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Old 08-22-2011, 06:15 PM   #1
AVANTI R5
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Default Ford Revives the Three-Cylinder Engine in a Quest for Fuel Efficiency



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Carmakers have spent the past few years aggressively downsizing engines throughout their lineups to meet increasingly tight fuel-economy regulations. But with the sole exception of the three-cylinder Smart Fortwo, four cylinders is as low as carmakers have expected Americans to go.

Three-cylinders are common in Europe but have been scorned in the U.S., where they’re tainted by association with claptrap cars like the mousy Geo Metro. Now, with fuel-economy standards set to rise as high as 56.2 mph by 2025, Ford is planning to bring the three-cylinder to the American mainstream.

Ford’s 1.0-liter engine,the latest in the company’s cylinder slashing EcoBoost series, will be smaller than the average Harley motor, but with the help of turbocharging and direct injection, it should match the horsepower and torque of a typical 1.6-liter four-cylinder. For an easy comparison, Ford’s 2011 Fiesta hatchback wrings 119 horsepower and 40 highway mpg from its 1.6-liter four-cylinder. Drop a turbocharged 1.0-liter in a similar-size car, and you can expect 45 or 46 mpg—within spitting distance of the most frugal hybrids.

Brett Hinds, a Ford engine-design manager, says the forthcoming three-cylinder will produce more than 100 horsepower per liter, blowing past a longtime engine-efficiency benchmark.

Such efficiency is the result of many small technical victories. Unlike conventional engines, the new EcoBoost will use an offset crankshaft, which reduces friction and puts more energy into creating motion and loses less to heat. A split-cooling system warms the engine block quickly, making it easier for the engine to pump cold, thick oil, thereby using 1 to 2 percent less fuel. Higher-quality aluminum alloy in the exhaust manifold helps to trim 11 pounds from the engine. And unlike some three-cylinder engines, which require an energysapping balance shaft to counter shake and rattle, Ford says the EcoBoost is inherently balanced.

Ford has withheld most details, but it has said that the engine will eventually replace four-cylinders in millions of small models around the world. Expect other carmakers to follow suit.
http://www.popsci.com/cars/article/2...uel-efficiency
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Old 08-22-2011, 06:28 PM   #2
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new daily here i come.
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Old 08-22-2011, 06:28 PM   #3
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Well it looks better than a Geo Metro.
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Old 09-15-2011, 10:27 AM   #4
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http://www.autoblog.com/2011/09/12/f...the-euro-spec/

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The new EcoBoost engine will be available in the Ford Focus, C-Max and B-Max, and it will be available in 99 horsepower and 118 hp variants. A respectable 125 pound-feet of torque is available from a scant 1,300 rpm thanks to a turbocharger that can spool up to 250,000 revolutions per minute. Ford was able to extract so much power out of such a small, boosted engine thanks to improved twin variable camshaft design and an exhaust manifold cast that is cast into the cylinder head. And get this: While other EcoBoost offerings start with an aluminum block, the 1.0-liter includes an iron engine block, which isn't only cheaper, it reduces engine warmup time by 50 percent.

The key benefits sought from engine downsizing, of course, are improved fuel economy and lowered emissions. In this scenario, Ford promises 120 g/km C02, which works out to right around 45.5 miles per gallon (U.S.) on the European cycle. That 120 g/km figure, in case you're wondering, is identical to the much smaller Scion iQ, which gets a 36 city / 37 highway EPA rating. The diminutive engine will be fitted with five-speed and six-speed manual transmissions.
Subaru needs to catch up. Subaru's eco engine 1.6L 114hp and 110lb-ft/4000rpm. Ford turbocharged DI 1.0L 118hp and 125lb-ft/1300-4500rpm.
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Old 09-15-2011, 05:12 PM   #5
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Aluminum exaust manifold? cool........er hot well you know what I mean
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Old 09-16-2011, 09:52 PM   #6
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Originally Posted by Finwrx View Post
http://www.autoblog.com/2011/09/12/f...the-euro-spec/



