Hey Guys.. What you think about this exhaust port design?

General engine tech -- Drag Racing to Circle Track

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user-9274568

Hey Guys.. What you think about this exhaust port design?

Post by user-9274568 »

I found this while surfing. What's your honest opinion? It's a SB2.2

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cboggs
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Post by cboggs »

as a general statement, ..

I'm not in favor of any port design that moves the throat / short turn / port
too far off axis to the valve / bowl centerline.

it works sometimes in longer ports, .. but I'd have to velocity map
the SB2.2 port, .. short turn & seat / throat area before I'd consider it.

Is this your head?, .. have you flowed it with a pipe?

Curtis
Race Flow Development
Simultaneous 5-axis CNC Porting
http://www.raceflowdevelopment.com
Joe Mendelis

Post by Joe Mendelis »

The best Cup SB2 heads are parallel floor and roof. I don't know if it's the best design, but it flows over 300 from a 1.600 with no pipe, and makes a lot of power.
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