VGT turbo for 996TT -- Will it be possible ?
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VGT turbo for 996TT -- Will it be possible ?
Hi,
I was wondering if the VGT turbos system for the 996TT is under development somewhere among the tuners. Would it be possible to see such thing in the near future at an affordable price like stg2 options ?
Cheers
Bo
I was wondering if the VGT turbos system for the 996TT is under development somewhere among the tuners. Would it be possible to see such thing in the near future at an affordable price like stg2 options ?
Cheers
Bo
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my completely uneducated guess is that they're too many sensors that need to be monitored for the 996tt ecu if you plan to use 997tt vgt's. however, it's just a turbo, and if you ditch the sensors, there's no reason you couldn't put a vgt on a 996tt and tune it appropriately...
- chuck
- chuck
http://forums.rennlist.com/rennforum...1-post102.html
The grand finale;
Bringing the science into debate...
I was sitting on the plane the other day thinking about this topic and I remembered that years ago I was already bashing my head against the wall in a similar 996tt versus 997tt debate. So went looking back and here are some actual facts that still stand;
Nurburgring/Nordschleife times for stock 996tt versus 997.1tt (2000/2007, tested by sport auto, same driver; Horst von Saurma) were: 7.56 for the 996tt and 7.54 for the 997tt. STOCK 996TT NOT (S). And this is no average 2.4 mile race track but over 12.9 miles of a high speed race track where bhp advantage really counts! It is where 997tt with 60 bhp advantage and variable turbines and “redesigned everything” should have murdered the 996tt. Wait a minute only 2 seconds? (this is what I was saying about the techno babble versus the real world) This would relate to 997tt being 0.37 seconds faster on an average racetrack lap-time-wise than the STOCK 996tt.
Now to the OP; I told you initially that the cars are nearly identical in performance (meaning, there isn’t much between 996tts (X50) and 997tt and that X50 is nearly as fast as 997tt).
I AM SO SORRY, I WAS WRONG!
996tts lapped Nordschleife in 7.51. Granted by the German driver not by auto sport (so the opposition will now come back with; not the same driver, not on the same day, different conditions, bla bla, bla). But the fact is that 996tts lapped Nurburgring faster than the 997.1tt.
There, you go! To your original question; is x50 really as fast as 997tt, the answer is NO, IT IS FASTER!
Bringing the science into debate...
I was sitting on the plane the other day thinking about this topic and I remembered that years ago I was already bashing my head against the wall in a similar 996tt versus 997tt debate. So went looking back and here are some actual facts that still stand;
Nurburgring/Nordschleife times for stock 996tt versus 997.1tt (2000/2007, tested by sport auto, same driver; Horst von Saurma) were: 7.56 for the 996tt and 7.54 for the 997tt. STOCK 996TT NOT (S). And this is no average 2.4 mile race track but over 12.9 miles of a high speed race track where bhp advantage really counts! It is where 997tt with 60 bhp advantage and variable turbines and “redesigned everything” should have murdered the 996tt. Wait a minute only 2 seconds? (this is what I was saying about the techno babble versus the real world) This would relate to 997tt being 0.37 seconds faster on an average racetrack lap-time-wise than the STOCK 996tt.
Now to the OP; I told you initially that the cars are nearly identical in performance (meaning, there isn’t much between 996tts (X50) and 997tt and that X50 is nearly as fast as 997tt).
I AM SO SORRY, I WAS WRONG!
996tts lapped Nordschleife in 7.51. Granted by the German driver not by auto sport (so the opposition will now come back with; not the same driver, not on the same day, different conditions, bla bla, bla). But the fact is that 996tts lapped Nurburgring faster than the 997.1tt.
There, you go! To your original question; is x50 really as fast as 997tt, the answer is NO, IT IS FASTER!
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Subsrcibed. I've often wondered about this also. Looks like Tony has some good insight.
I am gathering info for potential work on my GT2, so it's nice to see what folks have to say on threads like this... helps to make a sound decision of remaining factory or doing upgrades.
I am gathering info for potential work on my GT2, so it's nice to see what folks have to say on threads like this... helps to make a sound decision of remaining factory or doing upgrades.
My PCA friends that went to SEMA said that Borg and Warner told them that they might possibly be coming out with a new style turbo based on there new line up early next year,that will fit our application on the 996 turbos?? Those are suppose to be *** kicking turbos from what I have read??..All we can do is wait and see......
There is a car in Houston with a modified VTG setup on a 996TT. It makes VERY good power and tq. The spool up is virtually instant. I'll bring this thread to his attention and see if he'd like to reveal more about his setup.
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But compared to our 65mm VTG's or standard 63.5mm upgraded VTG's....definitely, the A28's make more power.
Since we completed the car, it's been a totally different beast. It's the exact identical setup to KerCar (from Turkey) who ran 5.5 60-130...which was faster then any A28 so far.
If at all possible, I would like to see some comparison data between multiple vendors.
The key would be power under boost, I assume the VTG's would have a longer power band than Alpha's. However, I am just speculating / assuming.
I hope this doesn't turn into a huge argument, but seeing similar results from multiple sources would be nice.
Can we get some boost levels for comparison?
If at all possible, I would like to see some comparison data between multiple vendors.
The key would be power under boost, I assume the VTG's would have a longer power band than Alpha's. However, I am just speculating / assuming.
I hope this doesn't turn into a huge argument, but seeing similar results from multiple sources would be nice.
If at all possible, I would like to see some comparison data between multiple vendors.
The key would be power under boost, I assume the VTG's would have a longer power band than Alpha's. However, I am just speculating / assuming.
I hope this doesn't turn into a huge argument, but seeing similar results from multiple sources would be nice.
On a built engine, we'll got as high as 27-28psi, but it depends on the car.
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Also came across this post from a member on rennlist, here:
http://forums.rennlist.com/rennforum...1-post102.html
http://forums.rennlist.com/rennforum...1-post102.html
The 996 TT didn't run on MPSC either I don't think (as they weren't running MPSC on Turbo's yet) whereas the 997 TT did. Took me a while to accept that too. Porsche didn't step up, but down in handling on the 997 TT trying to make it handle more like a RWD car.
Equal hp and same tires? Spanky spank. (can I say that)
996 TT is a sleeper. And to think if Porsche had a run an official time with it, since they claim what was it 7:38 for the 997.1, the regular 996 TT would have feasibly done better with less hp not to mention TTS power or equal power.
I think the TTS went faster than the 996 GT3 therefore was omitted, they were just coming out with the first 996 GT3, they would not announce it as slower on the Ring and dampen sales.
