[EDrgr]

When will we see this? At 400 ci, that's 3.25 HP per cubic inch. MBE just released a new billet SB head for that'll pull @ 1200 HP. We know the AUS Pro Stock guys have been around 1200+ for some time now with more conventional architecture.

What's holding them back at this point?

 

[wes427]

I got one I hope makes that much.

 

[DarkMatter]

430+ Cube Mopar. Size matters & the Mopar makes the power just add tq = stroke with a little less rpm. A Bigger than 400 ci sized Mopar should be enough.

 

[thatbikeguy]

Money. If there was some kinda prize for 1300 hp NA it would happen overnight.

No one seems to want to put up the ~$100k to see what's possible.

 

[BBF612]

Just need rpm and air flow.

 

[DarkMatter]

Just need rpm and air flow.

A Bigger cylinder trap with a bigger sb Ford?
Would 40 to 50 more Cubic inches added to something like this be enough?

Blankenship/EFI U SB Ford 1,203+ HP, 3 hp/ci, (2x4 EFI, D3 heads by Slawko)

 

[EDrgr]

I got one I hope makes that much.

Can we get some details or is it super secret?

 

[69 Judge]

Just need rpm and air flow.

 

[BBF612]

400.809 Cubic Inches @ 12000 RPM with xxx.00 % Volumetric Efficiency PerCent

Required Intake Flow between 496.9 CFM and 528.8 CFM at 28 Inches
Required Exhaust Flow between 305.1 CFM and 355.7 CFM at 28 Inches

600 RPM/Sec Dyno Test Lowest Low Average Best
Peak HorsePower 1198.3 1247.6 1272.3 1296.9
Peak Torque Lbs-Ft 573.5 597.0 608.8 620.6

HorsePower per CID 2.990 3.113 3.174 3.236
Torque per Cubic Inch 1.431 1.490 1.519 1.548

BMEP in psi 215.8 224.6 229.1 233.5
Carb CFM at 1.5 in Hg. 1531 1703 1789 1876

Target EGT= 1116 degrees F at end of 4 second 600 RPM/Sec Dyno accel. test
Octane (R+M)/2 Method = 115.0 to 117.0 Octane required range
Air Standard Efficiency = 67.55653 % for 16.000:1 Compression Ratio

Peak HorsePower calculated from Cylinder Head Flow CFM only
600 RPM/Sec Dyno Test Lowest Average Best Potential
Head Flow Peak HP = 1053.9 1163.1 1272.2

 

[BBF612]

400.809 Cubic Inches @ 13000 RPM with xxx.00 % Volumetric Efficiency PerCent

Required Intake Flow between 506.7 CFM and 539.2 CFM at 28 Inches
Required Exhaust Flow between 311.1 CFM and 362.6 CFM at 28 Inches

600 RPM/Sec Dyno Test Lowest Low Average Best
Peak HorsePower 1197.6 1246.9 1271.5 1296.1
Peak Torque Lbs-Ft 529.0 550.8 561.7 572.5

HorsePower per CID 2.988 3.111 3.172 3.234
Torque per Cubic Inch 1.320 1.374 1.401 1.428

BMEP in psi 199.0 207.2 211.3 215.4
Carb CFM at 1.5 in Hg. 1583 1761 1850 1939

Target EGT= 1139 degrees F at end of 4 second 600 RPM/Sec Dyno accel. test
Octane (R+M)/2 Method = 113.7 to 117.0 Octane required range
Air Standard Efficiency = 67.55653 % for 16.000:1 Compression Ratio

Peak HorsePower calculated from Cylinder Head Flow CFM only
600 RPM/Sec Dyno Test Lowest Average Best Potential
Head Flow Peak HP = 1024.5 1160.8 1297.1

 

[Erik-427]

When will we see this? At 400 ci, that's 3.25 HP per cubic inch. MBE just released a new billet SB head for that'll pull @ 1200 HP. We know the AUS Pro Stock guys have been around 1200+ for some time now with more conventional architecture.

What's holding them back at this point?

I'm betting this makes a bunch more.

 

[DarkMatter]

400.809 Cubic Inches @ 12000 RPM with xxx.00 % Volumetric Efficiency PerCent

Required Intake Flow between 496.9 CFM and 528.8 CFM at 28 Inches
Required Exhaust Flow between 305.1 CFM and 355.7 CFM at 28 Inches

600 RPM/Sec Dyno Test Lowest Low Average Best
Peak HorsePower 1198.3 1247.6 1272.3 1296.9
Peak Torque Lbs-Ft 573.5 597.0 608.8 620.6

HorsePower per CID 2.990 3.113 3.174 3.236
Torque per Cubic Inch 1.431 1.490 1.519 1.548

BMEP in psi 215.8 224.6 229.1 233.5
Carb CFM at 1.5 in Hg. 1531 1703 1789 1876

Target EGT= 1116 degrees F at end of 4 second 600 RPM/Sec Dyno accel. test
Octane (R+M)/2 Method = 115.0 to 117.0 Octane required range
Air Standard Efficiency = 67.55653 % for 16.000:1 Compression Ratio

Peak HorsePower calculated from Cylinder Head Flow CFM only
600 RPM/Sec Dyno Test Lowest Average Best Potential
Head Flow Peak HP = 1053.9 1163.1 1272.2

Can you test this same theory using a more common style Blankenship combination with a 4 inch to 4.100 stroke at a good avg rpm for the given topic.

 

[Bigtime]

I'll wait, this is bad ass and running:

408” BRE/BH SB Mopar 1,253 HP, 3.07 hp/ci (Hemi)

 

[BBF612]

Can you test this same theory using a more common style Blankenship combination with a 4 inch to 4.100 stroke at a good avg rpm for the given topic.

