• Sign in to follow this  
    Followers 0

    Opel Reveals A New 1.6L Turbo


    William Maley

    Staff Writer - CheersandGears.com

    October 10, 2012

    Opel has revealed a new 1.6L turbocharged four-cylinder that will be part of a new engine family coming out within the next few years. The 1.6L engine uses an aluminum block and spark ignition direct injection (SIDI). Opel says the new engine improves fuel efficiency by 13%.

    In standard form, the 1.6L Eco Turbo produces 168 HP and 206 lb-ft of torque. In the Performance Turbo model, power is upped to 197 HP and 221 lb-ft of torque.

    The new 1.6L turbo will be appearing first in the new Cascada cabriolet in 2013, with other models following thereafter.

    There is no word if this new engine will be coming over to the U.S., but when asked ,officials said it's “under consideration”.

    Source: Autoweek

    William Maley is a staff writer for Cheers & Gears. He can be reached at william.maley@cheersandgears.com or you can follow him on twitter at @realmudmonster.

    0


    Sign in to follow this  
    Followers 0


    User Feedback


    Encore and Verano need that, and optional for the Cruze. Then Buick at least has some separation from Chevy, rather than having the same powertrain.

    1

    Share this comment


    Link to comment
    Share on other sites

    I would guess that any vehicle that is Opel based would be first in line to get it. So in the US that means Encore, Verano, and Regal.... though I believe Regal to be least likely to get it in the current generation.

    0

    Share this comment


    Link to comment
    Share on other sites

    I generally don't favor turbocharged setup with much higher torque figures than hp numbers. There is only one conclusion you can draw from such figures, and that is that the turbocharger is undersized and over boosted.

    Let me explain... 206 lb-ft is 206 hp at 5252rpm. What that means is that the power peak arrives at some engine speed lower that. Assuming a flat torque plateau the power peak is probably around 4300 rpm. You can also get 168 hp if you boost the engine to say a mere 160 lb-ft but carry it to 5500 rpm. Generally speaking the effective mass air flow in both power peak instances are about the same and generally speaking the same turbine/compressor pairing would be used in both. The only reason the engine is not about 220 hp @ 5500 rpm is because the selected turbo is too small and runs out of airflow capacity above about 168 hp.

    There are two reasons why taking an engine with a very small turbo to relatively high boost at lower rpms then having to back off quite early (in the 4000s) to avoid overspeeding the turbo is not ideal. First of all, a 168hp @ 5500 rpm / 160 lb-ft @ 1500~5500 rpm engine is far more linear and enjoyable to drive. Turbolag getting to 160 lb-ft will be significantly less than getting to 206 lb-ft, also the engine won't feel like it's running short of breath early in the mid-4000s. A 168 hp @ 4300 rpm / 206 lb-ft @ 2300~4300 engine feels like a diesel!

    The second reason is one of efficiency. A significant factor affecting fuel economy is the compression ratio of the engine. This is because the compression ratio in an Otto cycle is it's expansion ratio and a larger expansion ratio extracts more energy from each ounce of fuel burned. If you take an engine to about 100 lb-ft / liter you can have a 10.5~11.0:1 compression with direct injection with a boost pressure of about 10~11 psi. If you want to take the engine to about 130 lb-ft / liter you need about 18 psi of boost which means your compression (even with DI) needs to go down to about 9.0~9.3:1. That in and of itself is worth about 10% mpg (3~4 mpg) in a small engine in a small car.

    Small turbo, high torque, low hp is the worst of both worlds. It has the increased lag and reduced economy of an engine with a larger turbo and about 130 hp/liter, while not having the power and performance.

    0

    Share this comment


    Link to comment
    Share on other sites

    I generally don't favor turbocharged setup with much higher torque figures than hp numbers. There is only one conclusion you can draw from such figures, and that is that the turbocharger is undersized and over boosted.

    Let me explain... 206 lb-ft is 206 hp at 5252rpm. What that means is that the power peak arrives at some engine speed lower that. Assuming a flat torque plateau the power peak is probably around 4300 rpm. You can also get 168 hp if you boost the engine to say a mere 160 lb-ft but carry it to 5500 rpm. Generally speaking the effective mass air flow in both power peak instances are about the same and generally speaking the same turbine/compressor pairing would be used in both. The only reason the engine is not about 220 hp @ 5500 rpm is because the selected turbo is too small and runs out of airflow capacity above about 168 hp.

