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Old 01-27-2005, 09:10 PM   #1
Scooby Newbie
Member#: 68722
Join Date: Aug 2004
Default 2.5 L sti stock shortblock for WRX

Did anyone tried this b4?

I made my mind for this setup and would be glad if some people could tell me about the difficulties i might
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Old 01-28-2005, 12:02 AM   #2
Scooby Specialist
Member#: 53451
Join Date: Jan 2004
Location: Caribbean
2000 JDM Impreza SRX
w/ AVCS Silver


Here in Barbados, none whatsoever.

There is alot of torque as expected down in the low range.

Redline comes quick.

The only problem is the stock turbo, again, which is expected.

The MAF will compensate for the extra 500cc.

Last edited by west_minist; 01-28-2005 at 11:45 AM.
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Old 01-28-2005, 10:29 AM   #3
Scooby Guru
Member#: 7922
Join Date: Jun 2001
Chapter/Region: MWSOC
Location: Tucson
04 CTS-V b/b/b
99 GMC Highrider


Alot of people have done it. It's easy.
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Old 01-28-2005, 01:06 PM   #4
Member#: 12347
Join Date: Nov 2001
Chapter/Region: SCIC
Location: Oceanside, CA
ECU ReProgramming
Dynapack AWD Dyno


Another issue to be aware of is the change in CR. The Stock wrx heads with STi block will net ~8.7CR. It is highly recommended that you change the stock Sti pistons to ones that can lower the CR. Lowing the CR will allow for more long term reliability when tuned/programmed appropriately.
Check out www.crawfordperformance.com for the block and pistons which will suit your needs.

I-Speed USA
[email protected]
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Old 01-28-2005, 01:33 PM   #5
Citizen Mick
Member#: 27646
Join Date: Oct 2002
Chapter/Region: NWIC
Location: Portland, Oregon
2003 Sleeved 2.5
Oil Dry Sump Goodness


Here's someone selling a whole engine.

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