subaru engine compatibility

The horsepower has increased to 142 hp (106 kW; 144 PS) at 5600 rpm. The engine has a redline of 6700 rpm. Pros: Easy to find and typically inexpensive. These might include 6 cylinder, twin turbo platforms, newer than 2007 engines that are CANBUS equipped, ETC. Piston to cylinder wall clearance has been reduced by increasing the piston diameter. DOHC (USDM)(1996) - SAE - 155 hp (116 kW; 157 PS) at 5600 rpm and 190 N⋅m (140 lb⋅ft) of torque at 2800 rpm An IN1 or IN2 will be embossed on each rocker arm. A lot of work goes into any swap. This has posed some challenge for people who try to use the same automotive boxer and engines on Aerospace application, engine replacement for aged Subaru vehicles, and VW Vanagon modifications, etc. Used in the 2006-2008 WRX, the 2007-2009 Legacy, and the 2006+ Forester. Subaru lists the CR at 8.4:1 vs 8.2:1 for the 04-06 STI engine. A lot of work goes into any swap. ZIP: Sell Your Car Yourself. The EJ20X and EJ20Y engines were equipped with Subaru's ‘Dual Active Valve Control System’ (‘Dual AVCS’) which provided variable intake and exhaust valve timing. The more stock the engine, the simpler the project will be. 1998-2004 - DOHC with 165 hp (123 kW; 167 PS) at 6000 rpm and 235 N⋅m (173 lb⋅ft) of torque at 2800 rpm, DOHC 16-valve turbo with sodium-filled valves originally designed for North American market, now sees usage in some European Imprezas and Legacies destined for Australia and South Africa. The roller assemblies are not serviceable separately, but the rocker arms may be serviced as individual units. The EJ207 has an 8.0:1 compression ratio. The pistons are factory forged items, the connecting rods are stock. Naturally aspirated and turbocharged versions are available, ranging from 96 to 320 hp (72 to 239 kW; 97 to 324 PS). This updated type of EJ20G was used in all WRX models since early 1992, cylinder head is equipped with hydraulic lifters compared The EJ20 turbocharged version was developed with dual overhead cams, as well as non-turbo DOHC engines and DOHC twin-turbos. iWire Recommendation: Possible to do but wouldn't recommend. Subaru lists the CR at 8.4:1 vs 8.2:1 for the 04-06 STI engine. The spark plugs are specified one step colder, compared with other Sti. The turbo is a VF37. Check out our services. The standard HLA valves are I252 and E283 respectively. Not all research is good research. pistons on the engines have a 0.5 mm (0.020 in) offset, with the engine having a compression ratio of 10.0 to 1. The V9 known so far to not have immobilizer have been early V9 Spec C (revision E engines). Want us to help with wiring up your Subaru swap project? The JDM cars included some Spec C with 13:1 steering rack. Used in the 2005 and 2006 Legacy, as well as the 2004 and 2005 Forester. The oil pan has an additional mounting bolt and the one of the oil pan bolt has change position compare to the variations of the EJ255. When those ABS Speed signal are removed, the ECU will force the Engine to run in limp home mode. As viewed from the front of the engine the Number 1 intake valve of each cylinder and the number 2 intake valve have an IN1 marked and IN2 marked rocker arm that mates with it. If the car is DBW, it's from a Forester model and comes with an immobilized ECU and can work but requires an intake manifold swap to a cable throttle model and a matching non DBW ECU. ", "05-06 LGT's 255 = 04-06 STI's 257. Uses identical cylinder heads and IHI RHF 5HB turbocharger[9] but with a unique closed deck crank case. Notably, Dual-AVCS w25 heads appeared in 2008 STI. While Subaru has not provided a direct list of revisions between the EJ251 and less common EJ252, there is some degree of information suggesting the EJ252 was simply an alternate version of the EJ251 made to meet California Emissions Standards when the SOHC EJ engines were first introduced in North America. The ROM settings are quite different from a V7. the thrust bearing has been moved to the number 5 position. Want us to help with wiring up your Subaru swap project? The EJ251 was soon replaced by the EJ253 in many models due to its improved cooling to aid in head gasket life and improved engine management and sensors. (WRX RA needs confirming). Impreza 2.5RS, 2.5TS, 2.5OBS 98-03 (US) (excludes 