I have a Corvette question:

Discussion in '1993 Chevrolet Corvette Coupe ZR1' started by lurbo, Apr 18, 2003.

  1. Before a few minutes, I just saw this car.Nearby the door of the car it wrote "port tuning injection".What is this?

    BTW This car is really good.
  2. Re: I have a Corvette question:

    So does anyone know?
  3. Re: I have a Corvette question:

    Kid in my school got a C4. It's one pop-up light doesn't come up... <A BORDER="0" HREF="http://www.supercars.net/emoticons.html"><IMG BORDER="0" SRC="http://speed.supercars.net/cboardhtml/emoticons/sad.gif"></A>
  4. Re: I have a Corvette question:

    I'm not to sure, but, if I had to guess, I would that they owner put that one after he tuned the fuel injectors so maybe spray more fuel in or something like that, sorry, just a guess.
  5. Re: I have a Corvette question:

    Actually that would be "Tuned Port Injection."
    And it's a way of fuel injection for the '85 to '91 Corvette's engine. And along with the F-bodies of similar years. (They switched to the LT1 engine after that)

    At first, carburetors were replaced with throttle body fuel injection systems (also known as single point or central fuel injection systems) that incorporated electrically controlled fuel-injector valves into the throttle body. These were almost a bolt-in replacement for the carburetor, so the automakers didn't have to make any drastic changes to their engine designs.

    Gradually, as new engines were designed, throttle body fuel injection was replaced by multi-port fuel injection (also known as port, multi-point or sequential fuel injection). These systems have a fuel injector for each cylinder, usually located so that they spray right at the intake valve. These systems provide more accurate fuel metering and quicker response.
  6. Re: I have a Corvette question:

    I have cross-fire injection in my 84 vette.
  7. Re: I have a Corvette question:

    cross fire was an experimental design and it sucked performance wise...
  8. Re: I have a Corvette question:

    wasn't cross fire known as "cease fire" in performance circles?

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