Engine upgrade for an European STI

stiro · 05-10-2006, 12:35 PM

Hello guys! First please excuse my bad english I am from Romania, Europe and I own a 2004 STI ( EJ20, 2l 265 hp ), and I have been watching this site for some time and it has helped me a lot, it is great! My question is that I want an upgrade my engine and I have been thinking of a 2.2 L stroker kit from Jun with Cosworth forged pistons and an Agency Power Garrett GT35R turbo kit. What do you guys think is it a good choice? I was also looking at the CP GT35R kit and the only difference is that the CP kit dumps de exhaust gas from the wastegate to the downpipe not in the air like the AP kit and that could result in some fire problems. Also I was wondering if the Cosworth forged pistons would hold the great power of the GT35R. How are Cosworth pistons rated around there because here we use only Mahle, Woessner- Kolben and Cosworth. Also if any user of an GT35R kit is reading this how is the car handling I mean did you lost your dailly drive option? Thank you very much guys!

wrx12tt · 05-15-2006, 12:29 PM

I don't know much about building engines, but the companies you selected for use are good, and I've heard good things about the turbo. Cosworth and Jun are good as well...

05-10-2006, 12:35 PM	#1
stiro Scooby Newbie Member#: 114623 Join Date: May 2006 Chapter/Region: International Location: Romania, Bucharest Vehicle: 2004 EDM STI JBP	Engine upgrade for an European STI Hello guys! First please excuse my bad english I am from Romania, Europe and I own a 2004 STI ( EJ20, 2l 265 hp ), and I have been watching this site for some time and it has helped me a lot, it is great! My question is that I want an upgrade my engine and I have been thinking of a 2.2 L stroker kit from Jun with Cosworth forged pistons and an Agency Power Garrett GT35R turbo kit. What do you guys think is it a good choice? I was also looking at the CP GT35R kit and the only difference is that the CP kit dumps de exhaust gas from the wastegate to the downpipe not in the air like the AP kit and that could result in some fire problems. Also I was wondering if the Cosworth forged pistons would hold the great power of the GT35R. How are Cosworth pistons rated around there because here we use only Mahle, Woessner- Kolben and Cosworth. Also if any user of an GT35R kit is reading this how is the car handling I mean did you lost your dailly drive option? Thank you very much guys!

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05-15-2006, 12:29 PM	#2
wrx12tt Scooby Newbie Member#: 108462 Join Date: Feb 2006 Chapter/Region: RMIC Location: Denver, CO Vehicle: 2013 WRX Limited 4Dr SWP	I don't know much about building engines, but the companies you selected for use are good, and I've heard good things about the turbo. Cosworth and Jun are good as well...