Most Advanced Car Engine.
Discussion
As per thread topic, what is the most advanced road car engine in production today?
I figure that the engine from the LFA is a good one but what do you think?
Other engines can get a mention even if they arent from a car, why not.
I figure that the engine from the LFA is a good one but what do you think?
Other engines can get a mention even if they arent from a car, why not.
wikipedia said:
The Lexus LFA is powered by a 72-degree bank angle 4.8-liter V10 engine equipped with dual VVT-i carrying the 1LR-GUE designation with a maximum output of 412 kW (560 PS) delivered at 8,700 rpm. Its maximum torque output of 480 N·m (354 lb·ft) arrives at 6,800 rpm, 90 percent of which is available from 3,700 rpm. The engine redlines at 9,000 rpm, but with a fuel cutoff set at 9,500 rpm,[49] and is constructed using forged aluminum pistons, forged titanium connecting rods, and solid titanium valves. The V angle of the LFA's V-10 engine is set to 72-degrees (as opposed to the 90-degree V angle present in a Dodge Viper's V-10) to fully balance the firing force from the pistons. This 72-degree angle allows for even firing from the pistons without the use of a split-journal crankshaft, thus improving engine efficiency as well as lowering overall weight. Dry sump lubrication prevents engine oil starvation through high speed corners and lowers the engine's center of mass. Air is fed directly from beneath the hood through a visible slit passing into a dual stage variable intake manifold and then into ten individual throttle bodies before finally exiting from a dual stage titanium muffler.
The LFA's engineers selected a V10 engine over an equivalent displacement V8 engine for its ability to rev higher,[42] and over a V12 for its lower reciprocating mass,[10][42] allowing for more rapid engine response. Lexus claims their engine can rev from idle to its redline in 0.6 seconds and an analog tachometer needle could not accurately track the LFA's changes in engine speeds. This necessitated the use of a digital tachometer which can instantly display engine speed.[50] The engine reportedly weighs less than the manufacturer's own 3.5-liter 2GR-FE V6 engine. Engineers attempted to make the engine sound like that of a Formula One car with high revs, while at the same time maintaining reliability and vibration control. Along with other manufacturers such as Ferrari, Toyota had produced their own F1 engines and chassis designs.[9] The exhaust note has been described by Toyota engineers as the "roar of an angel",[51] and a US television spot later used the engine sound to shatter a champagne glass via resonance frequency.[52]
The powerplant gives the LFA a power-to-weight ratio of 5.9 lb/hp and enables it to reach a top speed of around 325 km/h (202 mph).[53] Like the IS F Yamaha co-developed the engine cylinder heads. The engine exceeds Euro V emissions. The engine is installed with a front mid-engine placement.[54] According to Chief Engineer Haruhiko Tanahashi a front engine layout was selected instead of a mid engine layout as it is inherently more forgiving dynamically, affording less experienced drivers a wider safety net.[55]
The LFA's engineers selected a V10 engine over an equivalent displacement V8 engine for its ability to rev higher,[42] and over a V12 for its lower reciprocating mass,[10][42] allowing for more rapid engine response. Lexus claims their engine can rev from idle to its redline in 0.6 seconds and an analog tachometer needle could not accurately track the LFA's changes in engine speeds. This necessitated the use of a digital tachometer which can instantly display engine speed.[50] The engine reportedly weighs less than the manufacturer's own 3.5-liter 2GR-FE V6 engine. Engineers attempted to make the engine sound like that of a Formula One car with high revs, while at the same time maintaining reliability and vibration control. Along with other manufacturers such as Ferrari, Toyota had produced their own F1 engines and chassis designs.[9] The exhaust note has been described by Toyota engineers as the "roar of an angel",[51] and a US television spot later used the engine sound to shatter a champagne glass via resonance frequency.[52]
The powerplant gives the LFA a power-to-weight ratio of 5.9 lb/hp and enables it to reach a top speed of around 325 km/h (202 mph).[53] Like the IS F Yamaha co-developed the engine cylinder heads. The engine exceeds Euro V emissions. The engine is installed with a front mid-engine placement.[54] According to Chief Engineer Haruhiko Tanahashi a front engine layout was selected instead of a mid engine layout as it is inherently more forgiving dynamically, affording less experienced drivers a wider safety net.[55]
Fiat Punto.
No, really.
