Abarth
(Punto Evo Esseesse)
The BMW M550d Engine is Beautifully Engineered
Compound-triple-turbo diesel wizardry - 3 liters outputting 546lb-ft
“Six-cylinder in-line diesel engine with M Performance TwinPower Turbo technology, aluminium crankcase, three turbochargers (high-pressure, with variable turbine geometry), common-rail direct injection with piezo injectors, maximum injection pressure: 2,200 bar.
Displacement: 2,993 cc,
output: 280 kW/381 hp at 4,000 — 4,400 rpm,
max. torque: 740 Nm (546 lb-ft) at 2,000 — 3 000 rpm,
specific output: 93.6 kW/127.3 hp per litre of displacement.
Acceleration [0 — 100 km/h (62 mph)]: 4.7 seconds,
top speed: 250 km/h (155 mph),
average fuel consumption: 6.3 litres/100 kilometres (44.8 mpg imp),
CO2 emissions: 165 g/km, exhaust standard: EU6.”Video: Animations explaining X550d engine and turbo operation
Yes?
BMW S63 sans block/head castings
BMW say the S63Tu in the new M5 is rated at 560hp. However, it is probably much closer to 600hp.
Why?
The non-Tu (technical update) S63 in the X5M and X6M is rated at 555hp, and runs 17psi of boost and a 9.3:1 compression ratio. The S63Tu motor runs 22psi of boost and a 10:1 compression ratio, employs a Valvetronic system instead of throttle bodies, and has much larger intercoolers.
A 5hp gain for 5psi more boost, almost a point of compression, less intake restriction and cooler intake temperatures? I think not. Try 50+hp.
-B.E.
Mazda Furai powerplant
572
super-charged engine porn
engine porn
Nitrous motor
M Power
Best of January round-up. Click through to see original post and full-sized images.
At #4, the Bertone Mantide
at #3, the beautiful Jaguar CX concept
at #2, my own photo of the wall of sound at the BMW Museum in Munich
and finally at #1, the Lexus LF-LC concept
Thanks for a great first month of 2012.
LS7 in a C1 Corvette
The BMW S85 is Beautifully Engineered
Very possibly the highest output N/A road-going engine BMW will ever make.
The S85B50 is a high-revving engine designed to utilize power from a wide rev band. Having a redline of 8250 rpm, it achieves over 100 bhp (70 kW)/litre which is an incredible feat for a naturally aspirated production engine, as other manufacturers have used supercharging or turbocharging to reach a similar output level. The S85 features a very high compression ratio of 12.0:1, exceeding the previous S54’s ratio of 11.5:1
- 5.0 Litre V10 engine, 90 degree bank angle, 507 hp (378 kW) @ 7750rpm/520 N·m (384 lb·ft) torque @ 6100rpm
- Cast aluminum block with bed plate design split at the crankshaft axis.
- Cast aluminum heads with four valves per cylinder and CNC machined ports and combustion chambers. Valves are actuated through non-rotating inverted bucked cam followers.
- Oil-cooled, forged aluminum pistons from Mahle Motorsport
- Forged steel crankshaft with counterweights, shared crankpins producing an uneven firing interval of 90 or 54 degrees.
- Double VANOS system which varies both intake and exhaust cam phasing
- 10 individual electronically controlled throttle butterflies
- Knock sensors have been eliminated by utilizing the “ionic current” measuring system. Using the ionic current system, engine misfires as well as knock can be measured simultaneously. The ionic current is measured by passing a low voltage across the spark plugs immediately following the ignition spark.
- Quasi-dry sump lubricating system
- The firing order for the S85 engine is 1-6-5-10-2-7-3-8-4-9.
These guys came to a career fair I organized for German companies at my University. They also make the pistons for the Audi R18, several NASCAR teams, F1 teams, and Ferrari factory racers. Good times.
Mahle pistons l M10
