FE Power Forums
FE Power Forums => FE Technical Forum => FE Engine Dyno Results => Topic started by: jayb on May 05, 2015, 02:46:31 PM
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Performance Summary:
Cubic Inches: 492 Dyno brand: SuperFlow 901
Power Adder: No Where dynoed: FE Power LLC
Peak Horsepower: 662.0
Peak Torque: 623.7
Horsepower and Torque Curves:
(http://fepower.net/Dyno Results/492PSE.jpg)
Engine Specifications:
Block brand, material, finished bore size, other notes:
Ford 427 sideoiler block, 1968, cast iron, 4.293 (0.060" over), cracks welded up on deck and in main cap bolt holes, thin cylinders
Crankshaft brand, cast or forged, stroke, journal size:
Scat 4.25" cast iron stroker crank, BBC rod journals
Connecting Rods brand, material, center to center distance, end sizes, bolts:
Scat 6.700" center to center H-Beam BBC connecting rods, .990" BBC pins, 2.200" rod journal size 2.200", Scat rod bolts
Piston brand, material (caster, hypereutectic or forged), dish/dome volume, static CR:
Custom forged Diamond pistons and pins, 16cc dish, static compression ratio 11.3:1
Main Bearings, Rod Bearings, Cam Bearings brand and size:
Federal Mogul 125M main bearings, Federal Mogul Z87200CH rod bearings
Piston rings brand, size, other notes:
Total Seal 1/16 - 1/16 - 3/16 p/n CR7190-65 plasma moly
Oil Pump, pickup, and drive:
Precision Oil Pumps blueprinted high volume, 5/16" drive
Oil pan, windage tray, oil filter adapter:
Milodon 7 quart p/n 31130 pan, Moroso p/n 22940 windage tray, Ford stock late model, high flow filter adapter
Camshaft brand, type (hyd/solid, flat tappet or roller), lift and duration (adv and @.050")
Comp Cams custom roller, intake lobe 4878, exhaust lobe 4879
- Lift .700 intake / .711 exhaust
- Advertised duration 304 intake / 310 exhaust
- Duration at .050" lobe lift 266 intake / 272 exhaust
- Lobe separation angle 110
- Installed 4 degrees advanced, ICL=106 ATDC
Lifters brand, type:
Crower solid roller with HIPPO pin oiling feature, p/n 62216H-16
Timing chain and timing cover:
Rollmaster Indexable Tru-Roller timing set, Shelby timing cover
Cylinder heads brand, material, port and chamber information:
Edelbrock Aluminum 60059 bare castings
- Guides installed for 11/32" stem valves
- Max effort porting job
- 72cc combustion chambers
- .070" restrictors in head oiling passage
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 .800
Flow bench used, location:
Superflow SF-600, R&R Performance
Intake valve brand, head size, stem size:
Manley stainless steel 2.250" head, 11/32" stem
Exhaust valve brand, head size, stem size:
Manley stainless steel 1.750" head, 11/32" stem
Valve springs brand, part number, specs:
Comp Cams p/n 943, 240# on seat, 650# full open
Retainers and locks brand, part number, specs:
Comp Cams titanium retainers, 10 degree, p/n 731-16, Comp Cams machined steel locks, p/n 611-16
Rocker arm brand, type (adjustable or non-adj), material, ratio
Erson rocker assembly, adjustable, aluminum with roller bearings, 1.76:1
Rocker shafts and stands, brand, material:
Erson rocker assembly
Pushrods brand, type, length:
Smith Brothers ball and cup, .375" diameter, 9.200" overall length
Valve covers, brand, type:
Cobra Lemans aluminum valve covers from Summit Racing
Distributor brand, advance curve information:
MSD electronic distributor, p/n 8594
- Recurved for 20 degrees total centrifugal advance
- All advance in by 3000 RPM
Harmonic balancer brand:
ATI steel p/n 918310, SFI approved
Water pump brand, type (mechanical or electric):
Edelbrock aluminum p/n 8805, mechanical
Intake manifold brand, material, porting information:
PSE intake adapter, port matched to the heads, with Weiand tunnel Ram
Carburetor(s) brand, type
2 Holley 660 Center Squirter carbs
Exhaust manifolds or headers brand, type:
Hooker adjustable race headers, 2 1/8" primaries, p/n 6375HKR
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nice numbers on that engine, compression is high, what octane???
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I run all the dyno tests on a locally available 110 octane race gas, although this engine really doesn't need it. In fact, I think it would probably run about the same on pump premium gas, although on the dyno I don't think I'd want to chance it. DCR on the engine is about 8.4:1 if I recall correctly, which is certainly within pump gas range.
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Nice results! Jay, can you post a pic of the engine with your results? I'm sure I'm not the only one who would like to see it.
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I think pictures should be mandatory. Heck, some of you guys could be making this stuff up ;D
No block filler was used? Pretty gutsy to be running a welded up, thin walled, 4.25 stroked 427 block to 7000rpm. Pretty impressive numbers. What is the engine destined for? Street? Strip?
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That engine was built in 2006, and is one of the dyno mules featured in my book. Its currently sitting on an engine stand in my shop, waiting for the next series of dyno tests, or the next vehicle that needs it, whatever. No block filler in that engine, and in fact the sonic map of the cylinders is published in my book also. That engine is one reason why I'm not too afraid of a thin wall 427 block.
Unfortunately I don't have a picture of the engine with the tunnel ram on it. I do have one black and white photo shown in the book where the engine has the Blue Thunder 2X4, but the size is too big to post here without blowing the page way up.
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Bummer, I was curious what it looked like with the adapter and tunnel ram on it.
The clover leaf cylinders really do help. Probably wouldn't be such a great idea with an older LR 427 block.
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It would look like this:
(http://fepower.net/Photos/Posts/weiand_3.jpg)
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that is a nice setup jay. i cant wait to start playing with that intake i bought from you. also, not to get off the subject but how have the clear style valve covers been working out so far.
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It would look like this:
LMAO! Well, I asked for it ;D
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One primary reason why I'm converting my 68 Mustang to FE power (see the Member Projects section) is that so I can run those valve covers on the street, in the summer heat, for a few months, and make sure they hold up. If they do, I hope to make them available by the end of the year.
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if i remember right pse used to make those im probably wrong however and i read a year or so ago on a post that you made these. its just a weight thing to save some lbs. hell i dont want to lose weight myself when i can just buy the lighter parts lol
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PSE did used to make the clear valve covers. Just call me Pro-Stock Paul ::)
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Hey, hey...I called you Pro Stock Paul first if you remember! LOL!
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Yes, Bob, you're the winner ;)
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Ha. Ha. Hah! ;)