I'd reccomend everyone does the 22e/dohc combo, yields perfect cr yet 22e bottom ends and 25d heads are fairly common. Also performs better then single cam and also allows you to save the legendary closed deck bottom end our cars came with.
Only slight mods need to be done for turbo coolant and oil.. I'd build aother one in a heart beat.
im also boosting a n/a 2.2 block, i used sohc 2.5 heads though since i had a few sets. i drive it HARD and in 3 years its never given me a issue. get a robtune ecu, that will wake it up even more!
94 Supra Turbo 6 speed. build in progress
98 Lexus GS300, single turbo 2JZGTE swap. daily driver
93 Impreza wagon, home brewed n/a-t ken block themed winter drift missle
*sold*
94 Alpine Sport Wagon... STi conversion, rotated turbo etc
legsportwag wrote:I had a post on here but it was long ago, idk were it is so here is a new one.
Specs:
1992 touring wagon
5mt swap (01 foz trans 4.11)
Tdo4
Wrx tmic
3in turbo back
Ej22e block
Ej25d heads (clover heads)
Megan racing coils
Some random uni lug 17's
Stock ej22t ecu
FCD
Wrx 11.4" front brakes
Runs 15psi all day and loves it
What HG?
How did U run the oil and specifically the coolant?
I know the DOHC heads have an oil supply and not too tough to run the oil drain back into the valve cover, but a good coolant source/return isn't as clear.
Thanks
Last edited by wtdash on Mon Feb 24, 2014 6:06 am, edited 1 time in total.
Turbo Subies:
'87 GL-10 Turbo - SOLD
'90 BJ EJ22T/DOHC & 5speed swap - SOLD
'04 FXT, Forged internals, VF39, STI TMIC, Cobb AP- SOLD
'93 Legacy SS - 5-speed, SOLD :-(
'02 WRX -SOLD
'96 BD-turbo'd-SOLD
'98 SF - NA-T
MikeyMeyagi wrote:theres a thread somewhere that gives step by step instructions on tapping the dohc heads for coolant. its really easy
Yeah - I followed THIS THREAD(pg. 3)...I had it done on my '90 T-wagon...by a local Subie shop....and it leaked. So, wanted to hear about other options.
Thanks
Turbo Subies:
'87 GL-10 Turbo - SOLD
'90 BJ EJ22T/DOHC & 5speed swap - SOLD
'04 FXT, Forged internals, VF39, STI TMIC, Cobb AP- SOLD
'93 Legacy SS - 5-speed, SOLD :-(
'02 WRX -SOLD
'96 BD-turbo'd-SOLD
'98 SF - NA-T
I just came across an old post of yours (last year) ....didn't you used to have an EJ257 under those heads? And did you ever figure out your idle issue running that combo?
Turbo Subies:
'87 GL-10 Turbo - SOLD
'90 BJ EJ22T/DOHC & 5speed swap - SOLD
'04 FXT, Forged internals, VF39, STI TMIC, Cobb AP- SOLD
'93 Legacy SS - 5-speed, SOLD :-(
'02 WRX -SOLD
'96 BD-turbo'd-SOLD
'98 SF - NA-T
Yep had a 257 under a different set of 25d heads. Not the best compression ratio though (9.3:1). Was spunky but that motor let go before I figured out the idle issue. Ended up being an issue in the engine harness but long since cured.
New engine combo (97 22e block, 97 25d heads) yeilds a much safer compression ratio (8.5:1) also the stock ecu compensates much better with stock engine cc's