OBDI EJ18 long block into OBDII EJ22 car

[s'ko]

For those who don't know, I spun a bearing on my EJ22 motor and I need to get this car running. the EJ18 is only temporary until I get the EJ22 rebuilt.

 

So the main issues that I see right now are

1) Need dual port exhaust header.

2) Need to figure out how to bolt on a knock sensor

 

anything else anyone can think of?

 

Thanks

 

BW

[mellow65]

maybe egr not sure if yours had one or the 1.8 had one.

 

the coolant cross over tube (thing under intake). some of the newer stuff went to a single temp sensor and the older stuff had two. in my swap i just swapped the cross over tube from 2.2 on to (in my case) the 2.5. it bolted up and i didn't need to worry about swapping the sensors.

 

your cam and crank sensors, and your oil pressure sensor. but those are an easy swap.

 

as for your exhaust, snag anything from a obd2 ej25 or very early 2.2. they have the duel port and the crazy turn in the exhaust that should bolt up. if you were closer, i have one just sitting in my garage i would let you use.

 

i'm not sure if the 1.8 had a threaded hole for a knock sensor, but i have seen guys move them to the top of the engine side of the bell housing.

 

can't think of anything else right now. i will put more if i can think of anything.

 

good luck.

[idosubaru]

it would help to know what year EJ22 you're talking about and whether it's from an auto or manual.

 

the knock sensor will bolt right up. the hole is there and i think it's even threaded (at least on mine it was).

 

you'll need to fabricate a block off plate for the hole in the passengers side head exhaust port. i cut one out of steel plate, used the original EJ18 gasket that goes there and coated it with sealant on both sides.

 

bolt the EJ22 intake manifold to the EJ18.

 

i think i covered everything in your other thread.

[subaru360]

I have a few of the dual port headers from a legacy if it's the same and you need one.

[idosubaru]

I have a few of the dual port headers from a legacy if it's the same and you need one.

that will work, i've bolted EJ25 headers right up to an EJ18. no problems, direct fit. and i've also had a set of headers shipped before. tape some cardboard to them and slapped a label on it. cover any sharp edges and wipe off dirt/oil.

[s'ko]

2000 OBDII motor 5 spd manual.

 

Subaru360 pm'ed you for headers

[idosubaru]

2000 OBDII motor

oh crack. i didn't realize you were working on something that late, this will likely have some issues.

 

that will have an EGR valve though, so that's easy enough.

 

the intake manifold changed on the EJ22 at some point and won't bolt up to the EJ18. i think a 2000 might fall under this umbrella. so your 2000 EJ22 intake won't bolt to your EJ18 engine.

 

if the 2000 intake manifold won't bolt up to the EJ18 you're next option is to swap the entire 2000 wiring harness onto the EJ18 intake manifold. a bit of a job but not out of this world...if everything is compatible which i can't answer but i would think it's workable at least.

 

the EJ18 manifold is a messy animal so you might play with the idea of finding an earlier EJ22 intake manifold and swapping the 2000 intake wiring harness onto that. so......put your 2000 intake manifold wiring on a 95-98 EJ22 intake manifold and bolt that to your EJ18 - just an idea.

 

on earlier...say up to 1998 or so...you can swap EJ18,Ej22,EJ25's and not swap cams. but on the later models...i think your 2000 will be one of them, you'll likely need to retain your cams. so you'll need to bolt the 2000 EJ22 cams to your EJ18 engine. this is...speculation based on experience if that makes any sense? i haven't done this exact swap nor do i recall exact years and difference, but i'm pretty sure this will be the case for an EJ18 swap into a 2000 EJ22.

[s'ko]

So what you're telling me is that it might not be a simple 1 day swap.

 

hmm.... that sucks.

 

BW

[idosubaru]

So what you're telling me is that it might not be a simple 1 day swap.

i'm leary of it being a simple one-day job. i think you'll find you have the newer EJ22 that is not the same as 1998 and earlier EJ22's and EJ18's.

 

if you find out they are different then the way to make it quick is to get a 2000 intake manifold (just like yours) or just the wiring harness if someone has one and try to swap it to an EJ22 intake of an earlier year that will bolt to your EJ18...of course you'd hate for that not to work.

 

basically you need to find out if your 2000 wiring harness will easily swap onto an earlier EJ22 intake (1998 or earlier). i would think it does, but can't promise that. the main thing to check is the fuel rails and fuel injector connectors.

 

you could probably bolt your 2000 EJ22 heads to the EJ18, but that's a can of worms i don't know about. and i wouldn't want to go through all that, then you need to check and mill the heads, buy head gaskets and adjust the valves. more money and time.

[s'ko]

you could probably bolt your 2000 EJ22 heads to the EJ18, but that's a can of worms i don't know about. and i wouldn't want to go through all that, then you need to check and mill the heads, buy head gaskets and adjust the valves. more money and time.

 

I do plan to use a ej25 shortblock and make a high compression frankenmotor. I just wanted somthing that i could fix quickly and be able to drive it.

 

If I this is going to be more complicated than a long block swap, I am going to have to hold off until the RX is out of the garage. I am really close to getting it all back together.

 

BW