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Old 03-11-2013, 04:48 PM   #12
Scooby Specialist
Member#: 184505
Join Date: Jul 2008
Chapter/Region: E. Canada
Location: Ontario
2003 WRX
Sonic yellow


Originally Posted by morrocco88 View Post
What about valve cover gaskets or other things needed when the time comes? Does it share the same gaskets as the SOHC 2.5? I know sourcing parts was kind of a PITA with my old EJ20G.

I'm really thinking about one of these in my 99' Forester I picked up with a spun bearing. I have an importer local to me with these for $1000. That is way cheaper and easier to find than a 2.5. Also with 4.44 gears and a 5-speed, I bet it wouldn't be too sluggish down low.

Any more info or impressions would be cool!
There is absolutely no difference in the long block. In fact the intake manifolds are from the same castings. The real difference is the 2.5l manifold has the MAP/ IAT in the plenum while the 2.0l has the MAP in the TB and the IAT is in the air box.
These motors are going for a bit less then that up here...

Originally Posted by ballitch View Post
I bet it uses the same or very similar cams to the other phase II sohc engines as well. Now I am having thoughts of swapping forged piston meant for the wrx 2.0L into these engines and boosting the crap out of them.

Is the compression ratio at 10:1 like the 251/3 as well? Time for interweb search... I do find the 10 less HP figured slightly weird, how can you drop 20% displacement and lose only 10 hp...?

From Wikipedia:
Displacement: 1,994 cc
Bore: 92.0 mm
Stroke: 75.0 mm
EJ20E SOHC naturally aspirated
Legacy JDM
1989-1994 125 PS (92 kW) BC - BF series
1993-1999 135 PS (99 kW) BD - BG series( ECU code EURO 3G,D3 ; Asia 4H)
1998-2004 155 PS (114 kW) BE - BH series( ECU code EURO 3G,D3 ; Asia 4H)
2003-2009 140 PS (103 kW) BL - BP series

This motor was built in 01.

And why do you find it so hard to believe the hp number? How does a jdm 2.0l STi make more power then the usdm 2.5?

Also there was a DOHC naturally aspirated 2.0l that you could get in a JDM legacy that was making 190hp back in 2003. And now 10 years later the BRZ has the same numbers.

Originally Posted by morrocco88 View Post
^^^^The real question is the torque output difference. I searched all over the internet and couldn't find any real info on these. Most searches give you importers selling them, but nothing about actual factory specs / power figures.
It's clear that this motor does not produce the same tq figures but I can say that it's not that bad. I am still shocked on how smooth this motor is compared to the 2.5l
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