Consolidated 991RS thread
01-16-2015, 08:00 PM
#3406
Three Wheelin'
01-16-2015, 08:12 PM
#3407
Race Director
That connects the dots nicely. The 9A1 showed up in 2009, and Porsche has been in the habit of doing a engine evolution every 6 years recently (1997 M96 > M97 > 9A1). 2015 is right on schedule for a new design, and we know it'll see improvements in terms of weight and efficiency.
A conspiracy theorist could conjecture that the publicity from the engine fires was so catastrophic that Porsche felt the need to distance themselves completely from the GT3's 9A1 to avoid the inevitable jokes, etc. The new engine development and testing would have been underway across a range of displacements and power outputs for years already. Thus a 1 year delay may have been sufficient to switch the RS motor from using the planned 9A1 over to the new standard, presumably simply modifying the heads, etc already developed and tested for the GT3 RS as it was originally intended. Much of the work would have been done on the engine test benches, but the swap would have necessitated running at the 'Ring, etc to be sure, which explains the extra running the car's done over the last year after the design should have been frozen.
I don't know, but it fits nicely enough that my money is now on a non 9A1 base architecture. Which would make the GT3 the last of the 9A1s...
A conspiracy theorist could conjecture that the publicity from the engine fires was so catastrophic that Porsche felt the need to distance themselves completely from the GT3's 9A1 to avoid the inevitable jokes, etc. The new engine development and testing would have been underway across a range of displacements and power outputs for years already. Thus a 1 year delay may have been sufficient to switch the RS motor from using the planned 9A1 over to the new standard, presumably simply modifying the heads, etc already developed and tested for the GT3 RS as it was originally intended. Much of the work would have been done on the engine test benches, but the swap would have necessitated running at the 'Ring, etc to be sure, which explains the extra running the car's done over the last year after the design should have been frozen.
I don't know, but it fits nicely enough that my money is now on a non 9A1 base architecture. Which would make the GT3 the last of the 9A1s...
Last edited by Mike in CA; 01-17-2015 at 12:29 AM.
01-16-2015, 09:26 PM
#3408
Rennlist Member
01-16-2015, 10:45 PM
#3409
Nordschleife Master
Is that the PTS "Birch Green" she has on?
01-16-2015, 11:37 PM
#3413
Burning Brakes
01-16-2015, 11:41 PM
#3414
Rennlist Member
01-17-2015, 12:25 AM
#3415
Rennlist Member
I'm all tingly, how will I sleep till Geneva? Easy, they are done with the 9A1, the GT3 was the last hoorra. Everything after the GT3 will be the new engine. Maybe they decided this before they were really sure what was wrong with the GT3 engine, or the board yelled at someone and threw some good money after bad to get it fixed in a hurry and said "never again, start over"
01-17-2015, 12:34 AM
#3416
Nordschleife Master
And they developed a new engine for the RS in 8 months, including design, fabrication and testing?...I don't think so. If it is not based on the 991 GT 3 motor, it was planned long before the fire fiasco. C'mon now, motor development takes more time than that, especially for a car like the RS. If they truly switched gears last February I wouldn't touch that car with a ten foot pole. Porsche is either considering the 4.0L 9A1 a "new" motor due to displacement and not being a Mezger, or they have been developing the motor alongside the 9a1 motor long before the first GT3s were delivered. The Fires would have nothing to do with it.
Makes a lot of sense to me.
01-17-2015, 12:34 AM
#3417
01-17-2015, 12:35 AM
#3418
Rennlist Member
01-17-2015, 12:54 AM
#3420
Ok, now what other wild speculation can we entertain ourselves with? Anyone else heard this RS will come with 5-lugs, or perhaps optional back seats???
