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Old 01-10-2015, 02:05 PM   #49
Scooby Newbie
Member#: 405638
Join Date: Nov 2014
Chapter/Region: RMIC
Location: Moab
2002 WRX Wagon


Sorry for the delay, still new to this site.
The JDM engine had a flex-plate on it that bolted right up to my torque converter. Yes, mines an automatic
The turbo looks identical, so I used the JDM, waste gate and all.
The JDM intake manifold had no TGVS on it so I used the USDM one. I don't know how hard it would be to make the JDM intake work, it would flow much better for sure and the retune would be able to negate the DTCs being set.
I'm not sure what years of engines will work best.
You shouldn't have to change all the timing gears. I changed the crank gear and one cam gear, the ones with the sensors on them. I kept the JDM crank and cam sensors.
Got lucky, my engine knock was the timing belt tensioner rattling. I compressed the rod on the tensioner too fast and blew out the seal on it when I changed the timing components.
Here is a pic of the rear of the crank pullies, you can see the signal sent to the ecu is different.
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Last edited by Offroadguy; 01-10-2015 at 06:40 PM. Reason: posting pic
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