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Thread: Mercedes AMG GT3

  1. #1
    WMD Member miagi's Avatar
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    Mercedes AMG GT3

    A thread to talk about our new baby.

    I did some tests and some quick laps around Hockenheim GP.
    By default the car has stiffer springs on the front than rear, but about the same damping rates. What suggests that the damping ratio is higher on the rear than on the front if I'm not mistaken. But on track it was rather the rear that felt underdamped in such a constalation.

    I already nearly tried everything I could think of, but I'm still not happy with the rear axle. When it starts sliding it gives a small margin to save the slide before it spins out. Unfortunately with just a bit too much correction the car goes quickly into a heavy tank slapper and I spin the other way around. I have slightly improved that behaviour but the rear axle still feels nervous to me, esp. for a GT3 car.

    1:37.0 so far on Hockenheim GP, not that slow compared with the other GT3 cars but would be a beast to tackle for a longer race.

    I let you guys play around with it a bit before I post my first public setup ^^
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  2. #2
    WMD Member M4MKey's Avatar
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    Haven't drove it yet. Still I took a look at some figures. This car has the smallest restrictor on the GT3 field ( i'm not including GTE cars ). It develops 535 horsepower at sea level. but as the altitude rise, it's the car that loose the most : 520 hp at Monza ( 120m alt. 2,8% loss ) and 465hp at Bathurst ( 650m alt. 13,08% loss ).
    Intel i7 4770K o/c @ 3.9Ghz | Gigabyte 1080ti Xtreme | 16Go DDR3 17000 // TS-PC Racer with fanatec ClubSports Pedals

  3. #3
    WMD Member Jussi Viljami Karjalainen's Avatar
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    Quote Originally Posted by miagi View Post
    A thread to talk about our new baby.

    I did some tests and some quick laps around Hockenheim GP.
    By default the car has stiffer springs on the front than rear, but about the same damping rates. What suggests that the damping ratio is higher on the rear than on the front if I'm not mistaken. But on track it was rather the rear that felt underdamped in such a constalation.
    There's a distinct possibility that the car has separate motion ratios for dampers and springs either at the front or the rear.

    We'll know more when Casey posts the necessary specs and we can calculate it out, but before that we can only shoot in the dark.
    CPU: Intel i7 2600K @ 4,6 GHz | GPU: Gigabyte GTX 770 4GB Windforce 3 | MOBO: ASUS P8P67 Pro | RAM: 4 x 4GB Kingston HyperX DDR3 1600 | Sound: ASUS Xonar U7 | PSU: NZXT HALE90 650W 80+ Gold | OS: Win8 x64 | Wheel: Thrustmaster T500 RS GT wheel/pedals, Logitech G25 shifter | Monitor: 2x23" IPS-LCD 1920x1080 60Hz & 42" 1920x1080 60Hz | SpeedTest | PingTest | PingTest to UK
    Sim history: IndyCar Racing I & II, F1GP2, Grand Prix Legends, Sports Car GT, Richard Burns Rally, GT Legends, Race/GT-R Evolution/Race On/etc., RaceRoom Racing Experience, SimRaceWay, Live For Speed, netKar Pro, Assetto Corsa, rFactor 1 & 2, among others...

    My road car OEM style setups (updated occasionally when I find new info) over at P.CARS Setups Database

    My Suspension Calculator spreadsheet for Project CARS v1.3.5.2 - Updated on 16.10.2016!

    Suspension Calculator now available on the P.CARS Setups Database website!

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    The following user likes this Post: miagi


  4. #4
    WMD Member Jussi Viljami Karjalainen's Avatar
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    Quote Originally Posted by M4MKey View Post
    Haven't drove it yet. Still I took a look at some figures. This car has the smallest restrictor on the GT3 field ( i'm not including GTE cars ). It develops 535 horsepower at sea level. but as the altitude rise, it's the car that loose the most : 520 hp at Monza ( 120m alt. 2,8% loss ) and 465hp at Bathurst ( 650m alt. 13,08% loss ).
    The power drop is about the same from the Test Track to Nürburgring GP as with the SLS (in %), which is on the high side overall, together with the GTE cars.
    CPU: Intel i7 2600K @ 4,6 GHz | GPU: Gigabyte GTX 770 4GB Windforce 3 | MOBO: ASUS P8P67 Pro | RAM: 4 x 4GB Kingston HyperX DDR3 1600 | Sound: ASUS Xonar U7 | PSU: NZXT HALE90 650W 80+ Gold | OS: Win8 x64 | Wheel: Thrustmaster T500 RS GT wheel/pedals, Logitech G25 shifter | Monitor: 2x23" IPS-LCD 1920x1080 60Hz & 42" 1920x1080 60Hz | SpeedTest | PingTest | PingTest to UK
    Sim history: IndyCar Racing I & II, F1GP2, Grand Prix Legends, Sports Car GT, Richard Burns Rally, GT Legends, Race/GT-R Evolution/Race On/etc., RaceRoom Racing Experience, SimRaceWay, Live For Speed, netKar Pro, Assetto Corsa, rFactor 1 & 2, among others...

