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How much air?

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Old Dec 6, 2009 | 11:27 PM
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Default How much air?

How much air is required for a c5 with h/c lt headers? I read all the posts about CAIs, larger TBs and manifolds. Then I read the dyno results from TPIS and I ask, "what do you get for the money spent and do I really need all that exspensive stuff?" I read that a stock airfilter with a Z06 cover flows 383 CFM and a stock TB can flow 582 CFM. What can a stock ls6 manifold flow? How much does my engine need? How much can it handle? Is there a "bottle neck" in the system? Anybody out there got numbers?
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Old Dec 7, 2009 | 08:35 AM
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Originally Posted by mtwardz
I read that a stock airfilter with a Z06 cover flows 383 CFM and a stock TB can flow 582 CFM. Anybody out there got numbers?
Those numbers just seem kind of low to me, especially for a Z06.

Back in the old days, a Holley R-3310 carburetor was rated at 780 CFM.
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Old Dec 7, 2009 | 10:44 AM
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Originally Posted by Quicksilver Vert 01
Those numbers just seem kind of low to me, especially for a Z06.

Back in the old days, a Holley R-3310 carburetor was rated at 780 CFM.
"Back in the old days", we got (maybe) 180hp at a sbc crank with a ROCHESTER 4GC and ten miles to the gallon...with drum brakes, 6.70x15 tires, no a/c, power steering, power brakes, seats, doors or windows...and only an AM radio!

Last edited by hotwheels57; Dec 7, 2009 at 11:00 AM.
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Old Dec 7, 2009 | 11:36 AM
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Originally Posted by hotwheels57
"Back in the old days", we got (maybe) 180hp at a sbc crank with a ROCHESTER 4GC and ten miles to the gallon...with drum brakes, 6.70x15 tires, no a/c, power steering, power brakes, seats, doors or windows...and only an AM radio!
...and thought we were "bitch'in"
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Old Dec 7, 2009 | 11:54 AM
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Originally Posted by hotwheels57
"Back in the old days", we got (maybe) 180hp at a sbc crank with a ROCHESTER 4GC
185 hp, to be exact, with the 8.5:1 compression single four-barrel 283 cu.in. engine in 1957. But it sure felt like a whole lot more!
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