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Desktop Dyno Help. Please!
393w Stroker bored .030" over
Scat Crankshaft 3.850 stroke Scat H-Beam Rods 6.200 length Hydraulic Roller Camshaft (duration @ .050" = 224/232 ; valve lift w/ 1.6 = 555/565 (MAY CHANGE, COMP CAMS RECOMMENDED) AFR 185 Cylinder Heads w/ upgraded springs Weiand Stealth Intake Manifold Street Demon 750 CFM Carburetor w/ mechanical secondaries Comp Cams 1.6 ratio Pro Magnum Roller Rocker Arms 10.0:1 Compression Ratio w/ Forged Probe Pistons 1 3/4" Headers Edelbrock Water Pump T-5 G-Force Tranny 9" Rearend w/ 3.89 gears and locker |
I'm showing 431hp @ 5500 and 500 lb-ft @ 3500 with the setup above.....447hp with a single plane intake.
Desktop dyno is pretty accurate in most cases. When I tried my engine, it was off about 2 hp from the actual dyno run. Torque values are usually off for some reason though. |
What would get this engine a bit closer to 480 - 500 HP? I would like to keep all parts for the street. Could the cam be bigger? If so, what would you recommend? Thanks for the help.
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I'd say my estimate was a little on the low side. To be honest, that engine should make a little more than that. FRP's 392ci crate engine makes 430hp with their stock heads.....the AFR's should really bring it to life....I think I read an article in Muscle Mustangs & Fast Fords where they tested the crate engine and then bolted on a set of AFR's....pretty sure it came close to 500hp. But they may have been using AFR 205's....I can't remember for sure. The only thing that would keep you from getting there would be the cam, and the fact that you're using a dual plane intake. I think that combo is a little tame for this engine.
I changed the cam to a Crane cam that I had ordered a couple years ago....I think it was a 230 I, 232 E, .563" I and .595" E with a 110 lobe separation.....with this cam and a single plane intake, the hp went up to 470hp at 6000 rpms, and 458 lb-ft at 4500. |
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