I'm trying to get an accurate model of our 4.6L SC engines into Engine Analyzer and there is info I need, so I figured this is the most likely place to find someone who knows, or can at least find out this info. I'd be happy to share this database file with anyone else who has Engine Analyzer once its complete. Right now I have estimated values entered and the engine is making 413hp, and 390tq. The area I need most is the Cam specs cuz my power isn't peaking at the right RPM's. Who knows the correct stock cam specs?
Check my current answers for accuracy and fill in any blanks you can:
Bore: 3.55 in.
Stroke: 3.54 in.
Number of Cylinders: 8
Rod Length: 5.9331
Chamber type: ??? Choices are typical wedge, compact wedge, hemi, flathead (sidevalve), pent roof. Which do you guys think is most accurate?
Chamber CC's in head: ??
Piston dome CC's: ??
Gasket Thickness: ??
Gasket Bore Dia. : 3.55 in.
Deck Height Clearance: ??
Intake Valve layout: 2 valves & 2 separate ports
Intake Valve Dia: 1.457 in.
Average Port Dia in Inches: ??
Port Volume in CC's: ??
Port Length in Inches: ??
Flow Efficiency %: ??
Exhaust Valve Layout: 2 valves & 2 separate ports
Exhaust Valve Dia: 1.181 in.
Flow Efficiency %: ??
Intake Manifold type: Single Plenum EFI or Split Plenum EFI???
Intake Runner Dia: ??
Intake Runner Length: ??
Intake Flow Efficency %: ??
Throttlebody: Twin 58mm TB (936 cfm)
Exhaust Manifolds: Production Log-type Exhaust Manifolds
Exhaust System: Typical Production High Output V8 Dual Exhaust (450 cfm)
Cam Type: Typical Stock HO OHC
Lift for Rating Events: ?? Choices are .050 in., .040 in., or Seat Timing
Total Cam Advance: ??
Lifter Profile Type: ?? (hydrolic roller, hydrolic flat, solid roller, solid flat, etc.)
Intake centerline degree ATDC:???
Intake Duration at .050: ???
Open at .050, BTDC: ??
Close at .050, ABDC: ??
Max Lobe lift in inches: ??
Lash at valve in inches: ??
Rocker Arm Ratio: 1.8
Exhaust Centerline BTDC: ???
Exhaust Duration @ .050: ??
Open at .050, BBDC: ??
Close at .050, ATDC: ??
Max Lobe lift in inches: ??
Lash at valve in inches: ??
Rocker Arm Ratio: 1.8
Lobe Separation: ???
Intake Gross Valve Lift: ??
Exhaust Gross Valve Lift: ??
Supercharger: Street Roots w/ Tight Seals
Volume / Revolution in Cu. In.: ???
S/C Pulley Dia: ???
Crank Pulley Dia: ???
Ok...any help on this would be appreciated if anyone knows any of these items. It would be really cool to get this all entered in. It would be of great help in analyzing the areas where we could most improve the engine. Its not information that's readily available from Ford, but maybe some of you have run across it before. Like I said earlier, at least the cam specs would be a tremendous help. The rest of the info I have estimated pretty well, but I just didn't have much of a clue with the cam. I used a stock HO smallblock cam and the power and torque peaks are way high.
Thanks guys!
Check my current answers for accuracy and fill in any blanks you can:
Bore: 3.55 in.
Stroke: 3.54 in.
Number of Cylinders: 8
Rod Length: 5.9331
Chamber type: ??? Choices are typical wedge, compact wedge, hemi, flathead (sidevalve), pent roof. Which do you guys think is most accurate?
Chamber CC's in head: ??
Piston dome CC's: ??
Gasket Thickness: ??
Gasket Bore Dia. : 3.55 in.
Deck Height Clearance: ??
Intake Valve layout: 2 valves & 2 separate ports
Intake Valve Dia: 1.457 in.
Average Port Dia in Inches: ??
Port Volume in CC's: ??
Port Length in Inches: ??
Flow Efficiency %: ??
Exhaust Valve Layout: 2 valves & 2 separate ports
Exhaust Valve Dia: 1.181 in.
Flow Efficiency %: ??
Intake Manifold type: Single Plenum EFI or Split Plenum EFI???
Intake Runner Dia: ??
Intake Runner Length: ??
Intake Flow Efficency %: ??
Throttlebody: Twin 58mm TB (936 cfm)
Exhaust Manifolds: Production Log-type Exhaust Manifolds
Exhaust System: Typical Production High Output V8 Dual Exhaust (450 cfm)
Cam Type: Typical Stock HO OHC
Lift for Rating Events: ?? Choices are .050 in., .040 in., or Seat Timing
Total Cam Advance: ??
Lifter Profile Type: ?? (hydrolic roller, hydrolic flat, solid roller, solid flat, etc.)
Intake centerline degree ATDC:???
Intake Duration at .050: ???
Open at .050, BTDC: ??
Close at .050, ABDC: ??
Max Lobe lift in inches: ??
Lash at valve in inches: ??
Rocker Arm Ratio: 1.8
Exhaust Centerline BTDC: ???
Exhaust Duration @ .050: ??
Open at .050, BBDC: ??
Close at .050, ATDC: ??
Max Lobe lift in inches: ??
Lash at valve in inches: ??
Rocker Arm Ratio: 1.8
Lobe Separation: ???
Intake Gross Valve Lift: ??
Exhaust Gross Valve Lift: ??
Supercharger: Street Roots w/ Tight Seals
Volume / Revolution in Cu. In.: ???
S/C Pulley Dia: ???
Crank Pulley Dia: ???
Ok...any help on this would be appreciated if anyone knows any of these items. It would be really cool to get this all entered in. It would be of great help in analyzing the areas where we could most improve the engine. Its not information that's readily available from Ford, but maybe some of you have run across it before. Like I said earlier, at least the cam specs would be a tremendous help. The rest of the info I have estimated pretty well, but I just didn't have much of a clue with the cam. I used a stock HO smallblock cam and the power and torque peaks are way high.
Thanks guys!
