Originally Posted by Adrift

I would be stunned if +80HP were the new rs paradigm, unless this is the last purely ice 3rs.

Originally Posted by 993RR

Is that even possible with the 4.0 engine for a road car?

Originally Posted by greatfox315

oooh, can I play?

Originally Posted by Whoopsy

If one only put away the bias that the 911 is the top dog and 'should' be faster.......

911, with the rear engine layout, takes time to get used to, and is rewarding once one get the hang of it. Doesn't means it's the best layout for going fast, but it is what most Porsche owners are used to.

The Cayman/Boxster had always been the 2nd class citizen in the line up, handicapped engine output, handicapped gearbox, etc. It was never given a fair fight.

The GT4RS is the closest thing to a 'fair fight' against a 911. Same engine as a GT3, with a bespoke gearbox. Tire sizes are still a compromise but at least it's close enough for people to compare mid engine vs rear engine sort of fairly.

Having driven almost every single model Porsche made, which includes all generations of 911s, all generations of Cayman/Boxster, same with Macans, Cayennes, Panamera, Taycan, 924, 944, 968, 928, CGT and 918. Only road cars I haven't is the GT1, 959, 356s, 550 Spyder and the 914 ( never will, completely not interested in the ugliest Porsche ever and it's not even a proper Porsche, but that's another long topic for some other time). I really think the GT4RS is the best from Porsche up to this point in time, yes, even better than the 992 GT3, just because of the mid engine layout and much much better gearing. 992 GT3 is just simply over rated and the GT4RS under rated.

If I were to only be able to keep 3 Porsches ever. #1 would be the 918, there will never be another more complex car made, technology tour de force. A 911 turbo S, any generation, as they are the pinnacle of all around sports car of their respective generations, and the 3rd car might as well be the GT4RS, alternative would be a 959, or a GT1. That's how highly I think of the GT4RS.

Originally Posted by GrantG

Not NA. If the new RS makes 550 PS, I would expect 4.2L (like the RSR)…

Im pretty sure a 4.2L is coming, but not sure if it will be reserved for some limited edition model rather than the GT3 RS.

Originally Posted by Whoopsy

At 550ps, and 4L, that's about 138ps/litre, not far off a Ferrari Speciale engine at 134ps, the old 918 engine is top dog in the Porsche stable at 132ps. Could be doable with some work.

Going to 4.2L drops it down to 131ps, easily doable.

Originally Posted by jmartpr

What do you think it would be...4.0 or 4.2L?
At 550 hp that's a big boost over the GT3.....even at 530 is still a nice bump.
A 4.2 would also help on the torque department.
I'm waiting t see how much of an upgrade they do on the engine and then decide when 992.2 comes around.....

Originally Posted by Whoopsy

At 550ps, and 4L, that's about 138ps/litre, not far off a Ferrari Speciale engine at 134ps, the old 918 engine is top dog in the Porsche stable at 132ps. Could be doable with some work.

Going to 4.2L drops it down to 131ps, easily doable.

Originally Posted by GrantG

Yep, any of that is possible for 550ps (but 4.2L more likely). But the original question was about adding 80ps to the GT3 with a 4.0L (for 590ps) and that is not gonna happen, imo…

Originally Posted by jmartpr

What do you think it would be...4.0 or 4.2L?
At 550 hp that's a big boost over the GT3.....even at 530 is still a nice bump.
A 4.2 would also help on the torque department.
I'm waiting t see how much of an upgrade they do on the engine and then decide when 992.2 comes around.....

Originally Posted by Whoopsy

Agreed. Jumping 80ps is not realistic at all in a NA engine, I mean it 'could' be done, but are clients willing to pay sky high prices because of the extensive use of exotic materials?

Even with a 4.2 doing 590ps, that's over 140ps per L. Pushing it.

Originally Posted by thuggo

I disagree look at the retarded prices people are paying for markups on the GT3......People will pay for the exotic materials. Especially if this is likely to be the one of the last generations of NA RS.

Originally Posted by GrantG

I don’t think it’s possible within any reasonable limits. The Gordon Murray V12 can do it, because it can rev higher with its cylinders being half the size (same 4.0L with 12 cylinders).

Originally Posted by ExMB

Double the cylinders usually means that cylinder speed is down compared to an engine with half that amount. Variance here of course will be rpm.