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Help! Identifying 13B 4 or 6 port

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Old 03-02-13, 11:03 AM
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Help! Identifying 13B 4 or 6 port
Is there a way to identify if a 13B is a 6 or 4 port without taking the manifold out. It's
in the RX2 I just purchased.Name: ojrLQJG.jpg Views: 110 Size: 147.0 KBName: 95NlvbD.jpg Views: 100 Size: 141.3 KB
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Old 03-02-13, 12:39 PM
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Looks like it had FI so I would say its a 6 port unless its been re stacked... you need a picture from the side from the top of the header up...
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Old 03-02-13, 12:45 PM
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Never mind. Judging from the RB manifold, it's a 6 port.
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Old 03-04-13, 07:14 AM
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two bolts are in the housing closing the injection nozzles - at least 84 and up 13b and the middle plate has the injector holes plugged up- at least 84 and up.
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Old 03-04-13, 09:11 AM
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Seems to me like s4 rear iron,s5 center iron,s4 rotor housings and can't really tell what series front iron.
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Old 03-04-13, 09:46 AM
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Cool! Thanx!
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Old 03-04-13, 12:07 PM
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Originally Posted by turbo_dave
Seems to me like s4 rear iron,s5 center iron,s4 rotor housings and can't really tell what series front iron.
yeah its not an S4 NA center, no EGR.

rotor housings are S4, no knock sensor holes.
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Old 03-04-13, 12:29 PM
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'86-91 mix-match 6 port.
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