Will these injectors be enough?
#11
Here's some info on the heads that I copied and pasted from WCCH's website...
WCCH Stage 2 CNC Ported 6.01 #317
Flow Data @ 28" Water:
Valve Lift Intake Lift Exhaust Lift
.100" 70.1 59.1
.200" 145.4 119.1
.300" 210.0 174.2
.400" 250.0 213.3
.500" 288.1 228.5
.550" 303.0 230.7
.575" 305.8 230.9
.600" 294.3 231.9
Intake runner volume = 232.4cc
Exhaust runner volume = 86.3cc
Combustion chamber volume = 73.5cc(w/min. mill)
Test bore = 4.030"
Intake port tested with radius flow plate
Exhaust tested with stub pipe
WCCH Stage 2 CNC Ported 6.01 #317
Flow Data @ 28" Water:
Valve Lift Intake Lift Exhaust Lift
.100" 70.1 59.1
.200" 145.4 119.1
.300" 210.0 174.2
.400" 250.0 213.3
.500" 288.1 228.5
.550" 303.0 230.7
.575" 305.8 230.9
.600" 294.3 231.9
Intake runner volume = 232.4cc
Exhaust runner volume = 86.3cc
Combustion chamber volume = 73.5cc(w/min. mill)
Test bore = 4.030"
Intake port tested with radius flow plate
Exhaust tested with stub pipe
#14
TECH Senior Member
iTrader: (27)
what size valves do those heads have bud?
That's weird how the flow drops off at .600" but those flow very nicely at 550.
That intake runner size is a tad too hogged out for my liking. I think the heads I got are 225cc. I'd love to have the 205cc AFR'd though for the increased air velocity
Here's the flow on the ones I bought:
Valve Lift
Intake
.100" 72
.200" 142
.300" 205
.400" 255
.500" 286
.600" 305
.650" 310
That's weird how the flow drops off at .600" but those flow very nicely at 550.
That intake runner size is a tad too hogged out for my liking. I think the heads I got are 225cc. I'd love to have the 205cc AFR'd though for the increased air velocity
Here's the flow on the ones I bought:
Valve Lift
Intake
.100" 72
.200" 142
.300" 205
.400" 255
.500" 286
.600" 305
.650" 310
#15
RC Engineering has an online calculator for injector sizing. It tends to be conservative - probably good when ordering, not so good if you are seeing how far you can push your existing equipment.
http://www.rceng.com/
Under Tech Notes/Sizing
http://www.rceng.com/
Under Tech Notes/Sizing
#16
Launching!
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Join Date: Feb 2008
Location: LA AND LAS VEGAS
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Here's some info on the heads that I copied and pasted from WCCH's website...
WCCH Stage 2 CNC Ported 6.01 #317
Flow Data @ 28" Water:
Valve Lift Intake Lift Exhaust Lift
.100" 70.1 59.1
.200" 145.4 119.1
.300" 210.0 174.2
.400" 250.0 213.3
.500" 288.1 228.5
.550" 303.0 230.7
.575" 305.8 230.9
.600" 294.3 231.9
Intake runner volume = 232.4cc
Exhaust runner volume = 86.3cc
Combustion chamber volume = 73.5cc(w/min. mill)
Test bore = 4.030"
Intake port tested with radius flow plate
Exhaust tested with stub pipe
WCCH Stage 2 CNC Ported 6.01 #317
Flow Data @ 28" Water:
Valve Lift Intake Lift Exhaust Lift
.100" 70.1 59.1
.200" 145.4 119.1
.300" 210.0 174.2
.400" 250.0 213.3
.500" 288.1 228.5
.550" 303.0 230.7
.575" 305.8 230.9
.600" 294.3 231.9
Intake runner volume = 232.4cc
Exhaust runner volume = 86.3cc
Combustion chamber volume = 73.5cc(w/min. mill)
Test bore = 4.030"
Intake port tested with radius flow plate
Exhaust tested with stub pipe
#18
what size valves do those heads have bud?
That's weird how the flow drops off at .600" but those flow very nicely at 550.
That intake runner size is a tad too hogged out for my liking. I think the heads I got are 225cc. I'd love to have the 205cc AFR'd though for the increased air velocity
Here's the flow on the ones I bought:
Valve Lift
Intake
.100" 72
.200" 142
.300" 205
.400" 255
.500" 286
.600" 305
.650" 310
That's weird how the flow drops off at .600" but those flow very nicely at 550.
That intake runner size is a tad too hogged out for my liking. I think the heads I got are 225cc. I'd love to have the 205cc AFR'd though for the increased air velocity
Here's the flow on the ones I bought:
Valve Lift
Intake
.100" 72
.200" 142
.300" 205
.400" 255
.500" 286
.600" 305
.650" 310
Originally Posted by blackbeast ss
not knockn on your heads but. . . the CFM vs port volume isnt all that great. . they have 232 CC intake runners, there are heads flowing more cfm and better ex relation with 205 and 215 cc heads. . .just my .02
#19
RC Engineering has an online calculator for injector sizing. It tends to be conservative - probably good when ordering, not so good if you are seeing how far you can push your existing equipment.
http://www.rceng.com/
Under Tech Notes/Sizing
http://www.rceng.com/
Under Tech Notes/Sizing
#20
Thanks for the link...I plugged in some numbers...450hp (which should be more than I'm pushing I'd believe...someone feel free to correct me if I'm wrong), 56 psi of fuel pressure at the rail (that's about right isn't it?), and the other info (8 injectors, .50 BSFC, 80% desired IDC), and it came up with 30.99lb injectors as being needed...if this info is correct I'll "squeak by" like Jeff Spicoli...
With that being the case, the injectors would be marginal at best. While they say not to exceed 80%, that is a good design practice, and depending on the injectors and ECU, you may be able to exceed that by a good margin. Also depends on how rich you want to run it.