Ecotec developed by Lotus? - Third Generation Forum

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Ecotec developed by Lotus?
Friday, September 16, 2005 4:48 AM
I was at the local Chevy dealer getting and oil change and they had 4 year old car magazine that had an article on the Ecotec engine. It mentions that the engine was co-developed by Lotus. Wow, that's great!

"...nevermind maneuvers lieutenant, just go straight at them!"
-Admiral Nelson at the Battle of Trafalgar


Re: Ecotec developed by Lotus?
Friday, September 16, 2005 6:58 AM
I think I remember hearing about that. But seeing how Lotus is owned by G.M. (I think)
then its not too big of a shocker.




Semper Fi SAINT. May you rest in peace.



Re: Ecotec developed by Lotus?
Friday, September 16, 2005 12:28 PM
The federal Lotus uses a toyota engine (whom GM owns a part of -see vibe and matrix-), so it would not suprize me.
Re: Ecotec developed by Lotus?
Friday, September 16, 2005 12:52 PM
Russ B wrote:The federal Lotus uses a toyota engine (whom GM owns a part of -see vibe and matrix-), so it would not suprize me.


they dont that was a joint effort..


jackalope ( a.k.a. the prick ) wrote:I think I remember hearing about that. But seeing how Lotus is owned by G.M. (I think)
then its not too big of a shocker.


since when????



. member 1244or55
.http://www22.ocn.ne.jp/~cavalier
Re: Ecotec developed by Lotus?
Friday, September 16, 2005 12:56 PM
G.Ms had its hands in lotus for a while before it got re-bought out. Theres actualy an article in Octobers issue of automobile magize where it talks about G.M.'s involvement
with lotus.

Let me know if you'd like the exact quote from the author of the article




Semper Fi SAINT. May you rest in peace.



Re: Ecotec developed by Lotus?
Friday, September 16, 2005 1:12 PM
Ya the last colaboration GM had in engine making was the LT-5. The last colaboration GM had with Lotus was the Lotus Eliseand Opel Speedster. After that Lotus went solo even with their V8 on the Esprit
And no the Ecotec found here in the states has ZERO to do with Lotus, not even the Ecotec found Europe has to do with Lotus as that is a Opel/ Saab design.
And even if they did, Lotus would be using it on the Elise around the world and not be using Rover, Honda, Toyota engines in it.



>>>For Sale? Clicky!<<<
-----The orginal Mr.Goodwrench on the JBO since 11/99-----

Re: Ecotec developed by Lotus?
Friday, September 16, 2005 1:27 PM
/\ /\ /\ So which 2.2 did the elise and speedster have? I thought they were a pre-runner of our 2.2 ECO engines.




Semper Fi SAINT. May you rest in peace.



Re: Ecotec developed by Lotus?
Friday, September 16, 2005 4:37 PM
Jack,
Elise in Europe does not carry a Ecotec it always carried a Rover engine. Early imported Elise (pre-2005) were being brought here by an independent company and for emmision certification and approval they had the Honda 1.8L Type-R engine, then Lotus decided to import the Elise and went and decided on the Celica's 1.8L I-4.
Opel Speedster has the same 2.2L Ecotec N/A found in the in the J, N, Vue, LS etc. Then the 2.0L Turbo Ecotec (Opel/Saab designed) is identical to the Saab's 9-3 from 2002 and under---Not the Epsilon's 9-3 of 2003 and up.



>>>For Sale? Clicky!<<<
-----The orginal Mr.Goodwrench on the JBO since 11/99-----

Re: Ecotec developed by Lotus?
Friday, September 16, 2005 5:49 PM
I've found several web sites that say the Ecotec engine was developed by Lotus Engineering. The Saturn Ion forum site also says the the Ecotec was designed by Lotus. Here is an excerpt from one site I found:



That decision was made easier by the fact that former Lotus owner GM had commissioned a version of the Elise in 2000. Unlike the Elise S1, GM wanted what would become the Opel Speedster/Vauxhall VX220 to have easier ingress and egress, more safety equipment, and a GM powertrain. In response, the chassis side rails were lowered, front air bags and ABS were fitted, GM's L850 Ecotec engine replaced the Rover unit, and a new assembly plant was erected. Not one to pass on a good thing, Lotus adopted almost everything but the GM powertrain for the Elise Series 2-despite Lotus Engineering having designed the L850 engine--and wrapped it all in a new body. All that was missing for the U.S. market was a high-power, highrevving engine and suitable transmission that met U.S. emission standards.