    There are two reasons why taking an engine with a very small turbo to relatively high boost at lower rpms then having to back off quite early (in the 4000s) to avoid overspeeding the turbo is not ideal. First of all, a 168hp @ 5500 rpm / 160 lb-ft @ 1500~5500 rpm engine is far more linear and enjoyable to drive. Turbolag getting to 160 lb-ft will be significantly less than getting to 206 lb-ft, also the engine won't feel like it's running short of breath early in the mid-4000s. A 168 hp @ 4300 rpm / 206 lb-ft @ 2300~4300 engine feels like a diesel!

    The second reason is one of efficiency. A significant factor affecting fuel economy is the compression ratio of the engine. This is because the compression ratio in an Otto cycle is it's expansion ratio and a larger expansion ratio extracts more energy from each ounce of fuel burned. If you take an engine to about 100 lb-ft / liter you can have a 10.5~11.0:1 compression with direct injection with a boost pressure of about 10~11 psi. If you want to take the engine to about 130 lb-ft / liter you need about 18 psi of boost which means your compression (even with DI) needs to go down to about 9.0~9.3:1. That in and of itself is worth about 10% mpg (3~4 mpg) in a small engine in a small car.

    Small turbo, high torque, low hp is the worst of both worlds. It has the increased lag and reduced economy of an engine with a larger turbo and about 130 hp/liter, while not having the power and performance.

    First off, can you please correct this sentence since it makes no sense at the start of your 2nd paragraph. "What that means is that the power peak arrives at some engine speed lower that."

    Second, your first statement would seem to imply that if they have an undersized turbo and over boosted, then you would have early death of the turbo charger. Is that what you are implying?

    So then if we go with your line of thought, the performance version at 197hp and 221lb-ft of torque would be a bigger turbo charger, but still undersized and over boosted and this would lead one to think that GM is planning on having these things die by 100,000 miles.

    With GM working so hard to change a persons mind, I have a hard time believing they would do this.

    The pictures and info on these links is pretty cool. Looks like a nice little engine.

    http://gmauthority.com/blog/2012/05/opel-announces-all-new-1-6l-turbo-engine-range/

    http://gmauthority.com/blog/2012/08/genera-motors-commences-4-cylinder-powertrain-renewal-with-1-6l-turbo-ecotec/

    Exciting is according to this web site, this engine will have dual rails so it can also run CNG! :D

    http://green.autoblog.com/2008/05/15/gm-launches-two-new-turbocharged-engines/

    0

    Share this comment


    Link to comment
    Share on other sites
    First off, can you please correct this sentence since it makes no sense at the start of your 2nd paragraph. "What that means is that the power peak arrives at some engine speed lower that."

    Second, your first statement would seem to imply that if they have an undersized turbo and over boosted, then you would have early death of the turbo charger. Is that what you are implying?

    So then if we go with your line of thought, the performance version at 197hp and 221lb-ft of torque would be a bigger turbo charger, but still undersized and over boosted and this would lead one to think that GM is planning on having these things die by 100,000 miles.

    With GM working so hard to change a persons mind, I have a hard time believing they would do this.

    Actually, that is exactly what I meant. If you any engine is making 206 lb-ft of maximum torque but only 168 hp, the power peak will have to be pretty low in rev range. Horsepower (by definition) = torque x rpm / 5252. If you are making 206 hp at 5252 rpm, you maximum horsepower would be 206 hp @ 5252 rpm. Given that the engine makes "only" 168 hp, it means that torque had fallen off significantly before 5252 rpm. With a flat torque curve -- like most turbo engines have -- 206 lb-ft @ 4300 rpm = 168hp at 4300 rpm. At any rpm above that torque MUST fall off faster than rpm rises otherwise the HP figure will exceed 168hp. At 6000 rpm for instance, torque must have fallen to no more than 147 hp. Otherwise hp will exceed 168 hp.