Subaru needs to catch up. Subaru's eco engine 1.6L 114hp and 110lb-ft/4000rpm. Ford turbocharged DI 1.0L 118hp and 125lb-ft/1300-4500rpm.
Uhh....is that Subaru motor turbocharged?
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Old 09-17-2011, 12:50 AM   #7
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why do we still refuse to introduce diesel engines into the US???? 40 MPG hwy is not that impressive, we all know that the econoboxes of the 80's and early 90's did that. Averaging in the 30's in real world driving is good but damn - we could see big improvements in economy with diesels and if they are using turbos and DI to achieve the MPG goals the cost difference between a these motors and a small displacement diesel should be negligible. [/rant]
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Old 09-17-2011, 08:24 PM   #8
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why do we still refuse to introduce diesel engines into the US???? 40 MPG hwy is not that impressive, we all know that the econoboxes of the 80's and early 90's did that. Averaging in the 30's in real world driving is good but damn - we could see big improvements in economy with diesels and if they are using turbos and DI to achieve the MPG goals the cost difference between a these motors and a small displacement diesel should be negligible. [/rant]
Because the increased efficiency is partially offset by the greater cost of the diesel model, and partly by the greater cost of fuel. Diesel is taxed at a much higher rate to be a de-facto tax on truckers. Until that changes, they will be a fringe vehicle.
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Old 09-17-2011, 08:35 PM   #9
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Because the increased efficiency is partially offset by the greater cost of the diesel model, and partly by the greater cost of fuel. Diesel is taxed at a much higher rate to be a de-facto tax on truckers. Until that changes, they will be a fringe vehicle.
the cost of a turbocharged DI gas motor and a turbo diesel are close enough to call it a wash. As for the fuel, you are correct that the price difference in the US is due to taxation but the efficiency improvements justify the cost difference easily.
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Old 09-17-2011, 11:18 PM   #10
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Brett Hinds, a Ford engine-design manager, says the forthcoming three-cylinder will produce more than 100 horsepower per liter, blowing past a longtime engine-efficiency benchmark.
Doesn't the STI have like 122hp / litre? Not much of a benchmark.
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Old 09-18-2011, 12:05 PM   #11
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Doesn't the STI have like 122hp / litre? Not much of a benchmark.
it's a good benchmark for naturally aspirated cars but not so much for boosted.
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Old 09-18-2011, 02:43 PM   #12
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it's a good benchmark for naturally aspirated cars but not so much for boosted.
good point.
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Old 09-18-2011, 02:53 PM   #13
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I want a high-milage small car for around town so bad. Nothing out there really yet though...may end up with an all-eletric if someone cannot make something soon.
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Old 09-18-2011, 03:33 PM   #14
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Glad to see Ford stepping up to the plate and delivering more efficient engines that are also leading the way by using the most up to date technology without cutting corners.
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Old 09-18-2011, 05:01 PM   #15
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Originally Posted by BOY View Post
the cost of a turbocharged DI gas motor and a turbo diesel are close enough to call it a wash. As for the fuel, you are correct that the price difference in the US is due to taxation but the efficiency improvements justify the cost difference easily.
The base auto TDI golf costs $26k and gets 42 mpg. The base auto Hyundai Elantra costs $18,500 and gets 40 mpg. Why would I ever get the Golf?
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Old 09-18-2011, 07:42 PM   #16
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The base auto TDI golf costs $26k and gets 42 mpg. The base auto Hyundai Elantra costs $18,500 and gets 40 mpg. Why would I ever get the Golf?
comparing a base elantra to a "base" TDI is silly. I mean, a base impreza is $18, why would anyone want a 3 series .

The base golf TDI come far better equipped but, you're right, that doesn't make up the gap... some people have preferences. Now, if you compare the elantra touring (only 21/31) to the Golf and it's a no brainer. Plus, the equipment on the Golf is still far better.
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Old 09-18-2011, 09:05 PM   #17
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I want a high-milage small car for around town so bad. Nothing out there really yet though...may end up with an all-eletric if someone cannot make something soon.
Scion iQ. 36mpg city, 37mpg highway. Unless you go for a hybrid, you won't see those sort of city numbers anywhere else.
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Old 09-18-2011, 09:21 PM   #18
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comparing a base elantra to a "base" TDI is silly. I mean, a base impreza is $18, why would anyone want a 3 series .

The base golf TDI come far better equipped but, you're right, that doesn't make up the gap... some people have preferences. Now, if you compare the elantra touring (only 21/31) to the Golf and it's a no brainer. Plus, the equipment on the Golf is still far better.
The elantra touring is the old elantra. If you need a hatch, then of course, get the TDI. I needed a hatch and got a GTI instead of the elantra.

As for the TDI, I was under the impression that it was a Golf with a different engine. The base golf is $18,000, so I thought it merited comparison with the elantra. I'm not sure what toys the TDI comes standard with, but it better be a hell of a lot to warrant the $7,500 over the elantra considering the two cars are pretty much the same on fuel costs.
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Old 09-19-2011, 07:15 PM   #19
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The elantra touring is the old elantra. If you need a hatch, then of course, get the TDI. I needed a hatch and got a GTI instead of the elantra.

As for the TDI, I was under the impression that it was a Golf with a different engine. The base golf is $18,000, so I thought it merited comparison with the elantra. I'm not sure what toys the TDI comes standard with, but it better be a hell of a lot to warrant the $7,500 over the elantra considering the two cars are pretty much the same on fuel costs.
TDI typically comes with mid-to-upper level trim.
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