legacycentral bbs

So i have been doing a lot of home work looking at a ton of threads about the swaps and it seems that a lot of people a trying to talk me out of the EJ22 Motor i have both kinds the Ej22T and the Ej22 N/a what i am looking for is dose anyone have any info on the Ej20 heads should i use the single over head cam or the deal over head cam. and or is it even possible to use the duel over head cam? i know ill have to upgrade the MAF and ill have to use the N/a fuel rails for the 550 injectors when a upgraded turbo and i'm not sure what ECM to go with i was thinking about going with the EJ20 Wrx ECM and I'm thinking about using robs tune. this is all the things i THINK i know and or want to do so if anyone has any constrictive in put I'm more then will to hear it and i would love your guys in put =) thanks for reading

Check out the "sticky" at the top of the engine forum, and look for the "DOHC Unspoken Details" thread for more info. I have the ej20g engine, and while it is great, I would prefer the more torque from the 2.2 bottom end. After running the setup for a year, my opinion is a DOHC setup is not necessary.

The ej22t is setup for loads of bottom end power, and Deltacams sells drop in cams to give more breathing up top. I've driven an otherwise stock ej22t at 18psi on a td05 turbo. Compared to my ej20 setup with the same turbo, the engine had more power every where that is useful. Spoolup was around 500rpm less which is awesome.

If I did this all again and found an ej22t in good condition, I would go that route (maybe adding cams, maybe not) instead of spending $$$ on an ej20. I would have had my car running 6 months sooner too. That's my opinion and I'm sticking to it.

mike-tracy wrote:Check out the "sticky" at the top of the engine forum, and look for the "DOHC Unspoken Details" thread for more info. I have the ej20g engine, and while it is great, I would prefer the more torque from the 2.2 bottom end. After running the setup for a year, my opinion is a DOHC setup is not necessary.

The ej22t is setup for loads of bottom end power, and Deltacams sells drop in cams to give more breathing up top. I've driven an otherwise stock ej22t at 18psi on a td05 turbo. Compared to my ej20 setup with the same turbo, the engine had more power every where that is useful. Spoolup was around 500rpm less which is awesome.

If I did this all again and found an ej22t in good condition, I would go that route (maybe adding cams, maybe not) instead of spending $$$ on an ej20. I would have had my car running 6 months sooner too. That's my opinion and I'm sticking to it.

i didn't think about cams that not a bad idea either, do you think the EJ20 Heads would work on the Ej22 N/a ?

What application? N/a or Turbo? Either would work, but if you're talking n/a, then a 97-99 EJ25D set of heads would be better due to their n/a cams and not needing to plug the turbo plumbing.

Check out the "dohc unspoken detail thread"

I agree with Mike-tracy, I'm building my Impreza up right now and when I started I had a EJ22t and a EJ20g to choose from sitting in the garage ready to be put in. I needed to make a choice on which one I was going to use and I chose the EJ22t. I love the low end torque, although I have never had the EJ20g in any of my cars to compare it to. I will have the EJ20g in my wife's 93 Legacy here soon so will be able to compare a little.

Mike-tracy, what is "everywhere that is useful"? Is that like under 5000rpm?

mike-tracy wrote:What application? N/a or Turbo? Either would work, but if you're talking n/a, then a 97-99 EJ25D set of heads would be better due to their n/a cams and not needing to plug the turbo plumbing.

Check out the "dohc unspoken detail thread"

would i'm thinking about doing is get a EJ22 N/a and putting some Ej20 heads on with the Ej22T Turbo. and a few other things alone with it but i didnt know if the heads would work for that and if i could get them in time =)

All the older phase I stuff bolts together.

James614 wrote:Mike-tracy, what is "everywhere that is useful"? Is that like under 5000rpm?

That's subjective, but for my driving style, I'd prefer to have most of my power under 5k and do my shifting there.

I hear you, I agree for street driving low-mid range is where its at. The only reason I'm going DOHC is cause I auto-X and will make full use of the 7400rpm red line in the rob tune But if you don't race its almost completely useless IMO. Even with the auto-Xing I'm second guessing if its really worth it.

James, if your goal is AutoX, I still think the stock 22t would be better. I'm not a racer myself, but having extremely quick spool up and tons of bottom end would seem more important than top end power. IMO, a 4.11 or even 4.44 gearbox would be (a somewhat expensive, but) good bet to quicker acceleration. The Rob can change your redline a bit higher if you feel you're not getting what you need out of the turbo.

You could be right, but I'm already pretty far in this direction it would be a ashamed to not see do it at this point. I was thinking if I got some wiseco pistons to reuse my 2.2 block that I could gain back a bit of low/mid range and keep the top end. If I decide I really hate it I can go back to the 22T, but I don't see that happening honestly.

Sorry for thread jackig btw! I'll shut up now.

Im bringing up an old post, OP Did you do the n/a with dohc swap option? how do you like it?

I'm actually considering doing this too. Got a rod knock last week and it seems the only easy and cheap way to fix the problem is to grab an n/a 22 from pick n pull next week. What I'm trying to do right now is find out what my compression ratio will be.