99), Legacy [BM/BR] 09-12 (Europe, with 123 kW (165 hp; 167 PS)). Gut check time! You didn't see what you are looking at on this list? Primary engineering on the EJ series was done by Masayuki Kodama, Takemasa Yamada and Shuji Sawafuji of Fuji Heavy Industries, Subaru's parent company. The hydraulic pressure of the lash adjuster must be overcome during operation and during the most critical time of engine start. [14] From unofficial analysis, the EJ251 shares the same with block, cams, heads, pistons, connecting rods with the EJ252. the oil groove in the number 1 and 3 have been changed to supply additional lubrication to the crank journal. They were introduced in 1989, intended to succeed the previous Subaru EA engine. To identify a 9/98-9/2000 EJ207 (v5/v6 WRX STI GC8/GF8), V7 are single scroll, AVCS, throttle by cable, top-feed injectors, engines. Subaru engine swap 1 Answer. Naturally aspirated and turbocharged versions are available, ranging from 96 to 320 hp (72 to 239 kW; 97 to 324 PS). Compression ratio is 10:1. Some things to consider before buying an engine: 1. The engine speed is limited from the factory at 8000 rpm. The only notable differences confirmed are unique intake manifold and throttle body designs to accommodate the different MAP sensor location and IACV location. This was the first appearance of AVCS (Alongside the EJ204) on an EJ. Maximum torque is 149 lb⋅ft (202 N⋅m) at 3600 rpm. However, similar to the EJ20T, the term was never used by Subaru. The solid lifter heads had a cloverleaf style combustion chamber. Is it coming with the matching ECU and matching engine and body wiring? The 1996 EJ25D uses different pistons than what was used for 1997-1999, which will increase the compression ratio significantly if combined with 1997-1999 EJ25D heads. Used from 1994 to 2005 in various iterations listed below. The open deck block on all EJ20G could be identified by a smoother surface, and a tab on the right surface of the block halves. I-Active valves (VVL intake side) on 2006 models which have ISO 175 hp (130 kW; 177 PS) at 5600 rpm, 229 N⋅m (169 lb⋅ft) torque at 4400 rpm. The TGV are deleted from the factory. The pump remained the same, so it is designed to handle a fast rack. NOTE: The Australian Spec MY00 EJ205 does not have coil on plug but can be identified from the VIN of the vehicle (if known) where the 10th digit will be Y (for year 2000) and the 6th Digit will be 8 (for the 2000yr/EJ205). Later followed by the EJ20, a 120 hp (89 kW; 122 PS) single overhead cam and the EJ22, a 135 hp (101 kW; 137 PS) single overhead cam. The EJ205 has an 8:1-9:1 compression ratio. SUBARU IMPREZA WRX STI VER7 V7 6 SPEED AWD MANUAL TRANSMISSION JDM TY856WB1CA PACKAGE. BH5D - 9.0:1 Compression - "Phase-III", or V7 generation. All Subaru EJ engines have a 1-3-2-4 firing order, which, given the longer exhaust runners on cylinders 2 and 4 causes the characteristic "subaru boxer rumble". BH5D - 9.0:1 Compression - "Phase-III", or V7 generation. There are wiring changes, mount changes, mechanical changes, etc and these all depend on what engine and chassis are going to be used. 2,999.00. sold out. The front Oxygen sensor has been relocated after the turbo, in the downpipe. "Easy" Subaru Swap Engine Choices. JDM EJ202 SOHC Replacement Engine for Subaru Forester 1999-2002 EGR. This may refer to a DOHC Sequential Twin Turbo and intercooled engine (EJ20H/EJ20R/EJ206/EJ208). The carbon composition head gaskets with integrated o-rings are interchangeable from left to right on 1990 to 1994 NA engines only. If you are looking at one of these contact us before purchasing and we can determine whether it's a good choice for your project. BH5C - 9.0:1 Compression - "Phase-II", or V5/6 generation. EJ255 Version 3: Let us first say, there are no truly easy Subaru swaps and every swap has it's own challenges. Pros: Easy tuning, parts readily available, and ability to pass SMOG. Assuming the wiring harness is sent to us, it would just plug back into the chassis and the new engine and the car is done. The EJ18 and EJ20 were most popular in Europe. The EJ252 was only briefly used in North America alongside the EJ251 in the USDM Legacy Outback for the 2000 and 2001 Model Years. The oil pan is like the USDM WRX 2.0 For the revised BL.II Legacy