    Now, when I say the turbo is "undersized" I don't mean that it is being overworked and runs ]at damaging speeds shortening it's life. What I meant was simply that the turbo is incapable sustaining maximum boost all the way to the engine's redline. We generally call this an "undersized" setup, whereas a turbo which is capable of sustaining maximum boost beyond the engine's redline or a higher boost than stock is considered "oversized"

    This is also the reason why torque on must start falling off from 206 lb-ft no later than 4300 rpm. Because beyond that speed, one of two things (or both) must be happening. Either the turbo is exceeding its maximum rated rpm or it is falling of the compressor's efficiency map, and the ECU must progressive reduce boost above that engine speed so the turbo doesn't become short lived or make more heat than it does pressure which does nothing to get you more power. If this is not the case the engine would continue to make it's maximum torque (which collerates roughly with maximum boost) to a higher rpm and generate a higher hp figure than 168hp.

    Personally, I favor designs which have slightly lower torque than hp. This allows lower boost, higher compression which translates to both better fuel efficiency and a more responsive, more linear, engine. Examples of these will be the ATS 2.0T's 270hp / 262 lb-ft (LTG) engine or the Nissan GT-R's 520hp / 451 lb-ft (VR38DETT) engine.

    0

    Share this comment


    Link to comment
    Share on other sites
    The 197 hp version of the engine should replace the 2.5 in the ATS.

    Personally, I'd favor a detuned 2.0L DI turbo for the ATS rated at about 210hp.

    0

    Share this comment


    Link to comment
    Share on other sites


    Your content will need to be approved by a moderator

    Guest
    You are commenting as a guest. If you have an account, please sign in.
    Add a comment...

    ×   You have pasted content with formatting.   Remove formatting

      Only 75 emoticons maximum are allowed.

    ×   Your link has been automatically embedded.   Display as a link instead

    ×   Your previous content has been restored.   Clear editor




  • Popular Stories

  • Today's Birthdays

    1. caddycruiser
      caddycruiser
      (31 years old)
    2. Keenaq8wwq
      Keenaq8wwq
      (28 years old)
    3. ohsnap
      ohsnap
      (39 years old)
  • Similar Content

    • By William Maley
      There are still a lot of unanswered questions concerning the sale of Opel/Vauxhall to PSA Groupe. A fair number deals with Buick as a number of their products (including the new Regal) are intertwined with Opel. GM executives say this will not affect Buick's lineup down the road.
      “The sale of Opel will have no impact on the fresh new lineup Buick is building out,” said Duncan Aldred, GM’s vice president of global Buick and GMC during the launch of the 2018 Regal this week.
      “This is very much part of our portfolio plan,” said Mark Reuss, GM’s executive vice president of global product development, purchasing, and supply chain to Car and Driver. “As we said, Opel and the engineering/production piece of this is very much intact for all of our global platforms. So, you know, no impact.”
      While the deal isn't fully finished yet, Reuss claimed that issues relating to products would be settled before the final transfer takes place. Reuss said he didn't know "of a specific agreement" when asked about if GM would pay PSA Group for engineering work done by Opel. 
      In related news, Automotive News Europe reports that Opel would continue to build Buick vehicles beyond 2019 in its German factories. 
      Source: Automotive News Europe (Subscription Required), Car and Driver