    My road car OEM style setups (updated occasionally when I find new info) over at P.CARS Setups Database

    My Suspension Calculator spreadsheet for Project CARS v1.3.5.2 - Updated on 16.10.2016!

    Suspension Calculator now available on the P.CARS Setups Database website!

    Next Gen = More Biscuit!

  5. #5
    WMD Member M4MKey's Avatar
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    it's a little bit more Jussi, as the SLS has bigger restrictor. (37mm).
    Intel i7 4770K o/c @ 3.9Ghz | Gigabyte 1080ti Xtreme | 16Go DDR3 17000 // TS-PC Racer with fanatec ClubSports Pedals

  6. #6
    WMD Member Jussi Viljami Karjalainen's Avatar
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    Quote Originally Posted by M4MKey View Post
    it's a little bit more Jussi, as the SLS has bigger restrictor. (37mm).
    Yes, it's a bit more, about half a percent. Not bad at all.
    CPU: Intel i7 2600K @ 4,6 GHz | GPU: Gigabyte GTX 770 4GB Windforce 3 | MOBO: ASUS P8P67 Pro | RAM: 4 x 4GB Kingston HyperX DDR3 1600 | Sound: ASUS Xonar U7 | PSU: NZXT HALE90 650W 80+ Gold | OS: Win8 x64 | Wheel: Thrustmaster T500 RS GT wheel/pedals, Logitech G25 shifter | Monitor: 2x23" IPS-LCD 1920x1080 60Hz & 42" 1920x1080 60Hz | SpeedTest | PingTest | PingTest to UK
    Sim history: IndyCar Racing I & II, F1GP2, Grand Prix Legends, Sports Car GT, Richard Burns Rally, GT Legends, Race/GT-R Evolution/Race On/etc., RaceRoom Racing Experience, SimRaceWay, Live For Speed, netKar Pro, Assetto Corsa, rFactor 1 & 2, among others...

    My road car OEM style setups (updated occasionally when I find new info) over at P.CARS Setups Database

    My Suspension Calculator spreadsheet for Project CARS v1.3.5.2 - Updated on 16.10.2016!

    Suspension Calculator now available on the P.CARS Setups Database website!

    Next Gen = More Biscuit!

  7. #7
    Superkart Pilot Shadowoff's Avatar
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    I can drive the AMG way better than the SLS. Already down to 2.15 at Spa and 6.42 at Nordschleife. Little setup trick. Turn rear ride as high as possible and front as low as possible. Car isnt unstable anymore and you can go down to 0/3 down force
    I'm sorry for my bad english...

  8. #8
    WMD Member Invincible's Avatar
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    Quote Originally Posted by Shadowoff View Post
    I can drive the AMG way better than the SLS. Already down to 2.15 at Spa and 6.42 at Nordschleife. Little setup trick. Turn rear ride as high as possible and front as low as possible. Car isnt unstable anymore and you can go down to 0/3 down force
    I have to try this later as I suffered a bit from lift off oversteer in fast corners.
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  9. #9
    WMD Member Jussi Viljami Karjalainen's Avatar
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    I tried it quickly on Nürburgring GP, I didn't really have any issues with the stability of the car but something didn't jive and I found it difficult to get any speed out of it within those few laps, barely got below 1:57 (whereas for example the new Caddy and Vette I got down to 1:55.3 very quickly). I don't know, just something about it that isn't working for me yet.
    CPU: Intel i7 2600K @ 4,6 GHz | GPU: Gigabyte GTX 770 4GB Windforce 3 | MOBO: ASUS P8P67 Pro | RAM: 4 x 4GB Kingston HyperX DDR3 1600 | Sound: ASUS Xonar U7 | PSU: NZXT HALE90 650W 80+ Gold | OS: Win8 x64 | Wheel: Thrustmaster T500 RS GT wheel/pedals, Logitech G25 shifter | Monitor: 2x23" IPS-LCD 1920x1080 60Hz & 42" 1920x1080 60Hz | SpeedTest | PingTest | PingTest to UK
    Sim history: IndyCar Racing I & II, F1GP2, Grand Prix Legends, Sports Car GT, Richard Burns Rally, GT Legends, Race/GT-R Evolution/Race On/etc., RaceRoom Racing Experience, SimRaceWay, Live For Speed, netKar Pro, Assetto Corsa, rFactor 1 & 2, among others...

    My road car OEM style setups (updated occasionally when I find new info) over at P.CARS Setups Database

    My Suspension Calculator spreadsheet for Project CARS v1.3.5.2 - Updated on 16.10.2016!

    Suspension Calculator now available on the P.CARS Setups Database website!

    Next Gen = More Biscuit!

  10. #10
    Superkart Pilot Shadowoff's Avatar
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    Quote Originally Posted by Jussi Karjalainen View Post
    I tried it quickly on Nürburgring GP, I didn't really have any issues with the stability of the car but something didn't jive and I found it difficult to get any speed out of it within those few laps, barely got below 1:57 (whereas for example the new Caddy and Vette I got down to 1:55.3 very quickly). I don't know, just something about it that isn't working for me yet.
    At Spa is the AMG quite unstabil through Eau Rouge and Blanchimont.
    I'm sorry for my bad english...

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