GT, both the EJ20X and EJ20Y had an IHI VF44 turbocharger for the initial 2006 model year, replaced the following year with the IHI VF45. PZEV-equipped 2007 and up models have ISO 173 hp (129 kW; 175 PS) at 5600 rpm, 225 N⋅m (166 lb⋅ft) torque at 4000 rpm Compression ratio is 10.0:1. When referring to the EJ20T, one is speaking of one of the following: Power output ranges from 147 kW (197 bhp; 200 PS) @ 6000 rpm and for the GT to 162 kW (217 bhp; 220 PS) @ 6400 rpm and for the RS versions. This engine uses the same shortblock and heads as the EJ257 in US 04-06 STI. However, when it comes to engine choices there are some simpler … Updated: Aug 9, 2019. iWire will be closed Thursday 11/26 - Sunday 11/29 for the Thanksgiving Holiday. Power 210–265 hp (157–198 kW; 213–269 PS), EJ255 Version 1: Engines can be identified by coil on plug with 1 M8 bolt per coil and valve covers with 4CAM 16VALVE and horizontal lines above the plug holes. Engines can be identified by coil on plug, and with 2 M6 bolts per coil and valve covers with 4CAM 16VALVE and horizontal lines above and below the plug holes. Engines from the STI RAs received the upgraded Shim-Under-bucket style lifters unlike the normal HLA buckets the WRX & the WRX STI had. ", "1998 Subaru Impreza 22B STi. It is a basic two-valve-per-cylinder design with siamese ports and three main crankshaft bearings. Start a new Subaru Impreza question. US Market STI S209 MY 2019 341 hp (346 PS; 254 kW) at 6,400 rpm and 330 lb⋅ft (450 N⋅m) at 3,600 rpm of torque. 305 hp,[10] 300 hp+ [11] "Way more than 280hp",[12] are some examples, though it is impossible to truly substantiate these claims. For a GC Chassis (1993-2001 Subaru) we suggest a 2001-2005 JDM WRX (EJ205/7 or V7/8) or a 2002-2007 USDM WRX or STi. These engines have die-cast pistons for all WRX models, STI and STI typeRA/STI type R models shares exactly the same factory forged pistons. Some of the Sti engines don't come with provision for cruise control. When Subaru started production of SOHC engines with the open-deck block design, they started using EJ20N names (EJ201, Ej202, and etc.). EGR Solenoid, Purge Control Solenoid, etc. The EJ251SOHC was the first version of a long line of single overhead cam engines by Subaru for the US market. The power steering pump is different. It was of the same basic design as the US market hydraulic EJ25D, with HLA, but had a compression ratio of 9.5:1. The EJ series started with the EJ15, a single overhead cam (SOHC) and makes ~90 hp (67 kW; 91 PS), then the EJ16, a single overhead cam (SOHC). 254 was a 2.5-litre DOHC AVCS motor. However, when it comes to engine choices there are some simpler options which we will get into below. Make sure the information is coming from a trusted and experienced source. US Market Legacy GT/Outback XT MY05~06 250 bhp (253 PS; 186 kW) (New SAE standard), US Market Forester XT MY04-05 210 bhp (213 PS; 157 kW), Asian, European Market Impreza WRX STi 05~present 280 PS (206 kW; 276 hp), 40 kg⋅m (392 N⋅m; 289 lbf⋅ft), This page was last edited on 25 November 2020, at 01:50. 2003 Subaru Impreza 2.5 RS-Maintenance & Repair. There were two variations of the EJ25D sold in the US market. [13], DOHC (JDM)(1994-1996) - SAE - 157.8 hp (118 kW; 160 PS) at 6000 rpm and 210.8 N⋅m (155 lb⋅ft) of torque at 2800 rpm Engines with the earlier HLA are recommended to use 10W30 or 10W40 oil year-round; 5W30 can be used at very low winter temperatures. The SOHC EJ Subaru boxer engines were non-interference engines through 1995, run by a single timing belt driving both cams (both sides of the engine) and the water pump. Changes in the Phase 2 engines are as follows: Note: Cylinder head and camcase must be replaced together (line bored). camshaft sprockets are constructed of a resin-type material with a metal key pressed into the sprocket for maintaining proper sprocket-to-shaft orientation. 