from ej22 to ej25

khanacross · Post by **khanacross** » Mon Jun 28, 2010 8:36 pm

hi guys ,as most will know i have a brumby with a ej22 in it ,,this engine is about stuffed ,,needs rebiuld ,,i have been offered a ej25 for a good price and was wondering if it will be a good option eg; low ks,later model easy to source parts now and in future compared to early ej22 ,,,,my question is can i use my ej22 wiring ,computer and adapter plate and flywheel ? is it a bolt in replacement for the ej22?? thanks heaps ...khanacross

Gannon · Post by **Gannon** » Mon Jun 28, 2010 8:40 pm

Depends on the type of EJ25

Is it a DOHC or a SOHC model.

DOHC models have a similar wiring system to the EJ22, so it might work

The later SOHC models use a completely different wiring system

khanacross · Post by **khanacross** » Mon Jun 28, 2010 8:59 pm

it's a single cam engine ,, dont want a dohc because i dont want to modify the chassis.. .. so by that sounds like the wiring will be different ? thanks

Bogged! · Post by **Bogged!** » Mon Jun 28, 2010 9:27 pm

I am in a similar position and just picked up an EJ25 DOHC motor locally from off eBay for $50, it's not 100% complete but it does have similar wiring to the EJ22, or at least an EJ22 from '95 or so. How learning or adaptable are the 3 plug ECU's fuel wise and could you just bung on the original 22 version? I would think the airflow meter as well as throttle body setup would get it going but well enough to use properly? Interested to know. Thanks.

YouTube · Post by **El_Freddo** » Tue Jun 29, 2010 7:57 pm

So go the whole hog and replace the wiring while you're at it!

You'll love the EJ25! Its almost another step up on the EJ22 from what I remember of driving Venom's L series with EJ25 under the bonnet...

Cheers

Bennie

steptoe · Post by **steptoe** » Tue Jun 29, 2010 10:18 pm

EJ25 DOHC, they have a certain head gasket reputation don't they?

YouTube · Post by **El_Freddo** » Wed Jun 30, 2010 5:44 pm

steptoe wrote:EJ25 DOHC, they have a certain head gasket reputation don't they?

Only if the factory gasket hasn't been changed, and only from 2000 up till 2002 from memory... I'm not 100% sure on that but I'm maybe 90% on that. You'd know wouldn't you Gannon?

Cheers

Bennie

Post by **Alex** » Wed Jun 30, 2010 5:53 pm

it was the early gen2 lib ej25s that had the issue(and the outbacks of the same age) from about 95-99

the problem was fixed from about 99 onwards.

they usually blow a HG at about 100k

alex