360 - Help Converting euro header for USA car | FerrariChat

360 Help Converting euro header for USA car

Discussion in '360/430' started by 360+Volt=Prius, Jun 12, 2023.

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  1. 360+Volt=Prius

    360+Volt=Prius Formula 3
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    Sep 1, 2013
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    Raimondo
    So my manifolds had loose precats. I decided to go with euro manifolds as they maintain the stock look, and don’t have precats and were cheaper than new aftermarket.

    I knew full well I would need to modify the air rails to have the connection between exhaust ports 2&3, and 6&7.

    What I am asking is does anyone know where to source the USA male compression fitting same that is on the USA manifolds, to connect to my existing braided SS secondary air system. Or even what size it is.

    I can, but would rather not butcher my original manifolds for a donar part.

    The euro manifold is standard 1/2” pipe thread, does the euro car have a compression fitting that attaches a similar male compression fitting to this pipe thread? How does the euro car connect to the air pump line? Perhaps I can source this converter fitting if it exists and modify it for my rail.

    I can’t find any euro parts diagrams.

    Any help would be appreciated.

    Thanks,
    -ray

    USA
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  2. collegeboy

    collegeboy Formula 3

    Aug 25, 2007
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    Weird, I thought Euro 360s didn’t have air rails. Shows what I know.
     
  3. 360+Volt=Prius

    360+Volt=Prius Formula 3
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    I believe some years do.
     
  4. 360+Volt=Prius

    360+Volt=Prius Formula 3
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    Found a few on eBay. Some sort of valve on the end maybe a back flow preventer. Not the same connection as USA looks like a hose slips over the end.

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  5. collegeboy

    collegeboy Formula 3

    Aug 25, 2007
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    Ate those Scuderia headers?
     
  6. 360trev

    360trev F1 Rookie
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    No EU 360 ever had any air injection - period. Only USA cars.



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  7. collegeboy

    collegeboy Formula 3

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    Ok. That’s what I thought.
     
  8. 360+Volt=Prius

    360+Volt=Prius Formula 3
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    Thanks trev,. And college boy you were correct from the outset! So much for reading threads here.

    Fascinating, so these with no pre cats and SS secondary air rails must be modified from an imported EU car to meet USA emissions?

    And same for the other EU headers on eBay that have rails.

    Correct?
     
  9. Some Guy in the sky

    Some Guy in the sky Formula Junior

    Sep 19, 2018
    361
    That is a strange one. The only usa cars that did not have precats were 99s. What makes that strange is that 99 usa cars did not have air injection.
     
  10. 360+Volt=Prius

    360+Volt=Prius Formula 3
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    So the question now is does anyone know the type of compression fitting that connects to USA secondary air pump braided SS hose.
     
  11. 360+Volt=Prius

    360+Volt=Prius Formula 3
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    That’s weird I thought all USA Cars has air pumps for years. Does the 99 inject air somewhere else in the header, or just not have a secondary air pump.
     
  12. Some Guy in the sky

    Some Guy in the sky Formula Junior

    Sep 19, 2018
    361
    The usa 99 does not inject air into the exhaust system at all and does not have a secondary air pump.
     
  13. clean512

    clean512 Formula 3

    Feb 4, 2010
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    Does not have on 99 cars. Taking my 99 header out
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  14. 360+Volt=Prius

    360+Volt=Prius Formula 3
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    Thanks for all the replies on this esoteric problem.

    Good example of “unknown unknowns” and “known unknowns”

    My known unknown I thought I was just going to convert a euro header air rail to USA style.

    Unknown unknown - the rails are not original, and much more of a headache than I could have expected to connect to a USA car.
     

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