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Old 02-07-2001, 11:39 PM   #1
Eric SS
Sooby Guru
 
Member#: 1914
Join Date: Jul 2000
Chapter/Region: SWIC
Location: 2013 335i, 2011 G37 coupe
Vehicle:
2000 2.5RS w/ EJ22T
swap and N20. gone. : (

Post is it possible to de-stroke the 2.5?

Has anyone used the 2.0L Crankshaft in the 2.5RS to bring the Displacment down but raise the rpm's? I have always liked the idea of de-stroked engines (ex. a destroked Chevy 400ci small bloke with a 350 crank for 377ci for you American muscle nuts )

Is this possible? Thanks!

Eric
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Old 02-08-2001, 06:20 AM   #2
ColinL
Scooby Guru
 
Member#: 114
Join Date: Jul 1999
Chapter/Region: MWSOC
Location: Wichita, KS and Whoring, OT
Vehicle:
'03 Evo, Rice White
'01 Erion CBR 929

Post

Sure it's possible. If the WRX actually does have a forged crank, it would make an interesting project to use it in a 99mm bore 2.5L block. One of Trey Cobb's closed deck blocks, of course.

You would obviously need new rods and pistons, but a 99-100mm bore by 75mm stroke would be interesting. 9k rpm anyone?

(edited some numbers-- EJ25 is 99mm bore stock, 100mm overbore pistons are common.)

[This message has been edited by ColinL (edited February 08, 2001).]
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