1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

84-85 13B Rx7 Rear Housing to Throttle Body Hose (N304-13-208A) - NLA

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Old 05-12-17, 11:01 AM
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84-85 13B Rx7 Rear Housing to Throttle Body Hose (N304-13-208A) - NLA

what are you using to replace this hose since it is no longer available?

84-85 GSL SE 13B Rx7 Rear Housing to Throttle Body Hose (N304-13-208A) - NLA

Old 05-12-17, 12:15 PM
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https://www.rx7club.com/1st-generati...-hoses-528543/

looks like most stop the water from going to the tb, or replace with a longer regular hose.
Old 05-13-17, 08:25 PM
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i think you could probably get an S4 or S5 NA one, and cut it to make it fit.

i'm not sure its the same diameter, but the Miata 1.6 has a hose a lot like that
Old 05-15-17, 12:48 PM
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Any chunk of 5/16" coolant hose should work...

Maybe 3/8".
Old 08-15-17, 07:21 PM
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Just to close out this thread with my solution . I used Gates #18030 and trimmed to fit.

just don't trim it too short on either leg because it needs to bend around the upper intake manifold runner
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