7 spd MT with X51
03-24-2013, 07:22 PM
#16
Instructor
03-27-2013, 09:07 AM
#19
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Gents,
We have installed these "X51" heads on the current 9A1 motors for racing, found in all of the 2009 - 2012 cars. It brings a smile to my face to know that there are still true enthusiasts that will want a 991 with near-GT3 power but with a 7-speed manual transmission. Our business will depend on it!
A low option Carrera S lists for close to $100K and at $117K for the Power Kit, i think that's as far as it should go before it costs closer to the GT3; any further and the GT3 snobs will say "just get a GT3." Maybe a $120K price tag but that's nothing to scoff at when you are close to GT3 performance. The new GT3 is a true beast with most likely 500hp underrated at 475 and at $132K, it seems less overly priced than previous models. Nevertheless, we are Carrera people and not GT3 people here because we aren't allowed to race those cars in Grand-Am. We like the 911 that no one else does with its $4000 transmission and $14,000 engine replacement costs available at any dealer.
As for the nature of the heads, the "Power Kit's" power is all in the heads and comes from a better flowing, CNC ported head that has bigger ports; exhaust ports seem to have gotten the biggest bump over the intake ports but for the most part, it should take the existing 400/325 car to 430/330. It's an entire cylinderhead so it could possibly even have bigger valves. The cams are the same though supposedly, or at least were in the 2012 car. It's an entirely different, two piece cam shaft in the 991 engine from the 997.2 and that's most likely where the 325 torque from the factory comes as a base offering. That motor is STRONG and I would like to see a dyno comparison of a 2013 991 S vs. a 2012 Carrera GTS because they're probably very similar.
I have tracked our 991 C2S at Palm Beach International, Daytona and Barber and it's scary how close the car is in lap times to our existing race cars. This car has a ton of front end grip and you can actually get the 991 sideways on the street and on the track with the PSM switched off. The new 991 is pretty awesome and while the GT3 will be too, that Carrera S is a lot of car for the money. What you get in this car leaves youwanting less for a GT3 ESPECIALLY if you like to shift. I like to shift and PDK isn't legal in the Continental Tire Series in Grand-Am so we are currently homologating the 991 for 2013 racing in our series. Stay tuned...I hope to this car on TV racing live before the Cup car makes it to North America.
We have installed these "X51" heads on the current 9A1 motors for racing, found in all of the 2009 - 2012 cars. It brings a smile to my face to know that there are still true enthusiasts that will want a 991 with near-GT3 power but with a 7-speed manual transmission. Our business will depend on it!
A low option Carrera S lists for close to $100K and at $117K for the Power Kit, i think that's as far as it should go before it costs closer to the GT3; any further and the GT3 snobs will say "just get a GT3." Maybe a $120K price tag but that's nothing to scoff at when you are close to GT3 performance. The new GT3 is a true beast with most likely 500hp underrated at 475 and at $132K, it seems less overly priced than previous models. Nevertheless, we are Carrera people and not GT3 people here because we aren't allowed to race those cars in Grand-Am. We like the 911 that no one else does with its $4000 transmission and $14,000 engine replacement costs available at any dealer.
As for the nature of the heads, the "Power Kit's" power is all in the heads and comes from a better flowing, CNC ported head that has bigger ports; exhaust ports seem to have gotten the biggest bump over the intake ports but for the most part, it should take the existing 400/325 car to 430/330. It's an entire cylinderhead so it could possibly even have bigger valves. The cams are the same though supposedly, or at least were in the 2012 car. It's an entirely different, two piece cam shaft in the 991 engine from the 997.2 and that's most likely where the 325 torque from the factory comes as a base offering. That motor is STRONG and I would like to see a dyno comparison of a 2013 991 S vs. a 2012 Carrera GTS because they're probably very similar.
I have tracked our 991 C2S at Palm Beach International, Daytona and Barber and it's scary how close the car is in lap times to our existing race cars. This car has a ton of front end grip and you can actually get the 991 sideways on the street and on the track with the PSM switched off. The new 991 is pretty awesome and while the GT3 will be too, that Carrera S is a lot of car for the money. What you get in this car leaves youwanting less for a GT3 ESPECIALLY if you like to shift. I like to shift and PDK isn't legal in the Continental Tire Series in Grand-Am so we are currently homologating the 991 for 2013 racing in our series. Stay tuned...I hope to this car on TV racing live before the Cup car makes it to North America.
03-27-2013, 12:58 PM
#21
The faster the car, the longer they want you to spend getting used to it by driving it slow. Except for race cars. Those are different.
