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ej20t engine into L series
Posted: Sun Mar 15, 2009 4:19 pm
by Mr Top Hat
hi my names Rob
i currently have a 90 L series with a 1.8l ea82 engine
i am planning to put a ej20t engine in it
is it reasonably easy to do ?
i want to keep the original gear box for the hi and lo gears
is there any chassi mods involved ?
Posted: Mon Mar 16, 2009 5:26 pm
by El_Freddo
G'day Rob, welcome to the forum.
Probabily best to
read this and remember that you're reading for info on the L series only.
After reading that, any other questions you have others will beable to answer
Cheers
Bennie
Posted: Mon Mar 16, 2009 7:25 pm
by AndrewT
Yeah it will work but stock up on gearboxes and take out life insurance, they don't last with that much power and it gets abit hairy sometimes when you have the ability to break traction on the wheels that are steering you at practically any speed.
It's not that hard to do, all the info is around here, spend a good few hours reading up on the forum.
Posted: Mon Mar 16, 2009 7:30 pm
by Alex
its an awesome conversion.
i have EVERYTHING you need to do it here if you're keen. When i say everything, i mean everything. Custom radiator, chopped down wiring loom, 2.5 inch exhaust, low km import dual range gearbox, adapter plate, cut xmember, evrything!
no chassis mods involved. Its a pretty strait forward conversion.
cheers
alex
Posted: Mon Mar 16, 2009 9:18 pm
by Mr Top Hat
i had a read through
pretty useful
question
is the ej20t larger than the ej20 in size i mean
Posted: Sat Mar 21, 2009 6:53 pm
by Mr Top Hat
and can you put a bov on a stock EJ20T
Posted: Sun Mar 22, 2009 1:25 am
by El_Freddo
t35345 wrote:is the ej20t larger than the ej20 in size i mean
Same size in capacity but the turbo is lower static compression to the NA EJ20.
t35345 wrote:and can you put a bov on a stock EJ20T
Most likely. I don't know much about these but I'm sure they have some sort of Factory BOV that's plumbed back into the air intake so not to trip out the ECU.
Hope this helps a bit.
Cheers
Bennie
Posted: Sun Mar 22, 2009 11:27 am
by Subafury
this conversion will increse the fun factor on your L series by x100. just take it easy on the gearbox and you'l be fine.
go check out Keffa's car for a first hand look at all the bits u need (for sale too), he can explain it.
Posted: Sun Mar 22, 2009 12:01 pm
by AndrewT
LOL at the BOV question.
You can put shiny pod filters on them too.

Posted: Sun Mar 22, 2009 5:26 pm
by Alex
they have a stock bov which makes a nice psht noise which is well than loud enuf. Otherwise youll need a semi or full plumb back bov.
Posted: Sun Mar 22, 2009 10:23 pm
by Josho
just having a read through here i'm looking at buying a wrx halfcut for my l series as yesterday after having a wee bit too much fun i discovered a hint of oil in the radiator car not over heating but not looking good:( think the ej might be dying,
Posted: Sun Mar 22, 2009 10:26 pm
by El_Freddo
Josho wrote:just having a read through here i'm looking at buying a wrx halfcut for my l series as yesterday after having a wee bit too much fun i discovered a hint of oil in the radiator car not over heating but not looking good:( think the ej might be dying,
EJ or EA?? If you've got the standard 1.8 litre motor in there its an EA and would be worth upgrading to the EJ in most people's opinion...
Cheers
Bennie
Posted: Sun Mar 22, 2009 10:29 pm
by Josho
El_Freddo wrote:EJ or EA?? If you've got the standard 1.8 litre motor in there its an EA and would be worth upgrading to the EJ in most people's opinion...
Cheers
Bennie
already an ej 94 lib motor
Posted: Sat Apr 11, 2009 2:30 pm
by Mr Top Hat
hey again
i was talking to the guy's at work and they reckon that i need at leased a 3" exaust system coz the ej20t is larger or somthing
i hope not coz i just got a 2" catback system last year
Posted: Sun Apr 19, 2009 6:35 pm
by someguy
t35345 wrote:hey again
i was talking to the guy's at work and they reckon that i need at leased a 3" exaust system coz the ej20t is larger or somthing
i hope not coz i just got a 2" catback system last year
AFAIK you will be fine with the 2"
Posted: Sun Apr 19, 2009 8:52 pm
by AndrewT
2" would restrict it slightly as the stock exhaust on an RS is 2.25". At least it is as it comes off the dump pipe. But you will get away with it.
3" is absolute overkill - totally not needed unless you are modifying for big horsepower.
Posted: Mon Apr 27, 2009 11:59 pm
by Mr Top Hat
ok now im totally confused
some people said that the EJ20T/G
just fits right in to a l series
but other people say that you need to do some welding and cutting to the chassis rails
sorry to keep bringing this up but i just want to know that im making the right choice engine wise
thanks
Rob
Posted: Tue Apr 28, 2009 7:49 am
by Outback bloke
2" would restrict it slightly as the stock exhaust on an RS is 2.25". At least it is as it comes off the dump pipe. But you will get away with it.
3" is absolute overkill - totally not needed unless you are modifying for big horsepower.
That is right on the money. A better/newer dump pipe is a good upgrade but you only need to go back as far as the flange on a standard motor.
The EJ20 turbo will fit an L series with out doing any cutting to chassis rails and that is a definite. No confusion about it. You do need the crossmember modded to suit the up pipe though.
Posted: Tue Apr 28, 2009 11:01 am
by AndrewT
Yep. I think some of the confusion might be exactly what needs cutting/welding and exactly what car is being talked about.
EJ20G into L series car;
Chassis rails = No modification required
Engine crossmember = Cut/weld slightly to clear turbo exhaust manifold OR swap for an engine crossmember from a EA82turbo L series (such as Vortex or RX Turbo) but these are abit rare these days.
EJ20G into MY series car;
Chassis rails = Cut/weld to widen slightly to clear the plastic engine timing covers
Engine crossmembers = Cut/weld slightly to clear turbo exhaust manifold OR swap for an engine crossmember from a EA81turbo MY series but these would be near impossible to find.
All this info is in the sticky thread about putting EJ engines into L or MY cars at the top of the Conversions section.
Posted: Tue Apr 28, 2009 4:43 pm
by wagonist
Josho wrote:just having a read through here i'm looking at buying a wrx halfcut for my l series as yesterday after having a wee bit too much fun i discovered a hint of oil in the radiator car not over heating but not looking good:( think the ej might be dying,
I'm about to offload my EJ20T (93 WRX) with cutback loom if you're interested;)