Re: 430 inch SBC on the dyno
[Re: Al_Alguire]
#3079620
09/22/22 12:58 PM
09/22/22 12:58 PM
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Joined: Dec 2021
Posts: 1,145 Loudoun County, VA
Brad_Haak
super stock
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super stock
Joined: Dec 2021
Posts: 1,145
Loudoun County, VA
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One of these days I need to post a video of the motor in the Vette....The 10500rpm should pucker some butts I'm in!
2021 Challenger 6.4L Scat Pack 1320 100% stock: 1.680, 11.894 at 113.75 (DA 175 ft) weight reduction, wheels, tires, Hellcat air box: 1.661, 11.686 at 115.97 (DA 710 ft)
1973 Challenger 452 ci street/strip [2008] pump gas, DOT radials: 1.454, 10.523 at 126.44 (DA 514 ft)
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Re: 430 inch SBC on the dyno
[Re: AndyF]
#3079621
09/22/22 12:59 PM
09/22/22 12:59 PM
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Joined: Dec 2021
Posts: 1,145 Loudoun County, VA
Brad_Haak
super stock
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super stock
Joined: Dec 2021
Posts: 1,145
Loudoun County, VA
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Andy - What sort of CR & fuel used? I saw cam duration noted on vid description, but was wondering what other details you know. Sounds healthy...
2021 Challenger 6.4L Scat Pack 1320 100% stock: 1.680, 11.894 at 113.75 (DA 175 ft) weight reduction, wheels, tires, Hellcat air box: 1.661, 11.686 at 115.97 (DA 710 ft)
1973 Challenger 452 ci street/strip [2008] pump gas, DOT radials: 1.454, 10.523 at 126.44 (DA 514 ft)
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Re: 430 inch SBC on the dyno
[Re: AndyF]
#3079658
09/22/22 02:43 PM
09/22/22 02:43 PM
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Joined: Nov 2009
Posts: 191 WI
mopar873
member
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member
Joined: Nov 2009
Posts: 191
WI
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Yes, with those heads on that many cubes, there is still a huge amount of untapped power with cam/compression/intake changes. That particular combination is probably super reliable and low maintenance. It's amazing the cylinder head development still taking place for the SBC. It goes in every direction too. There is stuff like these 15 degree heads and other 9 and 18 degree development, and at the same time there are guys like Chad Speier who have expanded the lungs of 23 degree stuff like crazy.
Last edited by mopar873; 09/22/22 02:44 PM.
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Re: 430 inch SBC on the dyno
[Re: Brad_Haak]
#3079706
09/22/22 06:02 PM
09/22/22 06:02 PM
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Joined: Jan 2003
Posts: 31,050 Oregon
AndyF
OP
I Win
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OP
I Win
Joined: Jan 2003
Posts: 31,050
Oregon
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Andy - What sort of CR & fuel used? I saw cam duration noted on vid description, but was wondering what other details you know. Sounds healthy... 13.8 compression ratio and I think we were using C12. The guy who owns this engine has another engine that is very similar. The other engine has titanium rods and a two piece intake manifold. It is the "lightweight" engine and it makes roughly 30 hp more at peak than the "heavy" engine. We have a 428 inch SBC with Chapman 15 degree heads to run but the last engine is a drag race setup out of a Vega. That engine has a big drag race cam in it and it has a Dominator carb rather than a 4150. So I'm expecting 750 hp from the drag race 428.
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Re: 430 inch SBC on the dyno
[Re: AndyF]
#3079847
09/23/22 08:16 AM
09/23/22 08:16 AM
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Joined: Dec 2021
Posts: 1,145 Loudoun County, VA
Brad_Haak
super stock
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super stock
Joined: Dec 2021
Posts: 1,145
Loudoun County, VA
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2021 Challenger 6.4L Scat Pack 1320 100% stock: 1.680, 11.894 at 113.75 (DA 175 ft) weight reduction, wheels, tires, Hellcat air box: 1.661, 11.686 at 115.97 (DA 710 ft)
1973 Challenger 452 ci street/strip [2008] pump gas, DOT radials: 1.454, 10.523 at 126.44 (DA 514 ft)
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