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Old 06-16-21, 07:59 PM
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Header ID
Anybody recognize what brand of header this is? Came with some other SA parts. Thanks in advance.








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Old 06-16-21, 11:39 PM
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looks like a RB 12a header made to work on a 13b.
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Old 06-17-21, 05:47 AM
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It was used on an early car for sure. Note the two round carbon spots on the flange. So we know it likely fits an early 12A. As far as a brand, I'm not sure. Rotary Engineering made some early stuff but I'm not certain this is their work.
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Old 06-17-21, 08:19 AM
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Originally Posted by mazdaverx713b
It was used on an early car for sure. Note the two round carbon spots on the flange. So we know it likely fits an early 12A. As far as a brand, I'm not sure. Rotary Engineering made some early stuff but I'm not certain this is their work.
i would have said Rotary Engineering too, they used that goofy 6 bolt flange too.
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Old 06-17-21, 09:59 AM
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As far as I know, Racing Beat has always cut their initials into the mounting flange. Was hoping that someone might have the same piece who can verify the manufacturer. Could be a R/E part, I'll try doing a little digging in that direction to see what I can find. Thanks.
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Old 06-17-21, 10:18 AM
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considering selling it?
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Old 06-17-21, 12:41 PM
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There is a RE 12a header on epay right now. It has very similar flanges as yours (both ends) but not the 2-into-1 collector piece.




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Old 06-17-21, 01:00 PM
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I third the Rotary Engineering- looks identical to mine. The heavy-wall steel should clean up nicely.

https://www.rx7club.com/1st-generati...stion-1091214/
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Old 06-17-21, 01:14 PM
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I used to have a RE header, looked a like this on. The 2 to one after the 6 bolt dual flange is fabricated by someone else.
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Old 06-18-21, 05:49 AM
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Its definitely old and appears to be well made. I agree that the collector is home made.
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Old 07-10-21, 05:34 PM
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A side note, a Rotary Engineering header will NOT bolt up to a Racing Beat long primary midpipe without a lot of work.
Thickwall tube is very hard to bend!
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Old 07-11-21, 10:54 AM
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I think that is an old RB Road Race header...
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Old 07-12-21, 12:25 AM
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IIRC, the 2 middle bolt holes on the outlet flange are offset opposite on RB vs RE, another reason it won't bolt to a RB mid section.
The RE tubes don't turn as sharply as the RB at the inlet.
Here's an NOS RE I sold years ago.



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Old 07-12-21, 11:45 AM
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Originally Posted by Stevan
IIRC, the 2 middle bolt holes on the outlet flange are offset opposite on RB vs RE, another reason it won't bolt to a RB mid section.
The RE tubes don't turn as sharply as the RB at the inlet.
Here's the thread where I made it fit.

https://www.rx7club.com/build-thread...system-990786/

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