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Type: Posts; User: dobey

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  1. Replies
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    Good for you. But that's not very scientific. You...

    Good for you. But that's not very scientific. You have dyno charts comparing stock chip and your Superchip, with everything else being the same? Did you change the VSS gear or install an appropriate...
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    Sorry, but yes, it does just dump more fuel to...

    Sorry, but yes, it does just dump more fuel to make more power. You don't get more power without burning more fuel. There's not a lot of adjustment you can make to the pre-OBD-II or even early OBD-II...
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    Unless you've changed the system to handle the...

    Unless you've changed the system to handle the adjustment, your speedo is reading 1.4% too fast. So if you measure 0-60 time by the speedo, you're actually measuring 0-59 time.

    More importantly,...
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    Or if the tire diameter is different from...

    Or if the tire diameter is different from factory, the gauges might just read wrong, and make you think it's not performing how it should be.
  5. Thread: 5.3l mods

    by dobey
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    676

    What do you want to accomplish? You can change...

    What do you want to accomplish? You can change pretty much anything. You need to be careful with the cam, unless you're going to do a full DoD/AFM delete as well. With AFM, the max lift is limited to...
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    There is not reason to assume that it won't,...

    There is not reason to assume that it won't, either. Like I said, there are hundreds of variables that determine the power and efficiency of the engine. There's more to an intake system than just...
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    Just to re-affirm this. I get the same from my...

    Just to re-affirm this. I get the same from my dealer where I bought my Avalanche. My service rep knows I prefer to do my own repairs and such when possible, and there is no problem. I tell them to...
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    A) Please learn how to use the quote feature of...

    A) Please learn how to use the quote feature of the forum when replying with quotes.

    B) No, that is not what you said. You said the efficiency nor power will change, because the A/F ratio won't...
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    Huh? No. The ECM is already programmed from the...

    Huh? No. The ECM is already programmed from the factory. And it won't give you the stoichiometric ratio every time. It will try to adjust fuel and timing to get that ratio. And more means more fuel,...
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    Agreed that the aftermarkets look better. The...

    Agreed that the aftermarkets look better. The factory design is mostly for noise control. If you think it's crazy looking though, you should look at other intake designs that have existed over the...
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    But that is not normal driving, either. He's...

    But that is not normal driving, either. He's going WOT all the way to 80 MPH. The AVG MPG readout on the dash is also somewhat unreliably as well. The couple of tenths in 0-60 time picked up seems...
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    If you're running at WOT all the time, you're...

    If you're running at WOT all the time, you're just pissing gas, no matter what intake setup you have. Fuel consumption is not linear. At 5000 RPM you are not using ten times as much fuel as you are...
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    The main problem is that most people assume the...

    The main problem is that most people assume the factory system is somehow not a cold air intake, because all of these things are sold as CAI (even when many of them are in fact, not cold air...
  14. Thread: Header Help

    by dobey
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    772

    Well, leaking exhaust is not going to help, no...

    Well, leaking exhaust is not going to help, no matter what headers you go with. You probably aren't going to notice any actual difference on a stock engine. If you aren't doing head work, and running...
  15. Thread: Header Help

    by dobey
    Replies
    12
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    772

    Do you have true dual exhaust on your truck? Long...

    Do you have true dual exhaust on your truck? Long tubes aren't going to help you with what you want exactly. They are better for high RPM applications, not low end. If you're looking for low end,...
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    It depends on which year 5.3 you are talking...

    It depends on which year 5.3 you are talking about. If it's the earlier Gen III 5.3 then the intake and accessories should bolt on to the LS1 just fine. I don't recall which ECM the trucks used for...
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    If you were replying to the previous post, then...

    If you were replying to the previous post, then that doesn't really apply. Yes programmers will do what they say, generally, but the old performance chips for OBD-1 or early OBD-II cars, or the...
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    The factory intake is a Cold Air Intake. If you...

    The factory intake is a Cold Air Intake. If you want to improve intake air flow, just go with the Airraid MIT intake tube to replace the factory tube between the filter box and throttle body.

    I...
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    New trucks don't take "chips" as such. You can...

    New trucks don't take "chips" as such. You can flash a program to the ECU from a tuner, but there is no chip that you replace. The "chips" are for OBD-i and very early OBD-II vehicles.

    And I...
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    I know you are but what am I! LOL @ ethanol...

    I know you are but what am I!

    LOL @ ethanol causing cracking of steel. All those shiners must have had one hell of a time keeping their stills together, back in the 20s and 30s.

    And if you...
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    Yes. To depots. Trucks are still used deliver...

    Yes. To depots. Trucks are still used deliver gasoline to the final destination. And those pipelines do not deliver all the different manner of refined products through the exact same pipe. Whenever...
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    LOL a realist. The statement about you not being...

    LOL a realist. The statement about you not being a physicist was about your presumption that anything that is produced, could somehow output as much useful energy as was used to produce it. There is...
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    Keep the political crap elsewhere please. - -...

    Keep the political crap elsewhere please.

    - - - Updated - - -



    Obviously you're not a physicist.

    - - - Updated - - -
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    You should convert to electric, and run a small...

    You should convert to electric, and run a small diesel generator in the bed. :)
  25. Thread: mpg on 04 sierra

    by dobey
    Replies
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    If you're getting hot air from the engine bay,...

    If you're getting hot air from the engine bay, it's not a cold air intake. The factory intake setup is cold air. It draws in air from the fender well, not the engine bay. The main problem with the...
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