Previous Thread
Next Thread
Print Thread
430 inch SBC on the dyno #3079418
09/21/22 08:11 PM
09/21/22 08:11 PM
Joined: Jan 2003
Posts: 30,989
Oregon
A
AndyF Offline OP
I Win
AndyF  Offline OP
I Win
A

Joined: Jan 2003
Posts: 30,989
Oregon
Circle track engine, not a drag racer so cam is smaller than what a drag car would use. Still pretty impressive power for SBC. Best pull was a little over 700 hp. Torque peak and power peak are fairly low which is what you want for a this type of racing. Would make more power with a bigger cam and a higher power band.
https://youtu.be/jrIXvjfiG64

IMG_1002 (Large).JPGIMG_1003 (Large).JPG
Re: 430 inch SBC on the dyno [Re: AndyF] #3079601
09/22/22 11:43 AM
09/22/22 11:43 AM
Joined: Jan 2003
Posts: 19,355
Las Vegas
Al_Alguire Offline
I Live Here
Al_Alguire  Offline
I Live Here

Joined: Jan 2003
Posts: 19,355
Las Vegas
One of these days I need to post a video of the motor in the Vette....The 10500rpm should pucker some butts smile


"I am not ashamed to confess I am ignorant of what I do not know."

"It's never wrong to do the right thing"
Re: 430 inch SBC on the dyno [Re: Al_Alguire] #3079608
09/22/22 12:16 PM
09/22/22 12:16 PM
Joined: Jul 2004
Posts: 3,802
Arlington, Texas
B
bobby66 Offline
master
bobby66  Offline
master
B

Joined: Jul 2004
Posts: 3,802
Arlington, Texas


up

Re: 430 inch SBC on the dyno [Re: Al_Alguire] #3079620
09/22/22 12:58 PM
09/22/22 12:58 PM
Joined: Dec 2021
Posts: 1,115
Loudoun County, VA
Brad_Haak Offline
super stock
Brad_Haak  Offline
super stock

Joined: Dec 2021
Posts: 1,115
Loudoun County, VA
Originally Posted by Al_Alguire
One of these days I need to post a video of the motor in the Vette....The 10500rpm should pucker some butts smile

I'm in! popcorn


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)
Re: 430 inch SBC on the dyno [Re: AndyF] #3079621
09/22/22 12:59 PM
09/22/22 12:59 PM
Joined: Dec 2021
Posts: 1,115
Loudoun County, VA
Brad_Haak Offline
super stock
Brad_Haak  Offline
super stock

Joined: Dec 2021
Posts: 1,115
Loudoun County, VA
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)
Re: 430 inch SBC on the dyno [Re: AndyF] #3079658
09/22/22 02:43 PM
09/22/22 02:43 PM
Joined: Nov 2009
Posts: 186
WI
mopar873 Offline
member
mopar873  Offline
member

Joined: Nov 2009
Posts: 186
WI
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.
Re: 430 inch SBC on the dyno [Re: Brad_Haak] #3079706
09/22/22 06:02 PM
09/22/22 06:02 PM
Joined: Jan 2003
Posts: 30,989
Oregon
A
AndyF Offline OP
I Win
AndyF  Offline OP
I Win
A

Joined: Jan 2003
Posts: 30,989
Oregon
Originally Posted by Brad_Haak
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.

Re: 430 inch SBC on the dyno [Re: AndyF] #3079847
09/23/22 08:16 AM
09/23/22 08:16 AM
Joined: Dec 2021
Posts: 1,115
Loudoun County, VA
Brad_Haak Offline
super stock
Brad_Haak  Offline
super stock

Joined: Dec 2021
Posts: 1,115
Loudoun County, VA
Nice!


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)






Powered by UBB.threads™ PHP Forum Software 7.7.1