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Exhaust question

Discussion in 'Engine Building' started by greygoose, May 23, 2006.

  1. greygoose

    greygoose Junior Member

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    I wanted to know is it better to have a mandrel bent 2 1/4 exhaust or a crush bent 2 1/5 exhaust when you have a 1.8 going for 200whp?
     
  2. phyregod

    phyregod !!YTINASNI

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    I'm sure you meant crush bent 2.5 or 2 1/2..

    Anyway, Mandrel FTW. Keep that exhaust flowing quickly. bigger with crush bends will make it flow slower and have added backpressure/crappier flow from all the turbulence and bottle necking caused by the crush bends.
     
  3. greygoose

    greygoose Junior Member

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    thank you and yes I meant 2 1/2 sorry about the type o
     
  4. cycloneb18c3

    cycloneb18c3 Senior Member

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    why not 2.5 mandrel bent?
     
  5. MikeBergy

    MikeBergy Blah blah blah....

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    I'd do 2.5 personally.
     
  6. get_nick

    get_nick These snozzberries taste like snozzberries... VIP

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    2 1/4 would be good for a 1.8l motor. if you were going turbo i would suggest 2 1/2. it's up to you though.
     
  7. GSRCIVICTN

    GSRCIVICTN Lost in a sea of rednecks

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    2.5 is a good size for a b-series, NA.
     
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