Best Engine for Porscheru Conversion, Vote the best Subaru Engine Choice Options

[R_u_dd]

Just for fun, I'm wondering what we get with a poll on engine choices for the Subaru conversion- Porscheru.
From My Notes, relying heavily on Ian at Coldwater914:

Porsche 914 Engine Options

HP Weight lbs/hp
EJ22 130-160 265 1.96
EJ25 165-200 298 1.81
Ej20tt 240 275
EZ30DR 216-245 315 1.85
EG33 225-275

EJ18: Found in Imprezas from 1993-1997. Rated at 110hp and 120 ft-lbs

EJ22 Phase I: Found in Legacies from 1990-1998 and Imprezas from 1995-1998.
Comes rated at 130hp and 137 ft-lbs, 135hp and 140 ft-lbs, or 137hp and 145 ft-lbs.

EJ22 Phase II: Found in Legacies in 1999 and Imprezas from 1999-2001. Rated at 142hp and 149 ft-lbs.

EJ22-T Phase I: Found in Sport Sedan and Touring Wagons (Legacies) from 1990-1994.
Turbocharged and non-intercooled. Rated at 160hp and 181 ft-lbs. Closed
Closed deck, cast pistons, forged rods, oil squirters: turbo motor. Poor flowing heads.

EJ25 DOHC Phase I: Found in Legacies from 1996-1999, Imprezas in 1998, and Foresters in 1998.in 1997-1999.
Rated at either 155hp and 140 ft-lbs in 1996 or 165hp and 162 ft-lbs in 1997-1999.

EJ25 SOHC Phase II: Found in Legacies from 2000+, Imprezas from 1999+, and Foresters from 1999+.
Rated at 165hp and 166 ft-lbs. There was a slight compression ratio change from 1999-2000 where it went from 9.7:1 to 10.0:1.

USDM EJ20: US Domestic Market WRX. Found in 2002+ WRXs. Rated at 227hp and 217 ft-lbs. Turbocharged, intercooled, open deck, and decent heads.

EJ25T DOHC: Available in 2004 in the Forester XT. Rated at 210hp and 235 ft-lbs. Turbocharged, intercooled, VVTi (Variable Valve Timing), and drive by wire.

EJ25T-STi DOHC: Available in 2004 in the WRX STi. Rated at 300hp and 300 ft-lbs.
Turbocharged, intercooled, AVCS (Active Valve Control System), drive by wire, intercooler sprayer, and semi-closed design.

EZ30D, found in 2000-2003 outback and legacy’s. At roughly 212 chp from the factory, it seems to have the lowest hp number of the bunch.
You can tell the difference between the others by the aluminum intake and its single exhaust port heads (looks like a long slot or oval)
as compared the later 6’s or the metal timing cover/size when compared to the eg33. It has two plus sides when compared to the latter EZ’s,
cheap drive by cable, non CANBUS and you can pick this up for around $1-2k. Furthermore the 212hp mark is deceiving, both the intake
and exhaust is extremely constricting on the donor car and from the swaps that have been done/dyno’d (in the Subaru world) just
upgrading to something less restrictive will put power up to 230-240 CHP.

EZ30R: See DBCooper: "Canbus Electronics require an aftermarket ECU for $2,000" but that's old information and not correct. The only reason to keep anything Canbus is to be able to use the OEM ECU, which usually comes with the engine for free, and Subarugears has a black box that will fake all the the rest of the Canbus stuff if that's what you want. Or you can just put on an old manual throttle body to eliminate the drive-by-wire, and then it's just like any other Subaru engine. Several $1200-1500 aftermarket ECU's will run the AVCS, or if you put in some hot aftermarket cams and pre-AVCS cam seals you can eliminate the AVCS altogether and run the whole thing with a $300 Microsquirt ECU. Lots of options, so the Canbus isn't really an obstacle.

The EZ30R engine is also the same size as the EZ30D but has 250 hp stock... "

Related Threads:
Porscheru Engine Choices
Subaru Engine Swap