I'm getting a couple ea81 turbos soon, - one with a bad bottom end, the other is assumed running condition - and I'm considering using the good ea81t in a ea82 wagon with SPFI. I don't have the ecu's or the MPFI wiring. Here's what I'm thinking:

 

-EA81T block w stock turbo cam

-EA82T Heads shaved .025", maybe not( I'm aware of the change in valve geometry)

-EA82 Pistons(compression bump)

-EA82 SPFI (Already in the car)

 

Ok so I've dropped ea81's into ea82 cars before with spfi, but I have no experience with the turbo ea81s. I'm not gonna use the MPFI injectors, but they'll stay to plug the injector holes.

 

Once I get the compression up, my big question is the EA81 cam...will it be worthwhile?

Gutless(more gutless than a stock ea81 under ea82 spfi)? I'm not interested in building an ea81 turbo, but I have these parts and I wouldn't mind a running engine.

 

I couldn't find any info in going from ea81 turbo-->ea81 non-turbo w/ spfi or weber, any input is appreciated! TIA

 

Josh

 

There is almost no question that you will be much happier with an EJ swap.  Sell those EA81T parts to me.

There is almost no question that you will be much happier with an EJ swap.  Sell those EA81T parts to me.

Send me a PM and let me know what you want.

Hey, maybe this can yield you a gas tank for "my" old turbo coupe!

There is almost no question that you will be much happier with an EJ swap.  Sell those EA81T parts to me.

If I was doing a swap than yes, I'd go EJ, but I was just trying to get a running engine out of some free parts. As it turns out, I got two na ea81 heads from a buddy so now I really only need the good ea81 short block. I'll take pictures this weekend of everything else to sell off. Send me a PM if you'd like firsties on anything.

 

Still curious though, has anyone ever used ea81 mpfi heads under spfi or a carb? What about the ea81t cam, any idea how it does on a non boosted engine?

 

Josh 

I'm sure someone, somewhere has used EA81T heads in a N/A application, but not a high enough number for it to be considered tried-and-true.

 

I'm not sure if there are even different part numbers for the EA81T camshaft but if Subaru did it properly, the EA81T cam would not make for a very powerful N/A engine.

Hey, maybe this can yield you a gas tank for "my" old turbo coupe!

Yes maybe. The ecm was the biggest problem. I do need a tank for it though.