RX-8 Discussion Discussion on Mazda's newest rotary powered vehicle.

4-port And 6-port Look The Same?

Old Aug 12, 2005 | 10:45 AM
  #11  
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[quote name='neit_jnf' date='Aug 11 2005, 10:17 PM']just look at the lower intake manifold, the four port has 4 runners and 4 injectors, the 6-port has six runners and six injectors

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Old Aug 19, 2005 | 02:57 PM
  #12  
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[quote name='inanimate_object' date='Aug 9 2005, 02:58 PM']Interesting, so what other differences are there between the engines?



Mark

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main differences between the engines are the number of ports and injectors (4 vs 6), the port opening and closing timings for both intake and exhaust, the variable lenght intake manifolds are tuned for different rpms, the redlines are different and the power and torque outputs. Could be more, I dunno
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