Full STi engine swap into WRX

jdiddy · 03-15-2006, 12:23 PM

I've got an '02 that I am getting ready to rebuild. My options are 2.5L shortblock with stock heads and the VF34 that is currently on the car.....or full Sti motor swap. Money doesn't matter because they are going to be the same cost to me.

Basically heres my question can I use my WRX ECU w/ UTEC on teh STi motor or will I need to do a full ECU swap as well?

TIA

ps yes Ive searched (I hate the search engine here)

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Element Tuning · 03-15-2006, 08:15 PM

This should help get you started:

http://www.elementtuning.com/V8%20In...%20Install.htm

Good luck.
Phil
www.elementtuning.com

pux888 · 03-15-2006, 09:10 PM

yeah you can get by w/ your wrx ecu and utec. I ran mine that way for a while, but you will be missing out on the magic that avcs provides!

keaniegenie · 03-16-2006, 12:55 PM

Yes. The AVCS makes a big diff. I'm doing the same swap and I'm selling my UTEC for a Hydra for the AVCS control. If you're not willing to get a STI ECU with a STI UTEC, get a Hydra, or just get the STI block and put different cams in your WRX heads.

03-15-2006, 12:23 PM	#1
jdiddy Scooby Specialist Member#: 108144 Join Date: Feb 2006 Chapter/Region: South East Location: Knoxvegas Vehicle: 04 Forester XT 4eat	Full STi engine swap into WRX I've got an '02 that I am getting ready to rebuild. My options are 2.5L shortblock with stock heads and the VF34 that is currently on the car.....or full Sti motor swap. Money doesn't matter because they are going to be the same cost to me. Basically heres my question can I use my WRX ECU w/ UTEC on teh STi motor or will I need to do a full ECU swap as well? TIA ps yes Ive searched (I hate the search engine here) * Registered users of the site do not see these ads.

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03-15-2006, 08:15 PM	#2
Element Tuning Former Vendor Member#: 54918 Join Date: Feb 2004 Chapter/Region: MAIC Location: Gaithersburg, MD Vehicle: 673 WHP Element Tuning Pro Comp Engine	This should help get you started: http://www.elementtuning.com/V8%20In...%20Install.htm Good luck. Phil www.elementtuning.com

03-15-2006, 09:10 PM	#3
pux888 Scooby Specialist Member#: 8356 Join Date: Jul 2001 Chapter/Region: MAIC Vehicle: 02 STi swap 12 WRX limited	yeah you can get by w/ your wrx ecu and utec. I ran mine that way for a while, but you will be missing out on the magic that avcs provides!

03-16-2006, 12:55 PM	#4
keaniegenie Scooby Specialist Member#: 94494 Join Date: Aug 2005 Chapter/Region: NWIC Location: Seattle Vehicle: 2005 Element 92x Black	Yes. The AVCS makes a big diff. I'm doing the same swap and I'm selling my UTEC for a Hydra for the AVCS control. If you're not willing to get a STI ECU with a STI UTEC, get a Hydra, or just get the STI block and put different cams in your WRX heads.