Skip to content
Aussieveedubbers

EJ22 to EJ20T

0 likes
Share Share on Facebook Share on X Share on Reddit

Volksaddict Wolfsburg Wizard

533 posts · joined Dec 2004 ·

#637123
hey people
am chasing info on changing my EJ22 powered dualcab to EJ20T.
i have been told the computers are different but are the plugs for the ECU different? what extra wires are in the EJ20T engine ECU that would be different? the adapter and flywheel the same? any other info i might need to know?
cheers
rhys
Cheers&Beers
Ray V

OZ Towdster Keen to finish some projects

1,921 posts · joined Dec 2003 ·

#637141
Hey Rhys are you feeling a little old right about now. As apparentley your old mans running around like some 20 year old 😀😀😀
Don't let body work get in the way of real suspension travel

71EJVan Officially Full-On Dubber

352 posts · joined Aug 2005 ·

#637150
Your adaptor, flywheel and clutch will be ok. With the electrics, grab a ecu pinout chart for each and compare. I think you will have to relocate some pins in the plugs.

Also consider where the turbo and intercooler is on a EJ20T. If your fuel tank is in the stock location and you want to keep the motor stock they will clash. You will have to move one or the other. I moved the tank. I you want to move the turbo a PWR cylindrical water to air intercooler is the go. Check out VWRX synchro conversion on the web. It shows this type of relocation.

Brendan
A VW for everyone!!

1972 1302 German Look
1971 Bay Panel with Subaru EJ20T
1970 Type 3 squareback in progress
1971 Type 3 notchback in progress

ratbug aka toddy101

439 posts · joined Jan 2003 ·

#637152
Hi Rhys, I am wiring up my EJ20T using an EJ22 loom (couldnt find any ej20T looms at the time). They are very very similar, only difference is that the ej20t loom has a few extra wires (4 coils instead of two, pressure sensor and wastegate solenoids). I have compared the ECU pinouts in the wiring diagrams and my loom and they are exactly the same. The ECU's are physically the same with the same plugs, but you will need the different ECU as it will have different software. Just make sure you get the same model series.

Adaptor and flywheel will be the same.
Sharbuilt Beach buggy with Subaru 2L Turbo
Thunderanch Riot with Subaru 2L Turbo
Manxter with FA20turbo
Click here for wiring looms

kombi_kid Moderator Good Kid too many projects

124 posts · joined Aug 2002 ·

#637199
ahahahahaha andrew yer dad is acting young again..... no my username wont allow me to start threads so i thought i would use dads account too!!
brendan fortunately enough my kombi is a dual cab so i dont have the fuel tank in the same location as vans so its not in the way from what i have been told?
where are you running the intercooler brendan? i was thinking of moving it into the spare battery tray area and ducting it in?
any other catches i might come across?
cheers
rhys
it aint just cool its aircool'd

71EJVan Officially Full-On Dubber

352 posts · joined Aug 2005 ·

#637257
My intercooler and turbo are in the stock location although I am using a Liberty water to air unit. My intercooler radiator is above and next to the starter motor and the circulating pump is where the battery use to be. This gives the right level so that the system does not need priming.

Regards

Brendan
A VW for everyone!!

1972 1302 German Look
1971 Bay Panel with Subaru EJ20T
1970 Type 3 squareback in progress
1971 Type 3 notchback in progress

kombi_kid Moderator Good Kid too many projects

124 posts · joined Aug 2002 ·

#637293
ok sweet i have looked in your post do u have any pics of the intercooler etc mounted up?
and also anyone know if a new engine mount will need to be made or modify the one i have?
cheers
rhys
it aint just cool its aircool'd

seagull Compulsive Aussie Vee Dubber

4,979 posts · joined Dec 2003 ·

#637320
Mr Rat bug ( Andrew ) if I recall correctly can you please post up the info on the pin outs

I have a stack of wrx ecus here in the west & I think I may have a few looms in the shed

rhys the mounts are the same EJ22 are a smaller block but the mount holes are the same

you guys should be fitting wrx heads & pistions to your ej22 donks & turbos
Looking for that special lady : PM me for coffee & cake

kombi_kid Moderator Good Kid too many projects

124 posts · joined Aug 2002 ·

#637325
ok sweet is an EJ22 just a stroked EJ20 NA?
it aint just cool its aircool'd

seagull Compulsive Aussie Vee Dubber

4,979 posts · joined Dec 2003 ·

#637420
you can use a ej22 bottom end

or a n/a ej20 ( quad cam )

& turbo each
Looking for that special lady : PM me for coffee & cake

rocknrob Insano Dub Head

844 posts · joined Dec 2003 ·

#637422
will the standard ej22 ecu cope with a standard sort of turbo?
❓

kombi_kid Moderator Good Kid too many projects

124 posts · joined Aug 2002 ·

#637428
so with the fitting of EJ20T heads and pistons to a EJ22 lowering the comp ratio you can turbo a EJ22? obviously the exhaust flanges are the same for the turbo pipes etc?
sounds good in theory but still have to find a EJ20T heads and pistons and turbo setup and then do it all or just buy a EJ20T complete and do a few mods (bigger high flowed turbo, wind upo the boost, bigger intercooler) and achieve a good 200rwkw?
food for thought though!! how do u reacon the EJ22 internels (crank etc) would handle being turbod?
cheers
rhys
it aint just cool its aircool'd

seagull Compulsive Aussie Vee Dubber

4,979 posts · joined Dec 2003 ·

#638376
kombi_kid wrote:so with the fitting of EJ20T heads and pistons to a EJ22 lowering the comp ratio you can turbo a EJ22?

