Performance Chip for a Tiptronic.

Can one feel the difference in performance if a performance chip was put on a 91' Carrera C2 Tiptronic. And is it safe.

I don't think your tranny will make a difference in how the chip works, but I guess someone might be able to assess it for sure.
Chipping a 964 though? Don't you have enough %^%^%& HP and Torque already, hot shot? :P


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Kurt B
1984 911 Carrera Cabriolet
75 914 1.8

Isn't that what they call a maxiorim, performance and tiptronic? Did I spell that right? You know, two words that don't belong in the same context......

Oxymoron. A figure of speech in which apparently contradictory terms appear in conjunction. (See, we writers are good for something.)

I have a 964 engine with a chip that (allegedly) delivers 20-25 extra hp. I never had the engine without it, though, so only a dyno could confirm it.

I can't imagine why your transaxle would affect the performance of the chip, or vice versa.

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Jack Olsen
1973 911 T sunroof coupe

Hey, I used the words conjunction, allegedly and vice versa in a single posting. I'm a geek!

I really can't tell you about the chips available, but I wouldn't be put off too much by critics of the "tip". I was looking at a '91 with a "tip" several months ago and was given the opportunity to test drive it for about 2 hours (I brought some timing equipment with me...I wanted to test that "tip" out!).

Knowing full well that there was a performance penalty associated with a Tiptronic as reported by the press, most of which seem to occur when operated in FULL AUTOMATIC mode I decided to do some 0-60mph tests in manual and automatic modes. In full automatic mode I found the 0-60 times to be lagging from the reported equivalents for a manual transmission by as much as one second. In manual mode, I was able to shave about 0.75 seconds off that deficit, and with enough practice...who knows. I doubt the "tip" will ever equal a manual, but for an automatic transmission with a "manual" mode, I would have to say it was the most impressive automatic unit I've ever driven (including the new C5 Corvettes).

The Tiptronic units 0-60 deficit, in both full automatic and manual modes, seems to be, like most contemporary automatics, in the fact that they like to start off from a dead stop in 2nd (not 1st) gear. This is an efficiency thing (i.e. EPA related) and it takes time (0.5 seconds is not uncommon) for the transmission computers to determine that the gas pedal is being pressed hard enough to actually warrant a downshift into 1st gear. When cruising in "regular" traffic, I noticed that at stop light the "tip" would ALWAYS go into 2nd gear and try to remain there during acceleration away from the stop light as long as possible...even in manual mode. I had to manually downshift the unit to 1st gear before taking off from such a position. To optimize performance will likely take a little practice and monitoring of the gear indicator on the dash. The "tip" if left to it's own means will select efficiency over power, and if you can test and figure out the best way to overcome this in manual mode (and I think it can be done) it will likely help your performance a lot more than a chip/exhaust/intake combination...not that there's anything wrong with that!

On the other hand, if you intend to use your car in full automatic mode in a track event..I guess all I could say is good luck and have fun. Having fun is what it's really all about any way.

Good Luck,

Bill Wagner