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1.8ltr turbo and dual exhaust ports


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Hey all,

 

I just have a quick question about some of the 1.8ltr old school subbies. I have a diagram of a single exhaust port 1.8ltr turbo XT header that I'm looking at.

http://mywebpages.comcast.net/thomasck/XT6-TurboHeader1.JPG

 

I've read that some 1.8ltr N/A engines have dual exhaust ports. Do any of the 1.8ltr turbo engines have dual exhaust ports? Thanks for any help!

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Originally posted by GLCraigGT

the only 1.8L engine that I know of that came with dual exhaust ports is the EJ18, which is the engine for the early Impreza. All of the EA82 and EA82T engines had just a single exhaust port.

 

Ouch! Well this just put a damper on what I was planning on doing. Oh well! :( Thanks!

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even the EA82 turbo is single port exhaust... all EA engines are single port on the exhaust, but yes, they are multiport on the intake (except spfi and carbed)

 

the EJ are all dual port, except the EJ22 from 96? (there was one goofy model, one year only, where they made an EJ22 single port!)

 

it sucked, so they went back to the standard mpfi...

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Actually... the rare, non-US model Dual-Carb EA81s had dual exhaust ports.

They were side-by-side, but they were actually separated. I have a picture of a header made for one of these engines somewhere.

 

That engine was really strange, as the intake and exhaust valves were in the EA82 positions (ei-ie) instead of the normal EA81 positions (ie-ei).

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