This is the closest thing yet to entirely variable valve control for timing, lift and duration. Has the ability to run a crazy wild cam profile at high throttle & rpm but instantly switch to a mild, economy, drivability and emissions friendly profile as soon as you lift off.
Details HERE.
No, really.
This is the closest thing yet to entirely variable valve control for timing, lift and duration. Has the ability to run a crazy wild cam profile at high throttle & rpm but instantly switch to a mild, economy, drivability and emissions friendly profile as soon as you lift off.
Details HERE.
Steve H said:
Fiat Punto.
No, really.
This is the closest thing yet to entirely variable valve control for timing, lift and duration. Has the ability to run a crazy wild cam profile at high throttle & rpm but instantly switch to a mild, economy, drivability and emissions friendly profile as soon as you lift off.
Details HERE.
+1No, really.
This is the closest thing yet to entirely variable valve control for timing, lift and duration. Has the ability to run a crazy wild cam profile at high throttle & rpm but instantly switch to a mild, economy, drivability and emissions friendly profile as soon as you lift off.
Details HERE.
The LFA engine isn't what I would call advanced: a lot of people could make an engine that spectacular with a blank cheque. The engine is well designed but not especially ground breaking in my opinion, it's essentially just a 'normal' engine with the very most expensive components possible to make it rev it's nuts off and make s
t loads of power. Low reciprocating mass? Very quick changes in revs.And before someone says VTEC, I would like to disagree again, as an advanced engine should drive well at all revs.
Steve H said:
Fiat Punto.
No, really.
This is the closest thing yet to entirely variable valve control for timing, lift and duration. Has the ability to run a crazy wild cam profile at high throttle & rpm but instantly switch to a mild, economy, drivability and emissions friendly profile as soon as you lift off.
Details HERE.
I take it you mean the Multiair engine, rather than just a Fiat Punto lump. It's fitted to 500's, puntos, the new Panda & a range of Alfa'sNo, really.
This is the closest thing yet to entirely variable valve control for timing, lift and duration. Has the ability to run a crazy wild cam profile at high throttle & rpm but instantly switch to a mild, economy, drivability and emissions friendly profile as soon as you lift off.
Details HERE.
I read, at the time, that the M3 V8 was the most "advanced". What that meant was that the ECU did more calculations per second, and the tolerances were such that there wasn't much room for slack... and I hear it's a royal pain to LPG (there was a thread elsewhere).
But as others have said - what does "advanced" mean?
But as others have said - what does "advanced" mean?
Well, if we are looking at the most advanced then obviously the F1 engines must be cutting edge, but sorry, advanced doesn't square with the words reliability and longevity. I mean, they reckon an F1 engine loses 75bhp per race. so I look around for reports on engine failures to calculate the overall efficiency over a specific period of time. BMW turbos seem prone to failure, other makes have cam belt problems, and the more you look the more you seem to find inherent design faults. But I guess I'd go with the M series as up there with the best.
If we're going from the eco point of view... I think the TwinAir is a pretty awesome little engine too....
http://www.green-car-guide.com/fiat-500-twinair.ht...
Two cylinder turbo that manages 85BHP and is quite torquey and gives superb economy... would love to see what they're like!
http://www.green-car-guide.com/fiat-500-twinair.ht...
Two cylinder turbo that manages 85BHP and is quite torquey and gives superb economy... would love to see what they're like!
Chicane-UK said:
If we're going from the eco point of view... I think the TwinAir is a pretty awesome little engine too....
http://www.green-car-guide.com/fiat-500-twinair.ht...
Two cylinder turbo that manages 85BHP and is quite torquey and gives superb economy... would love to see what they're like!
Excapt in th ereal world they have crap economy. It's quite well documented on various forums, nobody gets anywhere near the claimed figures.http://www.green-car-guide.com/fiat-500-twinair.ht...
Two cylinder turbo that manages 85BHP and is quite torquey and gives superb economy... would love to see what they're like!
willisit said:
I read, at the time, that the M3 V8 was the most "advanced". What that meant was that the ECU did more calculations per second, and the tolerances were such that there wasn't much room for slack... and I hear it's a royal pain to LPG (there was a thread elsewhere).
But as others have said - what does "advanced" mean?
Done for Palmer Motorsport. Very difficult to get it working the first time around.But as others have said - what does "advanced" mean?
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