991.2 Carrera T on the Dyno
12-26-2018, 09:18 PM
#1
Rennlist Member
Thread Starter
991.2 Carrera T on the Dyno
These guys tested a Carrera T on the dyno. While I don’t speak Portuguese, what they’re saying is that Porsche rates the Carrera T at 370HP from the factory. As we know, Porsche has a tendency to understate horsepower ratings. The baseline pull on a car equipped with the PDK transmission yielded 355HP at the rear wheels. If we assume a typical 15% drive train loss, then the Carrera T is actually making 418HP. And look at they torque curve, comes on early and flat all the way across the rev band.
As a comparison 991.2 Carrera S puts down around 380HP at the wheels factory stock.
Here’s a link if you want to watch and translate the Carrera T dyno run:
As a comparison 991.2 Carrera S puts down around 380HP at the wheels factory stock.
Here’s a link if you want to watch and translate the Carrera T dyno run:
12-26-2018, 09:41 PM
#2
Rennlist Member
Cobb got 367 at the wheels with with base engine and 403 for the S. Different dyno obviously. Roughly 36 hp difference at the wheels (a little bigger delta than you cited above of 25). The S engine has a bigger TQ advantage down low.
I couldnt really tell a big difference between an manual S and my T. However, the GTS drives different and feels more top end powerful (maybe because the S power delivery is more linear like the base)
https://www.cobbtuning.com/porsche-9...ssport-tuning/
I couldnt really tell a big difference between an manual S and my T. However, the GTS drives different and feels more top end powerful (maybe because the S power delivery is more linear like the base)
https://www.cobbtuning.com/porsche-9...ssport-tuning/
12-26-2018, 11:14 PM
#5
Nice!
From my understanding, the Carrera T has slightly different gearing, which results in a better power figures compared to a standard C2. Forgot the exact difference, but I think it's slightly longer gear ratios in the middle...
C2S is more or less a C2 with a tune. In straight line speed, Carrera T with a tune should outperform both a tuned C2 and a C2S.
GTS with it's larger turbo got the powah up top....that said, the base with the smaller snails spools up quickly and is a peach!
Hard to estimate the true drive train loss....that said, I can say that Porsche underrates the motors by a healthy percentage.
From my understanding, the Carrera T has slightly different gearing, which results in a better power figures compared to a standard C2. Forgot the exact difference, but I think it's slightly longer gear ratios in the middle...
C2S is more or less a C2 with a tune. In straight line speed, Carrera T with a tune should outperform both a tuned C2 and a C2S.
GTS with it's larger turbo got the powah up top....that said, the base with the smaller snails spools up quickly and is a peach!
Hard to estimate the true drive train loss....that said, I can say that Porsche underrates the motors by a healthy percentage.
12-26-2018, 11:21 PM
#6
Rennlist Member
T and S have same shorter gear ratios due to the final drive. Base is different.
12-26-2018, 11:29 PM
#7
Nice!
From my understanding, the Carrera T has slightly different gearing, which results in a better power figures compared to a standard C2. Forgot the exact difference, but I think it's slightly longer gear ratios in the middle...
C2S is more or less a C2 with a tune. In straight line speed, Carrera T with a tune should outperform both a tuned C2 and a C2S.
GTS with it's larger turbo got the powah up top....that said, the base with the smaller snails spools up quickly and is a peach!
Hard to estimate the true drive train loss....that said, I can say that Porsche underrates the motors by a healthy percentage.
From my understanding, the Carrera T has slightly different gearing, which results in a better power figures compared to a standard C2. Forgot the exact difference, but I think it's slightly longer gear ratios in the middle...
C2S is more or less a C2 with a tune. In straight line speed, Carrera T with a tune should outperform both a tuned C2 and a C2S.
GTS with it's larger turbo got the powah up top....that said, the base with the smaller snails spools up quickly and is a peach!
Hard to estimate the true drive train loss....that said, I can say that Porsche underrates the motors by a healthy percentage.
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12-26-2018, 11:44 PM
#8
T and C2 have same size Turbos and are rated at 370 HP. The T simply toutes some weight reduction and less insulation. The C2S has larger turbos and I think a higher psi to give it an additional 50 HP. The GTS has larger turbos than an S. The hiarchy of power is maintained across the range with the same tune.
That said, the T has shorter gear ratios which help get the power down quicker.
12-26-2018, 11:51 PM
#9
12-27-2018, 01:19 AM
#10
What is the weight difference T vs S with similar options?