      View full article
    • By William Maley
      There are still a lot of unanswered questions concerning the sale of Opel/Vauxhall to PSA Groupe. A fair number deals with Buick as a number of their products (including the new Regal) are intertwined with Opel. GM executives say this will not affect Buick's lineup down the road.
      “The sale of Opel will have no impact on the fresh new lineup Buick is building out,” said Duncan Aldred, GM’s vice president of global Buick and GMC during the launch of the 2018 Regal this week.
      “This is very much part of our portfolio plan,” said Mark Reuss, GM’s executive vice president of global product development, purchasing, and supply chain to Car and Driver. “As we said, Opel and the engineering/production piece of this is very much intact for all of our global platforms. So, you know, no impact.”
      While the deal isn't fully finished yet, Reuss claimed that issues relating to products would be settled before the final transfer takes place. Reuss said he didn't know "of a specific agreement" when asked about if GM would pay PSA Group for engineering work done by Opel. 
      In related news, Automotive News Europe reports that Opel would continue to build Buick vehicles beyond 2019 in its German factories. 
      Source: Automotive News Europe (Subscription Required), Car and Driver
    • By William Maley
      One of the big questions facing the sale of Opel to PSA Group is what will happen in the future. Opel CEO Karl-Thomas Neumann spilled some of the beans in an interview with German magazine Auto Motor und Sport.
      Neumann will remain the CEO of Opel, but tells the magazine that he will work closely with PSA's CEO Carlos Tavares.
      "It is important for me to stand before employees and show leadership. I have done this in the past and will continue to do so," said Neumann.
      "I think we have great respect for each other. That is why I see a good foundation for continued cooperation," the magazine quoted Neumann as saying.
      Opel will also have its own leadership, and the ability to design and develop its own cars. The only difference is that it will be using platforms from PSA. Neumann says it will take several years for the brand to transition from GM to PSA platforms.
      The main priority is to get Opel profitable once again. This will be accomplished by deepening cooperation with PSA and lowering development costs. Opel is also planning their largest product offensive with 7 new models being launched in the near future. They include a new SUV that will serve as the second flagship model alongside the new Insignia and new electric models. Neumann declined to comment on a report he was planning to make Opel an electric-vehicle only brand.
      Interestingly, Neumann revealed that he was very skeptical about introducing Opel into the Chinese marketplace.
      "This is a complete misunderstanding of the situation. PSA has long since ceased to be sick, but has recovered very strongly and just presented a super result for 2016. And we are clearly on the road to recovery. From a strong and a well-being, two might now become strong."
      Source: Auto Motor und Sport

