MayorAdamWest

You might be right. I only bring it up because it seems like the pace of improvement has slowed with the lap times. Porsche seems to have hit a wall at 7:20 for a GT car without a turbo. Either way, I'm pretty darn happy with my GT3 :-)

boostedt0y

I was at my local P-car dealer today getting my GT3 serviced. While I was there, I was chatting with the service manager about the 991 GT3 and he stated that Porsche is supposed to release a manual option for the 991.2 GT3.

tgavem

There was a study conducted in Germany that showed that 0.5L/ cylinder is the optimal size for hp, emission etc. This is why VW and Audi are going to 2.0/3.0/4.0 engines. My crystal ball tells me that at 3.0 inline 6 with turbo and/or electrical assist is most likely on Porsche cars of the future. The GT3 could be the unicorn but my crystal ball is not clear here.
4.0-8 will add weight and increase fuel consumption.

Just in time

I think it has been known for a while that larger pistons hit a wall ultimately. Remember when F1 cars had V8 engines with pistons the size of baby food jars? I have read sonewhere that many internally at Porsche see the current piston size of the flat six to be at a dead end. If I am correct the 4.0 flat six got there via longer stroke. If the GT3 is to remain normally aspirated I would think that a flat eight is the way to go.

MaxLTV

Or they can just add turbos and have 700 or even 800 hp with minimal R&D expense... Spend a tiny bit of R&D money, and it can be made as lag-less as NA engine. Hate to give them such ideas, but I'm sure they have thought of it.

I'd rather have them keep the engine relatively unchanged and get the car weight down to under 2500lbs via carbon fiber tub and other bits.

Just in time

Max I agree that from a dollars and cents perspective (cost wise) some kind of FI is the way to go. I just hope that PAG will see to retain a line of NA cars. That most likely could be very costly due to development of a new engine. I guess that what FIA/ACO ultimately decide with respect to GT3 rules will ultimately have a bearing on the direction Porsche will ultimately go. If FIA/ACO define GT3 as with FI motors then that will be the answer.

bronson7

MT in the next 3 and PTS on the current RS...wow what a night. One can only hope, let's just never give up boys.

GregJGT3

The Buzzwords for the FIA/ACO is a fuel economy. I suspect that looking at all of the entries at LaMans this year you will find most of them will be turbocharged or supercharged in the prototype groups. That is where engine development is going to achieve lightweight and horsepower. So I fear the GT3 is on the same track. Ford is planning on entering their new Ford GT in GT3 racing. Look at the engine in that particular car. Architecture for size and placement dictates smaller lighter engine capable of high horse power. All of the major manufacturers are in constant communication and discussion with the FIA/ACO on future engine and specification development. Those manufacturers know where things are going and will be planning a product placement accordingly.

Just in time

I wonder, if following Porsche practice of making subsequent same line models better performing than the predecessors, how can they make the 991.2 MT faster than the 991.1 PDK. BIG HP jump? Turbo?

Drifting

No way would a manual 991.2 GT3 be faster than a .1 PDK GT3, unless there is a much larger than usual increase in HP. The electronic diff, and some other components won't work with a manual.

However, it doesn't need to be faster. Just having a manual option will be enough. People overpaying for 997 GT3s lately didn't care that the care was slower than the 991 GT3. They just wanted a manual.

Drifting

I love my .1 GT3. I can't think of anything that would tempt me to order a .2 GT3, unless the 991.2 GT3 gets a 4.0 liter engine, with corresponding torque increase.

A typical Porsche modest hp for the .2 GT3 wouldn't interest me.

sccchiii

Next GT3 will have a version of the 4.0L in the RS for improved torque, with a HP rating between the current 475 and the RS's 500HP. Please keep it secret!

Drifting

Won't tell a soul..........

Seriously, I would get a .2 GT3 if they come with a 4.0L engine and I can do PTS.

bronson7

Now that would possibly make me want to order one.

Polesitter

True. 9A1 is nowhere as a Motorsports engine. It's a lost ball in the high weeds and nobody is looking for it. Mezger is old, expensive and heavy. (And fabulous)

Flat six is stretched on displacement at much beyond 4.0-4.2 liters. That leaves flat 8 (nobody will die upon the revelation) or forced induction. I would vastly prefer the former. And if forced to accept FI, would even prefer a supercharger to turbo, but that won't happen.

My bet is flat 8 somewhere down the line if we can avoid these stupid vacuum cleaners in the interest of fuel economy.