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G'day all

A bit of info gathering for a possible future project:

Would an EJ22 still be better than a late model EJ20 for offroading?

I realise that the EJ22 is a dime a dozen at the moment and therefore parts are easy to find at pick a part wreckers. They can be rather long in the tooth depending on their milage.

The later model EJ20 would be harder to source and cost more, but would have less milage, younger so to speak and possibly match the performance of the EJ22 anyway.

I'm also thinking that a supercharger application on the EJ20 would be as easy as one on the EJ22 like Subarino has done with Hatchie.

Has anyone got any experience between the EJ22 from the gen1's or gen2's and a later model EJ20 (2000 onwards)?

I'm also guessing that factory immobilisers can be fun to cut out of the loom and still have the loom do what its meant to. I'd be looking at doing the wiring myself.

Cheers

Bennie

I haven't driven a 2.0 but if there's a differenc ein drive (which there is) between the 2.2 and the 2.5 then I would imagine it would be different. If you're going to go down the route of a 2.0 and supercharge it, why not just get a rex half cut and be done with it? Depending on the age of the project car (in vic any replacement engine must be newer than the vehicle), for the cost of the supercharger kit you could do a lot in terms of setting up a turbo. Version 2 sti half cuts are going for as little as 2.5k, v3 for about 4k. What's the build with a supercharger worth? 7k?

As for age, I suppose any engine with less ks is gonna be a good thing, especially if you're looking at an early lib ej22 vs a newer impreza ej20.

You considering that impreza idea you had kicking around in your head a while ago?

having had an EJ20 in the brumby and now an EJ22, I can say that the EJ20 revs harder but the EJ20 has more low down torque

both are single cam

both are great engines

TOONGA

Another thing on the top, Impreza or Liberty behind EJ20 has either 3.9 or 4.11 diff, none has 3.7 which is different ratios to provide power output. I still reckon that EJ22 is better off. I thought you sourced low km EJ22?
Cheers
AP

TOONGA wrote:having had an EJ20 in the brumby and now an EJ22, I can say that the EJ20 revs harder but the EJ20 has more low down torque

both are single cam

both are great engines

TOONGA

I'm guessing you meant EJ22 has more low down torque

Bennie.. I've driven both EJ20 early and EA20 late engines and would still go a EJ22 (or better still an EJ25 SOHC). If you're thinking of putting some sort of forced induction then I'd recommend you use thinker head gaskets so you don't get pre-detonation

Cheers,
Paul

According to Redboook. Thats why i want the Single cam EJ25


Gen1 Liberty:
Power 100kW @ 6000rpm
Torque 189Nm @ 4800-4800rpm

Gen2 Liberty:
Power 94kW @ 5200rpm
Torque 190Nm @ 4400-4400rpm

Gen3 Liberty:
Power 92kW @ 5600rpm
Torque 184Nm @ 3600-3600rpm

2003 RS Impreza, Forester Single:
Power 112kW @ 5600rpm
Torque 223Nm @ 3600-3600rpm


Or look at http://en.wikipedia.org/wiki/Subaru_EJ_engine#EJ20

Hummmmm, looks like i'll be looking to get a EJ253:)

RSR 555 wrote:I'm guessing you meant EJ22 has more low down torque

Bennie.. I've driven both EJ20 early and EA20 late engines and would still go a EJ22 (or better still an EJ25 SOHC). If you're thinking of putting some sort of forced induction then I'd recommend you use thinker head gaskets so you don't get pre-detonation

Cheers,
Paul

Yep I did

the EJ22 has more low down grunt is what I meant to say

EA20? a stroked EA53 or "NA overhead valve EJ20"

thinker head gaskets? Cosworths little known Chinese partner

sorry couldnt resist

TOONGA

EJ22 would surely be an affordable approach if they are 25c to the dozen and freshen one up yourself then you have a better idea of its reliability. If you went supercharged like Subarinos, are they switch on , switch off so if you don't want or need it you leave off?
EJ22 has similar torque to the EA82T and would surely be enough without the supercharger and less components to clean muddy water out of in future

TOONGA wrote:Yep I did

the EJ22 has more low down grunt is what I meant to say

EA20? a stroked EA53 or "NA overhead valve EJ20"

thinker head gaskets? Cosworths little known Chinese partner

sorry couldnt resist

TOONGA

Go for it.. I see your whit is up early too

You not seen the EA20?? must show you one but yes you know I meant EJ20 (late)

from my experience the early EJ22 has the best low down grunt but the downside is fuel economy. The gen2 EJ22 is WAY more fuel efficient that Gen1. The later EJ20's are even better, but you are compromising on low down torque.

Another thing on the top, Impreza or Liberty behind EJ20 has either 3.9 or 4.11 diff, none has 3.7 which is different ratios to provide power output.

what the?

my ej20 awd gen3 2002 liberty is neck and neck with my sisters fwd ej22 92 gen1 lib,

booting it at 100 plus my ej20 takes off harder(possibly due to ratios)

taking into account my liberty is awd and a fair chunk heavier my sisters liberty(leather, all electrics etc) id take an ej20 if you can find one.

the power numbers arent impressive i know, but this motor isnt a slug as most uneducated knobs think(it isnt a rocket either) It still hammers considering its a n/a 2.0l 4 cylinder.....oh and the best part is, im averaging 8.2l/100km at the moment. This is with abit of had driving also.

I'll let you all know how the ej20 goes in an L in a couple of weeks when i do the conversion. the motor is from a 2001 impreza and i'm not running power steering or aircon so there may be a few more "horsepowers" to be had without those.

ScubyRoo wrote:Version 2 sti half cuts are going for as little as 2.5k, v3 for about 4k. What's the build with a supercharger worth? 7k?

7k if you're getting someone to build and install the system for you I'd imagine. A raptor kit is somewhere near 4k, bolt on DIY with everything you need. I don't have 4k but reckon I should be able to work something out like Subarino's done with his hatchie.

ScubyRoo wrote:You considering that impreza idea you had kicking around in your head a while ago?

Nope, something for touring with some extra punch

AlpineRaven wrote:Another thing on the top, Impreza or Liberty behind EJ20 has either 3.9 or 4.11 diff, none has 3.7 which is different ratios to provide power output. I still reckon that EJ22 is better off. I thought you sourced low km EJ22?

Yeah mate I got a low km EJ22 - it had 127k on the clock when I pulled it from pick a part, it had a dead clutch...

RSR 555 wrote:Bennie.. I've driven both EJ20 early and EA20 late engines and would still go a EJ22 (or better still an EJ25 SOHC). If you're thinking of putting some sort of forced induction then I'd recommend you use thinker head gaskets so you don't get pre-detonation

Thanks paul - I'm basically looking at trying my feet in subarino's boots in terms of what he did with hatchie and this setup. I thought he used standard head gaskets after he rebuilt the engine, but I could be wrong. Where would be the best place to source thicker head gaskets?

vincentvega wrote:from my experience the early EJ22 has the best low down grunt but the downside is fuel economy. The gen2 EJ22 is WAY more fuel efficient that Gen1. The later EJ20's are even better, but you are compromising on low down torque.

And this little bit of info contains one word that I like the sound of - Economy. I've found it hard to crack 10L/100km in Ruby Scoo with general driving around. A long trip will bring it down to about 9L/100km. I honestly thought it would do better than that. Sacrificing a bit of power and/or torque for better economy is something I can live with - particularly since I'm looking at the added benefit of the on/off supercharger setup.

Time will tell if this heads in the direction I'm planning it to...

Cheers

Bennie