Current NHRA Pro-Stock Cyl. heads
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Current NHRA Pro-Stock Cyl. heads
Does anybody know pretty close as to what the flow numbers are on the current Pro-Stock heads ? Mark H.
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Re: Current NHRA Pro-Stock Cyl. heads
Your talking 500 cfm on the Intake and 330 out the Exh @ .900" lift pretty much.
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Re: Current NHRA Pro-Stock Cyl. heads
It was that little 25 years ago lol
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Re: Current NHRA Pro-Stock Cyl. heads
from PipeMax v4.50 :swampbuggy wrote: ↑Tue Feb 11, 2020 6:51 am Does anybody know pretty close as to what the flow numbers are on the current Pro-Stock heads ? Mark H.
Code: Select all
Bore=4.75000 Stroke=3.52000 499.01057710 Cubic Inches @ 10000 RPM Intake System= 124.66269 VE%
Complete Intake System Flow @28in.= 600.0000 -to- 642.5146 CFM @ 1.200000 Lift (0.00000 VE% Loss)
Cylinder Head Intake Port Flow @28in.= 600.0000 -to- 642.5146 CFM @ 1.200000 Lift (124.66269 VE%)
Cylinder Head Exhaust Port Flow @28in.= 380.0000 -to- 406.9259 CFM @ 1.100000 Lift (no Flow Pipe)
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Re: Current NHRA Pro-Stock Cyl. heads
I have no idea what todayes heads flow. These are from some time ago. They were not just ported by Darin but are the heads he designed for Ford.
Ford Pro Stock RCV (Canted Valve) Ported Darin Morgan SF600 Alum
Exhaust = No Pipe
2.575
0.20000 - 175
0.30000 - 273
0.40000 - 369
0.50000 - 457
0.60000 - 530
0.70000 - 583
0.80000 - 614
0.90000 - 637
1.00000 - 644
1.865
0.20000 - 103
0.30000 - 154
0.40000 - 200
0.50000 - 243
0.60000 - 286
0.70000 - 327
0.80000 - 344
0.90000 - 351
1.00000 - 360
Stan
Ford Pro Stock RCV (Canted Valve) Ported Darin Morgan SF600 Alum
Exhaust = No Pipe
2.575
0.20000 - 175
0.30000 - 273
0.40000 - 369
0.50000 - 457
0.60000 - 530
0.70000 - 583
0.80000 - 614
0.90000 - 637
1.00000 - 644
1.865
0.20000 - 103
0.30000 - 154
0.40000 - 200
0.50000 - 243
0.60000 - 286
0.70000 - 327
0.80000 - 344
0.90000 - 351
1.00000 - 360
Stan
Stan Weiss/World Wide Enterprises
Offering Performance Software Since 1987
http://www.magneticlynx.com/carfor/carfor.htm
David Vizard & Stan Weiss' IOP / Flow / Induction Optimization Software
http://www.magneticlynx.com/DV
Offering Performance Software Since 1987
http://www.magneticlynx.com/carfor/carfor.htm
David Vizard & Stan Weiss' IOP / Flow / Induction Optimization Software
http://www.magneticlynx.com/DV
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Re: Current NHRA Pro-Stock Cyl. heads
Thanks to Larry and Stan for your input. I listened to an audio interview somebody did with Mr. Godbold at Comp. Cams which prompted me to run some math calculations. One was....appx. 1500 H.P. divided by 644 C.F.M. = 2.33 H.P. per CFM . He also mentioned a percentage of the diameter of your intake valve would equate to the needed valve lift. Examples used were appx. 40 percent for NASCAR....appx. a 2.230" x .40 = .892" lift. Pro-Stock close to 50 percent. 2.57" x .50 = 1.285" lift ?????? Mark H. BTW the NASCAR I.V. size was a guess, the 40 percent was Billy's words.
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Re: Current NHRA Pro-Stock Cyl. heads
Stan Weiss wrote: ↑Tue Feb 11, 2020 2:21 pm I have no idea what todayes heads flow. These are from some time ago. They were not just ported by Darin but are the heads he designed for Ford.
Ford Pro Stock RCV (Canted Valve) Ported Darin Morgan SF600 Alum
Exhaust = No Pipe
2.575
0.20000 - 175
0.30000 - 273
0.40000 - 369
0.50000 - 457
0.60000 - 530
0.70000 - 583
0.80000 - 614
0.90000 - 637
1.00000 - 644
1.865
0.20000 - 103
0.30000 - 154
0.40000 - 200
0.50000 - 243
0.60000 - 286
0.70000 - 327
0.80000 - 344
0.90000 - 351
1.00000 - 360
Stan
were those the heads Larry Morgan ran before he gave up on Ford....also the same style CW runs?
Darin designed 2 styles ??
