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CC Advertisers
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 12Likes
03-26-2013, 05:41 PM
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CC Member
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Join Date: Apr 2008
Location: Melbourne,
Vic
Cobra Make, Engine: Some polish thing... With some old engine
Posts: 2,286
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Not Ranked
Lippy - Word of Warning:
DO NOT tell your wife or girlfriend that you're getting DIAMONDS for this little engine of yours. 
She'll forever hold it against you, the price Brent quoted for your build wont be but a drop in the ocean trying to appease her there after.  |
03-26-2013, 05:46 PM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,025
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Not Ranked
Quote:
Originally Posted by Dimis
Lippy - Word of Warning:
DO NOT tell your wife or girlfriend that you're getting DIAMONDS for this little engine of yours.
She'll forever hold it against you, the price Brent quoted for your build wont be but a drop in the ocean trying to appease her there after. |
Hmmm, did you know that occasionally Victorian toshers would find diamonds? For some reason this thread made me think of that little fact....  |
03-26-2013, 05:49 PM
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CC Member
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Join Date: Apr 2012
Location: Bay Area (Peninsula),
CA
Cobra Make, Engine: ERA 427, 427/487 side-oiler
Posts: 1,248
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Not Ranked
Quote:
Originally Posted by Dimis
Lippy - Word of Warning:
DO NOT tell your wife or girlfriend that you're getting DIAMONDS for this little engine of yours.
She'll forever hold it against you, the price Brent quoted for your build wont be but a drop in the ocean trying to appease her there after. |
If I have to get my wife some jewelry every time I get a car, I'm glad to make that trade. At least I know up front what I'm getting into. |
04-11-2013, 12:47 PM
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CC Member
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Join Date: Dec 2001
Location: Louisville,
KY
Cobra Make, Engine: I'm Cobra-less!
Posts: 9,417
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Not Ranked
Your heads and Anthony's heads came in yesterday from Pond. Unfinished seats. As soon as the valve job is done and they're milled, I'll post pics and flow numbers.
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04-11-2013, 09:51 PM
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CC Member
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Join Date: Apr 2012
Location: Bay Area (Peninsula),
CA
Cobra Make, Engine: ERA 427, 427/487 side-oiler
Posts: 1,248
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Not Ranked
Quote:
Originally Posted by blykins
Your heads and Anthony's heads came in yesterday from Pond. Unfinished seats. As soon as the valve job is done and they're milled, I'll post pics and flow numbers.
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Sweet. How does the porting look? I hope to see some big flow numbers. |
04-12-2013, 04:58 AM
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CC Member
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Join Date: Dec 2001
Location: Louisville,
KY
Cobra Make, Engine: I'm Cobra-less!
Posts: 9,417
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Not Ranked
They are CNC ported and they look great. The exhaust ports have a different design than the edelbrocks, but they supposedly perform better too.
Flow numbers are a big part of it, but they don't tell about velocity, which is extremely important too. These will do just fine though.
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04-12-2013, 10:05 AM
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CC Member
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Join Date: Apr 2012
Location: Bay Area (Peninsula),
CA
Cobra Make, Engine: ERA 427, 427/487 side-oiler
Posts: 1,248
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Not Ranked
Quote:
Originally Posted by blykins
Flow numbers are a big part of it, but they don't tell about velocity, which is extremely important too. These will do just fine though.
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If flow is volume per unit of time, and velocity is distance per unit of time, then velocity is flow divided by area. Since the area of a port is constant, I would think flow and velocity should be proportional, aside from variation of flow across the area. Is this incorrect? |
04-12-2013, 10:20 AM
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CC Member
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Join Date: Dec 2001
Location: Louisville,
KY
Cobra Make, Engine: I'm Cobra-less!
Posts: 9,417
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Not Ranked
Port area isnt constant....
But think of it this way: air and fuel has momentum. It takes time to get it moving. Guys that port their stuff at home have a tendency to hog the ports out as big as they can, thinking a big port makes more power. In reality, a smaller port that flows the same as a big port will most likely perform better because the velocity of the charge will be higher and you can shove more in with respect to time.
Perfect scenario is a port that flows a lot, but is efficient enough to have high velocity as well.
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