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Ignitions and Electrical Ignition Boxes and Components

Torqhead

Ignition System

$1,349.95 $899.95 Save $450.00

SKU: LT-DIS

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In Stock
Ships by Aug 6
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30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

This intelligent, plug-and-play solution retains your stock LT era PCM (OBD1 or OBD2) from 1992-1997, providing the simplest, most reliable, and high-performance method to modernize your ignition. It's an ideal solution for those tired of Optispark issues or seeking enhanced performance, offering modern technology with OEM compatibility. How it works: The LT-DIS utilizes modern hall effect crank and cam position sensors to determine engine position, generating LS-based 24x crank and 1x cam signals. A precision-engineered sensing unit, which installs in place of the Optispark, contains a crank-mounted 24x reluctor and a 1x cam reluctor. The system precisely converts these signals in real-time to the high and low resolution "OPTIspark" signals your factory PCM expects. It then receives the ignition signal from the PCM and distributes spark command to individual coil packs via a plug-and-play harness, ensuring improved ignition energy and reliability. The LT-DIS offers advanced features, including Bluetooth connectivity and a mobile app for continuous monitoring of system data, ignition parameters, and diagnostics. A built-in logic analyzer allows for viewing and monitoring important signals without additional tools. The base kit includes the LT-DIS Sensing Unit (with sensors and main brain), Keyed Crank Hub with reluctor, Crank Sensor alignment tool and shims, System Harness, Power Module, Dash Module, and mounting hardware. Optional add-ons like coil bracket assemblies and spark plug wire kits are also available. Key benefits of the LT-DIS include the complete elimination of the Optispark, ICM, and single coil, while retaining your stock LT1 PCM. It requires no tuning, uses existing PCM and calibration, and needs no internal engine modifications. Installation is straightforward with basic tools, and no timing cover removal is necessary. The electronics are fully sealed, water/chemical resistant, and vibration-resistant, tested to over 10,000 RPM. The system is US EPA 49 State compliant and supports future upgrade paths to alternate PCMs for performance tuning. It is compatible with ALL LT1/LT4/L99 engines, all years and all platforms, including Spline drive (1992-1994 Corvette, 1993-1994 Camaro/Firebird) and Pin Drive (1994-1996 Caprice/Impala/Fleetwood, 1995+ Corvette, 1995+ Camaro/Firebird) types.

MIA's Description

It retains your stock LT era PCM from 1992-1997, offering a simple, reliable, and high-performance solution for modernizing your ignition system. This system generates accurate 24x crank and 1x cam signals, converting them into the necessary Optispark signals for your factory PCM.

The LT-DIS system receives ignition signals from the PCM and distributes spark command to individual coil packs via a plug-and-play harness, providing improved ignition energy and reliability. It features Bluetooth connectivity and a mobile app for monitoring system data, ignition parameters, and diagnostics, along with an integrated logic analyzer. The kit includes the LT-DIS Sensing Unit, Keyed Crank Hub, Crank Sensor, System Harness, Power Module, Dash Module, and mounting hardware.

Fitment

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Available on iOS & Android

Specifications

BrandTorqhead
Part NumberLT-DIS
CategoryIgnitions and Electrical

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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