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Re: AMG GT
KresoF1:
Better power to weight ratio then on your 991TS. Not good enough?
AWD? Rear passenger seats? No, not good enough.
Also, I don't really care about AMG weight to power ratio claims. Remember the SLS Black Series? 631 hp...2.6 kg/hp and still slower than the Turbo S. No worries here. 
Btw: Didn't you order a Turbo S? Have you changed your mind, going for the GT instead?
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RC (Germany) - Rennteam Editor Porsche 991 Turbo S, Porsche Boxster S (981), Jeep Grand Cherokee SRT (2014), BMW X3 35d (2013)
Re: AMG GT
Not Turbo S, normal Turbo. But, I will get AMG GT as well.
Official info in english about engine:
http://www.drive.com.au/motor-news/mercedesamg-gt-to-pack-375kw-20140612-zs4vo.html
http://www.pistonheads.com/news/default.asp?storyId=30143
Re: AMG GT
reginos:
Hi Kreso,
How do you intend to differentiate between these two cars in terms of usage? Summer-winter, travel-track etc.
It will be interesting to know as you must have studied the matter a lot.
Intend to sell 991 Turbo to my brother in summer 2015. I will have enough time to compare both of them in late spring 2015. AMG GT will be a keeper. For a very good reason...
Re: AMG GT
RC:
Lars997:
Cool.... really like it! That might be indeed a good successor for my 911 :)
Not if it costs the same.
Keep in mind that it has two seats only.
Yep - forgot about those two seats - might be a show-stopper!
Same price I wouldnt mind as I think the car has the same quality. BUT - the depreciation on a Porsche might be lower than on that Mercedes!
Re: AMG GT
KresoF1:
reginos:
Hi Kreso,
How do you intend to differentiate between these two cars in terms of usage? Summer-winter, travel-track etc.
It will be interesting to know as you must have studied the matter a lot.
Intend to sell 991 Turbo to my brother in summer 2015. I will have enough time to compare both of them in late spring 2015. AMG GT will be a keeper. For a very good reason..
A good brotherly arrangement 
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"Form follows function"
Re: AMG GT
It's interesting that this motor seems to be quite similar to taking two of the 2.0 4-cyl motors from the CLA45 on a common crankshaft (like the 944 and 928 of decades ago), but the 4-cyl makes 360hp and the V8 of double the displacement makes only 510hp. Seems like the 4-cyl had the far more aggressive spec - or maybe there is just much more headroom in the V8 for future tuning?
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73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550
Re: AMG GT
Whoopsy:
Double the cylinder count and displacement increases the engine's friction too.
No reason it would make more than double the friction (probably less that double, given only one crankshaft) - no reason it couldn't make twice the power in the same state of tune, unless there is insufficient strength in the crankcase or other component.
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73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550
Jun 13, 2014 7:08:29 PM
- Leawood911
- Rennteam VIP
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- Loc: Kansas, USA , United States
- Posts: 6920, Gallery
- Registered on: Aug 29, 2006
- Reply to: Grant
Re: AMG GT
Grant:
Whoopsy:
Double the cylinder count and displacement increases the engine's friction too.
No reason it would make more than double the friction (probably less that double, given only one crankshaft) - no reason it couldn't make twice the power in the same state of tune, unless there is insufficient strength in the crankcase or other component.
Simply due to the lower turbo boost. You are correct that with one crankshaft and equal boost the 8 will be more than double the 4. AND YES - DRY SUMP is a BIG DEAL! Great observation! This is why we do not see 991 GT3 engine in the CUP cars.
Re: AMG GT
Grant:
Whoopsy:
Double the cylinder count and displacement increases the engine's friction too.
No reason it would make more than double the friction (probably less that double, given only one crankshaft) - no reason it couldn't make twice the power in the same state of tune, unless there is insufficient strength in the crankcase or other component.
True it is only one crankshaft, but there will be doubled the piston rings scratching the cylinders plus almost doubled the moving mass with the extra 4 pistons, rods and stuff.
I think even in a ideal scenario with same boost pressure and intake profile and everything else equal the output would be slightly less than double output.
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Re: AMG GT
noone1:
Engine looks pretty cool. Still though, that shape is just meh. I could see this priced at $130K. Can't imagine paying anywhere near SLS prices for this though. Just too regular looking.
Look at it like this, maybe its a lower priced, smaller SLS with friendlier doors. I hope its as good as they say it is, but the shape does looks pretty tepid.
Jun 14, 2014 5:26:04 AM
- Grant
- Rennteam VIP
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- Loc: Denver, CO , United States
- Posts: 12586, Gallery
- Registered on: Aug 21, 2002
- Reply to: Leawood911
Re: AMG GT
Leawood911:
Grant:
Whoopsy:
Double the cylinder count and displacement increases the engine's friction too.
No reason it would make more than double the friction (probably less that double, given only one crankshaft) - no reason it couldn't make twice the power in the same state of tune, unless there is insufficient strength in the crankcase or other component.
Simply due to the lower turbo boost. You are correct that with one crankshaft and equal boost the 8 will be more than double the 4. AND YES - DRY SUMP is a BIG DEAL! Great observation! This is why we do not see 991 GT3 engine in the CUP cars.
I agree, but the 991 GT3 does have a real dry sump (only current Porsche besides 918 with one).
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73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550
Jun 16, 2014 9:17:37 AM
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huangester
- Co-Pilot
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- Loc: taiwan , Taiwan
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- Registered on: Mar 18, 2011
- Reply to: KresoF1
and I have a S8 sitting in the garage too. 
Re: AMG GT
99% of Porsches I see have 2 or less people in them. I agree with Kreso, it's a pretty dumb argument or complaint. If you need space, the GT probably has plenty of trunk space.
If you have a 911 and you use the back seats a lot, you bought the wrong car IMO. Plenty of cars with tons of performance and much more useful back seats.
Re: AMG GT
I bought 911 because it has 2+2 seats for occasional use. This is part of my criteria for this car. I don't see the 911 as a GT car - it's a sports car which is more practical than most of it's competition. Bentley make a GT car, as to BMW, Maserati, Ferrari and Aston. All of which have 2+2 seats. This does not. It is not comparable IMO.
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991 (what a car!) XC90 - 120 Cab - 2 kids, 1 dog
Re: AMG GT
I bought a lot of 911 because they had the back seats. At that time I had two small children. But if your children get older and taller - they don´t want to sit their. I doubt that for an occasional use adults could or would like to sit their.
I never used it for luggage.
One argument for the 2+2 seats sports car is for me the sense of space. I am not claustrophobic but I don´t like the space feeling in a Boxster or SLK. Ferrari solved it very good in the 599.
Like Kreso said, it is not a real argument against the AMG GT compared to a 911 that the GT lacks the two rear seats.
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