Fa24 block problems.

Fa24 block problems $4,226. Good in that you won't have to monkey around with mating the FA20 heads to the FA24 block though. Compared to the previous 2. Jul 23, 2020 · Subaru introduced the new FA24 2. /r/WRX is a place for Subaru fanatics to show off their rides, discuss modifications… Monday, Tuesday, Thursday, Friday 7:30am-5pm. You should check it out for info Yeah, that's what I was thinking, but I don't want to mess up the balance of the car. I just haven’t seen anyone blow up an fa24 like that yet. Problems are opportunities to rethink your approach and grow, one solution at a time. Because of the chamber differences between the two engines, for the setup to work properly you needed special pistons put in the 2. 4 Liter engine is a complete new engine. I think he wants to use the FA24F block with FA20D heads, intake manifold, etc, like doing a 1. Worth noting oil performs better at an optimal temperature. Jan 13, 2022 · 「FA24 DITについて詳しく知りたい」。このような疑問について、スバリスト歴13年目の筆者がFA24 DIT（アセント用）について徹底解説します。「FA24 DIT」は歴代最高傑作と呼ばれるほど期待されている水平対向エンジンです。これまでEJ系エンジンを楽しまれてきた人、EZ30のあの気持ちの良い加速 Feb 7, 2008 · The article pointed out that the 2. Subaru ended up using too much RTV sealant on this engine which ended up causing pieces of RTV to fall off inside of the oil pan. 61. This engine consists of the following parts: Brand New OEM FA24 DIT Case Halves; Rated to 600 BHP; Custom Outfront Motorsports Spec FA24DIT Forged Pistons 10. Jan 13, 2025 · The single largest issue with the Ascent in my view is long term reliability (do some reading on this forum as well as other online creditable sources). The lower piece is made from stamped steel, has no baffle, and holds less than half of the engine’s oil capacity. The Most Common Problems With the Subaru WRX You Should Know About (motorbiscuit. 6K views 5 replies 4 participants last post by zephyros Jul 6, 2023 Jun 27, 2024 · Someone I talk with online put together a hybrid and it made a smidge more midrange between 5000-5800 but after that it lost 20whp over a complete FA24 on the same dyno by 6800. Apr 20, 2022 · The issue with this theory is that we don't have confirmation of what exactly is causing failures in the FA24. The FA24 boxer engine is known for oil leaks and the CVT (HT-TR690) is far from bulletproof. Nov 15, 2023 · However, this engine is not without its issues. They are based on the same engine yes, but do not have all the same parts. I can find built blocks from $4500 to $5100, but I can find a FA24 for less lol has anyone tried this So I'm just wondering if swapping the fa24 would actually be better than swapping a EJ into your WRX. Sep 23, 2024 · Subaru has issued service bulletins addressing this problem, so it might be covered under warranty. FA20 Engine Problems and Reliability. Dec 15, 2023 · Just did a quick search, and there are some used FA24 complete motors out there for sale in the $6-7K USD range. We have seen 600+HP stock block with headstuds, so I feel like once fueling get solved a built FA24 should touch off 800. Mar 30, 2021 · The new 2. Some owners engine is suddenly blow, and Toyota Korea reject their warranty because of some ridiculous reasons below. Is anyone familiar with the issues/conditions addressed with the new pressure sensor? FA24 Engine Control System * The software of the Engine Control Module (ECM) was changed for compliance with regulations and to improve functionality. 0-liter FA20 engine. 7 in). 0-liter FA20D in the 2022+ Subaru BRZ and Toyota GR86 models. Its all planned in a risk ratio of not using enough RTV and having oil leak out of the block and pan mating surfaces. 5 that matched the 2. Today is the day we crack open the FA24 shortblock from the GR86 and figure where exactly all that metal came from! The FA24 is a little bit different than t Mar 24, 2025 · If you have any problems with the registration process or your account login, please contact us. Aside from Honda, few manufacturers offer similar NA power per liter, so that says something about its performance in stock form. I’ve stopped using Mobil 1 because I felt like I was just pouring it through the engine. I've seen RS Motor's solution which is great, but I'm not so thrilled about the modification needed on the FA20 cylinder heads to make the FA24 work, that's why I want to try the FA24 short block & heads with the FA20 upper oil pan, timing cover cam carriers and camshafts. Over 120km/h(74. With 2 options both NA tuning and forced induction tuning are supported. C. Specifications: Make:Toyota/Subaru; Model:GR86/BRZ; Year:2022-Engine:FA24; Thickness (mm):t= 1. Aug 5, 2021 · Page 5- Prime Motoring's FA24DIT 500+ whp build (stock block) FA Series Factory 2. Nov 4, 2021 · Ordered a brand new FA24 short-block once the part numbers were published. There are also front brake and suspension issues that remain ongoing on some level. Oil Leaks Ok I guess a 6062 might of been a lot different but my VA has a combination of an ETS 6466 and and a FA20 IAG Long block with ported heads and cams. When she does spool the turbo hits so hard it surpasses 30psi instantly. 