hesitancy at low rmp

[DERM]

On acceleration, my 2000 996TT seems to hesitate a bit at 1XXX rmp before it blast into 2000 rmp up. Is this the turbo lag, but at this rmp the turbo is not yet working, isnt it? This seems to be absent or less prominent in my friend's tt. Can anyone enlighten me ? Thanks!!

[Ed NY]

On acceleration, my 2000 996TT seems to hesitate a bit at 1XXX rmp before it blast into 2000 rmp up. Is this the turbo lag, but at this rmp the turbo is not yet working, isnt it? This seems to be absent or less prominent in my friend's tt. Can anyone enlighten me ? Thanks!!

I can't speak directly to your driving experience with your turbo or in comparison to your fiend's TT, and I don’t know what other non-turbo Porsches you have driven, so perhaps I’m mentioning things you already know:

At 1,000 rpm you’re not going to notice much from any Porsche, in my opinion. That being said, when I first drove my turbo after having normally aspirated 996 C2s for a number of years I felt the turbo was sluggish at lower rpm in comparison to the non-turbo C2s. I had also driven a 997 C4 with the sport chrono package which again seamed much more responsive at lower rpm than the 996 turbo. I had asked my dealer’s tech if the e-gas was the possible problem and if so was e-gas adjustable. I was informed after inspection that there was no problem with my car and e-gas was not adjustable (although aftermarket chips can re-map the acceleration curves as we know).

It took awhile for me to understand that to experience the full torque of the turbo I had to learn to drive it differently from the C2s. I had to learn to depress the accelerator much more initially to get it going than with the C2s. The difference is obvious when the turbos kick in and you are pressed back into the seats. I certainly never experienced anything close to that torque and acceleration with the 996 C2s or the 997 C4. The turbo is extremely fast when I keep my foot down. The all-wheel drive also adds a different feel to the turbo than the C2 at lower rpm. At speed, drop it down a gear and then punch it and I doubt you will feel any turbo lag as you will be engaging at over 3,000 rpm. So now that I’ve learned how to drive it, I’m having much more fun as it screams along.

One other thing I have found to be helpful is to set the computer so that the digital turbo boost gage is displyed in the tach. This helped me to learn what I needed to do with the gears and my foot to get the turbo boost going and maintained.

In my case having the “S” with the larger turbos, the turbo lag is reported to be slightly more pronounced but I haven’t driven the standard turbo to know that first hand.

I hope some of this is informative or perhaps I'm all wrong on this?

Keep your revs up!

Edited November 5, 2007 by Ed NY

[DERM]

On acceleration, my 2000 996TT seems to hesitate a bit at 1XXX rmp before it blast into 2000 rmp up. Is this the turbo lag, but at this rmp the turbo is not yet working, isnt it? This seems to be absent or less prominent in my friend's tt. Can anyone enlighten me ? Thanks!!

I can't speak directly to your driving experience with your turbo or in comparison to your fiend's TT, and I don’t know what other non-turbo Porsches you have driven, so perhaps I’m mentioning things you already know:

At 1,000 rpm you’re not going to notice much from any Porsche, in my opinion. That being said, when I first drove my turbo after having normally aspirated 996 C2s for a number of years I felt the turbo was sluggish at lower rpm in comparison to the non-turbo C2s. I had also driven a 997 C4 with the sport chrono package which again seamed much more responsive at lower rpm than the 996 turbo. I had asked my dealer’s tech if the e-gas was the possible problem and if so was e-gas adjustable. I was informed after inspection that there was no problem with my car and e-gas was not adjustable (although aftermarket chips can re-map the acceleration curves as we know).

It took awhile for me to understand that to experience the full torque of the turbo I had to learn to drive it differently from the C2s. I had to learn to depress the accelerator much more initially to get it going than with the C2s. The difference is obvious when the turbos kick in and you are pressed back into the seats. I certainly never experienced anything close to that torque and acceleration with the 996 C2s or the 997 C4. The turbo is extremely fast when I keep my foot down. The all-wheel drive also adds a different feel to the turbo than the C2 at lower rpm. At speed, drop it down a gear and then punch it and I doubt you will feel any turbo lag as you will be engaging at over 3,000 rpm. So now that I’ve learned how to drive it, I’m having much more fun as it screams along.

One other thing I have found to be helpful is to set the computer so that the digital turbo boost gage is displyed in the tach. This helped me to learn what I needed to do with the gears and my foot to get the turbo boost going and maintained.

In my case having the “S” with the larger turbos, the turbo lag is reported to be slightly more pronounced but I haven’t driven the standard turbo to know that first hand.

I hope some of this is informative or perhaps I'm all wrong on this?

Keep your revs up!

Thanks Ed for your explanation!! Deeply appreciated!

[Ed NY]

You're welcome.

Don't be reluctant to jump on it in the proper setting, as long as you properly maintain your brakes. The turbo brakes are quite excellent.