Ok I've been reading up on doing the EFI swap. Here's a few things I've learned: - The 22RE intake doesn't bolt onto a 20R. - There are 2 different intakes, early and late, and some debate to which is better. First off, is it true the intake doesn't match up to a 20R? Did they change the mating surface that much? I think someone mentioned that you can re-drill the intake for the bolts that line up. So this is what i'm guessing what I'd need for the swap if it would bolt to a 20R: - Intake - MAF - Throttle body - CPU / harness - Electric pump - 3/8" fuel line from tank - Pressure regulator? - Exhaust manifold with O2 sensor bung. When the 20R dies I am planning on doing a 22RE swap anyway, so getting prepared in the meantime and collecting the parts will help anyway. I figure I'm safe grabbing the right intake used, but the throttle body, MAF, and CPU I would think would need to be new along with injectors. Also, is there a diagram for the swap?
you could look for a complete motor and everything you need on craigslist.or buy a complete pats truck with everything you need!!!!
The 20R has circular ports on the intake side, while the 22R has square... I would just gather all the stuff for the 22RE swap.
I haven't heard anybody say they prefer the early intake over the later. But guys have said that the early 83/84ish celica EFI setup is a more simple swap in. While you're rounding up parts, grab a supra AFM (at the airbox) to use for the housing. You can put 22re guts into it. It is larger inside. There is also one from an early 5M supra that will directly plug and play, you'd have to research in on www.celica-gts.com more, I forgot which one it is. The throttle body from a V6/I6 toyota/lexus motor might be modifiable to your motor too. Might as well make a simple setup if you go through the work of doing it. No emissions, good flowing system on the IN side. Thats their biggest holdback. I've thought about it myself. If you are good with with aluminum welding you could take a 1/4 plate and make a flange for each heads intake ports. Bolt one to the 20R head, then the other to the 22R intake. Have a short runner of about 2". Probably have to make it from solid square stock, and ream out the center to the 20R intake size, then manually taper that into the 22R square port with porting tools and such. Same concept could probably be done by welding the square stock onto the lower intake of a 22RE, and using the same techniques. The only reason I would suggest all of this, is the compression boost of having a 20R head on an early 22R block. EFI hybrid
You had me at Hybrid EFI Made my eyebrows go up and go "hmmmmmm......" I was planning on swapping it when the 20R died... so collecting the parts now would be good so I have everything. Celica intake's an easier swap... K, I'll check that out. I wonder how much power you could squeeze out of a Hybrid EFI setup... What would that be, a 20/22RE? Oooooo a 22REHP! Damn it dude, you got the wheels turning now
Haha. Stock EFI has limitations on tuning vs cost. Megasquirt is a better choice. I saw a guy with a hybrid and he used the TBI style throttle body from a V8 on a stock style manifold. Might have been an offy/holley 4bbl intake.
Nope, stock 20R- then 22R manifold with that 2BBL throttlebody setup. I have switched to the EFI manifold using 4 of those same injectors and WOW what a difference this makes, way less finiky, but I am still fine tuning the cold starts. The later manifolds are better as far as flow is concerned, or if Megasquirting-delete the EGR passage restriction on the early manifold and source a 5MGE TB (eariler the better) and fit it to the 22RE intake for 5mm overbore with stock reliability. This is my current setup and after fine tuning the maps for the smaller 262 cam I am liking the results.. I still have the parts and maps for the 20RE Holley swap... 4x4 guys...hello...
to answer the question on the early and late intakes. If you take a look at them, the early is angled down where the TB bolts on, that and just inside it the egr parts right inside the hole. the late intake is my straight and if im correct a bit better flow. i will have to look for the post on the 22rte forums site and then post a link.
Ok so I'm definately keeping the truck now that I have the Scion, soooo... I'm back to collecting parts for a 22RE swap. I have all the other info for parts, but there's a few things I'm still lacking. 1. How does the fuel system need to be set up? When this swap is done do people just swap the EFI tank in, grab an inline fuel pump and use the stock tank, or what? Would the later tank even fit an '80? 2. Is there a wiring diagram somewhere for the swap? I'm sure it can't be too difficult, besides finding a place for the ECU (probably in the glove box or under it) it can't be more than a couple sender lines, Constant, key Power, and ground. I'm sure the TPS wiring and injector wiring are both part of the EFI harness. Are the other senders (water temp, therm switch, oil etc) part of that harness? 3. Since I have that header I figure I'd just have a bung welded in for an O2 sensor right below the collector, right? 4. I'd have to get the 22RE specific dist / ignitor right? 5. the Alternator mounts the same I assume, but I think the 22RE has a different pipe for the heater hose return, that comes out of the front cover under the header. I can just keep my stock 20R radiator with the hose the way it is and just block it off the same I'm guessing. probably a redundant question. My 20R warms up and even when it was hot out never even heated up much, so I'm assuming a 22RE isn't gonna be much more or a struggle. 5. There's probably a 22RE specific front pulley / damper, right? 6. 22RE water pump. I think I covered my bases right? What's the most reliable ECU to grab? I would figure as late model as possible, so a '95? That's the last year they made 22REs, right? Thanks for any and all help. now that I'm not in any dire need to fix the truck, I can plan it out and gather all my info before making a decision. I figure I'll get all the parts together except the actual motor, and when I'm ready I'll find a rebuilt one, slap it all together and install it when i'm ready. So as far as power I'm looking at a small bump, but as far as smoothness / reliability / efficiency I'm probably taking a quantum leap I figure.
how about you just trade your truck for my 22re truck ? lol also google "22r to 22re swap" its a thread on a 4x4 website that has all the info.
So you still making a hybird EFI motor? Or just going swap one 22RE? How were you guys planning the EFI Hybird, 22RE block(or 22R block?), 20R head with custom intake fabbed up for the EFI?
I was just going to do a stock 22RE and maybe throw a K&N air filter in it, that's about it. The Hybrid wasn't my idea although it's kind of a cool idea. I'd have to have someone make the intake so that shoots that idea right down.
Sounds like the hybird would be mean. What block were you guys going to use though, the 22R or 22RE block?
OK, another question I just thought of, when you do the swap do you have to swap the fuel tank too because of the pump? I would guess that it would be an in-tank pump. And does the tank fit in earlier models (like an '89 into a, '80, for example). I know the tanks are different, but are they different physically to the point where it won't mount, or interferes with the frame?
Kind of resurrecting an old thread, but: toyota 2wd pick ups - Installing GM 1 Wire alternator on 20R The third post on this thread mentions using 'a stock EFI throttlebody (2bbl) from an 85 Ford Crown Vic'.
As far as the fuel tank, I know that inline fuel pumps after the tank wont work for the EFI setup. They don't make enough fuel pressure to sustain the whole fuel map of a stock RE setup. Been there done that. You're better off getting a junkyard EFI fuel tank with an electric fuel pump. Or just installing a later year EFI fuel pump on your existing tank. I gotta double check but i think the later year fuel tank has more bolt holes for the electric fuel pump compared to the earlier year vaccum style pumps on the tanks. So you might need to drill and tap a few more holes if installing an electric FP on your existing tank. And yes installing a later year fuel tank on your truck is possible. Been there done that, some fabrication may be required.