4L FA24 Overview. 95; Remarks:OEM thickness t=0. Considering that one would need to drop $5-10K for engine replacement, I am just thinking why stay with the old platform if a very promising FA24dit is already available. Initially the fix was an entire long block, later just a short block. 1. Gen 5: 2015-2019 Problems & DIY Maintenance Gen 4: 2010-2014 Gen 6: 2020 - 2025 Gen 3: 2005-2009. It'll have to be tuned of course. 0mm bore difference (94. The march of progress is more turbid for small manufacturers like Subaru. Oil Pan FA24F Engine Design. US The fa24 engine for this car uses an RTV gasket to seal the oil pan. 0l step3 (trade in new block) Feb 9, 2025 · The FA24’s oiling system wasn’t designed with this level of grip in mind, making it even easier to push the limits of its lubrication capabilities. cardoc 252 Replies. Jun 14, 2024 · Someone I talk with online put together a hybrid and it made a smidge more midrange between 5000-5800 but after that it lost 20whp over a complete FA24 on the same dyno by 6800. The Ascent is just the new name for the model called Tribeca - a pretty popular car from Subaru. [12] Direct injection and a turbocharger are used to provide output comparable to a 6-cylinder naturally aspirated engine , and the FA24 uses "regular" (87 AKI ) fuel. Nov 24, 2024 · In the case of either problem I faced, the answer for both was to apply concepts we’re learning about in the textbook. Save Share Reply Quote Like. 137K subscribers in the WRX community. Hi, I am a 2023 BRZ owner. Here’s why the STI’s FA24 won’t resemble the 3-Row SUV’s engine . Blue FA20 with boltons Red Hybrid FA20 head, FA24 block Green FA24 _____ THE ULTIMATE “WEEKEND RACER”The IAG 1000 FA24 Short Block combines top-tier components and cutting-edge technology to deliver the perfect balance of street reliability and track-level power. It hasn’t taken much time for FA24 owners to start pushing for more power, and early reports indicate that they’re seeing around 350-400WHP with pretty basic modifications and that the engines are responding positively to If you’re looking into swapping a complete FA24 into a Gen 1 FRS or BRZ, I would contact these folks and follow their playbook. Mar 24, 2025 · The FA24 engine is designed with a focus on responsiveness and drivability, making it an ideal choice for both daily commuting and spirited driving. Pre-Owned. [ 13 ] Jan 21, 2020 · Gen 5: 2015-2019 Problems & DIY Maintenance Gen 4: 2010-2014 Gen 6: 2020 - 2025 Gen 3: 2005-2009. 5 qt. 250 ain’t it. Wednesday 7:30am-4pm Saturday-Sunday Closed (714) 994-5222. 4 Turbo Engine Problems. Jun 1, 2021 · First one was a 2004 Wrx(glass transmision) it had a major transmission problems and required a rebuild the second was a 2007 WRX Sti it had a built shortblock it sounded like a diesel at idle Feb 16, 2018 · The FA24 has all-aluminum heads and block, to keep weight down and warm-up rapid. He made low 500's on ethanol. 75l h-comp triple tumble step3 closed-deck; rb26 3. The Most Common Subaru 2. Direct injection makes for much safer power especially with ethanol. Jun 24, 2023 · You can argue all day long about the size of the problem thanks to its visabilty on social media or YouTube or Forums, but if this were a Porsche, or Vette, etc, the mfg would be all over this problem. Sep 17, 2024 · For instance, the FA24 engine is brand new and has only shown up in the Ascent, Legacy XT, Outback XT, and 2022+ WRX. Subaru is well aware that pieces of RTV will fall off and do this. 4L Turbo engine in the Subaru Ascent. Brand new OEM Subaru FHI short block assembly from Subaru for the 2022-23 Subaru WRX. The rtv I can deal with I just need to pull everything apart and fix the gasket. And yeah the only thing making me hesitate on putting a lot of money into this car is that oil problem. Even if it were only a perceived problem. The biggest issue is the FA24 doesn't stand up to increased power well at all. Dec 21, 2019 · Gen 5: 2015-2019 Problems & DIY Maintenance Gen 4: 2010-2014 Gen 6: 2020 - 2025 Gen 3: 2005-2009. As a Honda guy I’m glad Subaru has its own stout block like K series and 4G. Remember brz has a different red line, powerband, compression rario, and isnt boosted. 