a friend just got an 83' ea81 2wd hatch.. its got a single barrel carb on it now..

 

what i am wondering is if this spare 2 barrel ea82 carb will bolt onto that manifold or not? or do i need to get a 2 barel ea81 manifold?

 

ohh, he's got the factory cargo cover for his hatch too rare find

He'd be better off getting hold of an EA82 manifold to use. It will bolt onto the EA81 motor. The EA82 manifold has a larger opening at the carb base; more air flow/less restriction = more power.

 

Besides, we're talking about three different carbs here, and all three have manifolds that are unique to their carb: EA81 single-barrel Carter-Weber, EA81 two-barrel Hitachi, and EA82 two-barrel Hitachi. All these manifolds will bolt onto EA81s and EA82s, but each has a different bolt pattern for mounting the carb on top of the manifold.

 

I might be wrong about the two two-barrel carbs not interchanging, but I know for a fact that the EA82 manifold has a larger opening at the carb base; I eyeballed them side-by-side once.

 

a friend just got an 83' ea81 2wd hatch.. its got a single barrel carb on it now..

 

what i am wondering is if this spare 2 barrel ea82 carb will bolt onto that manifold or not? or do i need to get a 2 barel ea81 manifold?

 

ohh, he's got the factory cargo cover for his hatch too rare find

He'd be better off getting hold of an EA82 manifold to use. It will bolt onto the EA81 motor. The EA82 manifold has a larger opening at the carb base; more air flow/less restriction = more power.

 

Besides, we're talking about three different carbs here, and all three have manifolds that are unique to their carb: EA81 single-barrel Carter-Weber, EA81 two-barrel Hitachi, and EA82 two-barrel Hitachi. All these manifolds will bolt onto EA81s and EA82s, but each has a different bolt pattern for mounting the carb on top of the manifold.

 

I might be wrong about the two two-barrel carbs not interchanging, but I know for a fact that the EA82 manifold has a larger opening at the carb base; I eyeballed them side-by-side once.

 

you are right. you need the ea82 manifold for a ea82 carb.

you are right. you need the ea82 manifold for a ea81 carb.

 

I think you meant to say you need the EA82 manifold for a EA82 carb.

I think you meant to say you need the EA82 manifold for a EA82 carb.

 

yes, thanks. I updated....

FYI His Friend Happens to be me! That '83 is my first subaru and this is my first post! Took the "Eggroll" out on its madian voyage, personally, i think i had too much fun. Either way, Subi-newbie on deck, and your advice is gladly appreciated!

 

-dC

arg, lemme go dumpster diving this morning, if it hasn't been emptied yet. i tossed a ea82 manifold away the other day..

 

thanks all

Just for those that didn't know, here's the difference between the EA-81 and EA-82 carb ports on the manifolds.

 

http://www.ultimatesubaru.org/photos/showphoto.php?photo=6660&sort=1&cat=500&page=1