• Mar 24, 2010
These are the days when V6 engines are getting all the love, and the reasons are obvious. Chrysler has finally got its Phoenix Pentastar V6 on, and down under General Motors recently rolled out the facelifted Commodore line with its 3.0-liter SIDI V6. The point is to provide solid power and go easy on the gas, and in the U.S. the V6 that's been making that point very well is Ford's 3.5-liter V6 EcoBoost found in the Flex and Lincoln MKS and MKT.

GM's got its eye on that lump as it prepares a twin-turbo 3.0-liter V6 engine provisionally called LF3, a derivative of the same High Feature LF1 V6 (pictured) in the new Commodore. According to GM Inside News, we should "expect the engine to rival" the EcoBoost. The Ford motor comes in at 350 horsepower and 355 pound-feet of torque, compared to the 3.0-liter SIDI V6 at 270 hp and 213 lb-ft.

Where would this engine appear? Up at this end of the Earth we can probably expect it in the newly confirmed Cadillac XTS (Cadillac worked with Holden to develop the HF1) and perhaps even the Cadillac ATS and the Camaro. Look for it in 2011 or 2012... hopefully.

[Source: GM Inside News]


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  • 53 Comments
      • 4 Years Ago
      Forced induction V6's, GM? Think of the possibilities! You could put them in a ponycar, a Buick coupe, or hell, even a small GMC pickup and SUV! ...an amazing future we're heading towards...
        • 4 Years Ago
        Thats why it is, and forever will be GM uber allas; they have thrown away more tech than the others have ever come up with.

        A company that has to play catch up with ITSELF!

        Uber allas.
        • 4 Years Ago
        I'm only 28, but Sir I do believe your comment is the best yet!

        (Still dreaming about having a Syclone/Typhoon and Grand National)
        • 4 Years Ago
        I'm in my mid 20's and I got it. If I could only have one car the rest of my life it would probably be a GN.
        • 4 Years Ago
        In all fairness, most of the turbo GM engines were a joint venture with McLaren ;) My friend has a modified GMC Typhoon, what a beast!
        • 4 Years Ago
        fixitfixitstop, I think us old fogeys who get it are showing our age ;)
        • 4 Years Ago
        ++++1 dude... seems that someone at GM has been getting flashbacks.
      • 4 Years Ago
      This reminds me of the late 80s/early 90s when the major Japanese manufactuers were turboing everything and making gobs of power with rock solid engines. What a great time to be a car enthusiest...

      When is Toyota/Nissan going to start offering turbo 6 cylinders in their more main stream cars?? Not including Nissans GTR...maybe a turbo VQ37 for the next gen Maxima/Z Car?
        • 4 Years Ago
        When people are willing to pay $40k for a Camry.
        • 4 Years Ago
        @naggs

        275hp? Try an under rated 304hp. The 304hp version of the 3.5L is found In the 350 models of the Lexus lineup.
        • 4 Years Ago
        still, that has nothing to do with '80s-early '90s turbos' and its the north america only lexus brand
      • 4 Years Ago
      Mmmmmm twin-turbos
        • 4 Years Ago
        I love my TT Ecoboost. No Turbo lag, decent fuel economy, Kansas flat torque curve.

        Try a modern one; you may like it.
        • 4 Years Ago
        @BigWill:

        The Genesis is impressive at 17/25, but it's still RWD. If it were available in AWD, like the MKS Ecoboost, it would be likely to get more like 16/23. What's more is that despite the added weight vs. the Genesis, the MKS Ecoboost is still quicker.
        • 4 Years Ago
        dondonel you are being disingenuous. The Mustang that get 31 mpg higway is slow [relatively speaking], it is no where near any N54 powered 3 series. BMW doesn't play axle ratio games.

        There is little to no turbocharger latency, unless you are trying to get some.
        There is engine lag due to throttle by wire, turbocharger actuation, variable valve timing phasing response at idle speed.
        and don't use regular fuel.
        • 4 Years Ago
        "Given the huge disadvantages the Taurus SHO has to overcome. It's still pretty amazing it can get the same mileage."

