which we import from Germany if your interested shoot me an email @ mkrisel@gmpperformance.com.

 

If I recall correctly- the 1st times are with a 6 speed and are quite fast. They are using STOCK VTG's and INTERCOOLERS ? There is no mention of upgraded VTG and intercoolers. In fact I posted an earlier thread asking it they used stock intercoolers. Matt, could you clarify the cars set up.

 

Added 100 Octane and changed the ECU program at the station. No issues at 22 miles. Ran the car fairly hard, 7-8 bar, not full throttle- bout a 1/2 throttle on sport mode. Granted, when I find an opportunity I will run it WOT but being a Holiday weekend without a radar detector I'll have to wait.

 

Tj I believe Madsex was saying that the TIP times of the APR cars are right up there with other cars running upgraded turbos and intercoolers.

 

Matthew,
Have you heard any issues with the flashed tip cars and reliability? I am debating the flash, but would hate to eat up a 15 thousand dollar tranny.
-Getz

 

Getz,

I can't say for sure how long the tranny will last. I can only give you information based on previous experience with my local cars.

The tip car we had here was drag raced often. I would say at the very minimum once a month and always ran 100 octane just like the manual one also posted in this thread. He has had the software in his car since fall of 2007.

The tranny has yet to slip or so any signs of failure. I think if it couldn't handle the power I think it would have showed some signs already with over 2 years of abuse.

However if you do run into issues with it we can flash the car back to stock completely and wipe out every last trace of APR software by sending you our laptop and have it covered under warranty.

Simply just re download the stock file. You can send us your ECU too as well but that's more work than necessary.

Hope this info was helpful.

 

There are heavily modified 996TTs that run nearly the same transmission that are trapping high 130s with no problems.

 

I have heard that the Merc biturbo V12 cars use the same tranny and have mid 600s for torque so it may be okay for the long haul. I may have to give this some more thought. I just spend an extra 2 grand for a CPO, and I would hate to lose that..
-Getz

 

Is it different in terms of take up point (ie: higher/lower) and, is it different in terms of pedal weight (ie; a bit stiffer pedal) Thanks .

Im assuming the clutch is a bit more grabby when it does begin to take up? Just like to know all the differences a user should expect when doing an upgrade of this nature. Thanks .

Is there a problem with my info? I believe it is accurate. There is only two Sachs variants for the 997tt.1 so if you (and everyone else over there in the states) are selling Sachs performance clutch kits then they can only be from what Sachs have available. Anyway my interest was more so in establishing whether there was any problems with slippage due to the torque ratings of the two Sachs presure plate variants. As i said its apparant the 752 plate at 740nms is out given APR is supposedly producing 865nms but wasnt clear whether there was enough tolerance built in using the 764 p/plate given its rating at 890nms and the APR tune having a claimed 865nms.

From what ive read on 6speed and other forums there have been cases where owners have upgraded their tiptronic boxes due to slippage issues from power upgrades. There are companies that specialize in doing these upgrades as well so there is evidently a financially viable market in upgrading these tiptronic transmissions. I imagine owners wouldnt be doing these upgrades for the sport either so mindfull the APR tune produces some 200nms more torque over stock and, given the manual clutch assembly clearly does not cope, it is logical the same would have to apply at one point with the tiptronic mission. Replacing a clutch and pressure plate is far cheaper than doing a tip gearbox as well. Incidentally i note there are already companies out there right now either in development or with upgrade kits for the 997tt.2 PDK transmissions. Again i imagine these kits would not be required if the gearbox could sustain the onslaught of additional power from tune upgrades producing output similar to the APR tune. Whilst you may well have no current examples to draw upon associated to the APR tune as such, thats not to say that wouldnt be the case in the future particularly based on the history of other tunes and the requirements that follow.
This would have to be food for thought for any tiptronic gearbox P car owner. Many here are focused on the speed and performance aspects of the APR tune which is fine however as you know from my previous posts i've always had a keen interest in establishing the knock on effects of a tune upgrade.

Sometimes all that glitters is not gold.

Purchasers should always be made conscious of the risks.

PS. On the warranty aspect with Porsche, I thought the jury was still out (re the recent Softronic Tune critisism's thread) whether any tuner was able to keep a tune totally undetected from P's prying eyes in the event such catastrophe occured and a bogus claim was later found made.

Needless to say there is also a very serious honesty issue at stake here as well.

 

I run APR software for about 13000miles without any tip slipping issue...and of course,car runs flawless every day...Couldnt be more happy...However I am thinking of installing a set of IC in order to lower IAT during the hot Greek summer...