Here's a breakdown of what's involved, highlighting the complexity:
* No Direct Bolt-on Kit: There isn't a readily available, off-the-shelf kit designed to install an Eaton M90 on a 1997 Grand Prix GT's 3.8L Series II engine. You'll be dealing with a custom installation.
* Extensive Fabrication: You'll need to fabricate or adapt many components, including:
* Manifold: A custom intake manifold is essential to connect the supercharger to the engine's intake ports.
* Bracing and Mounting: Securely mounting the supercharger to the engine requires custom brackets and possibly reinforcement of the engine bay.
* Belt Routing and Tensioner: You'll need to design a system for the supercharger's drive belt, potentially requiring a new tensioner and pulley system.
* Intercooler (Highly Recommended): An intercooler is crucial to cool the compressed air before it enters the engine. This will involve significant plumbing and mounting work.
* Fuel System Upgrades: The engine will require more fuel to support the increased power. This might involve larger fuel injectors, a fuel pump upgrade, and possibly a fuel management system (e.g., aftermarket ECU tuning).
* Exhaust System Modifications: A free-flowing exhaust system will help the engine breathe better under boost.
* Engine Management: The stock engine computer (PCM) isn't designed for forced induction. You'll almost certainly need a standalone engine management system or professional tuning to adjust fuel delivery, ignition timing, and other parameters to prevent damage to the engine.
* Safety Considerations: Increased power and pressure put a strain on many engine components. Consider strengthening connecting rods, upgrading the clutch, and potentially reinforcing the transmission.
In short: This project is best left to experienced engine builders or highly skilled mechanics familiar with forced induction systems. Attempting this without the proper knowledge and tools is extremely risky and could result in significant engine damage or even a catastrophic failure.
Instead of attempting this yourself, consider these alternatives:
* Professional Installation: Find a reputable shop specializing in forced induction installations. They have the expertise, tools, and parts to do this safely and correctly.
* Pre-Assembled Supercharger Kits (if available): Research thoroughly to see if any kits exist for similar vehicles that *might* be adaptable. However, this is unlikely for the 1997 Grand Prix GT.
* Different Supercharger: Explore supercharger kits specifically designed for the 1997 Grand Prix GT's 3.8L engine. This would significantly simplify the process.
Before starting any work, thoroughly research the specifics of your vehicle and the chosen supercharger. This project requires careful planning and execution.
