85 Corvette 350 TPI Auto Computer Chip

The HYPERTECH 85 Corvette 350 TPI Auto Computer Chip (part number 11541) is a tuning module engineered specifically for 1985 Chevrolet Corvette models equipped with the 350 cubic inch TPI (Tuned Port Injection) engine and automatic transmission. This chip reprograms the vehicle's engine control unit to optimize fuel delivery, ignition timing, and transmission shift characteristics for improved throttle response and overall drivability on the street.

The Street Runner calibration focuses on practical performance gains relevant to daily driving rather than track-oriented tuning. By adjusting the TPI fuel injection mapping and spark advance curves, the module enhances low-to-mid-range torque delivery where most street driving occurs. The automatic transmission programming refines shift points to work in harmony with the revised engine parameters, resulting in smoother power band utilization. The chip's compact form factor (5.25 x 2.25 x 7.5 inches, weighing 0.29 lbs) fits discreetly into the engine bay and connects directly to the vehicle's existing wiring harness without requiring additional external components or permanent modifications.

This is the product for C4 Corvette owners seeking improved engine efficiency and transmission response without full engine rebuild or complex intake modifications. HYPERTECH's Street Runner tuning addresses a specific need: maximizing the factory TPI system's potential while maintaining reliability and streetability. Original 1985 Corvette 350 TPI models benefit measurably from ECU optimization tuned to that engine's displacement, fuel injection design, and transmission control strategy. The chip remains a straightforward, reversible upgrade path for enthusiasts who want verified performance refinement backed by a manufacturer with established tuning expertise in the small-block Chevy platform.