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wow! 919hp @ 10lbs of boost!

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Old 12-18-2012, 09:15 PM
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what a rush!
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Default wow! 919hp @ 10lbs of boost!

fron magnuson's facebook:

Magnuson had an exciting time at Kenny Duttweiler's today Making 919.4 peak Horsepower with an average of 10.1 Psi on a 390 Cubic Inch LSX with All Pro Heads. This power was made using our Heartbeat Corvette under hood system. There is more testing to come. But we are very happy with these results on only 10 Psi.

discuss

Old 12-18-2012, 09:16 PM
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I seen that, for those who did not this is a engine dyno. I want to know at what rpm that HP was? It sounded like they spun it pretty high, also would like to see TQ #'s. non the less pretty impressive.
Old 12-18-2012, 09:19 PM
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So, about 780-800 to the wheels? Still a nice number on 10psi. What are the specs on the motor?
Old 12-18-2012, 09:24 PM
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Very impressive!

Although you have to keep in mind boost is just a measurement of restriction. 10psi with that top end/engine combo could be 1000cfm where as 10psi on say a 6.0 with 317 heads is only 700cfm..... Cfm = power, not boost. Boost just achieves the cfm number

It would be interesting to see the pulley combination they were running and what boost/power that same combo would net on a more run of the mill setup
Old 12-18-2012, 09:54 PM
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I wouldn't be surprised if those heads flowed over 400.
Old 12-18-2012, 10:05 PM
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Equivalent to a 690 hp 4.8
Old 12-18-2012, 10:17 PM
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Still pretty nice number he states all pro heads and corvette so they could have been 823 heads milled or what do you think
Old 12-18-2012, 10:52 PM
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Sounds bad ***! Any more info? Maybe i need some all pro heads
Old 12-18-2012, 11:22 PM
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Originally Posted by turbo-ls7
Still pretty nice number he states all pro heads and corvette so they could have been 823 heads milled or what do you think
No they are All Pro Heads. Not a factory casting. It is a very high end aftermarket casting that is making crazy power.
Old 12-18-2012, 11:34 PM
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Originally Posted by sprayedenali
Very impressive!

Although you have to keep in mind boost is just a measurement of restriction. 10psi with that top end/engine combo could be 1000cfm where as 10psi on say a 6.0 with 317 heads is only 700cfm..... Cfm = power, not boost. Boost just achieves the cfm number

It would be interesting to see the pulley combination they were running and what boost/power that same combo would net on a more run of the mill setup
Originally Posted by Gadgetized
I wouldn't be surprised if those heads flowed over 400.
Exactly, especially with a roots blower. That blower is going to move X amount of air based on its RPM. Less boost = less drag and therefor more power. Those big monster heads is where the real power is made.

Take Mark Carlyle's car for instance (the IPS corvette). 440LSX with All pro heads and twin 88 turbos...25psi he is making 2000+hp


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