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- เผยแพร่เมื่อ 30 ก.ย. 2024
- Does your Subie need a little more juice? Has "just swap it" been preached to you? Here's how that goes.
If your car has a 5 speed-
-notch current or swap in wrx subframe
-potentially swap steering pump/line
-swap throttle cable
-remove the dash/fenders to replace the bulk harness and ecu with the corresponding unit.
My original and wrx harness both came from an 02 impreza chassis so I didn't need to merge anything, although 5% of clips didn't match up.
If your body style never came turbo in the US or you don't have the corresponding engine you will need a custom merge but the hardware will fit all the same.
If your car does not have a 5 speed- get one.
At the same time it is wise to replace: motor mounts, clutch, flywheel, all gaskets, water/oil pump, timing belt, and flush all your fluids. You also may need a new radiator, I did.
Oh, and for all I know 08+ are crazy different and none of this applies. Usdm Ej205 seen here
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Awesome Subie!!!! Working on boosting my Ej25 sohc Baja at the moment. Nothing crazy, gt28 turbo with stock internal. Looking to get close to 200bhp... Subaru are such fun cars!!
Hey man i got a Gc8 impreza i wanna 02 forester swap. Do you think its possible, and what would I need?
Hey man, my '07 impreza 2.5i NA decided to spice things up with a thrown rod recently. I just pulled the motor a few days ago for fun with some friends but I am considering swapping it with a turbo motor. The new motor would come with the full engine harness and I would get a matching ECU of course, what I am wondering is if you really need the whole bulkhead harness to go with it? Also I have the fuel line issue with two original lines, let me know if you have got any more info on that. Thanks!
You'd gave to swap the harness and run a fuel line, you can get the fuel line pretty cheap from a junk yard. There's plenty of information on forums of people doing it. Going from NA to turbo is why you need to swap the harness and ECU.
I’m planning on doing something similar, and yes the bulkhead harness is different between the EJ253 NA and EJ255/EJ257 turbo motors. You will need to swap the entire bulkhead, and additional modification to the harness may* be needed.
The other thing you need to take notice is that the CAN-bus system may or may not give you trouble, and the immobilizer will need to be reset. I’m still trying to figure this stuff out as well, especially if the CAN-bus modules communicate the same across NA and turbo subies
Finishing my swap rn on 06 2.5i na to ej20x swap
Awesome may have to do this once my 07 2.5 throws a rod.
Thanks for the overview I have a ej20 I pulled out of a wrx and have everything for it all the wiring harness ecu aftermarket exhaust etc. only question I do still have is about the fuel lines my Impreza has only 2 and the ej20 has 3 did you run a new line back to the tank or is there a better way to go about it?
That's tough, mine was a direct swap given it had three lines already. Adding that third line sounds like it'd be a pretty involved job but the chassis' set up for it and the parts can be found on scrap cars for pretty cheap so it can't be impossible.
Awesome thanks for reply man i hope i can get to getting mine done soon i have 4 engines sitting around and nothing to do witn them
Just started this swap on my 08 Impreza 2.5i NA. Throwing in an 05 WRX EJ20 engine turbo charged. Would you mind answering a couple questions? I figured out the subframe cut out (glad you mentioned this specifically)
An 08, yeah? I hope I can. What's up?
Ryan Yea, didn’t give in to the “buy a WRX” talk. From what I know, the engine is a direct fit. However for the ecu and wiring, would I need it from the same year EJ20? With so many made I’m sure there are differences. Also besides the subframe cut, are there any steps I’m overlooking. Couple videos mentioned a fuel line. Thanks for the reply!
@@aaron4100 While they're broadly similar, they'll sometimes have minute differences that'll make you dizzy with anger. The most Important thing is finding the turbo harness for your car (US spec?) and matching it with a motor of pretty much the same year. For that year in the US they used 2.5 while japan stayed 2.0 and I think you could go either way with careful planning. As for the fuel line if you have three on the drivers side of the engine bay you're good to go. I think some models came with two and I'm not sure what to do then
I'm trying to do the same as you mate but we got a 1.5 litre model equivalent to the 2.5i, here in the UK. My donor is a 2005 forester XT that has the same EJ205 engine as the wrx and the impreza is 2008 so drive by wire the same as what you get I imagine? only seen one video of a guy on here swap an EJ20 into the GR hatch but he only complains about the wiring and starts it, no real info.
@@aaron4100 Hopefully 2 years isn’t too late. You will need to swap over the ECU, engine wiring harness, and the bulkhead harness (built in to the dash). You’ll also have to reset the immobilizer anytime you swap ECU, gauge cluster, and other components with an immobilizer built in.
