Motor seized and looking for other options that is n/a for a 1994 legacy wagoooon

Heads, valves, pistons, rods, crankshaft, etc...

Moderators: Helpinators, Moderators

Post Reply
subbawho
In Neutral
Posts: 25
Joined: Mon Jan 11, 2010 7:04 am
Location: Everett Washington

Motor seized and looking for other options that is n/a for a 1994 legacy wagoooon

Post by subbawho » Mon Sep 30, 2019 3:32 pm

Sooo both of my motors are toast and in looking for a replacement. Ej22 are hard to find around me so I'm thinking of swapping a jdm ej20 sohc N/a. I was wonderjng if anyone has had any experience with the swap? From the pictures it looks like maybe swap my intake manifold and maybe exhaust but just curious if there is a set back because of going 2.0 instead of 2.2. Thanks guys

mike-tracy
Moderator
Moderator
Posts: 4937
Joined: Tue Aug 25, 2009 7:52 am
Location: Des Moines, Wa

Re: Motor seized and looking for other options that is n/a for a 1994 legacy wagoooon

Post by mike-tracy » Mon Sep 30, 2019 5:04 pm

There's the old phase 1 ej20s and phase 2 ej20s. The phase 1 version is what you want. It is identified by having raised lines and 16 Valve written on the valve covers. The phase 2 motors have smooth valve covers.

Most likely you'll have to swap intake manifolds, possibly the cam and crank sensors too. Only if they have different plugs. Your ecu will run that motor fine.

If the new motor has single port exhaust on each head, you'll need to find a matching exhaust manifold, but that will bolt up to the rest of your exhaust.
1992 Legacy SS 5mt, build in progress
Josh Colombo wrote:
Mon Jan 14, 2002 10:23 am
Wait....I'm confused now.

subbawho
In Neutral
Posts: 25
Joined: Mon Jan 11, 2010 7:04 am
Location: Everett Washington

Re: Motor seized and looking for other options that is n/a for a 1994 legacy wagoooon

Post by subbawho » Tue Oct 08, 2019 3:37 pm

Thanks for the reply. It's really hard finding a the phase one ej20. Could I get away with running the phase 2 if I block off that egr port that goes to the head?

mike-tracy
Moderator
Moderator
Posts: 4937
Joined: Tue Aug 25, 2009 7:52 am
Location: Des Moines, Wa

Re: Motor seized and looking for other options that is n/a for a 1994 legacy wagoooon

Post by mike-tracy » Tue Oct 08, 2019 5:55 pm

Nope, electrically it is incompatible, and short of machining custom parts to physically adapt your phase 1 ej22's iac, throttle body and etc, as well as building resistor patch harnesses for the injectors it won't work.
1992 Legacy SS 5mt, build in progress
Josh Colombo wrote:
Mon Jan 14, 2002 10:23 am
Wait....I'm confused now.

subbawho
In Neutral
Posts: 25
Joined: Mon Jan 11, 2010 7:04 am
Location: Everett Washington

Re: Motor seized and looking for other options that is n/a for a 1994 legacy wagoooon

Post by subbawho » Tue Oct 08, 2019 11:18 pm

Hmmm. Just throwing a hail Mary but what if I were to put the phase 1 intake manifold on instead of using the phase 2 manifold? Will it not work because one is direct injection and one isn't?

mike-tracy
Moderator
Moderator
Posts: 4937
Joined: Tue Aug 25, 2009 7:52 am
Location: Des Moines, Wa

Re: Motor seized and looking for other options that is n/a for a 1994 legacy wagoooon

Post by mike-tracy » Wed Oct 09, 2019 2:33 am

That would solve most of the issues other than the timing crank and cam sprockets being wrong. Someone in the UK (Carl Davey?) Created conversion spacers. However... The intake manifold has to be cut in half and widened!

Better bet is to swap in any EJ shortblock between your 2 best heads. As long as you swap over your crank sprocket and crank position sensor, it would work. If you put a 2.5 shortblock in, you will probably need to run premium, or at least plus. If you put a turbo shortblock in, you will have lower compression and the car will be even slower than it was.
1992 Legacy SS 5mt, build in progress
Josh Colombo wrote:
Mon Jan 14, 2002 10:23 am
Wait....I'm confused now.

Post Reply