12-27-2018, 01:59 AM
#11
No fans for the ICs. So.... IATs were probably skyrocketing at the ends of the pulls.
12-27-2018, 02:01 AM
#12
Rennlist Member
33 lb.
3142 (T) vs 3175 (S). However, only 11 lb less than C2 at 3153 (which doesnt had the diff, chrono, PSE, or 20s as standard). Bigger difference if u get the carbon buckets, prolly 70 lb lighter than an S. Can u feel it?? Nope. Trust me. For me, the bigger difference is the glass / sound deadening removal - and RAS. Those are worth the price of admission. They did all sorts of BS for "weight" like the straps, ability to not option the wart, and apparently sneaky stuff like static mounts (instead of PADM) and no memory buttons. All of those things add a "cool" factor but probably annoying for some at the end of the day. The overall character grows on me more and more every day,...
All things considered, the 992 CS with PDK as standard is 3382 lb (240 lb heavier). Thats like having a big dude in your car. I could definitely tell the difference then. Figure about 150 lb heavier with the manual.
3142 (T) vs 3175 (S). However, only 11 lb less than C2 at 3153 (which doesnt had the diff, chrono, PSE, or 20s as standard). Bigger difference if u get the carbon buckets, prolly 70 lb lighter than an S. Can u feel it?? Nope. Trust me. For me, the bigger difference is the glass / sound deadening removal - and RAS. Those are worth the price of admission. They did all sorts of BS for "weight" like the straps, ability to not option the wart, and apparently sneaky stuff like static mounts (instead of PADM) and no memory buttons. All of those things add a "cool" factor but probably annoying for some at the end of the day. The overall character grows on me more and more every day,...
All things considered, the 992 CS with PDK as standard is 3382 lb (240 lb heavier). Thats like having a big dude in your car. I could definitely tell the difference then. Figure about 150 lb heavier with the manual.
12-27-2018, 05:21 AM
#13
Porsche don't under rate their engines - see various publications to this effect. 
. You're just seeing results from a "happy dyno" or over correction etc etc.
If you look at the Car and Driver Trap times you will see the C PDK, CT PDK and CT manual trap at 118MPH, the CS PDK at 123MPH and the CGTS PDK at 125MPH. Consistent with their HP ratings and the difference in stated HP between the three engines (or roughly 10HP per second, also note the 365HP Cayman GTS - PDK traps at 118MPH, 991.1 GT3 ~ 126MPH, 991.2 127MPH and for reference the McLaren 720S ~ 141.5MPH).
. You're just seeing results from a "happy dyno" or over correction etc etc.If you look at the Car and Driver Trap times you will see the C PDK, CT PDK and CT manual trap at 118MPH, the CS PDK at 123MPH and the CGTS PDK at 125MPH. Consistent with their HP ratings and the difference in stated HP between the three engines (or roughly 10HP per second, also note the 365HP Cayman GTS - PDK traps at 118MPH, 991.1 GT3 ~ 126MPH, 991.2 127MPH and for reference the McLaren 720S ~ 141.5MPH).
Last edited by groundhog; 12-27-2018 at 06:28 AM.
12-27-2018, 06:32 PM
#14
Three Wheelin'
Porsche don't under rate their engines - see various publications to this effect. . You're just seeing results from a "happy dyno" or over correction etc etc.
If you look at the Car and Driver Trap times you will see the C PDK, CT PDK and CT manual trap at 118MPH, the CS PDK at 123MPH and the CGTS PDK at 125MPH. Consistent with their HP ratings and the difference in stated HP between the three engines (or roughly 10HP per second, also note the 365HP Cayman GTS - PDK traps at 118MPH, 991.1 GT3 ~ 126MPH, 991.2 127MPH and for reference the McLaren 720S ~ 141.5MPH).
. You're just seeing results from a "happy dyno" or over correction etc etc.If you look at the Car and Driver Trap times you will see the C PDK, CT PDK and CT manual trap at 118MPH, the CS PDK at 123MPH and the CGTS PDK at 125MPH. Consistent with their HP ratings and the difference in stated HP between the three engines (or roughly 10HP per second, also note the 365HP Cayman GTS - PDK traps at 118MPH, 991.1 GT3 ~ 126MPH, 991.2 127MPH and for reference the McLaren 720S ~ 141.5MPH).
12-27-2018, 07:07 PM
#15
*Mexico