Because you’re also talking about an 08+ year model, you may need to worry about the CAN-bus system which communicates with the following: VDC(ABS), TCM, ECU, steering angle sensor, radio/navigation unit, HVAC, gauge cluster, and the body integrated unit. Hopefully if I figure something out, I can post a very detailed and thorough explanation the internet needs hah.
Im thinking about doing a h6 swap in my 1999
Did you use the ej251 coil pack or did you use the ej205 coil packs? And how did you get those to work.
The engine, wiring, and ecu all come from the 205
@@masturcheef105 oh I thought you used the single cam ej25. Not the turbo motor.
I’m about to swap an 03 wrx with jdm ej207 into my Impreza
Does it work for a 98 Impreza 2.5RS?
Yep. You do this same basic procedure but with a custom wiring harness so your switches and dash work.
I’ve got a 2003 gx Impreza non turbo I wanna turbo my car I don’t have the money to sell it and buy a wrx since they’re quite expensive but I’m happy to turbo my car or buy an ej20 turbo engine and swap it
Oil drain for turbo?
Is how it would be from the factory. It's the real wrx motor swapped in, not an na-t build.
i skip from the first to seconds to when the danny brown song comes on . INSTANT LIKE
Think this swap would work in a manual 04 forestor NA?
Sure would. If the chassis comes in a turbo trim for the same year it's mostly a direct swap.
Ryan makes sense. I’ll do some more research on it. Gonna see if I’ll need a new trans or if I can keep it. EJ255 out of an xt is definitely on my radar. Thanks man 🤙🏾
@@humblegrayman7651 99% sure on the 5spd. It'll bolt up and after that I think it's just your speed sensor, neutral pos. switch, and reverse lights you have to look after.
If you're thorough and smart about it you'll always be glad you did. Good luck!
Wrx don't have rear lsd.
kitty over there chillin
hey man so i can use a 02 to 07 harness on my 02 and you don't merge anything? only thing that has kept me from this was the merge if you got some info that be cool.. i come from hondas and swaps and all that so swap is nothing to me just not a wire guy
Generally speaking, yes. As long as the motor, ecu, and harness are all the same year they don't really care what they're sitting in with little to no extra work. I've heard of fuel line complications but didn't run into any.
Hi i have 1999 impreza gf8 non wrx, can i put turbo in it or do a wrx swap for better performance!
Cheers
Hey,
If you have the tools, time, and confidence for a wrx swap it's very rewarding.
The hardest part is merging the wrx harness with the gf8 but it's definitely possible and you'll know a LOT about your car after.
iWire is a company that can do the wiring job well if you don't want to.
I'm still driving this car 100k miles later and I've never regretted swapping it.
@@masturcheef105 thanks 🙏
How much of the harness did you swap?
From the headlights to the dashboard, it's all one piece.
love this.
Do u have to change ecu along with worring harness ?
Indeed.
So what happen with the other 5% of clips that didn’t fit? Also did you use your same ecu from the N/a bug eye or did u swap it for the wrx ?
Also the wires the wires in the side of the car you swapped that and the dash wiring ?
@@infidelgames_4572 All of the wiring from headlights to ecu are purely wrx and little clips like mirror adjusters can be rewired.
hey i have an 07 impreza i wanna wrx swap, is it worth it? and how much you think it would roughly cost?
Hey sorry for the late response.
It really all depends on the situation. It made sense for me because I had the parts and it is actually pretty straightforward if you can wrench. This car went on to do 600mi work weeks for 6-8 months, made a one-way trip from coast to coast, was lived in for another several months, and continues to keep it moving. If you have the time, money, ability to live without a car and you genuinely want the experience you'll never regret it. Full swap including motor, new clutch, exhaust, ecu, accessport, tune, and random bits and pieces probably put me close to $1500.
@@masturcheef105 damn thats a long wait. do you know of anyways to get out a bit more horsepower without swapping it or putting in a turbo.
How far did you have to notch it back
The trick is getting it as far forward as you can. If I can remember right the patch is as wide as the pipe and probably 3-5 inches back.
I have a full wrx donor but it’s automatic would I need a new harness and ecu?
Hey man, clean car. You can actually modify that one for a 5spd. Check out the forums if you want to knock that out yourself.
Ryan thanks man and I’m gonna try my best 👍🏻
@@halfbreed_saab3032 It's 100% worth it, good luck!
The differences between your car and a wrx is a way more than you mention. Clutch, transmission, sensors (02, cam position, etc), ecu, spark plugs, coils injectors compression ratio suspension. Your also single overhead cam. The only way I recommend throwing a turbo on a car like this is if you have many spare parts lying around. Price per power wrx is way more cost effective. Not only that but your literally buying wrx exhaust and intake parts. Writing this for the average person coming across this video wanting to turbo their Na Subaru. Buy a wrx instead.
Did you watch the video before commenting? This isn't NA-T, it's a direct wrx swap.