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LT1 | LT4 | L99 Engine Tech

Technical discussion for the LTx Gen II series motors.
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4th Gen F-Body

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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  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. New LT1!!

    LT1 | LT4 | L99 Engine Tech
    I just ordered a "NEW SHORT BLOCK 4 BOLT MAIN LT1 ENGINE" from Powertrain Products, Inc. It looks like a good deal and i have read good things about them. Has anyone here ever bought one of these from them? Let me know your experience. Here are a few pictures and a link...
  3. 700R4/4L60 - Determining what year it is from case codes

    Automatic Transmissions | Torque Converters
    Here is how to year date a 700R4/4L60 transmission. It can also be used to date 4L60E transmissions if you continue the date progression. 4L60E's use the letter D as the 3rd digit of the 3 letter model code, where 700R4/4L60 uses a M. To go into the 4L60E years just go up from the 1993 code...
  4. Conversion. Optispark to coilpack?

    4th Gen F-Body
    My cousin told me he heard of people with LT1's converting the optispark ignition to a coil pack system. Anyone ever hear of this and how much does it cost? Is it a better route then replacing the opti?
  5. Testing the coil with an air gap tester.

    LT1 | LT4 | L99 Engine Tech
    I'm having random misfire code and the engine has a little shake to it. So it's got a miss. Since everything is new from the opti ( with mitsubishi sensor ) to the plugs, I'm pretty sure it's none of that. I already found a dead injector and replaced that, now all 8 are working properly ( used a...
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