511" FE used in Drag Week 2005

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Performance Summary:
      Cubic Inches:    511                  Dyno brand:  SuperFlow 901
      Power Adder:    None           Where dynoed:  R&R Performance
      Peak Horsepower:  706
      Peak Torque:   636

Horsepower and Torque Curves:

Note on the graph below:  This shows the dyno results before and after a spring change, from Comp 919 springs to Comp 943 springs.  The 919 springs were the ones recommended by Comp.  Moral of the story - the recommended valve springs from the manufacturer may not work, if you are not running a small block Chevrolet 




Engine Specifications:
  Block brand, material, finished bore size, other notes:
Shelby aluminum block, 4.375" bore     

  Crankshaft brand, cast or forged, stroke, journal size:
Scat billet 4.25" stroke crank, 2.200" rod journals (BBC size)
     
   Connecting Rods brand, material, center to center distance, end sizes, bolts:
Crower billet 6.800" center to center BBC Rods, .990 pin

   Piston brand, material (caster, hypereutectic or forged), dish/dome volume, static CR:
Diamond custom forged 11.75:1 pistons with tool steel pins and double spiro-locks

  Main Bearings, Rod Bearings, Cam Bearings brand and size:
Federal Mogul main bearings, standard, Clevite 77 rod bearings, standard

   Piston rings brand, size, other notes:
Total Seal conventional, file fit rings (not gapless), plasma moly top ring, 1/16 - 1/16 - 3/16

   Oil Pump, pickup, and drive:
Precision Oil Pumps high volume oil pump with the spacer added to the relief valve spring (70-80 psi hot oil pressure), and the 5/16" hex shaft drive

   Oil pan, windage tray, oil filter adapter:
Cobra aluminum oil pan, Canton pickup, Ford windage tray, Ford large passage oil filter adapter

   Camshaft brand, type (hyd/solid, flat tappet or roller), lift and duration (adv and @.050")
Comp Cams custom solid roller cam, Xtreme Energy street roller series, Lobe # 4878 on the intake, # 4879 on the exhaust; adv duration 304/310, duration @ .050" is 266/272, lift is .700"/.710", lobe separation angle is 110 degrees

   Lifters brand, type:
Comp Cams mechanical roller lifters with oiling to the needle bearings

  Timing chain and timing cover:
Rollmaster timing chain set (from Precision Oil Pumps), roller thrust bearing, Shelby timing cover

  Cylinder heads brand, material, port and chamber information:
Edelbrock heads, 2.25"/1.75" SS valves, 11/32" stems, heads ported and milled to 68cc chambers, rocker stud helicoils replaced with EZ Locks for strength, oil return holes chamfered and drilled out, the head bolt hole where the oil flows to the head also drilled out for clearance between the stud and the hole to allow the oil to flow, oil to rockers restricted with .070" orifice

   Cylinder head flow in cfm at inches of lift (28" H2O pressure drop):
      Intake               Exhaust
      .100      80           .100     62
      .200     169          .200    118
      .300     233          .300    166
      .400     280          .400    203
      .500     308          .500    236
      .600     329          .600    252
      .700     343          .700    261
      .800     351          .800    267

  Flow bench used, location:
SuperFlow SF600 bench, R&R Performance

   Intake valve brand, head size, stem size:
Manley 2.25", 11/32 stem

   Exhaust valve brand, head size, stem size:
Manley 1.75", 11/32 stem
   
   Valve springs brand, part number, specs:
Comp 943, 240# on the seat, 600# open

   Retainers and locks brand, part number, specs:
Comp Cams titanium retainers, spring seats, and 10 degree locks

   Rocker arm brand, type (adjustable or non-adj), material, ratio
Erson roller rocker assembly

   Rocker shafts and stands, brand, material:
Erson roller rocker assembly

   Pushrods brand, type, length:
Smith Brothers 3/8" pushrods, 9.200" OAL

  Valve covers, brand, type:
Factory Ford CJ valve covers, polished

   Distributor brand, advance curve information:
MSD billet aluminum FE distributor, 18 degrees advance in the distributor, in by 3400 RPM

   Harmonic balancer brand:
ATI 7 pound SFI certified harmonic balancer

   Water pump brand, type (mechanical or electric):
Edelbrock aluminum water pump, mechanical

   Intake manifold brand, material, porting information:
Edelbrock Victor intake, heavily ported with re-sleeved pushrod holes, top milled at an angle so that the carb is at the same angle as the stock intake (for use with the shaker), front breather hole bored, extra milling and slotting on the intake port face done for better oil drainback

   Carburetor(s) brand, type
Holley 1150 cfm Dominator carb, stock jets

  Exhaust manifolds or headers brand, type:
Hooker 2 1/8" primary adjustable race headers, modified for ground clearance in car (no longer equal length primaries)