I know the LT5 was a Lotus Engineering design and built by Mercruiser, but I just didnt realize the Ecotec was also one of their designs too.

"...nevermind maneuvers lieutenant, just go straight at them!"
-Admiral Nelson at the Battle of Trafalgar

Re: Ecotec developed by Lotus?
Friday, September 16, 2005 7:10 PM
Some people never learn... lol

A Saturn Ion website for a source? Come on... I think a GM official press info is a little more legit, don't you think?
--------------------------------------------------------------
No mention of Lotus working with GM here

GM press info:

GM's Ecotec 2.2-Liter 4-Cylinder Engine Delivers Excellent Fuel Efficiency and Low Emissions in a Quiet, Reliable and Durable Package

Globally Designed Engine Powers 2002 Chevrolet Cavalier, Oldsmobile Alero, Pontiac Sunfire and Grand Am, Saturn VUE

PONTIAC, Mich. - The Ecotec 2.2-liter engine, hailed as General Motors' first truly global engine, delivers excellent fuel economy and low emissions in a reliable, durable package with low noise and vibration.
The lightweight aluminum four-valve overhead cam engine will be available in the 2002 Chevrolet Cavalier, Oldsmobile Alero, Pontiac Sunfire and Grand Am and Saturn VUE. Chevrolet, Oldsmobile and Pontiac applications are rated at 140 horsepower with peak torque of 150 lb-ft. The Saturn VUE version is rated at 143 horsepower and 152 lb-ft of torque.

The Ecotec 2.2-liter engine features a modular design, providing flexibility for a number of future technologies such as turbocharging, variable valve timing and direct injection-gasoline. Low maintenance is another key hallmark of this engine: oil and filter replacement is the only routine service required.

The Ecotec 2.2-liter for North American applications are manufactured at one of the world’s largest engine plants in Tonawanda, New York. Other versions of the Ecotec 2.2-liter engine have already been introduced and well received in several other GM applications around the world. The engine debuted in the 2000 Saturn L-Series and is also featured in many 2001 European applications including the Opel Vectra, Astra, Zafira and Speedster.

Compact and Efficient: Lightweight Engine with Chain Drive
Both the cylinder head and block of the engine are made of lightweight aluminum using the lost foam casting process (see below). Because of the utilization of modern design methods, the 2.2-liter unit weighs 139 kilograms (307 pounds, application dependent).
The new engine family is also very compact in construction. The two overhead camshafts actuate the inlet and exhaust valves via roller finger follower rocker arms. This configuration results in a very compact cylinder head design. The camshafts are driven by a single roller chain only 12.5 millimeters wide as opposed to a much wider toothed rubber belt, resulting in shorter overall engine length for packaging and mass advantages.
The Ecotec 2.2-liter has a stroke of 94.6 millimeters and a bore of 86 millimeters. Overall, in the new applications, the Ecotec 2.2-liter is only 665 millimeters long, 642 millimeters wide and just 655 millimeters tall (26.2 x 25.3 x 25.8 inches).
Low Vibration: Structural Oil Pan, Rigid Lower Crankcase, and Twin Balance Shafts
Smooth operation with very low noise and vibration is another important attribute of the Ecotec 2.2-liter engine. The counter rotating balance shafts are housed in the cylinder block to cancel the primary vertical imbalance inherent to 4-cylinder engines. The structural oil pan, box-like lower crankcase design, MLS (multi-layered steel) gasket and long cylinder head bolts (163 millimeters, 6.25 inches) provide a rigid structure for the engine. The 360 degree mounting flange for the transmission adds to the powertrain rigidity. All the accessories are directly mounted to the engine structure without any brackets, which helps eliminate noise and vibration
.
Low Maintenance: Routine Maintenance Limited to Oil and Filter Change
Low maintenance is another customer advantage for the Ecotec 2.2-liter. In addition to a reduced space requirement, the timing chain with hydraulic tensioner requires no maintenance over its entire working life. The same applies to the high-performance ignition module, which is mounted directly in the cylinder head cover and has two individual ignition coils located directly above the platinum spark plugs. This arrangement eliminates spark plug wires, resulting in greater operating reliability and lower maintenance requirements. With hydraulic valve lash adjusters, the finger follower valvetrain also requires no routine maintenance. Overall, except for changing the engine oil and the fully recyclable oil filter, no routine maintenance is required.
Use of roller finger followers provides about 5 percent reduction in friction compared to the conventional direct acting bucket-type cam followers. Fuel economy for the Grand Am and Sunfire with the automatic transmission are at 24 mpg city, 32 highway. The five-speed manual transmission versions are labeled at 25 city and 33 highway.
Emissions: Meeting Federal NLEV and California LEV Standards
To help meet emission standards, Ecotec's engine management system computer precisely controls the ignition and fuel injection based on feedback from the two oxygen sensors and handles on-board diagnostics.

