Suzuki Hayabusa Turbo Engine Upgrade List
We receive numerous calls each week, inquiring about the essential engine components required for turbocharging the Suzuki Hayabusa engine. While the specifics vary for each project, we've compiled a comprehensive list of top-quality products, all available at Schnitz Racing, to meet your turbo build needs.
The stock Suzuki Hayabusa engine is turbocharger-compatible, with the level of boost it can handle depending on factors like engine generation, mileage, and wear. Here's a general overview:
- Hayabusa 99-07 (Gen 1): Maximum 6psi, with weak spots identified in piston and valve springs.
- Hayabusa 08-20 (Gen 2): Maximum 4psi, with weak spots in pistons and valve springs.
- Hayabusa 2022 (Gen 3): Maximum 4psi, with weak spots in pistons and valve springs.
Stage 1 (up to 350hp) Engine Build List:
- Valve Springs: APE 47psi Valve Spring Kit - Boosts spring pressure to 47psi from the stock 34psi to prevent valve float under increased intake pressure.
- Titanium Retainers: APE Titanium Retainers - Replaces stock aluminum retainers prone to cracking and failure at higher spring pressures.
- Slotted Cam Sprockets: APE Adjustable Cam Sprockets - Necessary for adjusting cam timing affected by the cylinder base spacer.
- Adjustable Cam Chain Tensioner: Compensates for reduced cam chain stretch caused by the base spacer installation.
Cam Chain Tensioner Hayabusa (99-07)
Cam Chain Tensioner Hayabusa (08+)
- Cylinder Head Studs: APE Cylinder Studs: Ensures a tight seal under added boost pressure and power output.
- Cylinder Head Stud Nuts: APE Head Nuts: Required when using cylinder studs.
- Cylinder Head Nut Washers: Used in the absence of removable cylinder bolt washers in the 08+ Hayabusa engine.
- Base Spacer Gasket: Cometic .080" Base Spacer - Lowers engine compression to around 9:1, allowing for higher boost levels without risking piston damage.
- Base Gasket: Cometic .010" Steel Base Gasket - Placed on top of the base spacer to seal spacer to bottom of cylinder.
- Head Gasket: High-quality Cometic MLS head gasket.
- Engine Case Gasket Set: Covers all engine covers that need removal.
- Exhaust Gaskets: Ensures a tight seal for the manifold.
- Clutch Plate Kit: Consider adding a fresh kit with these upgrades.
- Oil Pump Gear: High-speed gear for increased oil volume to engine components and the turbo.
- Oil Pressure Valve: Higher set pressure than stock for increased total oil pressure.
- Lifetime Oil Filter: Billet construction for durability, allowing easy inspection for debris under extreme oil pressure conditions.
- Clutch Plate Kit: Consider adding a fresh kit with these upgrades.
- HD Clutch Springs: Essential for ensuring the clutch can handle the increased power.
Suzuki Hayabusa (99-07)
Suzuki Hayabusa (08-20)
Stage 2 (500hp) Engine Build List:
- Valve Springs: APE 65psi Valve Spring Kit - Boosts spring pressure to 65psi from the stock 34psi to prevent valve float under increased intake pressure.
- Titanium Retainers: APE Titanium Retainers - Replaces stock aluminum retainers prone to cracking and failure at higher spring pressures.
- Slotted Cam Sprockets: APE Adjustable Cam Sprockets - Necessary for adjusting cam timing for best power.
- Adjustable Cam Chain Tensioner: Required to set chain tension and prevent it from loosening.
Cam Chain Tensioner Hayabusa (99-07)
Cam Chain Tensioner Hayabusa (08+)
- Cylinder Head Studs: APE Cylinder Studs: Ensures a tight seal under added boost pressure and power output.
- Cylinder Head Stud Nuts: APE Head Nuts: Required when using cylinder studs.
- Cylinder Head Nut Washers: Used in the absence of removable cylinder bolt washers in the 08+ Hayabusa engine.
- Stainless Steel Exhaust Valves: Gen 2/3 Hayabusa use Titanium Exhaust Valves. These wear quickly with the increase exhaust gas temperatures.
- Turbo Piston Kit: 81-83mm max bore recommended. Larger sizes reduce head gasket material between cylinders.
CP Pistons
JE Pistons
Wiseco Pistons
Wossner Pistons - Cylinder Block: The stock 81mm bore block may be ok to reuse or to have bored. But, we have brand now blocks ready to bolt on with no need for shipping or replating.
