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Old 04-07-2006, 09:24 PM   #1
affinity1
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Default Can i put an STi engine into my 03 wrx?

i have an 03 wrx and i was thinking how much of a sleeper it would be if i could put a newer STi motor in my car. Would i have to swap transmissions as well? How much money would the swap cost (engine and trans)?

Also, can someone tell me the names of the diferent engines in subarus? Like ls1, ls2, l67, lt1 for GM but for Subaru?

thanks
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Last edited by affinity1; 04-07-2006 at 09:31 PM.
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Old 04-07-2006, 09:28 PM   #2
trbo-4
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A cheaper alternative would be to just swap the block for a STI 2.5 liter.
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Old 04-07-2006, 09:31 PM   #3
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Yes you can put an STI engine in an 03 wrx without swapping the transmission. Your power will be limited though because the wrx tranny can support only around 300 hp. I would recommend doing kaaz gears. The swap cost would depend on whether you were going to keep the stock wrx cams and heads or go with the sti cams which have avcs subarus version of variable timing. It also would depend on where you got the motor and whether it was new or used of course. Finally the subaru family of motors are ej. The 2.0l are ej207 for the jdm, I am not so sure of the usdm wrx and ej257 for the sti. the 20 and 25 state the displacement.
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Old 04-07-2006, 09:34 PM   #4
affinity1
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cant i just pull my motor and put in an STi motor? will that motor mate up to my 03 manual trans?

what is the 2jz motor?

also, the guy above said something about the block, does that refer to the entire motor?


edit: motor motor motor
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Old 04-07-2006, 09:36 PM   #5
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Quote:
Originally Posted by affinity1
i have an 03 wrx and i was thinking how much of a sleeper it would be if i could put a newer STi motor in my car. Would i have to swap transmissions as well? How much money would the swap cost (engine and trans)?

Also, can someone tell me the names of the diferent engines in subarus? Like ls1, ls2, l67, lt1 for GM but for Subaru?

thanks
a wrx with a wrx sti engine does not equal a sleeper !
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Old 04-07-2006, 09:38 PM   #6
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Old 04-07-2006, 09:48 PM   #7
CatfaceType-R
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2jzgte or whatever is the toyota supra engine...


if you wana reserach this more..use the search button...a lot of people have done swaps..it is a long and tideous process unless someone else(a shop or skilled mechanic who knows jap wiring) is doing the job... it is also a pretty expensive project

u have to decide how much you want to swap out of your wrx to make it have what the usdm STi has
use the search button..search for usdm STi swap into wrx/bugeye/02-03 whatever..plenty of info on this on the board
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Old 04-07-2006, 09:49 PM   #8
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nice find....thanks!
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Old 04-07-2006, 09:52 PM   #9
CatfaceType-R
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i don't know much about swapping, but there have been a lot of thread on here lately...the worst part is wiring..the new engine just drops right in on the same mounts
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Old 04-07-2006, 09:53 PM   #10
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2JZ FTW..
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Old 04-07-2006, 10:21 PM   #11
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from what ive read so far it looks like not many people have swapped an STi engine into their wrx but the engine would match up just fine. its just a big wiring hassle?

dollar for dollar would i be better off just modifying my wrx?
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Old 04-07-2006, 10:24 PM   #12
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dollar for dollar youd be better getting a v7.
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Old 04-07-2006, 10:25 PM   #13
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Just buy an STi and put a wrx wing on it and paint your brembo's red.

Or better yet, buy an STi, get a front mount, and put a 2.5 rs hood and trunk on it.

-Chance
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Old 04-07-2006, 10:39 PM   #14
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Quote:
Originally Posted by wrxblubayou
dollar for dollar youd be better getting a v7.
que? what is a v7?
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Old 04-07-2006, 10:40 PM   #15
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Quote:
Originally Posted by Evol
Just buy an STi and put a wrx wing on it and paint your brembo's red.

Or better yet, buy an STi, get a front mount, and put a 2.5 rs hood and trunk on it.

-Chance
if i could afford an Sti, i would have one
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Old 04-07-2006, 10:45 PM   #16
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do a built internals on the 2.0...upgrade the gears, then put a ball-bearing turbo on it, and get a good dyno tune. Money well spent...
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Old 04-07-2006, 10:47 PM   #17
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Quote:
Originally Posted by affinity1
que? what is a v7?

sorry.... jdm 2.0L sti engine
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Old 04-07-2006, 10:50 PM   #18
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Quote:
Originally Posted by affinity1
if i could afford an Sti, i would have one
If you couldn't afford to purchase an STI, you really cant afford to assemble an STI.
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Old 04-07-2006, 10:51 PM   #19
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Quote:
Originally Posted by LastResort
If you couldn't afford to purchase an STI, you really cant afford to assemble an STI.

not necessarily....
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Old 04-07-2006, 10:59 PM   #20
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Quote:
Originally Posted by affinity1
Can i put an STi engine into my 03 wrx?

Why not build a better car and drop it into a Marauder?
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Old 04-07-2006, 11:02 PM   #21
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The cost difference between the two initially would probably easily pay for the swap.
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Old 04-07-2006, 11:04 PM   #22
affinity1
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Quote:
Originally Posted by dj_booduh
The cost difference between the two initially would probably easily pay for the swap.
im sorry, what are you saying?


ps. i love marauders. ls2/ls7 marauder would be sick
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Old 04-07-2006, 11:10 PM   #23
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wait gie yourself a break and do some more readings in this website..i think within a month you'll learn something..about subaru's
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Old 04-07-2006, 11:14 PM   #24
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Quote:
Originally Posted by affinity1
im sorry, what are you saying?


ps. i love marauders. ls2/ls7 marauder would be sick

post a thread about the marauder in the OT. they love them also. good advice down there.
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Old 04-07-2006, 11:16 PM   #25
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Quote:
Originally Posted by veightkiller
wait gie yourself a break and do some more readings in this website..i think within a month you'll learn something..about subaru's
yeah, i came from a grand prix gtp (L67). when i came into that community (www.clubgp.com) it was fairly small and only a few key people were starting to make go fast mods for the L67. i spent 3 years learning about the GTP and basically following the come up of the L67 aftermarket. im having a really tough time learning about the wrx because the community has soooo many members and there seems to be sooooo much to learn about the impreza. searching has its limits because there are sooooo many topics and its hard to find exactly what i need but im trying
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