yes

obviously the exhaust flanges are the same for the turbo pipes etc?

yes
sounds good in theory but still have to find a EJ20T heads and pistons and turbo setup and then do it all or just buy a EJ20T complete and do a few mods (bigger high flowed turbo, wind upo the boost, bigger intercooler) and achieve a good 200rwkw?

ej22 go better

food for thought though!!

how do u reacon the EJ22 internels (crank etc) would handle being turbod?

there fine , many have done this , find a closed deck ej22 & your even better


cheers
rhys
Looking for that special lady : PM me for coffee & cake

kombi_kid Moderator Good Kid too many projects

124 posts · joined Aug 2002 ·

#638599
yer it is good food for thought!! would be good to find a stuffed EJ20T??
cheers
rhys
it aint just cool its aircool'd

rocknrob Insano Dub Head

844 posts · joined Dec 2003 ·

#638846
if turboing an EJ22 where might the oil line from? where does it come from on the EJ20T❓

1303Steve Scirocco Rare

8,650 posts · joined Aug 2002 ·

#638876
rocknrob wrote:if turboing an EJ22 where might the oil line from? where does it come from on the EJ20T❓
Hi

You can tee off the oil pressure switch like most after market turbo systems do.

Steve

rocknrob Insano Dub Head

844 posts · joined Dec 2003 ·

#638902
ah yes❗ thanks

seagull Compulsive Aussie Vee Dubber

4,979 posts · joined Dec 2003 ·

#638995
you fit the wrx heads , this is the oil delivery & drain
Looking for that special lady : PM me for coffee & cake

1303Steve Scirocco Rare

8,650 posts · joined Aug 2002 ·

#639020
even easier

rocknrob Insano Dub Head

844 posts · joined Dec 2003 ·

#639079
Hi Neil i saw above that you have a variety of ecu's and according to "ratbug" above i need to replace my NA ecu with a turbo one of the same year. mine is a 91 liberty with a D5 ecu...what you have the sort of thing i need?😀

speedster356 Plastic not Classic Racing

1,624 posts · joined Aug 2002 ·

#639169
I used an NA 2.5 block I got for free and fitted USDM 2.5T pistons and rods I got new for $200. These pistons/rods were removed from one of the US 2.5turbo blocks that are being sold new here for $3k. The owner wanted to fit full forged pistons so he could run huge boost. Fitted my WRX heads and turbo etc. I'm only running lowish boost.
Spyder-WISD 07-09-05 11.6s @ 125 MPH

Speedster-WISD Nats 05 14.4s @ 89 MPH

Jet cruiser-Coogee 22-09-05 900 deg C @ 110,000 rpm

Weaseling out of things is what separates us from the animals....................Except the Weasel.

rocknrob Insano Dub Head

844 posts · joined Dec 2003 ·

#639227
peter did you change pistons to get lower compression? stronger rods obviously. I only want to add minimum boost to my EJ22 cos its in a kombi...an extra 30 -40 HP would be fun🙂

speedster356 Plastic not Classic Racing

1,624 posts · joined Aug 2002 ·

#639242
The US domestic STI 2.5 turbo pistons are stronger, and cheap! I think I ended up with an 8.5:1 comp? Cometic gaskets come in various thicknesses to get the correct comp. Check with your local Subaru performance engine builder and you might uncover some cheap new USDM pistons.
Spyder-WISD 07-09-05 11.6s @ 125 MPH

Speedster-WISD Nats 05 14.4s @ 89 MPH

Jet cruiser-Coogee 22-09-05 900 deg C @ 110,000 rpm

Weaseling out of things is what separates us from the animals....................Except the Weasel.

seagull Compulsive Aussie Vee Dubber

4,979 posts · joined Dec 2003 ·

#639362
Yes Rob , I should have what you need mate , I have a look & get back to you , yours is a 4 plug if I am correct .

I am very keen to get hold of ratbugs number so I can give him a call , I did have it here but some how have lost it 🙂

Peter hows things ? Mike is building his mid mount Vw bug race car , I have had a look at it , I can only hope its not as fast as my Silvia 🙂
Looking for that special lady : PM me for coffee & cake

kombi_kid Moderator Good Kid too many projects

124 posts · joined Aug 2002 ·

#639380
what boost you running pete? good to hear from ya too u heading to valla again?
have seen on ebay a few cheap EJ20T's even a EJ20TT and auto gearbox for $950 buy it know??
will ring a importer up here and get a price for a stuffed EJ20T!
cheers
rhys
it aint just cool its aircool'd