991 GT2RS
#946
The 2RS will very likely stand up to a lot more hard use (eg track) than either of the other two, which is what it's made for. (Notwithstanding that any road car is a big compromise on a track)
675LTs chew through brakes for a start, and the 458 Speciale is also limited in the amount of hard use it can take, as is the 488. (2 hard laps and it's flagging with tyre heat etc) The GT3RS by contrast has all the years of GT dept. experience behind it, and the 2RS will be the same. (I'm getting a 488 in May and would be able to get a Speciale so no agenda - they are different types of car)
I know quite a lot of people who track cars such as these, and after being blown away by the performance of say a 675LT initially, the suitability of the 3RS to consistent (relativity...) inexpensive heavy use has come into its own over time.
675LTs chew through brakes for a start, and the 458 Speciale is also limited in the amount of hard use it can take, as is the 488. (2 hard laps and it's flagging with tyre heat etc) The GT3RS by contrast has all the years of GT dept. experience behind it, and the 2RS will be the same. (I'm getting a 488 in May and would be able to get a Speciale so no agenda - they are different types of car)
I know quite a lot of people who track cars such as these, and after being blown away by the performance of say a 675LT initially, the suitability of the 3RS to consistent (relativity...) inexpensive heavy use has come into its own over time.
The 991rs has been relatively easy on brakes because it's almost 200hp behind. the 2rs with 650-700hp will be a much better comparison of how the SGL coated rotors hold up compared to the brembo rotor as used on the Mclaren/Ferrrari. While I think the SGL rotor will last longer, it's also a heck of a lot more expensive so it'd better hold up much better too...
#947
While I definitely agree the 675 eats brakes (well all Mclarens ex P1 do), surely it's also a function of the fact it's a car with a ton of hp and relatively high weight.
The 991rs has been relatively easy on brakes because it's almost 200hp behind. the 2rs with 650-700hp will be a much better comparison of how the SGL coated rotors hold up compared to the brembo rotor as used on the Mclaren/Ferrrari. While I think the SGL rotor will last longer, it's also a heck of a lot more expensive so it'd better hold up much better too...
The 991rs has been relatively easy on brakes because it's almost 200hp behind. the 2rs with 650-700hp will be a much better comparison of how the SGL coated rotors hold up compared to the brembo rotor as used on the Mclaren/Ferrrari. While I think the SGL rotor will last longer, it's also a heck of a lot more expensive so it'd better hold up much better too...
However I disagree with the your comment above of high weight. The Mclarens due to their carbon tubs are by far the lightest cars we're talking about on this thread, so if they're still eating brakes compared to the GT2RS, then Mclaren has no excuse.
#948
Agree that brake use on the the GT2RS vs the 675LT/720S is a more fair comparison than GT3RS VS those same macs as the power and speeds will be fairly close of the GT2RS and the 675/720
However I disagree with the your comment above of high weight. The Mclarens due to their carbon tubs are by far the lightest cars we're talking about on this thread, so if they're still eating brakes compared to the GT2RS, then Mclaren has no excuse.
However I disagree with the your comment above of high weight. The Mclarens due to their carbon tubs are by far the lightest cars we're talking about on this thread, so if they're still eating brakes compared to the GT2RS, then Mclaren has no excuse.
Problem with the LTs ones though is that they have no ceramic coating on them. As such it does not take to long for the bonding agent to become weak and brake down, this causes the CF to fracture, then the Pad becomes course. Having said this they do perform in line with the maker guidance for track miles usage....
My friends that track LTs a lot UK refer to them as " Chocolate Discs"....lol
#949
LOL
I'm late to the GT2RS thread with the GT3RS spyshots and all...
Market cornered wouldn't pass FTC approval.
I'm late to the GT2RS thread with the GT3RS spyshots and all...
#950
Agree that brake use on the the GT2RS vs the 675LT/720S is a more fair comparison than GT3RS VS those same macs as the power and speeds will be fairly close of the GT2RS and the 675/720
However I disagree with the your comment above of high weight. The Mclarens due to their carbon tubs are by far the lightest cars we're talking about on this thread, so if they're still eating brakes compared to the GT2RS, then Mclaren has no excuse.
However I disagree with the your comment above of high weight. The Mclarens due to their carbon tubs are by far the lightest cars we're talking about on this thread, so if they're still eating brakes compared to the GT2RS, then Mclaren has no excuse.
#951
I actually prefer the peddle feel and modulation of the Lt brakes to that over the ones on the 91RS.