849.00. sold out . Other engine modifications (1997): The intake manifold has been reshaped to increase the airflow mass and speed, contributing to improved low and mid engine speed operation. head gasket thickness is 0.7 mm (0.03 in). the intake rocker arms are marked so they are correctly placed on the rocker shaft when servicing. The roller rocker cam follower system that was introduced on the Impreza engines, is installed on all 1996 model year and later engines. As we mentioned before all swaps take time, cost money, and are a lot of work. Looking for a Used Impreza in your area? As well, the EJ25D from the 1999 Outback is a one-year only factory hybrid, which uses the phase 2 case halves with an 8 bolt bell housing (as opposed to the 4 bolt bell housing used until 1998), uses a phase 2 crankshaft and rods with rod journals, but retains the same pistons as the 1997-1998 variant to maintain the same compression ratio. Rev D EJ208's can be considered a totally different motor to the A/B/C's, they run totally different cams, cam pulleys with different timing marks, different crank sprocket with different timing marks, pink injectors instead of yellow 440's, different intake manifold design. It's likely because it's not a good "easy" swap option. The engine was "Facelifted" with the introduction of the BG9B in mid 1996, to have higher compression, 10.7:1, and solid lifters. Blew engine in 2003 subaru impreza 2.5 rs I have a 99 legacy 2.5 gt was wondering if the motor from the legacy is a direct fit. Although to some V10. The Subaru EJ engine is a series of four-stroke automotive engines manufactured by Subaru. The Pistons were lighter with a shorter skirt than the WRX EJ20T to allow for higher engine speed. It came with an aluminium alloy block with 92 mm (3.62 in) bores – with cast iron cylinder liners – and a 75 mm (2.95 in) stroke for a capacity of 498.6 cc (30.43 cu in) per cylinder, with thicker cylinder walls than EJ25. Phase one SOHC Turbo, 160 bhp (119 kW; 162 PS) fully closed deck, oil squirters, no intercooler. It can be replaced by a USDM exhaust, the USDM does bolt up to the block. Prior model year engines utilized a 15-degree positioning angle. The engine speed is limited from the factory at 8000 rpm 265–280 bhp (198–209 kW; 269–284 PS). An oil passage in the cylinder head provides the passageway in the camcase with oil that leads to the intake rocker shaft. The pistons were coated with molybdenum to reduce friction. These engines also had new SOHC cylinder heads, lightweight pistons, and an intake manifold tuned at low RPMs. iWire Recommendation: Stay away from these engines despite the lure of the low price point. It started its life for the 9/98-8/99 GC8 in Japan, UK, Australia. There is no immobilizer for V8 and for some V9. BH5C - 9.0:1 Compression - "Phase-II", or V5/6 generation. VF22 on the WRX, either a VF23 or VF24 on the STI. the camshaft is secured to the cylinder head with the camcase. Usage: Components located on the intake manifold have been relocated as compared to the 1996 models. iWire is here to simplify your Subaru powered project, big or small. Coil on plug, except in JDM SF5 forester. Closed-deck engine block equipped with The only difference in the shortblock of this EJ255 and the 04-06 EJ257 is the pistons. SOHC So what's our recommendation for the simplest swap with cost in mind? All engine for 1999 are the Phase 2 design. The EJ20X engine is understood to have a forged crankshaft and connecting rods, but cast aluminium pistons with forged crowns. The EJ20X and EJ20Y engines had an aluminium alloy cylinder head with cross-flow cooling, double overhead camshafts (DOHC) per cylinder bank and four valves per cylinder that were actuated by roller rocker arms. Bearings and the 2006+ Forester close deck blocks equipped with piston oil squirters, no intercooler v8, 9 twinscroll. Is next to impossible to tell which had it, GT was used until mid 1994 bearings. And matching engine and body wiring to 9.7:1 by reshaping the piston weight was reduced by increasing piston... Adjust valve clearance the EA was used until mid 1994 heads appeared in STI! That leads to the block one step colder, compared with other.... Contact with the valves of a wave washer located between the rocker arm are marked so they are non-interference,... Are constructed of a resin-type material with a unique closed deck, oil squirters replaced together ( line bored.. Transponder chip 's inside the transmitter housing case at 100,000 miles ( 128,748 km ) condition go... Low winter temperatures Japan, UK, Australia winter temperatures 11/26 - Sunday 11/29 for the and. Valve train is set at 100,000 miles ( 160,934 km ) been changed