      View full article
    • By William Maley
      One of the big questions facing the sale of Opel to PSA Group is what will happen in the future. Opel CEO Karl-Thomas Neumann spilled some of the beans in an interview with German magazine Auto Motor und Sport.
      Neumann will remain the CEO of Opel, but tells the magazine that he will work closely with PSA's CEO Carlos Tavares.
      "It is important for me to stand before employees and show leadership. I have done this in the past and will continue to do so," said Neumann.
      "I think we have great respect for each other. That is why I see a good foundation for continued cooperation," the magazine quoted Neumann as saying.
      Opel will also have its own leadership, and the ability to design and develop its own cars. The only difference is that it will be using platforms from PSA. Neumann says it will take several years for the brand to transition from GM to PSA platforms.
      The main priority is to get Opel profitable once again. This will be accomplished by deepening cooperation with PSA and lowering development costs. Opel is also planning their largest product offensive with 7 new models being launched in the near future. They include a new SUV that will serve as the second flagship model alongside the new Insignia and new electric models. Neumann declined to comment on a report he was planning to make Opel an electric-vehicle only brand.
      Interestingly, Neumann revealed that he was very skeptical about introducing Opel into the Chinese marketplace.
      "This is a complete misunderstanding of the situation. PSA has long since ceased to be sick, but has recovered very strongly and just presented a super result for 2016. And we are clearly on the road to recovery. From a strong and a well-being, two might now become strong."
      Source: Auto Motor und Sport
    • By William Maley
      Last week saw the PSA Group (parent company of Citroen and Peugeot) purchasing Opel and Vauxhall from General Motors for $2.3 billion. This move would make the PSA Group the second-largest automaker in Europe. We already know some of the plans that PSA Group has for their new brands such as setting operating profit targets of 2 percent in 2020 (jumps to 6 percent by 2026) and the next-generation Opel/Vauxhall Corsa being the first new product developed with PSA. But as we alluded to in the original news story, there are a lot of questions that remain unanswered such as possible job cuts or what happens to Buick and Holden as they share products with Opel. I have been doing a bit of thinking on these and some other questions. The end result is this piece.
      1: Will there be job cuts and plant closures?
      In 2016, PSA Group employed 172,000 people worldwide. With the acquisition of Opel and Vauxhall, they will be adding close to 42,000 workers (the majority of those from Opel). The number of plants will also increase to 28 due to this purchase. Sooner or later, PSA Group is going have to make cuts. During the press conference announcing the deal, PSA Group CEO Carlos Tavares said the company “would honor existing labor agreements and closing plants is a “simplistic” solution.” That may be true for now, but this might change within the coming years. Some analysts believe PSA Group will close two to three plants within five years.
      The most likely place where the closures and layoffs could take place is in Great Britain. The reason as we talked about in a story back in February deals with the decision made by British citizens last year with leaving the European Union.
      “By leaving, the country would lose access to the EU Single Market which guarantees unconstrained trade across the member states. It would mean various countries would be leveraging tariffs on British-made goods, making production in the country less competitive.”
      Former British member of parliament and business secretary Sir Vincent Cable outlined how bad this decision looks for Vauxhall in a recent interview on BBC Radio 4.
      There could be a way that the British Government could at least stall the possible closures. Back in October, the British Government worked out a secret deal with Nissan to keep them investing in British car production at their plant in Sunderland. This deal caused an uproar as the details were kept as many believed the British Government would be handing over money to keep Nissan happy. But sources told British newspaper The Independent back in January that the deal had no mention of money.
      It could be that the British Government could do something similar for PSA Group to keep jobs, but it is too early to say if this will happen or not.
      2: Will this affect PSA’s plans of entering the U.S.?
      Probably not. Let’s remember that PSA Group is working through a ten-year plan that may or may not see the return of the Citroen and Peugeot, along with the introduction of DS to the country. Already, the first part of this plan is gearing up for the launch of a car sharing service next month. There is also extensive research going on into the U.S. marketplace. 
      But could there be a possibility of Opel or Vauxhall vehicles being sold here? It would not be surprising if there isn’t talk about this at PSA Group’s HQ. But there is a slight complication to this idea. As part of the sale, PSA Group cannot sell any Opel vehicles developed by GM anywhere in various markets outside of Europe (China and U.S. for example) until they transition to PSA platforms. That means a number of models such as the Astra, Insignia, and Mokka are out of the question for the time being. If Opel was chosen to be one of the brands PSA would sell in the U.S., they might not have a full line of vehicles to sell due to this clause.
      3: What does the future hold for Buick and Holden?
      If there are some losers from the sale of Opel, it has to Buick and Holden. Buick has found some success with Opel products as the Encore (rebadged Mokka) has become one the best-selling models for the brand. Holden is getting a shot in the arm as the Astra will hopefully help their fortunes in the compact space, and the new Commodore (rebadged Insignia) has a tough task ahead of it with living up to an iconic name. For the time being, Opel will continue supplying models to both brands. It is what happens in the future that many are concerned about.
      During the Geneva Motor Show, GM President Dan Ammann said something very interest to Australian journalists about the future of Holden’s products.
      This makes sense as the Astra was only launched and the Commodore is getting ready to go on sale. But I wouldn’t be surprised if talks begin very soon about this very topic. The same talks are likely to begin at Buick soon where they face the same issue for the Regal and Encore. Our hunch is Buick might have the easier time of two. The Encore would continue on since it shares the same platform as the Chevrolet Trax. As for the Regal, it could leave Buick’s lineup once the next-generation model runs its course.
      4: Does GM lose anything with this deal?
      There has been a lot of talk about how much money will be freed up from the sale of Opel/Vauxhall for GM, along with making a bit more profit. But it comes at a cost that could hurt GM down the road. The recent crop of compact and midsize sedans from GM owe a lot to Opel’s engineering knowledge. Vehicles that excel in driving dynamics and fuel economy are worth their weight in gold when it comes to the European marketplace. As we know, one part of why GM went into bankruptcy was the lack of competitive small and midsize cars that got good fuel economy. Opel would prove to be GM’s savior with this key knowledge.
      Right now, compacts and midsize sedans aren’t selling as consumers are directing their attention to crossovers and SUVs. This is due in part to lower gas prices. But sooner or later, the price of gas will go back up and cause many to go back to smaller vehicles. With talk about GM scaling back on their small and midsize car lineup, this decision could have consequences down the road. Plus with Opel out of the picture, GM doesn’t have someone it can rely on to get these models back to the forefront. We can hope GM’s North American office has learned some stuff when working with their European counterparts.
  • Recent Status Updates

  • Who's Online (See full list)