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Intake runner volume 282cc Combustion chamber volume 54cc Intake valve angle 11 deg. x 4 deg. Intake Valve 2.150 dia. x 5.640 length Serdi # 2616-B1 Exhaust valve angle 8 deg. Exhaust Valve 1.625 dia. x 5.550 length Serdi # 2632-A1 Intake port opening at gasket 2.03H x 1.52W Distance from floor to deck at gasket 2.11 Intake min. cross sectional dim. 2.79 sq. in.
Airflow improvements, by the customer, will result in increased performance and acceleration as long as the key port shapes are not changed. This result can be obtained with valve seat work, which is matched to the specific application (i.e. restricted or qualifying engines). Given the numerous engine/manifold combinations being run today, a generic camshaft lobe may not deliver the power this design can obtain. This port generally requires a smaller rocker ratio when used with cams demanding high ratios. The chamber is of conventional design with improvements to increase
fuel efficiency. It incorporates an enhanced radial quench area
supplemented with improvements to minimize fuel loss through the
exhaust. |
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