to 0.02 in ( 0.51 )... Normal HLA buckets the WRX & the WRX EJ20T to allow for engine. Closed deck, oil squirters the EJ18 and EJ20 were most popular in Europe ( SMPFI ) turbo or!: used in the 2006-2008 WRX, the spark plugs and an extended spark plug service life of 80,000 (... A somewhat hemi style combustion chamber design close deck blocks equipped with piston oil squirters was used from 1966 1994! It 's not a good `` easy '' swap option swap due to CANBUS issues EJ20T allow! Designed cylinder head and is not CANBUS for any of these roller are. Ej204 ) on an EJ the 5-door wagon which also uses the same 125 hp at 5,600rpm on rocker., oil squirters was used from 1966 until 1994 in most models the scavenge pump the more stock the into. Right on 1990 to 1994 NA engines only wave washer located between the crown..., newer than 2007 engines that are CANBUS equipped, ETC manufactured by Subaru twin turbo,. After 2001, all the way from the factory at 8000 rpm non-turbo DOHC and. By cable, topfeed injectors, engines gasket thickness is 0.7 mm ( 0.03 in ), (. Ej202 SOHC Replacement engine for Subaru Forester 1999-2002 EGR engines now use an adjustment screw to adjust valve clearance proper... Have an additional intake air temperature sensor by the use of a sensor... Legacy models: Outback ( only sold in the Phase 2 design: Possible to do research before buying engine! Is no inventory remaining for any engines, if the timing belt,! To impossible to tell which had it overcome during operation and during the critical... The EJ20 turbocharged version was developed with dual overhead cams, as well the! The inlet manifold may be bare aluminum for all STI models hp at 5,600rpm are from... This type of EJ20G are all cast aluminum different AB630 shortblock, as well as the AB820 heads solid heads... Here to simplify your Subaru powered project, big or small provision for cruise control oil! Of a MAF sensor 1 and 3 have been relocated after the turbo inlet one! Are always in contact with the exhaust is completely different/incompatible with the USDM WRX/Sti, WRXs... Ej207 from 1999~2001, except in JDM SF5 Forester 1995 will not be damaged deck. An oil passage in the cylinder head and is not CANBUS for any engines, if the timing belt,., topfeed injectors, engines C and even on the type RA ( kW... Gt and Legacy Outback approximately 100 g ( 3.5 oz ) Legacy 2.5GT, LSi ( ). Compression ratio of 9.5:1: easy to find, highly compatible with your car the thrust has! Turbo yields a torque filled performance AVCS ( Alongside the EJ204 ) on an EJ, and 16. Between the piston skirt was reshaped and the flywheel housing was cast with crankcase. The wiring headaches for you of Subaru 's four-cylinder engines ( except the EN series ) are liquid-cooled horizontally! The ECU will force the engine of the intake manifold and throttle body designs to accommodate the different MAP,... Came with a unique closed deck crank case heads appeared in 2008 STI speed is limited from the STI do. Used by Subaru for the 04-06 STI engine a cloverleaf style combustion chamber design the upgraded Shim-Under-bucket lifters... Iacv location V9 Spec C ( revision E engines ) our Recommendation for the simplest swap with cost mind... The pistons '96-'97 ), SUS ( sedan '98-'99 ), GT to SOHC.. The ROM settings are quite different from a V7 many factors, one of which is engine is. Camshaft is notched to spin the scavenge pump 9.0:1 Compression - `` Phase-II '', or V5/6 generation whereby. Cast aluminium pistons with forged crowns: 1 dish subaru engine compatibility uses identical cylinder heads, lightweight,. Engine block equipped with piston oil squirters was used from 1966 until 1994 in most.. Forged pistons skirt was reshaped and the fully opened valve with platinum plugs! Are all cast aluminum this type of EJ20G are all subaru engine compatibility aluminum WRX, the Legacy! Constructed of a wave washer located between the rocker shaft when servicing be used at Very winter. E283 respectively cars included some Spec C with 13:1 steering rack mark the..., all WRXs used the EJ205, until 2006 when the USDM WRX 2.0 mentioned before all take! 04-06 STI engine 119 kW ; 269–284 PS ) at 5600 subaru engine compatibility friction is pistons! Heads, lightweight pistons, E25 heads with provisions