Engine/Power - non turbo (All non turbo Imprezas) Who needs a turbo when you have 2500cc? Cams, intakes, exhausts, etc. The 2.2L and 1.8L Subies are cool too.

2.5 DOHC engine swap Q's

Thread Tools
 
Search this Thread
 
Old Apr 20, 2003 | 10:21 AM
  #2  
Kevin M's Avatar
Registered User
iTrader: (12)
 
Joined: Nov 2002
Posts: 18,369
From: Reno, NV
Car Info: 1993/2000/2001 GF4 mostly red
finding a used DOHC shouldn't be impossible compared to getting a later engine. Keep trying that first, since I doubt you can save enough on a SOHC to pay for the harness.
Old Apr 26, 2003 | 10:52 AM
  #5  
Kevin M's Avatar
Registered User
iTrader: (12)
 
Joined: Nov 2002
Posts: 18,369
From: Reno, NV
Car Info: 1993/2000/2001 GF4 mostly red
I think I'd go that route too. It may or may not be as cheap as a straight swap, but even building it with good forged components won't be too awful, plus you can do some stuff like get better head gaskets, O-ring them, heck, even bore it out a little. At least it would give you the chance to start planning out how and what you do with it.
Old May 10, 2003 | 08:55 AM
  #6  
Roo's Avatar
Roo
Forester Specialist
iTrader: (3)
 
Joined: Jan 2003
Posts: 3,985
From: Sonoma County
Car Info: '98/'04 Foresters (S & XT)
Re: 2.5 DOHC engine swap Q's

Originally posted by open_bar
Allo All,
I have a 98 RS with a blown 2.5 DOHC that needs replacing.
Is it the infamous blown head gaskets? Hole in the block? hole in the oil pan? What happened?

I think you need to let us know what happened before you can get straight advice, especially if you're on a budget.

I had my head gaskets blow, and I thought I was looking at a new engine. I had a competent and honest mechanic do a head gasket job, and top end rebuild (blueprinted heads), and it runs great!!
Old May 10, 2003 | 07:57 PM
  #7  
Kevin M's Avatar
Registered User
iTrader: (12)
 
Joined: Nov 2002
Posts: 18,369
From: Reno, NV
Car Info: 1993/2000/2001 GF4 mostly red
It's never a bad idea to get a mechanic to add a pinch of this and a dash of that to the recipe when he's already got it torn apart.
Old May 21, 2003 | 07:25 PM
  #8  
goingsti's Avatar
Registered User
 
Joined: May 2003
Posts: 92
From: Mesa, Arizona
Car Info: 2000 2.5 rs coupe
yes its best to due a rebuild, I have checked up on an engine swap on the 2.5 RS , it was going to cost almost 1300 in just the wiring alone(total of 18 hours) So I would definetly stick with a rebuild or unless you can come up with lot of cash.
Old May 27, 2003 | 08:50 PM
  #10  
Kevin M's Avatar
Registered User
iTrader: (12)
 
Joined: Nov 2002
Posts: 18,369
From: Reno, NV
Car Info: 1993/2000/2001 GF4 mostly red
Yes, you can swap the new STi drivetrain into any Impreza, and probably a Legacy too, bt it's not simple. Should not require any fabrication though, just a lot of part swapping (and money!).
Old May 29, 2003 | 02:17 PM
  #11  
Pocon's Avatar
Registered User
 
Joined: Nov 2002
Posts: 27
From: Toronto, Ontario, Canada
Car Info: 1999 Impreza 2.5 RS - MTS
why not get a WRX engine in your GC8?
Old May 29, 2003 | 04:24 PM
  #12  
Kevin M's Avatar
Registered User
iTrader: (12)
 
Joined: Nov 2002
Posts: 18,369
From: Reno, NV
Car Info: 1993/2000/2001 GF4 mostly red
Originally posted by Pocon
why not get a WRX engine in your GC8?
It's a lot more complicted than just pulling the EJ25 and dropping in the EJ20T, or a lot more would be done. The wiring harness alone takes a good shop 20+ hours of labor. Also, it's beyond his budget I think.

And it's a GC6 with the stock motor. Putting an EJ20T in it would make it a GC8. See the last page or 2 of the FAQ.
Old May 29, 2003 | 06:32 PM
  #14  
Kevin M's Avatar
Registered User
iTrader: (12)
 
Joined: Nov 2002
Posts: 18,369
From: Reno, NV
Car Info: 1993/2000/2001 GF4 mostly red
Originally posted by need4gforce
I dont like the idea of a 2.0 in my heavy awd car.. if 2.5 turbo is possible thats way better... And im mechanic so ill be doin everything myself... If the dash can be converted over ill be doin that too... im goin all out...
The EJ207 in the STi RA made about 320 horsepower. There's more to the story than displacement. EJ25s making 320 horsepower don't live very long, though they kickass up until then!
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
PacificLegacy
Hawaii
5
Aug 26, 2014 09:54 PM
pRiMe DiReCtIvE
Subaru General
0
Dec 22, 2011 10:59 AM
gillz
Subaru General
6
Aug 21, 2011 10:21 PM
annointed
Subaru OEM Parts For Sale
7
Jul 21, 2005 02:32 PM
sub-sonic
Hawaii
10
Dec 14, 2002 10:17 AM




All times are GMT -7. The time now is 08:28 AM.