EcoTec3 4.3 vs Vortec 4.3 - Page 3

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Thread: EcoTec3 4.3 vs Vortec 4.3

  1. #31
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    Re: EcoTec3 4.3 vs Vortec 4.3

    Quote Originally Posted by All Star View Post
    Why wouldn't you just swap an LS based V8 into an S10? Wouldn't that be easier? That said, EcoTec3 is a terrible name. Ugh.
    The V8 would probably be easier, yes. But an all-aluminum DI VVT 4.3 in an S10? Unique!
    Turbocharged 4.3 S10

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    Re: EcoTec3 4.3 vs Vortec 4.3

    Quote Originally Posted by big swede View Post
    That would be a perfect choice for that car. More compact, lighter, cheaper, and probably more torque than the 3.6.
    Or even for the next Camaro. Besides all of the attributes you've mentioned, I wouldn't be surprised if it were quieter than the 3.6 as well. I'm sure it will be very torquey at lower RPMs. You could probably get away with a low numerical axle ratio and retain good acceleration with high FE numbers.
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    Re: EcoTec3 4.3 vs Vortec 4.3

    Quote Originally Posted by Z284ever View Post
    Or even for the next Camaro. Besides all of the attributes you've mentioned, I wouldn't be surprised if it were quieter than the 3.6 as well. I'm sure it will be very torquey at lower RPMs. You could probably get away with a low numerical axle ratio and retain good acceleration with high FE numbers.
    For all of the reasons we have both mentioned I believe that's exactly what you will see. Makes sense for the Chevy brand also.

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    Re: EcoTec3 4.3 vs Vortec 4.3

    Quote Originally Posted by swagled View Post
    RAM surprised many when it offered a 3.6L V6 in their 2wd, offering 25MPG highway. But I would not expect the 4.3L Eco to top that. Something like 16/23 mpg is where I think it'll land.
    wrong... expect more. expect more than 26 on the road

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    Re: EcoTec3 4.3 vs Vortec 4.3

    yeah, so long as the dimension and engine mounts are OK, i am also considering to cram a new LV3 4.3 V6 into my S-10 chevy blazer, up til now, the out-going Vortec LU3 4300 and this brand new LV3 looks alike.....

    The code series, L35, LG3, LU3, LV3, and the 4300 displacement, all naturally leads you to think that way...., though GM staff insists that there's nothing similar except for the naming!
    Last edited by chevyblazer; 12-18-2012 at 08:28 PM.

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    Re: EcoTec3 4.3 vs Vortec 4.3

    Quote Originally Posted by Tone View Post
    Given how well modified LS engines take to boost, I wonder what kind of power a twin turbo 4.3 would make? Might make for an interesting truck/musclecar motor. It would probably package well, be reasonably light, and make a bunch of power.
    For potential look at the Nissian GTR super car 3.8L twin turbo hand built for the production car. It puts out 543 HP !

    Or look at what GM did with Jay Leno's Corvette powered Tornado they squeezed out 1000 hp .

    The I.C. engine still has a lot of power to be had from smaller engines, lighter weight, easer packaging.
    Last edited by G&Rs57GMC; 12-22-2012 at 10:16 AM.

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    Re: EcoTec3 4.3 vs Vortec 4.3

    The new 4.3 would appear to be a superior engine choice for Impala, Malibu, Camaro, Colorado, Silverado and any other vehicle that needs a compact, reliable long lasting V6 and upwards of 26 mpg highway.
    This engine would be perfect for Colorado and the upcoming Trailblazer.

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    Re: EcoTec3 4.3 vs Vortec 4.3

    It's slow with the holidays, but I would think automotive journalists will be getting more drive time with the Gen V engines as we approach NAIAS. Anyone know how long it'll be for SAE ratings to be completed?

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    Re: EcoTec3 4.3 vs Vortec 4.3

    I've read elsewhere to expect 315hp/310torque and 17/25mpg.

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    Re: EcoTec3 4.3 vs Vortec 4.3

    Those MPG numbers sound credible. People keep speculating a great leap forward, but fuel efficiency seems to be a tougher frontier of physics to push back on, than power or weight is.

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    Re: EcoTec3 4.3 vs Vortec 4.3

    Quote Originally Posted by Narg View Post
    I've read elsewhere to expect 315hp/310torque and 17/25mpg.
    Those would be impressive numbers.
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    Re: EcoTec3 4.3 vs Vortec 4.3

    Quote Originally Posted by Narg View Post
    I've read elsewhere to expect 315hp/310torque and 17/25mpg.
    I'm expecting less. 315hp would mean it has LS7 levels of hp/L. You're not going to rev a 4.3L truck v6 to those levels.

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    Re: EcoTec3 4.3 vs Vortec 4.3

    Quote Originally Posted by Slideways View Post
    I'm expecting less. 315hp would mean it has LS7 levels of hp/L. You're not going to rev a 4.3L truck v6 to those levels.
    It may be less, but a hp/L ratio comparable to the LS7 wouldn't surprise me with any of the GenV smallblocks.
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    Re: EcoTec3 4.3 vs Vortec 4.3

    I'm REALLY looking forward to this motor for some reason. I really hope it gets good MPG in the trucks, and hope it can be had in an extended or crew cab 4X4 (while still getting decent MPG).

    Also, imagine a new Syclone & Typhoon...
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    Re: EcoTec3 4.3 vs Vortec 4.3

    Quote Originally Posted by tajmioso View Post
    wrong... expect more. expect more than 26 on the road
    No, not in a fullsize truck. A camaro with much better aerodynamics, less weight, with a 3.6 only gets 28 or so in the real world.

    You cannot beat the laws of physics. A stripped out 2wd regular cab driven by an 80 year old might get 26. No way anything else will get that high.
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