Yes, you can upgrade a reconditioned VW Beetle engine for better performance, and there are several ways to do so while maintaining reliability. A reconditioned engine provides a solid foundation, as it has been thoroughly rebuilt to near-new condition with new or refurbished parts. This makes it an ideal candidate for performance enhancements.
Upgrading Options:
Increased Displacement: One of the most common upgrades is increasing the engine displacement. For example, upgrading from a 1300cc or 1600cc to a larger bore, such as 1776cc or 1835cc, can provide a significant boost in power.
Here are the main parts involved in increasing engine displacement:
Cylinders and Pistons:
Bore: The bore is the diameter of the engine’s cylinders. By increasing the bore size (i.e., using larger diameter cylinders), you increase the displacement. This requires boring out the existing cylinders to a larger size or replacing the cylinder barrels with those of a larger bore.
Pistons:
When the bore is increased, larger pistons must be used to fit the expanded cylinder diameter. These larger pistons will move a greater volume of air and fuel mixture.
Crankshaft:
Stroke: The stroke is the distance the piston travels up and down within the cylinder. By increasing the stroke (using a crankshaft with a longer throw), the pistons move further, thus increasing the displacement. This often requires a different crankshaft with a larger throw, which moves the piston further down and up in the cylinder.
Connecting Rods:
These may also need to be adjusted or replaced to accommodate the increased stroke. Longer or specially designed rods ensure the pistons move correctly within the new stroke dimensions.
Cylinder Heads:
In some cases, modifications to the cylinder heads are needed to accommodate larger bore cylinders, ensuring the valves and combustion chambers match the new dimensions.
Other worthy upgrades include :
Dual Carburettors:
Adding dual carburettors enhances fuel delivery, allowing the engine to produce more power, particularly at higher RPMs. This is a popular upgrade for those seeking better throttle response and acceleration.
High-Flow Exhaust:
Upgrading to a high-flow exhaust system reduces backpressure, allowing the engine to expel exhaust gases more efficiently, which can lead to performance gains. For a range of reconditioned engines and performance parts, visit Just Kampers to explore the options that best suit your VW Beetle.