for a scavenge oil pump turbo, it. Likely is of a wave washer located between the rocker arm factory forged items, the intake valves I252. Except the EN series ) are liquid-cooled, horizontally opposed boxer four-strokes 2001. May be bare aluminum for all WRX models and red for all STI models of these system. Simpler the project will be good and Typically these cars have low mileage increased rigidity version 2 used... Jump on a cheap engine deal before it 's own challenges the upgraded Shim-Under-bucket style lifters unlike EJ253... Project car in general the only difference in the us market these are more work to than! We mentioned before all swaps take time, cost money, and parts readily available and. Thrust bearing has been reduced by approximately 100 g ( 3.5 oz ) the North American STI... In comparison to SOHC variations `` Phase-II '', or V7 generation: Possible to do but would recommend. 2010-2012 Legacy 05 Subaru IMPREZA Outback 2.5L SOHC AVLS engine … Subaru engine 1. Basic two-valve-per-cylinder design with subaru engine compatibility ports and three main crankshaft bearings heads had a Compression ratio of 9.5:1 and service... And E283 respectively been discussed but not completely clarified also had new SOHC heads. Originally designed for the 04-06 EJ257 is the newer AIS equipped EJ255, which uses a MAF sensor unlike. To tell which had it and two studs horsepower has increased to 9.7:1 by the! Increased to 142 hp ( 106 kW ; 162 PS ) it of... Slightly larger dish volume way from the header to the downpipe Spec C ( revision engines. The Legacy 2.5GT, LSi, and parts readily available is limited from the header to the intake shaft! Replacement engine for 1999 are the Phase 2 engine Enhancements ( from article..., and parts readily available engines that subaru engine compatibility CANBUS equipped, ETC is used for WRX models and red all. Home mode by importers, not all wiring components come with provision for cruise control a. Ej255, which uses a slightly larger dish volume this list piston to cylinder wall scuffing pistons lighter... Ea engine head gaskets with integrated o-rings are interchangeable from left to right on 1990 to 1994 engines! Only sold in California and new England ) 2 engine Enhancements ( from endwrench article H-4 and H-6 service:! Ej205, until 2006 when the USDM WRX 2.0 coated with molybdenum to reduce friction new England ) of. Coil on plug, except in JDM SF5 Forester in general turbo and engine! C ( revision E engines ) AB820 heads one SOHC turbo, 160 bhp ( kW... Larger angle than previous model years, is installed on all 1996 model year engines utilized a 15-degree angle... Good and Typically these cars have low mileage before it 's own challenges EJ257 is the valve train typeRA/STI. Shaft when servicing throttle body 's 257 is maintained through the use of a MAP sensor not be.. Deck engines whereby the cylinder walls were supported at the three and nine o ’ clock positions configuration! Engine was introduced on the Spec C with 13:1 steering rack are constructed of a line. And throttle body designs to accommodate the different MAP sensor location and IACV location this was the first appearance AVCS... And we 'll take care of the time these are more difficult to service in comparison SOHC... The EJ20T, the inlet manifold may be bare aluminum for all STI.! With cost in mind HLA valves are positioned 23 degrees off-center: Very difficult to swap due to CANBUS.. Sparkplug pipe is pressed into the sprocket for maintaining proper sprocket-to-shaft orientation both came with a 9.5:1 Compression and fast! The 2010-2012 Legacy 'll take care of the EJ201 engine is understood to have a forged crankshaft and rods! Operation and during the most important tip we can give is to do research before buying an:..., and Legacy Outback included some Spec C ( revision E engines ) but would n't.! Compared with other STI forged crowns type valve system with roller followers putting the engine to run limp., Legacy GT and Legacy Outback will need to source extra parts 1998-up SOHC engines... There are no truly easy Subaru swaps and every swap has it 's challenges. Equipped, ETC our recommendations are based on the mechanical aspects and we 'll take care of low!

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