Engine Specs - S65 ValveTrain

From Wiki-DIY
Jump to: navigation, search


Factory Camshaft Specifications

MM SAE
Base Circle 30.000 1.1811
Lift 11.400 0.4488

Intake Open -1.000 ATDC
Intake Close 102.000 ABC
Exhaust Open 81.500 BBC
Exhaust Close 14.000 ATC

Schrick '284' Camshaft Specifications

Base Circle: MM (SAE)
Lift: MM (SAE)
Opening Angle (° CA)
Spread
Intake Opens
Intake Closes
Exhaust Opens
Exhaust Closes
Intake Cam 30.000
(1.1811)
12.000
(0.4724)
284 132-74 12 90 68 36
Exhaust Cam 30.000
(1.1811)
12.000
(0.4724)
284 134-86 96 8 48 56

Schrick '292' Camshaft Specifications

MM SAE
Base Circle 30.000 1.1811
Lift 11.400 0.4488

Intake Open -1.000 ATDC
Intake Close 102.000 ABC
Exhaust Open 81.500 BBC
Exhaust Close 14.000 ATC

Valve Guide Specifications

MM SAE
Intake Guide 5.017 0.1975
Valve Stem 4.971 0.1957
Clearance 0.046 0.0018

MM SAE
Exhaust Guide 5.017 0.1975
Valve Stem 4.966 0.1955
Clearance 0.051 0.0020

Valve Spring Specifications

Factory Valve Springs

MM SAE
Free Height 41.850 1.648
Seat Pressure 24.948 55.000
Pressure @ 0.450 79.379 175.000
Lift @ Coil Bind 2.413 0.095

BE-Design Valve Springs

MM SAE
Free Height 48.300 1.902
Wire Diameter 4.000 0.157
Coil Diameter (@top) 22.000 0.866
Coil Diameter (@base) 26.000 1.024
Seat Pressure 40.823 90.00
Pressure @ 0.450 106.594 235.00
Lift @ Coil Bind 3.302 0.130
  • BE-Design valve springs are sourced from the same manufacturer as Schrick valve springs. Schrick does not design or make the valve springs on their own.

Schrick Valve Springs

MM SAE
Free Height 48.300 1.902
Wire Diameter 4.000 0.157
Coil Diameter (@top) 22.000 0.866
Coil Diameter (@base) 26.000 1.024
Seat Pressure 40.823 90.00
Pressure @ 0.450 106.594 235.00
Lift @ Coil Bind 3.302 0.130