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New engine for WS6

This is a discussion on New engine for WS6 within the Firebird / WS6 forums, part of the Vehicle Specific category; Originally Posted by LSCyaL8R I understand that all LS engines will fit our cars..... but the Gen V small block ...

  1. #21
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    Quote Originally Posted by LSCyaL8R View Post
    I understand that all LS engines will fit our cars..... but the Gen V small block will have direct injection and will most likely not be compatible in any way with our current wire harness. For all we know it won't even have an LS designation. I don't know much about the upcoming DI gen V other than the fact it will be more powerful have lower emissions and get better fuel economy. PROGRESS!!!!!
    True, there is literally no downside to DI. More power, better mpgs, ability to run a high comp ratio just as safely. With DI they could could literally sell a 10 to 1 comp ratio ls series engine with a turbo or supercharger and still make it factory reliable.

  2. #22
    Chief of his tribe! LSCyaL8R's Avatar
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    Well there IS a downside. Though it's not in driveability or performance. It's more complex than port injection. It runs at MUCH higher Psi and injects into the combustion chamber rather than just before the valves. While this helps to cool the charge and allow higher compression it also means the parts must be made to much higher tolerances. More complexity = more $$$. Though tuners will have a field day with injector pulse width and timing. In DI you have much better control over fuel delivery and aftermarket injectors can be made with spray patterns designed specifically to work with certain pistons to create the most power. Example of this can be seen in the new Ecoboost motors from ford.... take a look at those pistons!!!



    and a link to the original article

    DI is certainly a wonderful development and I'm really excited about it.... here's hoping we can adapt the next gen small block for use in our f-body's

  3. #23
    Senior Member big hammer's Avatar
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    they've actually been running DI in snowmobiles for a couple years now. the fuel economy is nuts

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    Quote Originally Posted by big hammer View Post
    they've actually been running DI in snowmobiles for a couple years now. the fuel economy is nuts
    Alot of cars have had DI for years. Speed 3 and 6 have had it since 06 or 07, cobalt SS has it, porsche uses it, Audi, pretty much everyone is switching over to it.

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    Senior Member big hammer's Avatar
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    Quote Originally Posted by Zinergy View Post
    Alot of cars have had DI for years. Speed 3 and 6 have had it since 06 or 07, cobalt SS has it, porsche uses it, Audi, pretty much everyone is switching over to it.
    bombardier uses it on 2 strokes. they get twice the fuel economy as a 4 stroke and up to 3x more than an older style efi 2 stroke

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    Member adam3566's Avatar
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    Quote Originally Posted by justinmc978 View Post
    i have a 98, so ill probably want to change out the ecm anyways
    Why would you change your ecm? You plan on going to big stuff 3 for 800+hp or what? If your staying under 550 there is no need to..... Huge waste of money.

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    Senior Member justinmc978's Avatar
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    Quote Originally Posted by adam3566 View Post
    Why would you change your ecm? You plan on going to big stuff 3 for 800+hp or what? If your staying under 550 there is no need to..... Huge waste of money.
    well from what i've heard 98s arent as tuneable as 99+, if i can get it with the motor then nbd

  8. #28
    Just me Y2KPewterSS's Avatar
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    Quote Originally Posted by justinmc978 View Post
    well from what i've heard 98s arent as tuneable as 99+, if i can get it with the motor then nbd
    Stop listening to myths/rumors/inexperienced nonsense.

    98s can be tuned just fine. They have a different plug than the 99-02 models, so it just takes a different connection, thats all.

  9. #29
    Firebird Encyclopedia 9T8W66's Avatar
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    98 ECM's are slightly more difficult to tune but a good tuner should not have a problem.

    But if you did decide to change your ECM then the entire harness needs to changed aswell.
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