Engine basics > Four strokes only

Tight bend 90 deg exhaust header for Saito 56

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Dan McEntee:

--- Quote from: Dave Hull on November 08, 2022, 07:27:39 PM ---Any idea if the hard 90 header backpressure affects the engine run?

Dave

--- End quote ---

  Yes, that would be my concern. It's pretty short also, and you do want a little clearance from the fuselage side. I have never seen any other kind of performance engine exhaust have such a tight turn. I would think it would increase back pressure a bit.

    Type at you later,
   Dan McEntee

Dennis Toth:
Is there a reason these headers are steel rather than aluminum? I know they don't want similar metals to prevent galling but since the head is aluminum why not an aluminum header pipe with a flared end and steel nut?

Best,    DennisT

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