Hi Guys said I'd report back on progress with my Datsun Spirit engine installation at Z Farm
well it's taken a while, but the engine & re-worked suspension is now installed, and Z Farm tell me they'll have it on the rolling road shortly for a basic pre-run in setup...
I've uploaded some pics from Z Farm, and from Datsun Spirit showing the build process (images may take time to be approved)
Here's the Engine specs from the Datsun Spirit Manual:
Overall Spec
L28 (N42) block + N42 Cylinder Head base
89mm (bore) x 79mm (stroke) = 2949cc (commonly known as a 3liter setup)
Combustion Chamber Volume: appx 31.5cc
Head gasket: Kameari Engine Works, Multi-Layered Metal Head Gasket (90.5mm x 1.2)
Piston above deck: 0.315mm
Piston volume: 5.2cc
Compression ratio: 11.8 : 1
Main cap Bolts Tightening Torque: 85N/m (High Strength Cap bolts)
Conn-rod Bolts Tightening Torque: 68N/m (3/8 ARP2000 Bolts)
Head Bolts Tightening Torque: 85N/m (Nissan Turbo bolts)
Main cap Bearings: STD
Connecting rod Bearings: STD
Camshaft & Valve Timing
Camshaft: Stage III
Duration 290
Max Valve lift: .495 (12.6mm)
Lobe Center: 106 (IN: 104)
Valve Timing @ 0.50” lift: IN: 18 BTDC, 46 ABDT, EX: 14 ATDC, 50 BBDC
Valve Clearance: IN: 0.08” EX: 0.08” (Cold)
Lash pads: IN: 7.0mm) EX: 7.0mm (Cam towers shimmed by 1.5mm)
Bottom End
Block: N42 Block, 89mm bore
Crankshaft: L28 crankshaft, straightened to within 2/100mm. STD undersize, journals polished
Rods: Datsun Spirit, 139.5mm H-beam rods
Pistons: Datsun Spirit, 89x29mm pistons.
Headgasket: Multi-layered metal head gasket 90.5mm bore, 1.65mm thick
Oil pump: Rebuild, and modified to higher pressure setup. It is important to select proper oil with high ZDDP content.
Will let you know how it goes...
well it's taken a while, but the engine & re-worked suspension is now installed, and Z Farm tell me they'll have it on the rolling road shortly for a basic pre-run in setup...
I've uploaded some pics from Z Farm, and from Datsun Spirit showing the build process (images may take time to be approved)
Here's the Engine specs from the Datsun Spirit Manual:
Overall Spec
L28 (N42) block + N42 Cylinder Head base
89mm (bore) x 79mm (stroke) = 2949cc (commonly known as a 3liter setup)
Combustion Chamber Volume: appx 31.5cc
Head gasket: Kameari Engine Works, Multi-Layered Metal Head Gasket (90.5mm x 1.2)
Piston above deck: 0.315mm
Piston volume: 5.2cc
Compression ratio: 11.8 : 1
Main cap Bolts Tightening Torque: 85N/m (High Strength Cap bolts)
Conn-rod Bolts Tightening Torque: 68N/m (3/8 ARP2000 Bolts)
Head Bolts Tightening Torque: 85N/m (Nissan Turbo bolts)
Main cap Bearings: STD
Connecting rod Bearings: STD
Camshaft & Valve Timing
Camshaft: Stage III
Duration 290
Max Valve lift: .495 (12.6mm)
Lobe Center: 106 (IN: 104)
Valve Timing @ 0.50” lift: IN: 18 BTDC, 46 ABDT, EX: 14 ATDC, 50 BBDC
Valve Clearance: IN: 0.08” EX: 0.08” (Cold)
Lash pads: IN: 7.0mm) EX: 7.0mm (Cam towers shimmed by 1.5mm)
Bottom End
Block: N42 Block, 89mm bore
Crankshaft: L28 crankshaft, straightened to within 2/100mm. STD undersize, journals polished
Rods: Datsun Spirit, 139.5mm H-beam rods
Pistons: Datsun Spirit, 89x29mm pistons.
Headgasket: Multi-layered metal head gasket 90.5mm bore, 1.65mm thick
Oil pump: Rebuild, and modified to higher pressure setup. It is important to select proper oil with high ZDDP content.
Will let you know how it goes...