Who's got a desk top dyno?
02-06-2017, 08:18 PM
#12
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Now that I have all the major pieces bought, can you plug it in and see what it says,, or anybody have any good guestimates?
454 8.5 compression, 731 cam, promaxx 320's, ( Intake .200 = 155cfm, .300 = 228, .400 = 289, .500 = 336, .600 = 368, .700 = 388 .800 = 392 exh .200 = 117, .300 = 158, .400 = 205, .500 = 228, .600 = 258 (w pipe 277) .700 = 260, (280) .800 = 261 (283)... 1050 dom on a 177 blower, 5psi.
454 8.5 compression, 731 cam, promaxx 320's, ( Intake .200 = 155cfm, .300 = 228, .400 = 289, .500 = 336, .600 = 368, .700 = 388 .800 = 392 exh .200 = 117, .300 = 158, .400 = 205, .500 = 228, .600 = 258 (w pipe 277) .700 = 260, (280) .800 = 261 (283)... 1050 dom on a 177 blower, 5psi.
Seriously though. Those heads are flowing as good if not better than a set of afr 305's. Those are real flow numbers, not "advertised". I gotta do some stuff around the house right now, but I'll try and run it in my program for you as well.
The 731 cam is gonna be a bit on the small side to get in the upper 5000's for peak power. I'd probably would have gone with the 525EFI or 741 cam. I could compare the two , and see how they stack up power wise.
Shooting from the hip, I think you'll easily get over 600 without a problem. Wayne272 build a set of those engines, but had a 236/245 114 crane Flat tappet, 177 blower, dominator, stock Merc heads, and made 575ish around 5500, with around 4.5lbs of boost. Torque was 600ish ft lbs.
02-06-2017, 09:01 PM
#13
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iTrader: (3)
You should have said "AFR" heads. The HP guesses would have been 650+. lol
Seriously though. Those heads are flowing as good if not better than a set of afr 305's. Those are real flow numbers, not "advertised". I gotta do some stuff around the house right now, but I'll try and run it in my program for you as well.
The 731 cam is gonna be a bit on the small side to get in the upper 5000's for peak power. I'd probably would have gone with the 525EFI or 741 cam. I could compare the two , and see how they stack up power wise.
Shooting from the hip, I think you'll easily get over 600 without a problem. Wayne272 build a set of those engines, but had a 236/245 114 crane Flat tappet, 177 blower, dominator, stock Merc heads, and made 575ish around 5500, with around 4.5lbs of boost. Torque was 600ish ft lbs.
Seriously though. Those heads are flowing as good if not better than a set of afr 305's. Those are real flow numbers, not "advertised". I gotta do some stuff around the house right now, but I'll try and run it in my program for you as well.
The 731 cam is gonna be a bit on the small side to get in the upper 5000's for peak power. I'd probably would have gone with the 525EFI or 741 cam. I could compare the two , and see how they stack up power wise.
Shooting from the hip, I think you'll easily get over 600 without a problem. Wayne272 build a set of those engines, but had a 236/245 114 crane Flat tappet, 177 blower, dominator, stock Merc heads, and made 575ish around 5500, with around 4.5lbs of boost. Torque was 600ish ft lbs.
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