legacy engine swap - TriStateTuners.com :: Home of Tristate Auto Enthusiast

Burd_dog · 05-08-2008, 01:02 PM

I have a 2000 Legacy GT and wanted to swap out the stock engine with an STI EJ25...how much work am i looking at? would it mount up to my automatic trany? im just getting into imports i was a domestics guy and i dont know all that much yet about subaru's...any input would help! thanks!

Plastik Racer · 05-08-2008, 02:47 PM

subaru's mostly have the same style engine so a sti engine will fall right into place. The wiring is a different story needs to be wired and such. But I know the vendor on here does swaps on subaru's (area 1320) they should chime in and give you more detail. As for the tranny yea it'll mate up to an auto but it just wouldn't be as fun ^_^..

RyanG · 05-08-2008, 03:56 PM

^^ said it perfect

Yes the engine will fit.Not without modifications however. You would need the turbo crossmember however and turbo swaybar.

the a/t trans will work, but it will not be able to take the power. Here is the kicker. You wont be able to run the STi stuff on an auto car without some serious ECU trickery.. Since the STi never came auto, your trans computer will get pissed off at not seeing an ECU to talk to.

Sooooooo... count an STi swap out unless you want to go M/T

An auto WRX swap would be much more feasable being they came in auto.

Burd_dog · 05-08-2008, 10:25 PM

thanks...you guys are a huge help! what would you recommend for my legacy? im on a pretty tight budget and its bone stock right now i reeaally want to put some power in it...i saw that i can get an EJ25 engine pretty cheap(3k,4k) but now thats out i guess...would it be worth dropping in the wrx engine?

RyanG · 05-09-2008, 01:00 AM

on a tight budget I would suggest the following

1- Header
2- exhaust
3- crank pulley
4- cams
5- intake
6- nitrous

Snoozie · 05-09-2008, 12:42 PM

sl-i.net would be a good place to start.

http://www.sl-i.net/FORUM/viewforum.php?f=31

Burd_dog · 05-09-2008, 10:53 PM

this site is really helpful thanks! you guys are awesome! glad im getting help getting into imports and not just feelin around in the dark lol

05-08-2008, 01:02 PM	#1
Burd_dog Noob-Jersey Join Date: May 2008 Location: south jersey Member #7722 My Ride: 2000 Subaru Legacy GT iTrader: (0)	legacy engine swap I have a 2000 Legacy GT and wanted to swap out the stock engine with an STI EJ25...how much work am i looking at? would it mount up to my automatic trany? im just getting into imports i was a domestics guy and i dont know all that much yet about subaru's...any input would help! thanks!

05-08-2008, 02:47 PM	#2
Plastik Racer Tri-State Addict Join Date: May 2006 Location: South Jerzey Member #1981 My Ride: 99 Subaru Impreza, 03 Subie legacy DD iTrader: (2)	subaru's mostly have the same style engine so a sti engine will fall right into place. The wiring is a different story needs to be wired and such. But I know the vendor on here does swaps on subaru's (area 1320) they should chime in and give you more detail. As for the tranny yea it'll mate up to an auto but it just wouldn't be as fun ^_^.. __________________ *To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.* *To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.*

05-08-2008, 03:56 PM	#3
RyanG Tri-State Post Whore Join Date: Jan 2005 Location: Easton, PA Member #63 iTrader: (1)	^^ said it perfect Yes the engine will fit.Not without modifications however. You would need the turbo crossmember however and turbo swaybar. the a/t trans will work, but it will not be able to take the power. Here is the kicker. You wont be able to run the STi stuff on an auto car without some serious ECU trickery.. Since the STi never came auto, your trans computer will get pissed off at not seeing an ECU to talk to. Sooooooo... count an STi swap out unless you want to go M/T An auto WRX swap would be much more feasable being they came in auto. __________________ I am Area1320 To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. Last edited by RyanG; 05-08-2008 at 04:01 PM.

05-08-2008, 10:25 PM	#4
Burd_dog Noob-Jersey Join Date: May 2008 Location: south jersey Member #7722 My Ride: 2000 Subaru Legacy GT iTrader: (0)	thnks thanks...you guys are a huge help! what would you recommend for my legacy? im on a pretty tight budget and its bone stock right now i reeaally want to put some power in it...i saw that i can get an EJ25 engine pretty cheap(3k,4k) but now thats out i guess...would it be worth dropping in the wrx engine?

05-09-2008, 01:00 AM	#5
RyanG Tri-State Post Whore Join Date: Jan 2005 Location: Easton, PA Member #63 iTrader: (1)	on a tight budget I would suggest the following 1- Header 2- exhaust 3- crank pulley 4- cams 5- intake 6- nitrous __________________ I am Area1320 To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

05-09-2008, 12:42 PM	#6
Snoozie Tri-State Post Whore Join Date: May 2006 Member #1887 iTrader: (0)	sl-i.net would be a good place to start. http://www.sl-i.net/FORUM/viewforum.php?f=31 __________________ Ya take 'em off. "Everyone learns faster on fire." - Alkaline Trio

05-09-2008, 10:53 PM	#7
Burd_dog Noob-Jersey Join Date: May 2008 Location: south jersey Member #7722 My Ride: 2000 Subaru Legacy GT iTrader: (0)	this site is really helpful thanks! you guys are awesome! glad im getting help getting into imports and not just feelin around in the dark lol

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