        Curiously the Hyundai Genesis gets conveniently ignored, even more so when the conversation is about the Lincoln MKS. The Genesis with the Tau 4.6 V8 weighs over 4,000 lbs, has 385 hp and is EPA rated at 17/25.
        • 4 Years Ago
        I just hope this battle over twin turbos ends with an EcoBoost (maybe Twin Force) 5.0
        • 4 Years Ago
        Isn't the new 412hp 5.0 rated at the exact same 17/25 as the 355hp ecoboost?
        • 4 Years Ago
        there will be no TT 5.0 for the mustang

        the massive cylinder heads fill up the entire engine bay and there is no more room for TT and DI

        not gonna happen at least for this generation of the mustang, ecoboost v6 is a few years away though
      • 4 Years Ago
      Thats awesome. Cant wait for this engine to come out. Super excited about the ATS too...
        • 4 Years Ago
        YES. I'm dying to hear more news about the ATS. GM's been so mum about it since December.

        All things considered, I've got faith in GM to do the ATS right. My one worry is they keep the weight down. I don't even care about how powerful the V is, because even a lowly LS3 would be adequate for keeping up with an M3. A turbo 6 would work great too, but for some reason I don't think this will be the one to make it to the ATS-V.

        By the way Autoblog, you're killing me by not including the fact that GM already has a turbocharged high feature V6. A 2.8L non-DI one at that, making 300 hp in the SRX and 325 hp in the Opel Insignia OPC. My feeling is this 3.0L motor has an aim of about 350 hp, which would make for excellent 335i competition.
      • 4 Years Ago
      Personally don't really care if it is TT, single, supercharged, 8/6/4 cylinders. As long as it is designed and tuned properly it still goes when you open up the tap. The whole "it must be a V8" thing is overrated.
      • 4 Years Ago
      An idea Jay Leno championed though his Camaro's TT V6 is 3.6 liters and produces 425 hp.
      • 4 Years Ago
      Z/28 Z/28 Z/28 Z/28 Z/28 Z/28 Z/28 Z/28 Z/28 Z/28 Z/28 Z/28 Z/28 Z/28 Z/28 Z/28 Z/28 Z/28
        • 4 Years Ago
        Mind explaining to me why you're repeating "Z/28"? Because the LS3 in the SS will be more powerful than this new engine.

        For future reference...

        The Z/28 might of been slotted below the the SS during the last generation, but it was the top-of-the-line model before that. GM has also confirmed that the next Z/28 will be slotted above the SS.
      • 4 Years Ago
      What are these turbos you talk about? It must be something new? Okay end of sarcasm why are they making such a big deal about turbo charging engines everyone has been doing it for ages.
      • 4 Years Ago
      I hope this engine makes its way into (dare I say it), a new Rear-Wheel Drive GNX!
      • 4 Years Ago
      A turbo V6 would be a great option for the Camaro for those who want to play with forced induction or who live at high elevation . . . however, Lutz has already said the high feature V6 costs more to make than the LS3 so I'd assume that if we see a turbo V6 Camaro, no V8 would be available.
      • 4 Years Ago
      Wow, all these GM/Ford battles going on. GM might actually have a future after all. A 3.0 Twin Turbo sounds wonderful!
        • 4 Years Ago
        Can someone explain why a TT version of the 3.6 is not possible?
        • 4 Years Ago
        Greg: you forget that GM beat Ford to market with a direct injected, turbo engine. Remember, the Solstice GXP, HHR SS and Cobalt SS? 2.0L turbo DI making 260hp and 260 lb*ft (with the same flat torque curve)
        • 4 Years Ago
        The BIG issue I see for GM is more expensive R&D to come up with this 3.0 TT V6 to work around all of Ford's (125) patents on the "controls" of the EcoBoost twin-turbo that produce a flat torque curve, seemless integration with the 6-speed auto trans and virtually "eliminated turbo lag" to produce an awesome driving experience that has become part of Ford's DNA.

        I guess you can say the spoils come to he who comes first and Ford definely has it with EcoBoost patented "computer control" technology.
      • 4 Years Ago
      Yay for new CAFE regulations forcing automakers to make engines smaller and more efficient through the use of technology.

      No, i'm not being sarcastic. Twin turbo 6 cylinders are effin' hot. I can't wait for the turbo i4 cars - i think they will bring back the fun of tuning that has been lost with NA VVT/DI motors.
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