Difference between revisions of "Engine Specs - S65 ValveTrain"

Revision as of 03:13, 17 April 2019 (view source) Rcollins (talk | contribs) (→‎Supertech Valve Springs (Currently Sold by BE)) ← Older edit		Revision as of 03:18, 17 April 2019 (view source) Rcollins (talk | contribs) (→‎Factory Valve Springs) Newer edit →
Line 357:		Line 357:
	|-		|-
	|Maximum Lift		|Maximum Lift
−	|TBD	+	|12.00
−	|TBD	+	|0.0475
	|-		|-

---

Revision as of 03:18, 17 April 2019

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

Cam Follower Specifications

Factory Cam Followers (Original Hydraulic)

	MM	SAE
Type	Hydraulic
Cup Type	Radius
Diameter	28.000	1.596
Weight	29.50 g	1.041 oz

Factory Cam Followers (Mechanical Conversion)

	MM	SAE
Type	Mechanical
Cup Type	Radius
Diameter	28.000	1.596
Weight	30.13 g	1.063 oz

Del West Cam Followers

	MM	SAE
Type	Mechanical
Cup Type	Radius
Diameter	32.000	1.260
Weight	25.00 g	0.882 oz

Valve Spring Retainer Specifications

Factory Valve Spring Retainers

Measured Specs	MM	SAE
Material	TBD
Outer Diameter	TBD	TBD
Inner Diameter	TBD	TBD
Thickness	TBD	TBD
Weight	TBD	TBD

Schrick Valve Spring Retainers

Measured Specs	MM	SAE
Material	Titanium
Outer Diameter	25.85	1.018
Inner Diameter	18.300	0.720
Thickness	7.500	0.295
Weight	6.00 g	0.212 oz

Valve Spring Specifications

Metric valve seat pressure is measured in Newtons.

Factory Valve Springs

Measured Specs	MM	SAE
Free Height	49.50	1.949
Wire Diameter	3.40	0.134
Coil Diameter (top)	22.25	0.876
Coil Diameter (bot)	26.50	1.043
Installed Height (L1)	41.90	1.650
Lift Height (L2)	12.00	0.475
Seat Pressure @ L1	267	60
Seat Pressure @ L2	801	180
Lift (L2 to Coil Bind)	1.524	0.060
Maximum Lift	12.00	0.0475
Spring Rate	44.500	252.63
Spring Rate (lbs/mm)	9.946
Weight	48.21	1.71

Eibach Valve Springs (Originally Sold* by BE, Dinan, RD Sport)

Measured Specs	MM	SAE
Free Height	48.500	1.909
Wire Diameter	4.000	0.157
Coil Diameter (top)	22.000	0.866
Coil Diameter (bot)	26.200	1.031
Installed Height (L1)	41.90	1.650
Lift Height (L2)	12.00	0.475
Seat Pressure @ L1	400	90
Seat Pressure @ L2	1045	235
Lift: L2 to Coil Bind	3.175	0.125
Maximum Lift	13.000	0.512
Spring Rate	53.75	305.26
Spring Rate (lbs/mm)	12.018
Weight	40.53 g	1.430 oz

NOTE *: These valve springs are no longer available.

Supertech Valve Springs (Currently Sold by BE)

Manufacturer Specs	MM	SAE
Free Height	50.500	1.988
Wire Diameter	3.900	0.154
Coil Diameter (top)	22.800	0.898
Coil Diameter (bot)	27.700	1.091
Installed Height (L1)	41.90	1.650
Lift Height (L2)	12.000	0.475
Seat Pressure @ L1	400	90
Seat Pressure @ L2	845	190
Lift: L2 to Coil Bind	3.175	0.125
Maximum Lift	13.000	0.512
Spring Rate	37.08	210.52
Spring Rate (lbs/mm)	8.288
Weight	42.92 g	1.514 oz

Schrick Valve Springs

Manufacturer Specs	MM	SAE
Free Height	52.500	2.067
Wire Diameter	3.800	0.150
Coil Diameter (top)	26.000	1.024
Coil Diameter (bot)	26.000	1.024
Installed Height (L1)	41.90	1.650
Lift Height (L2)	12.000	0.475
Seat Pressure @ L1	400	90
Seat Pressure @ L2	934	210
Lift: L2 to Coil Bind	3.175	0.125
Maximum Lift	13.000	0.512
Spring Rate	44.50	252.63
Spring Rate (lbs/mm)	9.946
Weight	38.20 g	1.347 oz