Tuned 991 Turbo vs Turbo S???
04-29-2016, 07:40 PM
#16
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I race my clubby in the PCA trophy east.
I leave it with BGB in Daytona and they crew the car for me at each race.
I live in the mountains of B.C, so it is a little more travel time for me to get to the races. But it is only 6 events a year so it works out for my schedule
It is a fantastic series!
04-29-2016, 10:56 PM
#17
Rennlist Member
RE: '14 (incl '15 & '16) Turbo v TURBO S
Excellence Magazine article - 12/13 issue (pp 62) interview w/August Achleitner, director of 911 product line - stated that the 991 thicker piston crowns compared to the 997 Turbo were changed in the 991 Turbo to withstand "greater combustion pressure" w/no change in in the 9.8:1 compression ratio.
Additionally goes on to say the '14 Turbo S motor is mechanically unchanged from the base Turbo, relying purely on an ECU software remap for its extra power & torque.
Excellence Magazine article - 12/13 issue (pp 62) interview w/August Achleitner, director of 911 product line - stated that the 991 thicker piston crowns compared to the 997 Turbo were changed in the 991 Turbo to withstand "greater combustion pressure" w/no change in in the 9.8:1 compression ratio.
Additionally goes on to say the '14 Turbo S motor is mechanically unchanged from the base Turbo, relying purely on an ECU software remap for its extra power & torque.
05-01-2016, 10:34 PM
#18
Also, tuning the stock Turbo won't fix the lower red-line of the transmission's different ecu shift points.
Last edited by speed21; 05-02-2016 at 11:07 PM.
05-02-2016, 11:06 PM
#20
I'm sure raising the limiter is do-able but what do you do about reprogramming the PDK's ecu? No point raising the red if the box won't match up....which is basically what I meant to begin with.
The differences between the 2 is hardly news but here's another extract from http://gtspirit.com/2013/08/24/road-...turbo-turbo-s/
After a few laps in which we continue to gain the confidence required to brake later and carry more speed through the corners, we pull into the pits to change into the Turbo S. Besides the ceramic brakes, the Turbo S also packs 40 hp more over the Turbo we were driving. The acceleration becomes more brutal, making the gap with any Turbo behind us bigger after every straight. The ceramic brakes grip equally brutal allowing for even later braking and faster lap times.
The differences between the 2 is hardly news but here's another extract from http://gtspirit.com/2013/08/24/road-...turbo-turbo-s/
After a few laps in which we continue to gain the confidence required to brake later and carry more speed through the corners, we pull into the pits to change into the Turbo S. Besides the ceramic brakes, the Turbo S also packs 40 hp more over the Turbo we were driving. The acceleration becomes more brutal, making the gap with any Turbo behind us bigger after every straight. The ceramic brakes grip equally brutal allowing for even later braking and faster lap times.
Last edited by speed21; 05-02-2016 at 11:54 PM.