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Old 06-11-2001, 08:06 AM   #1
wop
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Post 2.2/2.5 owners... what is involved?

I am still thinking about running a 2.2 bottom with my 2.5 head. what all do I need. correct me if I am wrong but I *think* all I will need is a complete 2.2 short block, my heads, custom turbo kit, and a fuel system. am I missing anything? what does a complete 2.2 bottom end cost? and if you don't mind me asking... what did the whole transformation cost you?

thanks,

-wop
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Old 06-11-2001, 02:37 PM   #2
wop
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bump.

-wop
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Old 06-11-2001, 02:40 PM   #3
SubaFastR
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Why bother? Just beef up your 2.5 with forged low compression pistons and rods. More power, and probably more cost effective.
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Old 06-12-2001, 08:53 AM   #4
wop
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because the 2.2 is a closed deck and much stronger than the 2.5.

-wop
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Old 06-12-2001, 11:26 AM   #5
mrbell
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A standard 2.2L isn't closed deck. The old 2.2 Legacy Turbo's are closed, but they might be hard to find(I don't know). Good luck tho, I might do this in the future, so let us know how things go!
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Old 06-12-2001, 11:30 AM   #6
wop
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mrbell-

good call. it would be a closed deck from iSR for under $2,000.00.

-wop
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Old 06-12-2001, 06:33 PM   #7
The Real Oaf
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Wop:

I'm doing the same project as you!
I've decided to use a new EJ22 turbo shortblock and 2.5 heads.
The shortblock will run +/- $1400, and I have yet to get a price from the dealer on new heads, but I suspect they'll run about the same price for the pair.
Are you planning on using DOHC or SOHC heads?
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Old 06-12-2001, 08:15 PM   #8
AaronB
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I have heard that when you run 320-350 hp on the 2.2 turbo pistons, you may have a tendency to crack them. If you plan on running enough power to need a closed deck, you may want to consider forged low compression pistons.

Aaron
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Old 06-12-2001, 11:27 PM   #9
SYMSWRX
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why not just buy an EJ20 then ???
every thing is turbo ready !!
I've one sitting in my house , may be we could share some ideal together !!
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Old 06-13-2001, 08:54 AM   #10
wop
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The Real Oaf-

I will be using my MY99 2.5 SOHC heads.

AaronB-

forged J & E's will be present .

SYMSWRX-

the EJ22 closed deck is "turbo ready" also. more displacement than an EJ20 and stronger than an EJ25 .

-wop
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Old 06-13-2001, 11:08 AM   #11
outback motorsports
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we have a 2.2 turbo motor less turbo for $2200.it was a subaru take out motor.it is really clean.less than 10k miles give us a call 714 994 5600 steve or john
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Old 06-13-2001, 11:15 AM   #12
Aspen
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I bet your tranny will go out way before the block. Why not invest the money into a built tranny instead?

I don't know too many people that have actually blown NA 2.5 or 2.2 blocks.
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Old 06-13-2001, 11:36 AM   #13
Aphex
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you can send your 2.5 block to Cobb tuning too and turn it into a closed deck, then put in better pistons and rods, buy his beefed up heads and turbo cams, and have much more power than a 2.2.
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Old 06-13-2001, 06:40 PM   #14
jeff22
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Newbe- talk to me if you got questions, I just bought a 2.2L turbo block from subaru $1300 /w my discount.
If you plan on big hp you must change pistons and rods! why put $1000 into a 2.5rs motor for a closed deck from cobb tuning? structal integraty is still not as good! pistons and rods are about the same price for both motors! 2.2 will take a ton more power! talk to jc sports tech line they told me some guy has 385hp and 405lbft of torque. you will need many more mods to get this but the potental is their. 99 2.5rs heads bolt right up I don't know about any other models but i wouldn't see why not!some guy in cali has a stroker kit for the 2.0 2.2& 2.5L motors any way you go just do it right! with a new short block you also have less downtime with your car!!!!!
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Old 06-13-2001, 07:12 PM   #15
Rovah
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This is becoming a popular route!

Bill Harvey has recently completed this project-see "It's Alive," in the New England forums.

I have a EJ22t block that I just purchased and will make the swap as soon as I get all the gaskets and seals I need from Exeter Subaru in NH.

Bill is apparently running 3-5 psi right now with his JCS turbo kit, but has to wait a bit until the block is broke in. He is running the stock ECU as well.

FWIW, I have not heard of anyone paying more than $1,400 for a new short block from a Subaru dealer.

Cheers! John
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Old 06-13-2001, 08:35 PM   #16
SubaFastR
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Has anyone actually blown the 2.5 block? I really don't see the value here. Seems to me you can make more power with less boost with the 2.5
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Old 06-14-2001, 12:49 AM   #17
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HOK, and anyone interested in the 2.2: B-Spec carries rods & pistons, as well as other performance parts for this project. Check our website, or e-mail Byron directly, if we can answer any questions regarding the 2.2 vs the 2.5. These parts have been tested and proven on our own car (Byron's B-Spec Impreza). Thanks, and good luck with your projects! Vickey. www.B-SpecUSA.com
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Old 06-14-2001, 12:59 AM   #18
HOK
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Wop...

I have already done what you propose... but without the pistons... where did you get the pistons?

I'm running 440 cc injectors... and I'm doing fine...I havn't turned the boost over 15psi. since the tranny will go and the ignition maps are not well suited.... until i get the unichip or link or something...

yep all you need is the heads and a fuel system to start off with... you won't be doing more than 15 psi without knock.. even on high octane or race... I'm planning to get a msd unit or something...

ask me if you have any more questions....

Andre Vanderburg (i think is his name) also has done this conversion...
since my costs where including repairs... they are not accurate.

Hok
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