PROTEC S20 Engine Tuning Plan

■ Engine tuning plan Stage 7

・ Forged, lightweight piston 84.5φ (2,320cc)
・ Chromoly full counter crank 69mm stroke
・ Chromoly H cross section long conrod (F112 metal)
・ Big sleeve pulley, crank, flywheel, clutch cover, dynamic balance piston, conrod (small) Weight balance, material high cam shaft, SCM valve lifter, valve, valve retainer, valve cotter, reinforced valve spring, shim, PBB valve guide, seat ring manufacturing special seat cut set length adjustment , combustion chamber processing & Volume adjustment, mirror finish , port polishing

■ Engine tuning plan Stage 6

・ Forged, lightweight piston 83.0φ (2,238cc)
・ Chromoly full counter crank 69mm stroke
・ Chromoly H cross section long conrod (F112 metal)
・ Pulley, crank, flywheel, clutch cover, dynamic balance piston, conrod (small end, Large end) Weight balance, material High cam shaft, SCM valve lifter, valve, valve retainer, valve cotter, reinforced valve spring, shim, PBB valve guide, seat ring production Special seat cut set length adjustment, combustion chamber processing & volume adjustment, Mirror finish / port polishing

■ Engine tuning plan Stage 5

・ Forged lightweight piston 84.5φ (2,112cc)
・ 84.5φ sleeve
・ Chromoly full counter crank
・ Chromoly H cross section long conrod (F112 metal)
・ Pulley, crank, flywheel, clutch cover, dynamic balance piston, conrod (small end) , Large end) Weight balance, material High cam shaft, SCM valve lifter, valve, valve retainer, valve cotter, reinforced valve spring, shim, PBB valve guide, seat ring production Special seat cut set length adjustment, combustion chamber processing and volume adjustment Mirror finish / Port polishing

■ Engine tuning plan Stage 4

・ Forged, lightweight piston 83.0φ (2,037cc)
・ Chromoly full counter crank
・ Chromoly H cross section long conrod (F112 metal)
・ Pulley, crank, flywheel, clutch cover, dynamic balance piston, conrod (small end, large end) Part) Weight balance, material High cam shaft, SCM valve lifter, valve, valve retainer, valve cotter, reinforced valve spring, shim, PBB valve guide, seat ring production Special seat cut set length adjustment, combustion chamber processing and volume adjustment, mirror finish
・ Port polishing

■ Engine tuning plan Stage 3

The crankshaft uses normal. Others are the same as stage 4.

■ Engine tuning plan Stage 2

・ Forged, lightweight piston 82.5φ
・ Parent-child metal
・ Processing cam (lubrite treatment)
・ Valve
・ Valve cotter
・ Reinforced valve spring
・ SCM valve lifter
・ Sim
・ PBB valve guide
・ Seat ring replacement (lead-free specification)
・ Combustion chamber processing
・ Port polishing

■ Engine tuning plan Stage 1

・ Forged, lightweight piston 82.5φ
・ Parent-child metal
・ Valve
・ Valve guide
・ Valve spring
・ Valve seat ring (lead-free specification)
・ SCM valve lifter

■ Engine adjustment S20

・ Valve clearance adjustment
・ Cammetal replacement
・ Camshaft and lifter inspection
・ Carburetor adjustment, inspection
・ Ignition timing adjustment
・ Compression measurement
・ Plug B7ES replacement
・ Rocker cover P / K replacement

■ Engine adjustment L6

・ Valve clearance adjustment
・ Carburetor adjustment, inspection
・ Ignition timing adjustment
・ Compression measurement
・ Plug replacement