Nov 19, 2007 8:34:21 PM
- Whoopsy
- Rennteam Moderator
- Loc: Vancouver,BC , Canada
- Posts: 16151, Gallery
- Registered on: Sep 19, 2006
- Reply to: Alex_997TT
Nov 19, 2007 8:34:21 PM
Nov 19, 2007 8:50:39 PM
Quote:
Alex_ said:Quote:
Turbo4ever said:Quote:
Crash said:Quote:
Alex_ said:Quote:
devo said:
Anyway, with either the power bumped 505 or pre-bumped 480, you'd get another 25 hp. Add that same exhaust to the newer car and you get 530, right?
Right, assuming that part of the new facelift power isn't from a sports exhaust.
The Cayenne facelifts with DI all generate about 4% more power through DI alone. If the same is true for the 911 engine then there's your 505bhp without having to do much else.
Exactly! And, assuming that the boost hasn't been increased, this would translate into basic mods reaching 570-580 bhp. That's some serious power.
whats the boost in the current car now?
Off the top of my head,
Turbo = 1.0 bar (only in Sports Mode)
GT2 = 1.4 bar
GT2 also has the added power from redesign of the turbocharger, new expansion intake system and maybe help from the new titanium sports exhaust too.
I expect Porsche won't add any of these until the 998 though as they need to keep something in reserve.
Nov 19, 2007 8:59:19 PM
Quote:
Turbo4ever said:Quote:
Alex_ said:Quote:
Turbo4ever said:Quote:
Crash said:Quote:
Alex_ said:Quote:
devo said:
Anyway, with either the power bumped 505 or pre-bumped 480, you'd get another 25 hp. Add that same exhaust to the newer car and you get 530, right?
Right, assuming that part of the new facelift power isn't from a sports exhaust.
The Cayenne facelifts with DI all generate about 4% more power through DI alone. If the same is true for the 911 engine then there's your 505bhp without having to do much else.
Exactly! And, assuming that the boost hasn't been increased, this would translate into basic mods reaching 570-580 bhp. That's some serious power.
whats the boost in the current car now?
Off the top of my head,
Turbo = 1.0 bar (only in Sports Mode)
GT2 = 1.4 bar
GT2 also has the added power from redesign of the turbocharger, new expansion intake system and maybe help from the new titanium sports exhaust too.
I expect Porsche won't add any of these until the 998 though as they need to keep something in reserve.
a little bit confusing...
1.4 bar plus all those bigger turbines, intake, exhuast, only 50 more hp?
Nov 19, 2007 9:24:13 PM
Nov 20, 2007 12:07:26 AM
Nov 20, 2007 12:12:51 AM
Quote:
atomic80 said:
When you see the little up arrow that's when the overboost hits and you'd get up to 1.2 bars.
Not sure why you never saw that. It's definitely there though. I've seen it countless times.
Quote:
Turbo Al said:
Guys, keep in mind that the 1.4bar max. in the GT2 is partly compensating for the expansion manifold intake cooling the air to mitigate thermal stresses to the variable geometry impeller-increasing the volume of a fixed quantity of a gas renders it less dense so increasing boost on the compressor side counteracts this to produce an equivalent power and torque output for a given air-fuel mixture. This means that 1.4bar boost with the GT2's intake setup brings back into the engine an equal amount of air (and fuel) as in the TT intake with its traditional resonance intake. Actually, Porsche advertises that this intake innovation is slightly more efficient for a given power output via the pre-ignition cooling effect-albeit negligibly so-the setup is designed primarily for thermal protection of the variable geometry impeller, not to placate the Greenpeace fruitloops.
Quote:
Turbo Al said:
Guys, keep in mind that the 1.4bar max. in the GT2 is partly compensating for the expansion manifold intake cooling the air to mitigate thermal stresses to the variable geometry impeller-increasing the volume of a fixed quantity of a gas renders it less dense so increasing boost on the compressor side counteracts this to produce an equivalent power and torque output for a given air-fuel mixture. This means that 1.4bar boost with the GT2's intake setup brings back into the engine an equal amount of air (and fuel) as in the TT intake with its traditional resonance intake. Actually, Porsche advertises that this intake innovation is slightly more efficient for a given power output via the pre-ignition cooling effect-albeit negligibly so-the setup is designed primarily for thermal protection of the variable geometry impeller, not to placate the Greenpeace fruitloops.
