CBR Parts Catalog

Engines

Air Filter

Note: May change sound, tone and/or volume Pros: Increases power output Cons: Nothing

Aspiration Conversion

Note: Allows converting between naturally aspirated, single turbocharger, twin turbocharger, quad turbocharger, centrifugal supercharger and/or positive-displacement supercharger Pros: Increases power output, can be further increased when upgraded Cons: Increased weight, with additional weight being added to accommodate a intercooler for turbochargers

Camshaft

Note: Non-diesel engines only! May change sound, tone and/or volume Pros: Increases power output at higher rev range and increases overrev durability Cons: Decreases power output at lower rev range and decreases overrev threshold

Displacement/Rotor Housing

Note: May change sound, tone and/or volume Pros: Increases power output, over-torque resilience, over-torque threshold, improved air cooling for air cooled engines (to an extend) Cons: Decreased oil/coolant capacity, liquid cooling efficiency and thermal efficiency

Exhaust/Muffler

Note: May change sound, tone and/or volume Pros: Increases power output, can reduce weight Cons: Increases exhaust particles

Flywheel

Note: Nothing... Or is there? Pros: Less inertia, thus improving engine response Cons: Easier to stall the engine and decreased operating smoothness

Headers/Manifold - Not Confirmed!

Note: May change sound, tone and/or volume Pros: Potentially increases power output Cons: Nothing

Intercooler - Not Confirmed!

Note: Turbocharged engines only! Pros: Increases power output at higher rev range, improves cooling for the turbocharger Cons: Increases weight.

Lubrication

Note: Allows changing/conversion between dry sump and wet sump systems Pros: Increased G-force tolerance before oil starvation occurs Cons: Nothing

Oil Cooler - Not Confirmed!

Note: Nothing Pros: Increases oil capacity and thus improves cooling efficiency Cons: Can cause oil starvation if damaged for extended periods of time despite oil pan being intact

Pistons/Rotors

Note: Nothing Pros: Increases power output, improved resilience against oil starvation damage and decreased low RPM inertia Cons: Nothing

Radiator - Not Confirmed!

Note: Liquid cooled engines only! Pros: Improves cooling efficiency, potentially increases liquid capacity Cons: Overheat imminent if damaged or overworked for extended periods of time

Restrictor Plate

Note: Racing engines only! Pros: Increases power output Cons: Nothing

Valves

Note: Piston engines only! Pros: Increases power output and decreased high RPM inertia Cons: Nothing

Transmissions/Transaxles

Clutches

Note: Clutched gearboxes only! Pros: Improves clutching speed and increases maximum torque threshold before slipping Cons: Decreases shift smoothness, easier to stall, slips if over-torqued and does not recover if damaged

Torque Converters

Note: Automatic gearboxes only! Pros: Decreases minimum RPM to engage and increases maximum torque threshold before slipping Cons: Decreases launch smoothness, slips if over-torqued but does not get damaged after sustained slipping. Must be cooled down after extreme slipping to recover to full capacity

Driveshaft - Not Confirmed!

Note: Not available on all vehicles Pros: Decreased weight and inertia, thus improving acceleration Cons: Potentially easier to break if damaged

Gearboxes

Note: Not all engines have all types available! Pros: Improved shift times, decreased inertia and parasitic losses, thus improving acceleration and potentially increasing top speed Cons: Less tolerant towards gear grinding, might require more precise rev matching to avoid damage to shift linkage and gear synchro's

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