03-29-2013, 11:53 AM
#22
I too had the choice to wait till the GT3 but I am one that believes all street sports cars should have 3 pedals.. I cried myself to sleep the day it was fact that the GT3 would only be PDK.. luckily I had ordered a MY13 with M/T and X51 and NO PDCC.. will be ripping it through the streets of Europe in a month or so and I will happily report my experience..
03-30-2013, 02:20 PM
#23
Rennlist Member
Thread Starter
Gents,
We have installed these "X51" heads on the current 9A1 motors for racing, found in all of the 2009 - 2012 cars. It brings a smile to my face to know that there are still true enthusiasts that will want a 991 with near-GT3 power but with a 7-speed manual transmission. Our business will depend on it!
A low option Carrera S lists for close to $100K and at $117K for the Power Kit, i think that's as far as it should go before it costs closer to the GT3; any further and the GT3 snobs will say "just get a GT3." Maybe a $120K price tag but that's nothing to scoff at when you are close to GT3 performance. The new GT3 is a true beast with most likely 500hp underrated at 475 and at $132K, it seems less overly priced than previous models. Nevertheless, we are Carrera people and not GT3 people here because we aren't allowed to race those cars in Grand-Am. We like the 911 that no one else does with its $4000 transmission and $14,000 engine replacement costs available at any dealer.
As for the nature of the heads, the "Power Kit's" power is all in the heads and comes from a better flowing, CNC ported head that has bigger ports; exhaust ports seem to have gotten the biggest bump over the intake ports but for the most part, it should take the existing 400/325 car to 430/330. It's an entire cylinderhead so it could possibly even have bigger valves. The cams are the same though supposedly, or at least were in the 2012 car. It's an entirely different, two piece cam shaft in the 991 engine from the 997.2 and that's most likely where the 325 torque from the factory comes as a base offering. That motor is STRONG and I would like to see a dyno comparison of a 2013 991 S vs. a 2012 Carrera GTS because they're probably very similar.
I have tracked our 991 C2S at Palm Beach International, Daytona and Barber and it's scary how close the car is in lap times to our existing race cars. This car has a ton of front end grip and you can actually get the 991 sideways on the street and on the track with the PSM switched off. The new 991 is pretty awesome and while the GT3 will be too, that Carrera S is a lot of car for the money. What you get in this car leaves youwanting less for a GT3 ESPECIALLY if you like to shift. I like to shift and PDK isn't legal in the Continental Tire Series in Grand-Am so we are currently homologating the 991 for 2013 racing in our series. Stay tuned...I hope to this car on TV racing live before the Cup car makes it to North America.
We have installed these "X51" heads on the current 9A1 motors for racing, found in all of the 2009 - 2012 cars. It brings a smile to my face to know that there are still true enthusiasts that will want a 991 with near-GT3 power but with a 7-speed manual transmission. Our business will depend on it!
A low option Carrera S lists for close to $100K and at $117K for the Power Kit, i think that's as far as it should go before it costs closer to the GT3; any further and the GT3 snobs will say "just get a GT3." Maybe a $120K price tag but that's nothing to scoff at when you are close to GT3 performance. The new GT3 is a true beast with most likely 500hp underrated at 475 and at $132K, it seems less overly priced than previous models. Nevertheless, we are Carrera people and not GT3 people here because we aren't allowed to race those cars in Grand-Am. We like the 911 that no one else does with its $4000 transmission and $14,000 engine replacement costs available at any dealer.
As for the nature of the heads, the "Power Kit's" power is all in the heads and comes from a better flowing, CNC ported head that has bigger ports; exhaust ports seem to have gotten the biggest bump over the intake ports but for the most part, it should take the existing 400/325 car to 430/330. It's an entire cylinderhead so it could possibly even have bigger valves. The cams are the same though supposedly, or at least were in the 2012 car. It's an entirely different, two piece cam shaft in the 991 engine from the 997.2 and that's most likely where the 325 torque from the factory comes as a base offering. That motor is STRONG and I would like to see a dyno comparison of a 2013 991 S vs. a 2012 Carrera GTS because they're probably very similar.
I have tracked our 991 C2S at Palm Beach International, Daytona and Barber and it's scary how close the car is in lap times to our existing race cars. This car has a ton of front end grip and you can actually get the 991 sideways on the street and on the track with the PSM switched off. The new 991 is pretty awesome and while the GT3 will be too, that Carrera S is a lot of car for the money. What you get in this car leaves youwanting less for a GT3 ESPECIALLY if you like to shift. I like to shift and PDK isn't legal in the Continental Tire Series in Grand-Am so we are currently homologating the 991 for 2013 racing in our series. Stay tuned...I hope to this car on TV racing live before the Cup car makes it to North America.
Jim
03-31-2013, 02:46 PM
#24
