Whats the difference between the b18c head and the b16 head??????????
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Re: Whats the difference between the b18c head and the b16 head?????????? (finest_GSR)
B16A head is the PR3. It has a single runner intake manifold.
B18C head is the P72. It has a unique dual runner intake manifold with butterfly valves that open and close for low end power.
The P72 head has a slightly smaller combustion chamber, so it makes for slightly higher compression than the PR3 head. When you change the intake manifold on th P72 head to a single runner (Skunk2, BLOX) intake manifold, the flow characteristics between the two heads are near equal.
B18C head is the P72. It has a unique dual runner intake manifold with butterfly valves that open and close for low end power.
The P72 head has a slightly smaller combustion chamber, so it makes for slightly higher compression than the PR3 head. When you change the intake manifold on th P72 head to a single runner (Skunk2, BLOX) intake manifold, the flow characteristics between the two heads are near equal.
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Re: Whats the difference between the b18c head and the b16 head?????????? (finest_GSR)
The Type R head is best.
The Type R head (PR3-X) starts life as a B16 casting. It will flow a bit better than the GSR (P72) head. The P72 has a smaller combustion chamber than the PR3 head, which means that the P72 will have a higher compression ration with an identical bottom end.
The Type R head (PR3-X) starts life as a B16 casting. It will flow a bit better than the GSR (P72) head. The P72 has a smaller combustion chamber than the PR3 head, which means that the P72 will have a higher compression ration with an identical bottom end.
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