This is 4 x 4, and I adjusted the VE were it makes around 1300hp just to show that it takes about the same cfm to make the hp.

402.125 Cubic Inches @ 11000 RPM with xxx.00 % Volumetric Efficiency PerCent

Required Intake Flow between 499.8 CFM and 531.9 CFM at 28 Inches
Required Exhaust Flow between 306.9 CFM and 357.7 CFM at 28 Inches

600 RPM/Sec Dyno Test Lowest Low Average Best
Peak HorsePower 1204.6 1254.2 1279.0 1303.7
Peak Torque Lbs-Ft 628.9 654.7 667.7 680.6

HorsePower per CID 2.996 3.119 3.180 3.242
Torque per Cubic Inch 1.564 1.628 1.660 1.693

BMEP in psi 235.8 245.5 250.4 255.2
Carb CFM at 1.5 in Hg. 1497 1666 1750 1835

Target EGT= 1086 degrees F at end of 4 second 600 RPM/Sec Dyno accel. test
Octane (R+M)/2 Method = 116.0 to 117.0 Octane required range
Air Standard Efficiency = 67.55653 % for 16.000:1 Compression Ratio

Peak HorsePower calculated from Cylinder Head Flow CFM only
600 RPM/Sec Dyno Test Lowest Average Best Potential
Head Flow Peak HP = 1113.4 1196.5 1279.6

 

[DarkMatter]

This is 4 x 4, and I adjusted the VE were it makes around 1300hp just to show that it takes about the same cfm to make the hp.

402.125 Cubic Inches @ 11000 RPM with xxx.00 % Volumetric Efficiency PerCent

Required Intake Flow between 499.8 CFM and 531.9 CFM at 28 Inches
Required Exhaust Flow between 306.9 CFM and 357.7 CFM at 28 Inches

600 RPM/Sec Dyno Test Lowest Low Average Best
Peak HorsePower 1204.6 1254.2 1279.0 1303.7
Peak Torque Lbs-Ft 628.9 654.7 667.7 680.6

HorsePower per CID 2.996 3.119 3.180 3.242
Torque per Cubic Inch 1.564 1.628 1.660 1.693

BMEP in psi 235.8 245.5 250.4 255.2
Carb CFM at 1.5 in Hg. 1497 1666 1750 1835

Target EGT= 1086 degrees F at end of 4 second 600 RPM/Sec Dyno accel. test
Octane (R+M)/2 Method = 116.0 to 117.0 Octane required range
Air Standard Efficiency = 67.55653 % for 16.000:1 Compression Ratio

Peak HorsePower calculated from Cylinder Head Flow CFM only
600 RPM/Sec Dyno Test Lowest Average Best Potential
Head Flow Peak HP = 1113.4 1196.5 1279.6

So that's a yes with a 440 - 450 cube sbf with a "SC2/Slawko" style heads around 10,000 rpm.

If yes? No rules give me the size and less rpm more tq equation.

 

[DarkMatter]

BBF612 sad part is Godzilla has a better stance with a 4.220 bore + cheap block compared 2. Fucken No induction = 😫😖😣😤😢

Someone needs to do a "SC"style Cleveland Head for Zillla? Not bullet and reasonably priced for everyone...


🤔 similar to the LS?

CID or someone needs 2 pick up the ball!

Pinky and da Brain thoughts...

Godzilla can't just be Godzilla with FI. Corner and cover the Ls market without a Competive cylinder head 😖

 

[DarkMatter]

I'll wait, this is bad ass and running:

408” BRE/BH SB Mopar 1,253 HP, 3.07 hp/ci (Hemi)

More size is needed with stroke no need 2 reinvent the wheel (i'm on the same page). Believe someone started off with the same Mopar thoughts. More than enough of the Top 6 are Mopars. Basic math of

Horsepower = Torque x RPM / 5,252

Same engine with more stroke should net 1300 at a given Rpm that's less than the 408 used by BRE .

Same as the Ford......

But there's a brick wall somewhere that's being hit. The horse powers there with Either combination on theory and the formula.

4 inch crank @ 10k+ rpm is now a Google search.
It Might even be the Wall spoken on...idk

 

[LarryO]

Architecture of that head looks similar to this head which has been available for some time now.

 

[BBF612]

Is this what you want DM?

443.343 Cubic Inches @ 9450 RPM with xxx.00 % Volumetric Efficiency PerCent

Required Intake Flow between 499.2 CFM and 531.1 CFM at 28 Inches
Required Exhaust Flow between 306.5 CFM and 357.2 CFM at 28 Inches

600 RPM/Sec Dyno Test Lowest Low Average Best
Peak HorsePower 1207.5 1257.2 1282.0 1306.8
Peak Torque Lbs-Ft 733.8 764.0 779.0 794.1

HorsePower per CID 2.724 2.836 2.892 2.948
Torque per Cubic Inch 1.655 1.723 1.757 1.791

BMEP in psi 249.6 259.9 265.0 270.1
Carb CFM at 1.5 in Hg. 1479 1645 1729 1812

Target EGT= 1104 degrees F at end of 4 second 600 RPM/Sec Dyno accel. test
Octane (R+M)/2 Method = 115.2 to 114.6 Octane required range
Air Standard Efficiency = 66.51319 % for 14.800:1 Compression Ratio

Peak HorsePower calculated from Cylinder Head Flow CFM only
600 RPM/Sec Dyno Test Lowest Average Best Potential
Head Flow Peak HP = 1138.6 1208.2 1277.8

----- Engine Design Specifications -----

 

[Rcparker2]

The magic is bore spacing. That's part of the Mopar advantage.