N/A Frankenmotor

Heads, valves, pistons, rods, crankshaft, etc...

Moderators: Helpinators, Moderators

Post Reply
Danny-G
Fourth Gear
Posts: 1134
Joined: Thu Apr 15, 2010 9:22 pm
Location: Port Angeles, Washington

N/A Frankenmotor

Post by Danny-G »

I did a search and it seems the N/A frankenmotor is an ej25 block with ej22 heads. Is this correct? And does anyone have any idea of how much power one would make? I might attempt this if its not too pricey. Another question, would it be better to get the block then pull the motor out of my car to swap blocks or just get the block and heads and assemble out of the car then do the swap for less down time? I can get both the block and heads from local junkyards so I'm just wondering whats advised.
Danny
biggreen96 wrote:well get out there and smash that geo around and get comfy.
1993 Legacy LS Awd: lifted, 4eat, higher mileage, and dirty.
1994 Legacy Turbo wagon: rwd, 4eat, and a faint knock..
1992 Legacy postal: bone stock, 4eat, blown reverse.
kimokalihi
Fifth Gear
Posts: 8360
Joined: Mon Nov 06, 2006 3:41 am
Location: Tenino, WA

Re: N/A Frankenmotor

Post by kimokalihi »

I'd guess 160chp?
98 Metro Hatch Daily Driver :)
91 SS EJ20G Engine/Tranny/Diff Swap Build Thread Here
"Your testes are close to your bottom but you still play with them all the time." Jeremy Clarkson
wtdash
Fifth Gear
Posts: 2349
Joined: Fri May 04, 2007 4:09 pm
Location: N. ID

Re: N/A Frankenmotor

Post by wtdash »

Did you read thru THIS on Nasioc?

I'd strongly recommend buying the parts and putting it together b4 touching your car...wouldn't mess w/your running motor 'just in case'.

Edit: From HERE- I also measured the thickness of the MLS HG I used, and it was 1.51mm, just like I thought. So I have the 10.8:1 CR frankenstein motor. So if you use the phase I EJ25 block, and the phase I EJ22 heads (dual port) you get 10.8:1 CR.



GL,
Td
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
Danny-G
Fourth Gear
Posts: 1134
Joined: Thu Apr 15, 2010 9:22 pm
Location: Port Angeles, Washington

Re: N/A Frankenmotor

Post by Danny-G »

wtdash wrote:.....I'd strongly recommend buying the parts and putting it together b4 touching your car...wouldn't mess w/your running motor 'just in case'.
Thats what I was thinking would be best cause you never know what can happen with motor builds, and I did take a look at the two links you posted and it seems like building this will be pretty simple if I have everything needed before I start.
Danny
biggreen96 wrote:well get out there and smash that geo around and get comfy.
1993 Legacy LS Awd: lifted, 4eat, higher mileage, and dirty.
1994 Legacy Turbo wagon: rwd, 4eat, and a faint knock..
1992 Legacy postal: bone stock, 4eat, blown reverse.
BallinSubie
In Neutral
Posts: 10
Joined: Fri Oct 29, 2010 7:39 am

Re: N/A Frankenmotor

Post by BallinSubie »

I have a 92 legacy wagon with a 98 legacy ej25 w/ 92 ej22 heads. The thing runs great, although it really does not have much power... I bought it like that. I have really nice torque. First gear hauls ass. But i get to second and my power is gone.. there's pretty much no pull whatsoever.
Danny-G
Fourth Gear
Posts: 1134
Joined: Thu Apr 15, 2010 9:22 pm
Location: Port Angeles, Washington

Re: N/A Frankenmotor

Post by Danny-G »

BallinSubie, is your wagon stick or auto? And do you have any idea what the highway mileage is? And, finally how does it pull around 50-60?
Danny
biggreen96 wrote:well get out there and smash that geo around and get comfy.
1993 Legacy LS Awd: lifted, 4eat, higher mileage, and dirty.
1994 Legacy Turbo wagon: rwd, 4eat, and a faint knock..
1992 Legacy postal: bone stock, 4eat, blown reverse.
Post Reply