4L, but he realized the cost of sleeves and tooling is more expensive than sourcing a used, or buying a new, FA24F block. Tho others will still say the EJ is better. What is the volumetric multiplicity of the macrostate “having 2 molecules in the box”? D. 6 mm That being said EJs have been around forever it's a very old Engine with updates every generation. However, the FA24 supposedly has improved piston design and stronger connecting rods, which should hopefully alleviate any lingering issues. Dec 13, 2023 · Just did a quick search, and there are some used FA24 complete motors out there for sale in the $6-7K USD range. We would like to show you a description here but the site won’t allow us. Aug 31, 2023 · None of that has stopped dedicated enthusiasts in the GR86/BRZ community, who are going to great lengths in search of a trustworthy solution. IAG 1000 FA24 Subaru Closed Deck Short Block for 2022-24 WRX - 1000 BHP Availability: Sep 4, 2024 · great post, thank you! Unfortunately, the part number does not apply for the EU spec cars. The FA24’s stock oil pan lacks effective baffling, worsening oil displacement under high G-forces. May 15, 2013 · EDIT: CLosed deck generally means the blocks will withstand more; thats not to say that a subie block can't hold a lot of boost/heat, but the 4G63 with its iron block does used a closed design as its cheaper (tends to hold more power/boost, though internals of course have an effect as well). The process isn’t always easy, but focusing on defining the problem and approaching it step-by-step will always lead to making progress. Aug 23, 2022 · Early 2015-2016 WRXs were notorious for throwing rods at relatively low mileage on tuned engines. to connect to the FA20 ECU will certainly run more labour costs than the supercharger install. I have very affordable solutions in the works for both 17-20 1st gens (which are extremely easy to swap) and 13-16 1st gens (which require a bit of work, but are still extremely straight forward as far as engine May 29, 2018 · Blocks maintaining the original 86mm bore will only require the parallel decking and engraving operations (to identify the block as a Club DSPORT Reference series engine). 4-liter Subaru-built flat-four, the FA24. To achieve a larger displacement, there is a 94-mm bore, but the stroke remains the same. ) manufactured and assembled by Subaru. But the high g turns with the oil problem scares me lol. Oil pickup tube: EJ: cheaply made pickup tube from the factory, it has a 2 dimensional filter screen. If it was a real issue they would have done a huge recall a long time ago. Oil Pan Leak: $400-$500 (cost to fix) Rod Bearing Failure: $2,000-$3,000 (cost to fix) Check Engine Light: The cost to fix varies; 1. Combine an FA24 short block with an FA20 upper oil pan, and well, you’re only left with a single bolt hole for your engine mounts. However, there is the problem of cost; a complete, used FA24 will run you around $7000-$8000. Oct 2, 2024 · Someone I talk with online put together a hybrid and it made a smidge more midrange between 5000-5800 but after that it lost 20whp over a complete FA24 on the same dyno by 6800. Was: $4,749. The first-gen BRZ and Toyota GT86 use the older 2. As far as I understand, all the headers/exhausts work with the FA24. Blue FA20 with boltons Red Hybrid FA20 head, FA24 block Green FA24 _____ Aug 27, 2023 · FA24 block on FA20 heads FA Series Factory 2. The power band is on/off at 4k all the way to 9k. Over time and with miles, the thin HG at that spot cannot withstand the strong exhaust gas pressure, and will eventually weaken, allowing exhaust gas to enter the cooling system. Welcome to the North American Subaru Impreza Owners Club: Tuesday October 24, 2023: Home Nov 24, 2024 · “The moment of insight occurs when a problem cannot be solved using solution methods suggested by prior experience and the problem solver suddenly realizes that the solution requires different solution methods. Case in point; you can’t buy connecting rod bearings for an FA24. Top Contributors this Month May 5, 2023 · Engine