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LT1 | LT4 | L99 Engine Tech

Technical discussion for the LTx Gen II series motors.
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1993-2002 Camaro and Firebird/Trans Am specific tech.
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Say hi & tell us about yourself and your car here. New users are encouraged to post here first before accessing the other forums
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General Tech

Basic & general automotive tech discussion. For anything not specifically related to a particular powertrain or vehicle platform.
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  1. HPTuners programming for dummies

    PCM tuning & Computer Diagnostics
    Here is some info help you guys get started tuning with HPTuners. Credit to ozorowski, Keith from HPT, and WS6snake-eater from HPtuners bulletin board for compiling this basic info. DISABLE ALL TORQUE MANAGEMENT Your a hardcore racer now why do you need a computer to tell you how much power...
  2. Diagnose The Optispark

    LT1 | LT4 | L99 Engine Tech
    Since my car has been acting up here latley I've done a ton of research on how the ignition system works(opti icm coil ect...) I came across this video that ges details on how a opti aka abits works and how to diagnose it. It kinda bugs me in a way when ppl assume right off the bat when their...
  3. Question Making an LT1 300HP into a 425 HP motor

    LT1 | LT4 | L99 Engine Tech
    I am about to make some mods on my '93 LT Vette. I want to make it into a 425 HP motor, or better. I am going to an LT4 hot cam kit. I am boring the motor to a 383. I am replacing the stock exhaust with Borla exhaust. I am replacing the stock injectors with 30 pound injectors. I am also...
  4. 1972 402 from a truck... is this worth building?

    Classic Chevy Small Block & Big Block
    Hello.. I am new to Chevy's and I am looking for a decent engine / transmission for a new project. I ran across a 1972 chevy truck with an original 402 big block with a 400 transmission. My only concern is that these engines were so detuned by this time that I may have to spend some serious...
  5. How To Remove A.I.R. On LT1 With Pics

    LT1 | LT4 | L99 Engine Tech
    How To Remove A.I.R. On LT1 With Pics I did a lot of searching for a good how-to on this and never found one with pics. I found one for LS1 with pics, but it looks like they have it easier than we do. So if something already exists, I apologize for the duplication. Hopefully someone will get...
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