BruceP

A turbo is the one car that could tempt me to take a financial bath in my C2. It's not really the performance... I can hardly make use of what I've got. It's more of a sentimental thing. That engine is the final development of the original 911 flat 6. It really was the end of an era.

htny

+1000

ArneeA

I tried that. Without an LSD and still an open diff, removing the shaft to make the car RWD isn't "enough."

Eharrison

So first of all I hate you again.

Second, how much lag are you anticipating in the corners compared to NA 996's? Is it negligible? Maybe I should take a spin in a turbo....

Ahmet

Well, it wouldn't be fair to call the 996 turbo the end of that motor, aren't the current GT3s still derived from it?

gota911

The 997.1 Turbos (2005 - 2009) also have the dry sump engine used in the 996 Turbos.

The C2, C2S, C4, C4S and Targa got the new 9A1 engine in 2009 but the Turbo didn't convert to the new engine until 2010.

Van

In the turbo, it wasn't so much "lag" but the power delivery was much more like an of-off switch. (Again, this was a modified turbo, so I don't know how it compares to stock.)

In my 944, which is a laggy car, you step on the gas pedal mid-corner, and there's a moment of delay (lag) and then you feel t-u-r-B-O power - it's a progressive increase in power as the revs climb.

In the 996 TT, it was much more like: pressing the gas mid-corner was like flipping the switch that turned on the 2nd engine. Instantly, you felt like you had nearly twice the power you had a moment ago.

While my student was driving, it was semi-damp conditions the 1st session - the line was dry, but the rest of the track was damp. Anyhow, he'd get the passing signal, he'd pull off-line to pass, give the car a little throttle, and the wheels would spin. I was telling him, "no need to go full throttle, just ease on the gas to pass." Well, the joke was on me - when I drove the car, I realized he *was* easing the gas on!

Going back to how this felt in the corner, it meant you had to drive the right line in - because after you stepped on the gas, pure physics and trajectory was going to take over - if everything wasn't lined up, you're going to be off-track in a hurry!

But, when everything was lined up, and when the "afterburner" kicked in, corner exit was pure joy, with a gear shift coming faster than you can think as the car gobbled up the straight.

To summarize, I'd say there wasn't much lag, but I'd also say that the power delivery wasn't progressive. You know how in the NA cars, there's that little peppy spot as the variocam kicks in? Imagine that mid-acceleration power boost magnified by 10 (or maybe more!).

himself

This is why the TT doesn't pull (much) from GT3s on the track. The GT3 is on the throttle so much earlier in the corner that the Turbo's extra HP can't overcome the difference unless the straight is pretty long. Also, in the twisty bits where you hustle the car for short bursts, the TT doesn't have time to use it's forced induction advantage. [Also, you have to shift more in the TT due to its low redline].

It sounds about right that a highly modded TT pushing 600 HP would keep up with/pass a GT3, depending on the track. But I would still take the GT3 for the track. On the street, I might go with the TT. But probably not

-td

BruceP

Could just be a case of broken telephone, here, so sorry if that's the case, but.... the C2, C2S, C4, C4S and Targa never shared an engine with the Turbo. In other words, no Turbo has ever had an M96 based engine in it, AFAIK. So the question is, did any car after the last Turbo use the GT1 derived motor. My understanding is that when this engine was retired from Turbo duty in the last model year, that was it for the 'original' motor.

eggodynamics

Natural aspiration for the win. I love the turbo's don't get me wrong, but unless you run a hedge fund, which I obviously do not, it's just too damn expensive.

htny

The last turbo to use the m64/gt1 block was the 2009 997 turbo

the only cars currently using that engine are the gt3 / gt3rs (however it is no longer a 3.6, over to 3.8 now, and making as much as 450 bhp naturally aspirated)