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LT1 | LT4 | L99 Engine Tech

Technical discussion for the LTx Gen II series motors.
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Staging Lane Lounge

Lounge for general & off-topic discussion forum.
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4th Gen F-Body

1993-2002 Camaro and Firebird/Trans Am specific tech.
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Parts For Sale

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New User Introductions

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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Trending Discussions All Trending Discussions →
  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 to the lt1 world

    New User Introductions
    I'm a squarebody enthusiast at heart so I know more about the old school small blocks than the lt1 or ls motors. Just recently had a 94 Caprice 9c1 with an lt1 given to me by a buddy of mine and it seems like it's gonna be some fun.
  3. I just wanna run mid 12's

    Staging Lane Lounge
    I just wanna run mid 12's Bolt Ons All I want is a 12.5 slip lol. Car ran 13.3 @102 last time 1.8x 60' with a 2" exhaust pinch over the axle, a bad fuel pump, and no electric water pump/true duals. Here's a 20-90 pull as it sits. Still 3.23 gears. I wanna go back so badly and test it out. Still...
  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. Bouncing idle, surging at low rpms, loss of power. ONLY happens when engine is warm, AFTER going full throttle

    LT1 | LT4 | L99 Engine Tech
    93 LT1 85k miles. I've been trying to chase this down since June (not a daily driver). So the car seems to run great, good power etc from cold start to closed loop/operating temperature. But I go full throttle once after getting up to temp and it starts acting nutty. At a stop, idle bounces from...
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