The exhaust outlet architecture, along with the control system, in most cases enables the Ecotec to meet or exceed the current emission standards, mainly without the use of Exhaust Gas Recirculation (EGR) or Air Injection (AIR). The rear facing exhaust results in a short distance to the catalytic converter for quick catalyst light off on cold starts. Other features like minimum gap platinum-tipped spark plugs and a 3 millimeter top ring land piston design also help to reduce the hydrocarbon (HC) emissions.
Lost Foam Casting: High Precision, Quality, Environmental Compatibility
The aluminum engine block and cylinder head are cast using GM's lost foam process. Pioneered by GM for large engine components, this is similar to the classic lost-wax process, which is used by jewelers and dentists for its high precision capability. Instead of the wax, a polystyrene pattern of the actual part is used. When the hot aluminum is poured into the mold it fills the space occupied by the polystyrene foam, which burns at high temperature and evaporates as a gas. This gas can then be easily treated to make harmless before releasing into the atmosphere.
The lost foam process is noted for its environmental friendliness in contrast to the sand core process. With lost foam, more than 97 percent of the sand is reusable. The process also enables the casting of thinner cross sections for the cylinder walls and smaller passages to eliminate machining operations.

World Engine Family: GM Powertrain, Opel and other GM Organizations Join Forces
The Ecotec 2.2-liter is a member of GM’s global 4-cylinder engine family developed by an international team which included engineers from Opel's International Technical Development Center in Rüsselsheim, Germany; GM Powertrain in Pontiac, Michigan; and Saab in Trollhäten, Sweden. This engine family has flexibility to cover a 1.8 to 2.2-liter displacement range and will power a wide variety of GM vehicles worldwide.


"Cooperation with our colleagues in the global GM alliance gave us access to many synergy effects for the new engine generation which will be installed in numerous cars worldwide," said Walter Schnittger, chief project engineer at Opel. "To satisfy the requirements of the relevant markets and car platforms effectively, we made the basic engine as versatile as possible."

More than 230 engineers and technicians joined forces to develop the Ecotec engine family. For the first time within GM, 100 percent of the engine components were modeled in 3-dimension using GM's state-of-the art computer aided design software.
“This resulted in significant advantages by reducing the number of math models conventionally needed,” said Jay Subhedar, assistant chief engineer at GM Powertrain.
The individual component math models could be used to create experimental and production tools and could be electronically assembled to represent the engine assembly for virtual packaging studies. Within hours, it was possible to transmit electronic models of components or complete engines from one development center to another via satellite, shortening the work process by days or even weeks.

Built to Last: Most Demanding Validation Process in GM’s History
Before going into production, the new engine family was subjected to the toughest and most comprehensive validation process ever carried out at GM.
“Being a global engine, the Ecotec 2.2-liter had to pass all the dynamometer and vehicle tests traditionally run by the various GM organizations worldwide,” said Subhedar.

After careful comparison, the team included the most severe tests in the validation test matrix. For example, the number of hours for the General Engine Durability test on lab dynamometers was increased by 60 percent. In another grueling experiment, the Thermal Cycle test, the engine is run to achieve maximum operating temperature and then flushed with ice cold coolant, shocking the components into sudden contraction. This procedure was carried out for 1,000 hours.

The test program also included extensive real-world road testing in normal as well as extreme climates. Besides extensive testing at GM’s Desert Proving Ground in Arizona and test trips through Death Valley, the engine was also tested in the sand and dusty environment of the Australian Outback. Cold-weather validation was conducted near the Arctic Circle in Sweden and at GM’s winter proving grounds at Kapuskasing in Ontario, Canada. As a result of this arduous testing, customers benefit from extended engine life, high reliability, and low operating costs.

