Overview:
The EJ20x swap overall has recently received a bad wrap I feel, it is a fantastic budget friendly engine to swap into your Single (Intake Only) AVCS 06-14 'WRX/05-09' LGT or OBXT/04-13' FXT/04-07 STI as long as you follow my outline to properly delete the Exhaust AVCS, without completing this critical step the engine will feel gutless until 3,000rpm and your tuner will hate you. I have done several of these in various Subaru configurations and have yielded overall positive results in all examples. This customer’s WRX will be tuned conservatively on 93 pump gas, however because the 9.5:1 compression ratio these motors prefer e85. Its best to hand select your engine from the importer by compression testing yourself and looking it over before buying. If you are installing this engine in a dual AVCS equipped 08-21' STI, just plug exhaust avcs sensors & solenoids in and run it as is.
It is also a great idea to replace valve cover gaskets, spark plug tube seals, rear main seal, intake/exhaust gaskets, spark plugs, coolant crossover pipe o-rings, remove oil feed lines banjo bolt filters, etc. while the engine is on the motor stand.
Chassis:
2011 WRX Premium 5MT
-EJ20X – Non-Air pump 2.0L engine from Japan
-Delete Exhaust AVCS and used EJ255 Plastic Cam Gear (Turn back Exhaust cams 1 Tooth (7*) to more closely mimic the EJ255 Exhaust cam profile - I made this change after filming unfortunately)
@TheSubieSanctuary did a great job explaining this process:[ Ссылка ]
-Leave Exhaust AVCS oil solenoid and cam sensor in place; unplugged
-IA Performance AVCS Delete kit - [ Ссылка ]
-IA Performance AVCS Delete PDF Instructions - [ Ссылка ]
-Opensource E-tune through D-Mann tuning - [ Ссылка ] (He will only tune your EJ20x/y if you’ve properly deleted the exhaust AVCS or plugged it in and made it functional).
Engine Mods: (Not all required to complete 20x swap, but smart to install mods all at once prior to tune)
-Aisin Timing & waterpump kit – TKF005
-VF52 replacement CHRA upgraded Billet Compressor Wheel
-Stock EJ255 UEL Header
-Grimmspeed 2 bolt up pipe
-Invidia Catless DP
-Tomei TI 3” Single Exit Catback Exhaust
-Perrin Silicone Turbo Inlet
-Cobb SF Intake
-3 Port MAC EBCS
-Crawford AOS
-AVO Upgraded TMIC + Mr. Gasket738G (for flange to turbo connection)
-Turbo XS Full Reserc BPV
-Cleaned and flow tested stock 565cc Dark Blue Injectors
-AEM340 Fuel Pump (stock wiring)
-NGK 2309 1-step colder Spark Plugs
-Engine pre equipped w/ cyl 4 cooling mod – just add a 5/8” “T” fitting into outer most heater hose
-TGV “Mod”
-Air pump “Mod”
-Oil Feed Line Banjo bolt filter removal - [ Ссылка ]
-Reseal Oil Pan
-Reused EJ255 A/C Compressor & Bracket (Tapped (2) M8x1.25 Bolt holes to use standard tensioner)
-New A/C lines O-rings + recharge
-Resurfaced OEM Flywheel
-Exedy Stage 1 Clutch kit
-New Clutch fork (these are known to break)
Music:
“Vibes” – Beast Inside Beats – I do not own the writes to this music.