Quote:
andrea said:
From my source
Paris 2008
PDK 7 gears also with LSD
DFI
powerkit for current 997 turbo for next spring cancelled
Nov 21, 2007 2:26:09 PM
Nov 21, 2007 2:52:14 PM
Quote:
Marwan Arakji said:
I went through this whole thread, and thank God i am not a recent 997 TT owner... i'd feel very cheated... extra bhp, DFI, bigger rims, and PDK!!! all so soon after the launch!!! porsche is getting more and more unpredictable to me...
Nov 21, 2007 5:38:10 PM
Quote:
Marwan Arakji said:
I went through this whole thread, and thank God i am not a recent 997 TT owner... i'd feel very cheated... extra bhp, DFI, bigger rims, and PDK!!! all so soon after the launch!!! porsche is getting more and more unpredictable to me...
Nov 21, 2007 6:29:26 PM
Nov 21, 2007 6:34:29 PM
Nov 22, 2007 10:19:04 PM
Quote:
Alex_ said:
I am sure I never saw more than 1.0 bar on my track day with demo manual Turbo. I had it on mile straights, and high speed bowls for hours.
Without sport mode on I didn't see more than 0.7-0.8 bar.
Odd.
Nov 22, 2007 11:02:26 PM
Quote:
andrew34 said:Quote:
Alex_ said:
I am sure I never saw more than 1.0 bar on my track day with demo manual Turbo. I had it on mile straights, and high speed bowls for hours.
Without sport mode on I didn't see more than 0.7-0.8 bar.
Odd.
Alex, I think you'll find that if you put a tip in manual in 5th at 2-2,500 revs and floor it, you'll see 1.2 bar.
Btw, ever do any pcgb track days?
Nov 23, 2007 11:13:15 AM
Nov 23, 2007 3:49:17 PM
Quote:
Alex_ said:
I am sure I never saw more than 1.0 bar on my track day with demo manual Turbo. I had it on mile straights, and high speed bowls for hours.
Without sport mode on I didn't see more than 0.7-0.8 bar.
Odd.
Quote:
andrea said:
From my source
Paris 2008
PDK 7 gears also with LSD
DFI
powerkit for current 997 turbo for next spring cancelled
Quote:
RC said:Quote:
andrea said:
From my source
Paris 2008
PDK 7 gears also with LSD
DFI
powerkit for current 997 turbo for next spring cancelled
Confirmed by WHO?
Your information sounds nice but it actually contradicts pretty much what I heard from OUR sources.
Nov 23, 2007 5:01:39 PM
Quote:
RC said:Quote:
andrea said:
From my source
Paris 2008
PDK 7 gears also with LSD
DFI
powerkit for current 997 turbo for next spring cancelled
Confirmed by WHO?
Your information sounds nice but it actually contradicts pretty much what I heard from OUR sources.
Quote:
RC said:Quote:
andrea said:
From my source
Paris 2008
PDK 7 gears also with LSD
DFI
powerkit for current 997 turbo for next spring cancelled
Confirmed by WHO?
Your information sounds nice but it actually contradicts pretty much what I heard from OUR sources.
Nov 23, 2007 7:24:22 PM
Quote:
RC said:Quote:
andrea said:
From my source
Paris 2008
PDK 7 gears also with LSD
DFI
powerkit for current 997 turbo for next spring cancelled
Confirmed by WHO?
Your information sounds nice but it actually contradicts pretty much what I heard from OUR sources.
Nov 23, 2007 11:19:10 PM
Quote:
Turbo4ever said:Quote:
RC said:Quote:
andrea said:
From my source
Paris 2008
PDK 7 gears also with LSD
DFI
powerkit for current 997 turbo for next spring cancelled
Confirmed by WHO?
Your information sounds nice but it actually contradicts pretty much what I heard from OUR sources.
come on, lets give us some info.