Are all AMG bi-turbo 4.0L engines created equal?
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2020 C63S Coupe
Are all AMG bi-turbo 4.0L engines created equal?
Does the long block of the 503 HP C63S have the same components as the bi-turbo 4.0L in the 550 HP AMG GTC or even the AMG GTR? Does Mercedes just de-tune this engine depending on what platform they put it in?
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C63s Cabriolet, BMW M4, Civic
From what I read, not much hp more but the short block are built with higher end materials.
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No, it doesn't. The various power levels have different turbos. Our variant has single scroll turbos and the higher output variants have twin scroll and larger turbos. Also specifically for the GT, the GT variants have a dry sump oil system to lower the center of gravity and keep the engine lubricated properly during high cornering forces. The base is the same, but the higher power levels are essentially achieved with different turbos and ECU tuning.
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Boost pressure is also different among some of the variants. In addition a dry sump reduces crank drag somewhat which allows the engine to rev more free and faster.
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2016 Cardinal Red AMG C63 S
[QUOTE=superswiss;7972127 the higher power levels are essentially achieved with different turbos and ECU tuning.[/QUOTE]
That's good enough for me to tell myself it's the same engine. Hell, I tell myself my car has the same engine as the Aston Martin Vantage at about half the price!
That's good enough for me to tell myself it's the same engine. Hell, I tell myself my car has the same engine as the Aston Martin Vantage at about half the price!
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C63S
I've just been reading that the C63 is putting out 9.5psi of boost? So the S is what, 11psi?
Surely a tune is a pretty safe bet on these cars?
On the subject of tuning. That vid on the of home page, Sandra's car was pushing 624hp, yet Litchfield only get 570, or 590 with the Akrapovich exhaust.... I'm thinking it's a bit of a minefield out there..
Surely a tune is a pretty safe bet on these cars?
On the subject of tuning. That vid on the of home page, Sandra's car was pushing 624hp, yet Litchfield only get 570, or 590 with the Akrapovich exhaust.... I'm thinking it's a bit of a minefield out there..
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C63S AMG Coupe
No, it doesn't. The various power levels have different turbos. Our variant has single scroll turbos and the higher output variants have twin scroll and larger turbos. Also specifically for the GT, the GT variants have a dry sump oil system to lower the center of gravity and keep the engine lubricated properly during high cornering forces. The base is the same, but the higher power levels are essentially achieved with different turbos and ECU tuning.
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2019 C63CS
Originally Posted by DRGG
I also read where compression values are different and different alloy in piston heads for example in the E63. Engines with higher output have stronger parts.
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E63S4S
The E63S is listed at 8.6:1 and gets larger twin scroll turbos
The C63S is listed at 10.5:1 and has smaller single scroll turbos