2002 Ecotec 2.2-liter North American Applications
Application Horsepower Torque
Chevrolet Cavalier 140 @ 5600 rpm 150 lb-ft @ 4000 rpm
Oldsmobile Alero 140 @ 5600 rpm 150 lb-ft @ 4000 rpm
Pontiac Sunfire 140 @ 5600 rpm 150 lb-ft @ 4000 rpm
Pontiac Grand Am 140 @ 5600 rpm 150 lb-ft @ 4000 rpm
Saturn VUE 143 @ 5600 rpm 152 lb-ft @ 4000 rpm

GM Powertrain is a global producer of engines, transmissions, castings and components for GM vehicles and other automotive, marine, and industrial OEMs. Headquartered in Pontiac, GM Powertrain has operating and coordinating responsibility for GM powertrain manufacturing plants and engineering centers in North America, South America, Europe, and the Asia-Pacific region.

Again GM did not include any Lotus involvement.

Lastly Lotus never put a Ecotec from the factory in the Elise. Lotus always used Rover derived K-Series unit in Europe. If Lous designed this engine don't you think they would appropriately put it on their cars, correct?

Look here:
2004 Elise
2003 Elise
2002 Elise
2001 Elise
2000 Elise

Any older is void as the Ecotec found here in J, N, Vue, LS cars was not available only in the Saturn LS100-200 and later Opel Vectra.

Lastly I will add, looking at our version of Ecotec, you will see Saturn 1.9L, LD9, and LN2 designs and almost no design from the Europe's Ecotec--- well except the name lol---for marketing purposes. But I do strongly believe the boosted versions of Ecotec turbo or S/C, Saab had lots to do with it.

Still think Ecotec was developed by Lotus?





>>>For Sale? Clicky!<<<
-----The orginal Mr.Goodwrench on the JBO since 11/99-----

Re: Ecotec developed by Lotus?
Friday, September 16, 2005 7:35 PM
/\ /\ /\ Why do you always post such small cliped answers that don't give any details and just make wild guesses based on nothing but pure speculation? HA ! Kidding,

Anyway G.M. doesn't always relese everything that they do ( I don't think so anyway )
If so how many of you have heard that G.M. , B.M.W. , and Chysler are all woking together along with Mercedes to develope the next generation of hybride electric cars.
I didn't believe it either till one of the guys at work showed me some site that actualy had the info about it and how much stuff they're all sharring and working together.
Please don't ask for the site I don't remember it and I won't see him till Monday.




Semper Fi SAINT. May you rest in peace.




Re: Ecotec developed by Lotus?
Saturday, September 17, 2005 9:34 AM
I found the same press release that you posted including a few others that simply say GM engineers around the world, which I guess means Opel, GM USA, and Saab? The previous information I posted wasnt from the Saturn Forum, but rather from another site dedicated to the Ecotec engine. There are at least 10 sites with the GM/Lotus connection, so their must have been an original source that put this info out. It was a 2001-2002 magazine issue and GM still hadnt completely sold Lotus then. Remember, I read the article either Road & track or Car & Driver, so I figured they received their information from a GM press release. It could be that Lotus developed an engine that was later used as the blueprint for the Ecotec. The Nissan Z inline 6 from 1970-1983 is actually a copy of a mid-1960's Mercedes six engine. But Nissan and Mercedes didnt co-develop it, nor has Nissan acknowledged this fact. In any case, I agree that the official GM information makes no direct mention of Lotus, and that is a fact.

"...nevermind maneuvers lieutenant, just go straight at them!"
-Admiral Nelson at the Battle of Trafalgar

Re: Ecotec developed by Lotus?
Saturday, September 17, 2005 6:06 PM
Re: Ecotec developed by Lotus?
Saturday, September 17, 2005 6:09 PM
http://en.wikipedia.org/wiki/GM_Family_II_engine

Ecotec name was adopted in 2000 for the new generation of Family II engines. The name was already used for Opel Family 1 and Family 0 range. GM intends for this new Ecotec to become its global 4-cylinder.

Ecotec Family II is a modern chain-driven DOHC 4-valve design with an aluminum block and head (L850), designed for displacements from 1.8 to 2.4 L. It was developed by an international team of engineers and technicians from Opel's International Technical Development Center in Rüsselsheim, Germany, GM Powertrain in Pontiac, Michigan, and Saab in Trollhättan, Sweden. The engine uses aluminum pistons and cast iron cylinder liners and vibration is reduced with twin balance shafts.

[edit]
SAAB
Saab used a 2.0 L version in the Saab 9-3. It had numerous features, including special oil jets to cool the pistons, an oil cooler, and stronger pistons, connecting rods and cylinder head. The Saab engine also features electronic throttle control, as do many Ecotecs



see ya!

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