Basic Engine Information
Posted: Thu Dec 29, 2005 5:51 am
Nic elittle EJ22 pdf with color pictures:
http://www.mygyroplane.com/overhaulej22.pdf
EJ22t
Bore: 96.90mm
Stroke: 75.0mm
Rod length:131.25mm?
rod stroke ratio:1.75
Piston dish volume:28.0cc
deck height:
head chamber volume:
gasket thickness:
Static CR:8.0:1
Dynamic CR:
Compresion height:
port volumes:?
CAMS
EJ257
Bore: 99.50mm
Stroke:79.00mm
Rod length:130.43mm
deck height: 201.0mm
head chamber volume:57.0cc
gasket thickness:.6mm
static CR:8.09:1
CAMS
Intake valve timing
Opening Max. retard 5° ATDC
Max. advance 15° BTDC
Closing Max. retard 65° ABDC
Max. advance 45° ABDC
Exhaust valve timing
Opening 55° BBDC
Closing 5° ATDC
Cam lobe height mm (in)
Intake STD 46.55 — 46.65 (1.833 — 1.837)
Limit 46.45(1.829)
Exhaust STD 46.75 — 46.85 (1.841 — 1.844)
Limit 46.65(1.837)
EJ20t 2002 wrx specs
bore: 92.0mm
stroke: 75.0mm
rod length: 130.43mm?
rod stroke ratio:
deck height:
camber volume: 51.5cc
static CR: 8.0:1
dynamic CR:
Gasket: .6mm
CAMS
intake open:10 BTDC
intake close:50 ABDC
exhaust open:53 BTDC
exhaust close:7 ABDC
lobe height intake: 46.30+/- .05mm
lobe height exhuast: 46.20 +/- .05mm
EJ18tttt
1,000 hp i think i read somewhere
http://www.mygyroplane.com/overhaulej22.pdf
EJ22t
Bore: 96.90mm
Stroke: 75.0mm
Rod length:131.25mm?
rod stroke ratio:1.75
Piston dish volume:28.0cc
deck height:
head chamber volume:
gasket thickness:
Static CR:8.0:1
Dynamic CR:
Compresion height:
port volumes:?
CAMS
EJ257
Bore: 99.50mm
Stroke:79.00mm
Rod length:130.43mm
deck height: 201.0mm
head chamber volume:57.0cc
gasket thickness:.6mm
static CR:8.09:1
CAMS
Intake valve timing
Opening Max. retard 5° ATDC
Max. advance 15° BTDC
Closing Max. retard 65° ABDC
Max. advance 45° ABDC
Exhaust valve timing
Opening 55° BBDC
Closing 5° ATDC
Cam lobe height mm (in)
Intake STD 46.55 — 46.65 (1.833 — 1.837)
Limit 46.45(1.829)
Exhaust STD 46.75 — 46.85 (1.841 — 1.844)
Limit 46.65(1.837)
EJ20t 2002 wrx specs
bore: 92.0mm
stroke: 75.0mm
rod length: 130.43mm?
rod stroke ratio:
deck height:
camber volume: 51.5cc
static CR: 8.0:1
dynamic CR:
Gasket: .6mm
CAMS
intake open:10 BTDC
intake close:50 ABDC
exhaust open:53 BTDC
exhaust close:7 ABDC
lobe height intake: 46.30+/- .05mm
lobe height exhuast: 46.20 +/- .05mm
EJ18tttt
1,000 hp i think i read somewhere