Tip chip?

Is it true that Porsche sources its tiptronics from Audi and M-B? If so, I'm wondering if it's possible to chip the tip, to reduce shift times in both manual and auto modes. The idea is to eliminate "lazy" shifting -- response lag goes from about 1.0 seconds to 0.2 seconds. Any thoughts? (Trading for a manual is not an option for me, because of a tremor in my right arm. it's easier for me to shift with my thumb than it is to turn on the radio!) Bill

I know it's out-sourced...I don't know where tho. I sure would like to find out as well!

I have noticed that the gear shifts are a bit slow...on the Prsche website it says.. 'Gearshifts take around 0.2 seconds to complete, which means there's virtually no interruption in drive.' Feels like a lot more than 0.2 seconds to me.

The tip trans in the 996 is built by a company called ZF. the trans out of the turbo is from mercedes. but the ultimate is audis new tip in the tt it is a siquential trans with shifting done in .0059 seconds A true F1 style trans. P.S. there is no trans chip for the 996. cheers

Hey Tuner, you seem to know what your are talking about. Is the TipS trans on an 02 C4 the same as the Turbo TipS. I heard that because it was a C4 the Turbo TipS and the C4 TipS were the same.

I have been told this numerous times, but also that all 996 Tip traansmissions had been upgraded as of 02 to run the software originally developed for the TT. The big difference is the number of shift patterns the TT version has in memory. Don't quote me - there must be others who really know what the answer is!

Oh, well. Sounds like the best upgrade path is a MY02+ TT! Bill

I've got the tip in my 99 Boxster, and a 6speed in my ttX50. In the Boxster, the shifts with the buttons are slow. But, if you just leave it in automatic and really stomp your right foot down fast and hard, the shifts are faster, more positive and occur right at redline-something you can't do with the buttons. Ihad to really concentrate on keeping the throttle pedal ALL the way down HARD. If you're really loading the car in the corners (I'd say about 7/10's driving) the car will difinitely hold the gears properly in a corner, and if you conistently brake hard with this style of driving, you'll get solid downshifts under braking. It was hard for me to accept, but the tip is much better if you just leave it in drive and push hard. You might have to take it to a track to prove this to yourself- I did, and it was unquestionably faster. The problem is that you get none of this good behavior unless you're really driving hard, and that means cornering hard too. AS

I heard of a company called GIAC that has a tiptronic chip, but maybe it is only for VW & Audi application. http://www.giacusa.com/giac/home.php...r&mn_img=pline I don't know anything else about them. Gotta run, so I don't have time to do search any deeper.

The new Audi 'box is not a true F1-style transmission. The Audi gearbox is indeed sequential, but with odd gears on one shaft and evens on another. It "preselects" the next gear on the declutched shaft (ie while in 1st, 2nd is selected on the parallel shaft but declutched). When you shift, it simply swaps to the other input shaft, then selects the next gear up on the now idle shaft. Extremely clever, and I think will replace all the high-end Tiptronic style autoboxes out there now, but not like an F1 gearbox. An F1 gearbox is a lot closer in operation to a motorcycle gearbox. It's true sequential, in-line gears. It uses a computer operated clutch, and can be operated in either auto up/manual down, manual up/auto down, auto up/auto down or manual/manual (meaning only by driver selection). Interesting to note that on a test stand with an electrically driven input shaft and letting a computer handle the shifts, an F1 gearbox is capable of ratcheting from 1st thru 7th and back to 1st in about a fifth of a second (200ms)! I understand it sounds like a machine gun when it does that! -Paul

And I forgot to add that the new Audi system is very similar to Porsche's own Doppelgang gearbox they sometimes used in the 956. -Paul

the trans in the c4 and the turbo are similar yet very different. the housings are essentially the same but the internals are completely different. the gears in the turbo are longer and are a lot stronger. the gears in the c4 are shorter not as strong, the computer is also different. In regards to the audi f1 trans I stand correct myself. the info I received was from Peter Baron, He said the same as ettsn. I was not listening clearly. As far as the 956/ 962 trans I have a few friends who have them I will ask on the drive ability of the trans. I know the biggest complaint on that trans was the weight. Cheers Bryan