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Old 05-20-2004, 12:13 AM   #1
Siper2
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Impreza GC8 Any Forester XT engines in GC 2.5RS cars, yet?

Just wondering.

As much as I'd love to keep my car N/A for kicks, I think I'll eventually do either a legitimate XT swapover, or piecemeal it together to be basically an XT engine.

Sure going full-bore 2.5-T STi would be more satisfying (duh ), but a lot more expensive I bet. Besides, I'm sure a few simple upgrades to an XT engine would put it nicely between stock power and the 300hp the STi makes. (Exhaust/intake, maybe a larger intercooler for efficiency...)

If anybody's done one, I'd love some pics!

-S2-

ps - How about the famed effort to squash an H-6 in there? Anyone been successful? I'll try a couple searches if I really get bored, but I thought I'd tack that on there.
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Old 05-20-2004, 02:00 AM   #2
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I-speed or LIC was working on a XT swap, havent heard anything about it though.

Personally a XT swap with a twin stroll turbo setup sounds fun to me

And yes, the H6 thing has been done: http://forums.nasioc.com/forums/show...highlight=ez30
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Old 05-20-2004, 12:14 PM   #3
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if i coudl find one i would do it ... i am ready for engine #3
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Old 05-20-2004, 12:25 PM   #4
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I dont see why someone would... the heads arent that great. A wrx heads with 2.5 cams/ej257 short block would be much easyer and all you would be missing is avcs. If you want that get a set of jdm heads with better cams and larger ports...
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Old 05-20-2004, 03:09 PM   #5
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How many people are out there totaling their FXT'? Not too many, its ganna be hard to find one. there are way more people pushing their sti' (and crashing them).

but the fxt would be a very nice motor. semi-closed is perfect for me; stronger than a 2.5rs or 2.0 wrx motor, but not heavy like a 2.2 closed deck.
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Old 05-20-2004, 03:54 PM   #6
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Quote:
Originally posted by RS_to_WRX_swap
How many people are out there totaling their FXT'? Not too many, its ganna be hard to find one. there are way more people pushing their sti' (and crashing them).

but the fxt would be a very nice motor. semi-closed is perfect for me; stronger than a 2.5rs or 2.0 wrx motor, but not heavy like a 2.2 closed deck.
your right but there putting the 2.5 turbo in alot more models now
so there will be alot more out there to get wrecked
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Old 05-20-2004, 04:52 PM   #7
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Quote:
Originally posted by RS_to_WRX_swap


but the fxt would be a very nice motor. semi-closed is perfect for me; stronger than a 2.5rs or 2.0 wrx motor, but not heavy like a 2.2 closed deck.


They weight difference is very small... and the ej22 is a much better block then the ej255/57. But the heads on the old ej22s suck so I can see why using the ej255/57 heads from the xt/baja/legacy/sti would be better. The new ecu and electronics would make things a pain...

Last edited by totoherbs; 05-20-2004 at 05:40 PM.
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Old 05-20-2004, 05:31 PM   #8
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Did someone need an XT motor!? I know we have one in the garage that needs a home
There is no turbo, no IC and no up pipe. The rest of the motor is complete.
Feel free to PM or email me for details.

Chris
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Old 05-20-2004, 05:35 PM   #9
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Had I the cash, I-Speed, I'd think about it. But not yet.

Seems like the inter-EJ animosity continues. Everyone still seems to disagree about which heads/blocks/whatever to use if you're mix-and-matching. Life's never dull for the armchair engine builder.
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Old 05-20-2004, 05:39 PM   #10
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Quote:
Originally posted by Kostamojen


And yes, the H6 thing has been done: http://forums.nasioc.com/forums/show...highlight=ez30
I checked out Linaracing.com and that's a pretty neat swap!!
Seems odd to use such an old Impreza for the job, but then again, it weighs next to nothing and is an inexpensive starting point, so.... why not?
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Old 05-20-2004, 06:01 PM   #11
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Odd? Its the lightest impreza you can get, I wouldnt do a swap in anything else
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Old 05-20-2004, 06:02 PM   #12
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Quote:
Originally posted by I-Speed USA
Did someone need an XT motor!? I know we have one in the garage that needs a home
There is no turbo, no IC and no up pipe. The rest of the motor is complete.
Feel free to PM or email me for details.

Chris
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$1
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Old 05-20-2004, 06:06 PM   #13
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Quote:
Originally posted by Kostamojen
Odd? Its the lightest impreza you can get, I wouldnt do a swap in anything else
Only because it's a new engine in a car that looks sooo old.

