Redline Rebuild: Tearing Down a Rover SD1 V-8 Engine for More Power

Engine Removal and Initial Assessment

• 🚀 The project begins with the removal of the V-8 engine from a 1980 Rover SD1, owned by Jason Cammisa.
• 🎯 The goal is to double the engine's horsepower, taking it from a smog-choked 133 HP to over 250 HP.
• ⚠️ Initial inspection reveals a failed water pump bearing and a worn fan belt, indicating areas needing immediate attention.

Disassembly Challenges and Observations

• 🧩 The engine's disassembly is described as a complex puzzle, with specific orders of operations required to remove components like the power steering pump.
• 🛠️ A stubborn bolt on the water pump housing required cutting off the head and using heat to remove it, highlighting the challenges of seized components.
• 🔍 The condition of the engine is assessed during teardown, noting oil leaks likely originating from valve cover gaskets rather than the oil pan.

Cylinder Head and Block Inspection

• ✨ The aluminum cylinder heads are noted for their light weight and good condition, showing no signs of head gasket failure.
• 🧊 An unusual crystallization in the coolant is observed, suggesting a potential issue with the cooling system mixture.
• ✅ The engine block shows good condition with visible crosshatching in the cylinders, indicating minimal wear.

Internal Component Analysis and Power Strategy

• 📉 Main bearings show significant wear, particularly towards the rear of the engine, indicating it was time for replacement.
• 💡 The plan to increase horsepower involves raising the compression ratio from 8.1:1 to the upper nines (9.5-10:1) and improving cylinder head flow.
• ⚙️ A camshaft upgrade will be necessary to complement the increased compression and improved airflow.
• ❓ The strategy for the fueling system remains to be determined, pending an understanding of the factory computer and injector capabilities.