Power Kit
Banned
Joined: Jan 2013
Posts: 26,140
Likes: 5,464
From: Chicagoland Area
Originally Posted by kuma1416
With the Powerkit, is the engine identical to that of the GTS? (Not just in terms of output, but in all components?)
Banned
Joined: Sep 2003
Posts: 703
Likes: 7
From: Laguna, CA
The Carrera and S are stuck with smaller turbos. The GTS and Power Kit give you more headroom. It's K16 vs. K24 all over again.
Banned
Joined: Sep 2003
Posts: 703
Likes: 7
From: Laguna, CA
Regardless, the Carrera, S, and GTS all have the same potential. Some of us will opt for turbos larger than those of the GTS/Power Kit and make some real power...
Rennlist Member
Joined: Mar 2014
Posts: 4,883
Likes: 1,413
From: SW Florida
I'm a former 4 time owner of Porsche TT's, the real daddy Pcar. Gains from software Tunes are real and the HP gains are amazing. The quoted gains from exhausts only are pure BS. Do you get, on some exhausts better breathing, yes, but 30 real HP and torque, not on the TT's. Software combined with exhaust the gains are real.
Us NA guys have to squeak out a few HP here and there but we do have a motor we can wind out to redline and a beautiful symphony.
Us NA guys have to squeak out a few HP here and there but we do have a motor we can wind out to redline and a beautiful symphony.
Rennlist Member
Joined: Aug 2010
Posts: 3,019
Likes: 398
I'm a former 4 time owner of Porsche TT's, the real daddy Pcar. Gains from software Tunes are real and the HP gains are amazing. The quoted gains from exhausts only are pure BS. Do you get, on some exhausts better breathing, yes, but 30 real HP and torque, not on the TT's. Software combined with exhaust the gains are real.
Us NA guys have to squeak out a few HP here and there but we do have a motor we can wind out to redline and a beautiful symphony.
Us NA guys have to squeak out a few HP here and there but we do have a motor we can wind out to redline and a beautiful symphony.
J
Rennlist Member
Joined: Oct 2007
Posts: 4,110
Likes: 1,193
From: ...PA...
200 cell cats thru less restrictive muffler on a turbo car is good for about 20-30 realistic HP yes, but its almost all in the cats. A tune with that would be good for an additional 75 HP conservatively. So yes, the tune makes the difference, but the exhaust on a turbo car does do more than NA. NA exhaust headers back is normally only good for 3-5 hp and you can actually lower the torque in low RPM from doing that at times.
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Race Car
Joined: Mar 2013
Posts: 4,424
Likes: 737
From: Northern Virginia
Well, not exactly identical on the 991.1...
To develop the Powerkit, a number of sophisticated measures were needed . The cylinder head intake ports have been reworked and given a polished finish. The stroke of the intake camshaft has been increased and the electronic engine management adapted accordingly.
The highlight of the Carrera S Powerkit is the newly developed variable resonance intake manifold with six plus one switchable valves. This innovation enables the system to switch between power- and torque-optimized geometries and deliver a boost in power output, particularly in the upper speed range. The extra heat generated by power increase is dissipated by an additional center radiator.
The highlight of the Carrera S Powerkit is the newly developed variable resonance intake manifold with six plus one switchable valves. This innovation enables the system to switch between power- and torque-optimized geometries and deliver a boost in power output, particularly in the upper speed range. The extra heat generated by power increase is dissipated by an additional center radiator.
- modified cylinder heads and camshafts
- newly developed variable resonance intake system featuring 6 plus 1 switchable valves
- center radiator
- Optional Sport Exhaust System with specially designed dual twin-tube tailpipes
- revised engine control unit including new engine compartment styling with a titanium colored cover and carbon inserts
Race Car
Joined: Mar 2013
Posts: 4,424
Likes: 737
From: Northern Virginia
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Joined: Nov 2006
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From: Fort Washington, Pa
STG, you know were talking 991.2 here right? I know all you 991.1 guys are sort of hand cuffed with the N/A motor for additional power but Looks like 32 hp according to Fabspeeds dyno chart on the .2S model. Most other manufactures are claiming similar gains with a full exhaust. I think I'll spend the $7K on an exhaust and Cobb tune and have a 3 times the power gain.
I'm a former 4 time owner of Porsche TT's, the real daddy Pcar. Gains from software Tunes are real and the HP gains are amazing. The quoted gains from exhausts only are pure BS. Do you get, on some exhausts better breathing, yes, but 30 real HP and torque, not on the TT's. Software combined with exhaust the gains are real.
Us NA guys have to squeak out a few HP here and there but we do have a motor we can wind out to redline and a beautiful symphony.
Us NA guys have to squeak out a few HP here and there but we do have a motor we can wind out to redline and a beautiful symphony.
200 cell cats thru less restrictive muffler on a turbo car is good for about 20-30 realistic HP yes, but its almost all in the cats. A tune with that would be good for an additional 75 HP conservatively. So yes, the tune makes the difference, but the exhaust on a turbo car does do more than NA. NA exhaust headers back is normally only good for 3-5 hp and you can actually lower the torque in low RPM from doing that at times.
On the S models the majority of the factory exhaust restriction is above 4k rpm and found in the factory headers and catalytic converters. From 4k rpm on it is a noticeable improvement in performance when equipped with our Sport Headers/Sport Cats, as shown in the graph below.
In regards to the 991.2 Base, we tested a Non-PSE with our full performance package installed (Sport Headers, Sport Cats, X-Pipe) and saw some pretty significant gains as well. The Base model exhaust system didn't see quite the peak gains of the S PSE, but you can see it saw some benefit even lower down in the curve.
__________________
Porsche Performance Specialist
John@Fabspeed.com
215-618-9796
Fabspeed Motorsport USA
155 Commerce Drive Fort Washington, PA 19034
www.Fabspeed.com
Porsche Performance Specialist
John@Fabspeed.com
215-618-9796
Fabspeed Motorsport USA
155 Commerce Drive Fort Washington, PA 19034
www.Fabspeed.com
Three Wheelin'
Joined: May 2015
Posts: 1,638
Likes: 45
From: Colorado
I'm not surprised by the gains of exhaust (tune) on the new .2 cars.
Back in the day (2005ish) I achieved similar gains (30-50hp) on a much smaller 2.0 flat four from a WRX. Modifying a turbo yields much higher HP per dollar- this is transparent across all brands.
Back in the day (2005ish) I achieved similar gains (30-50hp) on a much smaller 2.0 flat four from a WRX. Modifying a turbo yields much higher HP per dollar- this is transparent across all brands.
Racer
Joined: Sep 2003
Posts: 307
Likes: 66
From: New England
It's nice to get feedback from a few folks that actually have experience with exhausts and/or tuning on turbo cars. Evidently some of us know little more than what's posted or passed along on the 'forum' about how these cars work.
Thread Starter
Intermediate
Joined: Mar 2017
Posts: 26
Likes: 0
2000 miles complete
It took a few days but I finished the break-in process. The car is amazing/perfect/etc... Zero problems. ACC is better than expected. Voice control for Nav is the best I've used. I haven't fully explored the power - but I've got time.
Time to do something about the dead bugs and brake dust!
(Yes my center gauge is black - on purpose)
Time to do something about the dead bugs and brake dust!
(Yes my center gauge is black - on purpose)