block material:aluminum; Engine reliability score:medium; The most common problems:carbon buildup on intake valves, weak phasers, the engine is afraid of overheating, software issues. The FA has been said to be a better engine it terms of tuning potential. This Block Is Our Non Closed Deck FA24DIT (T24R) Shortblock With Forged Internals. It was VERY extensive and costly to do. G. Ive been meaning to search around for more details on this project because I kind of have doubts it’s that simple. This seems like a similar result to a K24 swap with a lot less reconfiguration of the car. Vtor. This will be installed in my 2013 BRZ (using the 2015 wire harness, coils, sensors, etc) and run with an Ecutek tune. Today, we talk about the common Subaru 2. Over 6000rpm overload to the engine. ⭐2022 2023 TOYOTA GR86 2. Of course, the FB25 engine received new pistons, which brought down the compression ratio to 10:1. 0mm)or if that is really an issue at all. 29 USD or 4,835. 5L Forester, Legacy, Outback 2011-2019. Strictly because it has nicer new tech for tuning. Subaru 2. 8071 Commonwealth Ave. 4 Turbo engine can develop some problems over time. What it is: Excessive oil consumption is another common issue with the Subaru 2. You just don't hear much about them because nobody cares about the WRX anymore; they are sitting on lots and can't sell 5k+ under MSRP. So just about every problem has been worked out. Save Share Reply Quote Like Jan 2, 2024 · From the pictures on their FB for the FA24 shortblock swap it appears that the timing cover, upper oil pan & oil pan are used from the FA20 engine. Ich habe sehr erschwingliche Lösungen in Arbeit, sowohl für 17-20 1. Includes all typical OEM short block internals (Crank, pistons, rods, bearings, etc. They show a couple of pics of the FA24 block, no idea what, if anything is done with the heads to account for the 8. 147000 miles No problems at all with this engine and I read somewhere that someone got a FA24 short block and everything else from the FA20 bolted up to it and it made nearly the same power as an FA24. 5-1 quart overfill. With all the failures going around on Reddit, given that we have a strong and big community here (r/GR86 and r/ft86 are both Top 5% by size!), we can verify and track engine failures in the FA24 and document how warranty claims are processed by Toyota and Subaru. Sep 5, 2023 · Considering that FA24 is based on the FA20 (same block), I see no issue to overfill up to 0. Jun 12, 2024 · The FA20’s engine mounts connect to the engine using two bolt holes: one on the upper oil pan, and one on the block itself. 0L Turbo Powertrain Prime Motoring's FA24DIT 500+ whp build (stock block) - Page 5 - NASIOC Welcome to the North American Subaru Impreza Owners Club engine block components fa24 2. This ultimate "weekend racer" block is engineered to handle up to 1000 BHP and built to dominate in any setting. May 6, 2024 · The swaps I have been working on are dropping in a complete FA24 longblock, NOT a hybrid FA24 block with FA20 heads grafted onto it. The engine has an all aluminum head and block in order to keep weight and warm-up times low. (~$90 vs $350) Jul 26, 2020 · FA24 DIT Short Block Replacement. ” (Öllinger, et al. This seems like a fairly doable swap without a crazy amount of effort. wrx is the fa24 dit, brz is fa24. The parallel decking operation ensures that the distance from the centerline of the crankshaft to the deck of the block is identical on both banks of the boxer engine. 5 millimeters. I followed the instructions in the service manual on STIS but found a few necessary < JDM WRX, Forester, BRZ, FR-S FA20DIT, FB20A & FA24 Motors For Sale Please use this motor as long block with your intake & exhaust manifold. A new FA24 short block directly from my local Toyota dealer is listed for $4,388. . 5l high comp; fa20 2. walker 221 Sep 27, 2022 · 8 Problems With the Subaru 2. Sep 10, 2023 · FA24 is a far more modern engine, with lessons learned from the FA20. Simply put, the RTV gasket is a sealant used to create a bond between the oil pan and engine block. , 2008). 