Problem with the LTs ones though is that they have no ceramic coating on them. As such it does not take to long for the bonding agent to become weak and brake down, this causes the CF to fracture, then the Pad becomes course. Having said this they do perform in line with the maker guidance for track miles usage....
My friends that track LTs a lot UK refer to them as " Chocolate Discs"....lol
Problem with the LTs ones though is that they have no ceramic coating on them. As such it does not take to long for the bonding agent to become weak and brake down, this causes the CF to fracture, then the Pad becomes course. Having said this they do perform in line with the maker guidance for track miles usage....
My friends that track LTs a lot UK refer to them as " Chocolate Discs"....lol
#952
Agree that brake use on the the GT2RS vs the 675LT/720S is a more fair comparison than GT3RS VS those same macs as the power and speeds will be fairly close of the GT2RS and the 675/720
However I disagree with the your comment above of high weight. The Mclarens due to their carbon tubs are by far the lightest cars we're talking about on this thread, so if they're still eating brakes compared to the GT2RS, then Mclaren has no excuse.
However I disagree with the your comment above of high weight. The Mclarens due to their carbon tubs are by far the lightest cars we're talking about on this thread, so if they're still eating brakes compared to the GT2RS, then Mclaren has no excuse.
#953
Koenigsegg are using ST rotors as well I think. And probably the Aston Red Bull car will as ST are supposed to be involved with that.
#954
The 720S is 2829 pounds, and the 675LT a few pounds lighter, and both are two of the lightest sports cars in this century. The only street legal "sports cars" that are lighter than the Mclarens are little roadsters with tiny engines (less than 200hp) like the miata.
So if considering actual sports cars in this century, most of which weigh around 3500lbs or more, the Mclaren 675LT and 720S at just over 2800lbs are both very light.
Last edited by Drifting; 03-29-2017 at 06:00 PM.
#955
I'm not sure if you're older and so just thinking about cars from the 60s or something with no airbags or side impact protection, etc ??? The definition of a light sports car has changed with modern mandated safety equipment.
The 720S is 2829 pounds, and the 675LT a few pounds lighter, and both are two of the lightest sports cars in this century. The only street legal "sports cars" that are lighter than the Mclarens are little roadsters with tiny engines (less than 200hp) like the miata.
So if considering actual sports cars in this century, most of which weigh around 3500lbs or more, the Mclaren 675LT and 720S at just over 2800lbs are both very light.
The 720S is 2829 pounds, and the 675LT a few pounds lighter, and both are two of the lightest sports cars in this century. The only street legal "sports cars" that are lighter than the Mclarens are little roadsters with tiny engines (less than 200hp) like the miata.
So if considering actual sports cars in this century, most of which weigh around 3500lbs or more, the Mclaren 675LT and 720S at just over 2800lbs are both very light.
I'd consider a exige v6 cup as a light car (1150kg with fuel) and yes I do realise there are very few cars that will fit my definition of a light sports car rather unfortunately....
#956
The 675 with fuel will be ~1390-1400kg fully fuelled in delivered customer spec. (2829lbs ie 1283kg for the 720 is for a dry weight). As I said, 100kg lighter than a 991RS or Speciale but not really 'light' imo.
I'd consider a exige v6 cup as a light car (1150kg with fuel) and yes I do realise there are very few cars that will fit my definition of a light sports car rather unfortunately....
I'd consider a exige v6 cup as a light car (1150kg with fuel) and yes I do realise there are very few cars that will fit my definition of a light sports car rather unfortunately....
I guess my concern is that you called the Mclaren "heavy" in a thread on the GT2RS, while we're comparing the GT2RS to the 488 and 720S, so by definition we are talking about cars with >650 horsepower. Engines that produce that much horsepower are always much heavier than the tiny engines in a Lotus. It's apples and oranges.
Not really fair to compare a 720S to a Lotus and then call the Mclaren heavy, when most Lotus cars have less than half the horsepower of the 720S. If you can put an engine producing over 650hp in a Lotus and still have a Lotus weighing less than 3000lbs, then you can start calling the Mclarens heavy.
#959
Dig those rear facing cannons. Good for seeing off pesky Maccas and Fiats.
Now we know what the intake vents on the MKII 3RS look like. Question remains purpose...
Is just me or do the side sills looker deeper?
Now we know what the intake vents on the MKII 3RS look like. Question remains purpose...
Is just me or do the side sills looker deeper?