GETTING IT STRAIGHT - Velocity Map of Intake Port
06-02-2009, 11:18 AM
#51
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Re: GETTING IT STRAIGHT - Velocity Map of Intake Port
Looks like an illustration from a Jim McFarland article. Just something worth noting, 99 times out of 100, the theories ol' Jim is talking about are based on engines with carburetor's.
06-04-2009, 05:40 AM
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Re: GETTING IT STRAIGHT - Velocity Map of Intake Port
Is the fuel actually shot at the back of the valve? I know that is the intended direction, but being a 2 valve intake it would have to fire directly at the port divider and be split in 2 for this to occur. I understand this is the intent, but how does it take place in the real world. I would assume a better atomized fuel mixture carried by the intake charge would be ideal??
06-04-2009, 06:26 AM
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Re: GETTING IT STRAIGHT - Velocity Map of Intake Port
If a "D" shaped port isn't used to improve flow quality around bends by helping to keep the fuel vapour suspended in the intake air what are they for?
06-04-2009, 09:08 AM
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06-09-2009, 07:58 AM
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Re: GETTING IT STRAIGHT - Velocity Map of Intake Port
This is a good diagram for discussion of velocities in an intake port such as the BVTEC intake.
Red is higher velocity, blue is slower.
Very instructive to help understand where to concentrate efforts when endeavoring in porting/polishing.
Discuss, listen, think,...LURN.
FO-SHIZZAY!!!
Red is higher velocity, blue is slower.
Very instructive to help understand where to concentrate efforts when endeavoring in porting/polishing.
Discuss, listen, think,...LURN.
FO-SHIZZAY!!!
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