Stephen Johnson #2162
Horace Johnson #2167
SS/D 427 Ford Fairlane NHRA-IHRA
Ex-Jim Van Cleve
1985 Mustang GT N/A 331
Horace Johnson #2167
SS/D 427 Ford Fairlane NHRA-IHRA
Ex-Jim Van Cleve
1985 Mustang GT N/A 331
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Re: Current NHRA Pro-Stock Cyl. heads
From what I can remember there were 2 heads designed. Darin designed 1 of them and for some reason the other head was the one used.JohnsnsFord2@aol.com wrote: ↑Wed Feb 12, 2020 1:20 amStan Weiss wrote: ↑Tue Feb 11, 2020 2:21 pm I have no idea what todayes heads flow. These are from some time ago. They were not just ported by Darin but are the heads he designed for Ford.
Ford Pro Stock RCV (Canted Valve) Ported Darin Morgan SF600 Alum
Exhaust = No Pipe
2.575
0.20000 - 175
0.30000 - 273
0.40000 - 369
0.50000 - 457
0.60000 - 530
0.70000 - 583
0.80000 - 614
0.90000 - 637
1.00000 - 644
1.865
0.20000 - 103
0.30000 - 154
0.40000 - 200
0.50000 - 243
0.60000 - 286
0.70000 - 327
0.80000 - 344
0.90000 - 351
1.00000 - 360
Stan
were those the heads Larry Morgan ran before he gave up on Ford....also the same style CW runs?
Darin designed 2 styles ??
Stan
Stan Weiss/World Wide Enterprises
Offering Performance Software Since 1987
http://www.magneticlynx.com/carfor/carfor.htm
David Vizard & Stan Weiss' IOP / Flow / Induction Optimization Software
http://www.magneticlynx.com/DV
Offering Performance Software Since 1987
http://www.magneticlynx.com/carfor/carfor.htm
David Vizard & Stan Weiss' IOP / Flow / Induction Optimization Software
http://www.magneticlynx.com/DV
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Re: Current NHRA Pro-Stock Cyl. heads
The head didn't determine the flow, there was enough stock to cut about any shape you wanted into it.Stan Weiss wrote: ↑Thu Feb 13, 2020 11:12 amFrom what I can remember there were 2 heads designed. Darin designed 1 of them and for some reason the other head was the one used.JohnsnsFord2@aol.com wrote: ↑Wed Feb 12, 2020 1:20 amStan Weiss wrote: ↑Tue Feb 11, 2020 2:21 pm I have no idea what todayes heads flow. These are from some time ago. They were not just ported by Darin but are the heads he designed for Ford.
Ford Pro Stock RCV (Canted Valve) Ported Darin Morgan SF600 Alum
Exhaust = No Pipe
2.575
0.20000 - 175
0.30000 - 273
0.40000 - 369
0.50000 - 457
0.60000 - 530
0.70000 - 583
0.80000 - 614
0.90000 - 637
1.00000 - 644
1.865
0.20000 - 103
0.30000 - 154
0.40000 - 200
0.50000 - 243
0.60000 - 286
0.70000 - 327
0.80000 - 344
0.90000 - 351
1.00000 - 360
Stan
were those the heads Larry Morgan ran before he gave up on Ford....also the same style CW runs?
Darin designed 2 styles ??
Stan
It was basically a blank canvas as most heads of that class are.
The one dimension that had a little gravity is the intake valve axis to cylinder bore axis was about 9 degrees as designed.
Could have been made a couple degrees up or down from there.
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Re: Current NHRA Pro-Stock Cyl. heads
Stan Weiss wrote: ↑Thu Feb 13, 2020 11:12 amFrom what I can remember there were 2 heads designed. Darin designed 1 of them and for some reason the other head was the one used.JohnsnsFord2@aol.com wrote: ↑Wed Feb 12, 2020 1:20 amStan Weiss wrote: ↑Tue Feb 11, 2020 2:21 pm I have no idea what todayes heads flow. These are from some time ago. They were not just ported by Darin but are the heads he designed for Ford.
Ford Pro Stock RCV (Canted Valve) Ported Darin Morgan SF600 Alum
Exhaust = No Pipe
2.575
0.20000 - 175
0.30000 - 273
0.40000 - 369
0.50000 - 457
0.60000 - 530
0.70000 - 583
0.80000 - 614
0.90000 - 637
1.00000 - 644
1.865
0.20000 - 103
0.30000 - 154
0.40000 - 200
0.50000 - 243
0.60000 - 286
0.70000 - 327
0.80000 - 344
0.90000 - 351
1.00000 - 360
Stan
were those the heads Larry Morgan ran before he gave up on Ford....also the same style CW runs?
Darin designed 2 styles ??
Stan
the other head wasn't approved by nhra!?? I thought I heard that...
Stephen Johnson #2162
Horace Johnson #2167
SS/D 427 Ford Fairlane NHRA-IHRA
Ex-Jim Van Cleve
1985 Mustang GT N/A 331
Horace Johnson #2167
SS/D 427 Ford Fairlane NHRA-IHRA
Ex-Jim Van Cleve
1985 Mustang GT N/A 331