Can someone check if this looks right
03-26-2007, 11:05 PM
#1
Staging Lane
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Can someone check if this looks right Just trying to double check myself here.
F13 cam, Patriot 59cc heads, diamond 4.03 -2cc pistons, eagle 6.098 rods, .051 4.040 gaskets, estimating .008 out the hole
0.006 0.050 0.200
Intake Duration - ID (first number) 280 230 151
Exhaust Duration - ED (second number) 284 232 150
Lobe Center Angle - LCA (also known as LSA) 112 112 112
Intake Centerline - ICL (LSA - degrees of advance e.g. 114+2 = 112) 108 108 108
Intake Valve opens - IVO 32 7 -32.5 BTDC (- indicates ATDC)
Intake Valve closes - IVC 68 43 3.5 ABDC
Exhaust Valve Opens - EVO 78 52 11 BBDC
Exhaust Valve Closes - EVC 26 0 -41 ATDC (- indicates BTDC)
Exhaust Centerline - ECL 116 116 116
Overlap 58 7 -73.5 degrees
Bore 4.03
ST = Stroke 3.622
RL = Rod Length 6.098
Number of cylinders 8
Deck Height (how much pistons come out of the hole) 0.008
Piston Dome or Dish (- for a dome + for a dish) 2
Compressed Head gasket thickness 0.051
Cylinder Head Chamber Volume 59
Static Compression Ratio 11.32 :1
Dynamic Compresion Ratio 8.77 :1
Rod to Stroke Ratio 1.68 :1
Bore to Stroke Ratio 1.11 :1
If this is right, is that DCR to high for 93 octane?
Any help greatly appreciated
F13 cam, Patriot 59cc heads, diamond 4.03 -2cc pistons, eagle 6.098 rods, .051 4.040 gaskets, estimating .008 out the hole
0.006 0.050 0.200
Intake Duration - ID (first number) 280 230 151
Exhaust Duration - ED (second number) 284 232 150
Lobe Center Angle - LCA (also known as LSA) 112 112 112
Intake Centerline - ICL (LSA - degrees of advance e.g. 114+2 = 112) 108 108 108
Intake Valve opens - IVO 32 7 -32.5 BTDC (- indicates ATDC)
Intake Valve closes - IVC 68 43 3.5 ABDC
Exhaust Valve Opens - EVO 78 52 11 BBDC
Exhaust Valve Closes - EVC 26 0 -41 ATDC (- indicates BTDC)
Exhaust Centerline - ECL 116 116 116
Overlap 58 7 -73.5 degrees
Bore 4.03
ST = Stroke 3.622
RL = Rod Length 6.098
Number of cylinders 8
Deck Height (how much pistons come out of the hole) 0.008
Piston Dome or Dish (- for a dome + for a dish) 2
Compressed Head gasket thickness 0.051
Cylinder Head Chamber Volume 59
Static Compression Ratio 11.32 :1
Dynamic Compresion Ratio 8.77 :1
Rod to Stroke Ratio 1.68 :1
Bore to Stroke Ratio 1.11 :1
If this is right, is that DCR to high for 93 octane?
Any help greatly appreciated
sorry 