- Heavy Duty Connecting Rods: Stock rods and bolts are going to fail above 350hp. Not if, but when.
Carrillo Con Rods
Wossner Con Rods - Main Bearings: Best to replace these with fresh bearings.
- Rod Bearings: You’ll need to measure your crankshaft and HD rods to determine the size/color before ordering.
- Main Bearing Studs: Replaces the main bearing bolts with HD studs and nuts to keep the engine sealed.
- Base Gasket: Cometic .010" Steel Base Gasket - Placed on top of the base spacer to seal spacer to bottom of cylinder.
- Head Gasket: High-quality Cometic MLS head gasket.
- Engine Case Gasket Set: Covers all engine covers that need removal.
- Exhaust Gaskets: Ensures a tight seal for the manifold.
- Oil Pump Gear: High-speed gear for increased oil volume to engine components and the turbo.
- Oil Pressure Valve: Higher set pressure than stock for increased total oil pressure.
- Lifetime Oil Filter: Billet construction for durability, allowing easy inspection for debris under extreme oil pressure.
- Clutch Plate Kit: Consider adding a fresh kit with these upgrades.
- Lockup Style Clutch: Clutch Springs will not hold this power level. The use of a lockup is recommended
Good: Standard Lockup
Better: Multistage Lockup
Best: RPM Driven Lockup
Stage 3 (700hp) Engine Build List:
- Valve Springs: 70psi Valve Spring Kit - Boosts spring pressure to 70psi from the stock 34psi to prevent valve float under increased intake pressure.
- Titanium Retainers: APE Titanium Retainers - Replaces stock aluminum retainers prone to cracking and failure at higher spring pressures.
- Slotted Cam Sprockets: APE Adjustable Cam Sprockets - Necessary for adjusting cam timing for best power.
- Adjustable Cam Chain Tensioner: Required to set chain tension and prevent it from loosening.
Cam Chain Tensioner Hayabusa (99-07)
Cam Chain Tensioner Hayabusa (08+)
- Cylinder Head Studs: APE Cylinder Studs: Ensures a tight seal under added boost pressure and power output.
- Cylinder Head Stud Nuts: APE Head Nuts: Required when using cylinder studs.
- Cylinder Head Nut Washers: Used in the absence of removable cylinder bolt washers in the 08+ Hayabusa engine.
- Stainless Steel Exhaust Valves: Gen 2/3 Hayabusa use Titanium Exhaust Valves. These wear quickly with the increase exhaust gas temperatures.
- Turbo Piston Kit: 81-83mm max bore recommended. Larger sizes reduce head gasket material between cylinders.
CP Pistons
JE Pistons
Wiseco Pistons
Wossner Pistons - Cylinder Block: The stock 81mm bore block may be ok to reuse or to have bored. But, we have brand now blocks ready to bolt on with no need for shipping or replating.
- Heavy Duty Connecting Rods: Stock rods and bolts are going to fail above 350hp. Not if, but when.
Carrillo Con Rods
Wossner Con Rods - Main Bearings: Best to replace these with fresh bearings.
- Rod Bearings: You’ll need to measure your crankshaft and HD rods to determine the size/color before ordering.
- Main Bearing Studs: Replaces the main bearing bolts with HD studs and nuts to keep the engine sealed.
- HD Transmission Output Shaft: Stock shafts have bent and twisted at this power level, especially when drag racing.
- Tool Steel Shift Shafts: Prevents flexing for a solid gear change.
- Billet Shift Fork Shafts: Heat Treated and can “spring back” if caught between two gears. Great for Auto-style transmissions.
- Base Gasket: Cometic .010" Steel Base Gasket - Placed on top of the base spacer to seal spacer to bottom of cylinder.
- Head Gasket: High-quality Cometic MLS head gasket.
- Engine Case Gasket Set: Covers all engine covers that need removal.
- Exhaust Gaskets: Ensures a tight seal for the manifold.
- Oil Pump Gear: High-speed gear for increased oil volume to engine components and the turbo.
- Oil Pressure Valve: Higher set pressure than stock for increased total oil pressure.
- Lifetime Oil Filter: Billet construction for durability, allowing easy inspection for debris under extreme oil pressure.
- Clutch Plate Kit: Consider adding a fresh kit with these upgrades.
- Lockup Style Clutch: Clutch Springs will not hold this power level. The use of a lockup is recommended
Good: Standard Lockup
Better: Multistage Lockup
Best: RPM Driven Lockup