But I agree on the weight, which is why I put in my disclaimer.
Besides, V5/6 bodywork slaps on easily enough.
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Old 05-20-2004, 06:49 PM   #14
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Quote:
Originally posted by totoherbs


They weight difference is very small... and the ej22 is a much better block then the ej255/57. But the heads on the old ej22s suck so I can see why using the ej255/57 heads from the xt/baja/legacy/sti would be better. The new ecu and electronics would make things a pain...
2.2's are sweet motors, donít get me wrong. I just donít have the $ to take on such a large project. I like the idea of factory reliability.

On another note, for the FXT motor drive by wire, is it easier to swap the pedles over from the forester. or use a wrx(?) throttle/ecu?
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Old 05-20-2004, 07:11 PM   #15
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The wrx parts, but you couldnt use a wrx ecu if you wanted avcs to run... You would need a reflashed ver 7... I guess??


http://forums.nasioc.com/forums/show...hreadid=523486
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Old 05-20-2004, 08:03 PM   #16
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I-speed,

You have PM.

-Erik
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Old 05-20-2004, 08:16 PM   #17
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A V8 USDM STi into a GC was recently completed in SLC. The owner is keeping it under pretty tight wraps right now, but expect to see it in a few mags in the near future, and then of course all kinds of details will come out. They did the complete driveline, Brembos and all. They are still working out a few bugs. but it has been done...
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Old 05-21-2004, 03:02 AM   #18
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Quote:
Originally posted by Matt Monson
A V8 USDM STi into a GC was recently completed in SLC. The owner is keeping it under pretty tight wraps right now, but expect to see it in a few mags in the near future, and then of course all kinds of details will come out. They did the complete driveline, Brembos and all. They are still working out a few bugs. but it has been done...

drool thats my dream car
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Old 05-21-2004, 08:54 AM   #19
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Well I think the US STi is every GC guy's dream swap, but that's a pretty pricey one!

I'd love to see that car, though!!! If I had that money, I'd also get a new paint job, definitely new/better I/H/E, and go with Prodrive 17" GC-series wheels. (18"s are a nice upgrade for '04+ STi cars, but I think they look too big on GCs.) Probably try to see if I could widebody my car, too. Sort of 22B-style, even though it's a four-door.

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Old 05-21-2004, 10:29 AM   #20
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Quote:
Originally posted by totoherbs


They weight difference is very small... and the ej22 is a much better block then the ej255/57. But the heads on the old ej22s suck so I can see why using the ej255/57 heads from the xt/baja/legacy/sti would be better. The new ecu and electronics would make things a pain...
What makes you think the EJ22 is so much better? I'm not criticizing, but I'd imagine the engineers at subaru have done something to improve things in the EJ series over the last 14 years since the 2.2L was created
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Old 05-21-2004, 10:31 AM   #21
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I don't know the specifics, but lots of drivers/vendors still say the EJ22-T was the strongest engine Subaru ever had.


*shrug*
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Old 05-21-2004, 12:58 PM   #22
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Quote:
Originally posted by Siper2
I don't know the specifics, but lots of drivers/vendors still say the EJ22-T was the strongest engine Subaru ever had.

*shrug*
strongest for sure. but it it the best?
if you want revs = jdm sti 2.0l
if you want torque = usdm sti 2.5l
if you want high boost = then 2.2 closed deck
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Old 05-21-2004, 01:21 PM   #23
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I think that's why, then. No it doesn't have the highest torque, and no it doesn't rev as high, but it seems to be the best all-arounder, and can take the larger turbos. So it can probably make more power in the long run than the others.... at least on a smaller budget and with less nail-biting.
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Old 05-21-2004, 01:47 PM   #24
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I'm sure it's tough, but there's more to an engine block holding boost than deck stiffness... I'd rather have the better cooling and possibly more efficient materials/design of a later block...
on the other hand, I do think the EJ22 is a good middle ground... more torque than an EJ20 is likely to make, w/o suffering from the low revability of larger motors...
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Old 05-21-2004, 02:16 PM   #25
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Quote:
Originally posted by mrbell
What makes you think the EJ22 is so much better? I'm not criticizing, but I'd imagine the engineers at subaru have done something to improve things in the EJ series over the last 14 years since the 2.2L was created


RS_to_WRX_swap is good way to think about it... But the ej22 is flat out the best block subaru has ever made. The pistons on the ej257 are sorry, the rods are nice but because of the heavy pistons they arnt great. The walls are the thinest of any subaru... and they are already out of round, so its will be easyer to oval. Subaru engineers have cut costs not made a better block. Now its a very nice bang for the buck block... but its not top dog by any standards.
A number of builders have put 23-24psi limit on it, if you want it to last more then a few months. And reving it past 7000 is realy pushing thoes piston speeds and putting a massive load on the rods. Now the limits im talking about are extreme and more then anyone needs in a daily driver around ~400whp.

http://forums.nasioc.com/forums/show...hreadid=536442

Intersting factoid the wrc car uses a block much closer to the ej20Gs then the ej207s.
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