4-liter turbocharged Boxer is too new, and more data on the powerplant must be collected before it can be evaluated for reliability. I'm tired of opening Reddit to see yet another engine THere's a guy out here where I live who did an FA24 swap into his VA. 35 plus tax. 4L. 00 11% off. Aug 18, 2024 · Hello from South Korea Recently, GR86 engine blow is issue in here. Apr 22, 2024 · I'm looking for 2022+ Cylinder heads, I've also got a 2013 long block. This engine is one of the most reliable engines that Subaru has ever produced. In the big scheme of things the total $ difference is relatively minor but the HKS gaskets are like 4 times more expensive than stock. Feb 1, 2022 · It's plausible that some sensors will work as is and some could be switched over from the FA20 to make the new engine run on the only computer. The HKS is nice with the "fire ring" grommet design. Current Cars: 2024 Subaru BRZ Premium Build , 2024 GR Corolla Premium Build - 2005 4runner 4WD SR5 w/V8 - Toyota FJ40 Man I can't wait for FA24 shortblocks to come down in price. In this video, he shares the findings from months of testing the engine in the second generation BRZ and GR86. The FA24’s engine mounts connect to the upper oil pan. In the business world, you can have a broken product, a broken customer, or a broken brand name. Got the block from an Ascent, as I recall. Here are the top 5 problems in Subaru engines, along with some tips on how to prevent them: Apr 18, 2023 · Reliability on these FA24 engines is also unable to be compared to Honda's offerings that are 1-2 decades old at this point. 4 Turbo Engine. 2. 6:1 (Stock CR) Callies Forged H Beam Rods W/ ARP2000 Rod Bolts; King Performance Bearings IAG Performance Subaru Short Blocks & Internals for WRX & STI. Apart from those, there have not been any widespread reports of problems with the FA24 engine. However, like all engines, the 2. Jan 29, 2023 · Or wait for the IAG FA24 short block. Hence the problem. FA24 reverted back to using EJ wrist pin peek holes method. Jun 22, 2023 · The 2022+ WRX is having similar engine problems. So I guess light throttle she feels NA. 0 heads to a machine shop. My first mistake was purchasing an FA24 with a spun rod bearing in the first place. The Real Culprit: Subaru’s Design. May 3, 2024 · Rebuilding an FA24 short block has been a lesson in humility. As soon as i turn my wifi back on the phone restarts and clears the jb. It’s well documented on the internet forums, and even a class action investigation into the problem. 0L Turbo Powertrain If you have any problems with the registration process or your account login, please contact us. * As an Amazon Associate I earn from qualifying purchases. 0 heads, or you needed to send the 2. * Registered users of the site do not see these ads. The stock engine can easily handle anything the stock turbo can do. Stock FA24 head gasket is definitely MLS. Problem #3 Oil Consumption Issues. Constraint Satisfaction Problems §Standard search problems: §State is a “black box”: arbitrary data structure §Goal test can be any function over states §Successor function can also be anything §Constraint satisfaction problems (CSPs): §A special subset of search problems §State is defined by variables X i with values from a Sep 14, 2024 · The change to ensure stable electrical continuity may have fixed problems that are difficult to diagnose. But, he gets the benefit of the FA24's power ability, AND running an STI drivetrain swap. Regular maintenance and timely inspections can help identify and address this issue early. 4L H4 FA24 FLAT ENGINE MOTOR BLOCK ASSY 26K OEM LOT2505. Aug 2, 2020 · He wants to bore out/resleeve the FA20D block to 2. Expect problems and solutions for all 3 engines. walker 217 Nov 2, 2022 · RE: limitations of heads, etc. For Subaru, it was a new experience with direct fuel injection. Modern engines aren’t designed to be rebuilt, they’re designed to be purchased. Plan is to build using the FA24 short-block with FA20 heads, similar to the EJ20/25 hybrid builds done on the older WRX's. Generationen (die extrem einfach zu tauschen sind) als auch für 13-16 1. There was a tech bulletin, or whatever it’s called, on the engines but mine didn’t start burning until well after 100k miles. But prone to cracking. < JDM WRX, Forester, BRZ, FR-S FA20DIT, FB20A & FA24 Motors For Sale Please use this motor as long block with your intake & exhaust manifold. 5mile/h) high speed driving. 5 Gen 1 engine block cylinder wall between the pistons was designed too thin. Aug 27, 2023 · FA24 block on FA20 heads FA Series Factory 2. Cancellation Policy. 39 in) to 94 mm (3. Let’s explore some of the common problems with this engine and how to solve them. Getting more into EJ25 size the new FA24 is pulling 600whp on the stock block from the testing and tuning done on some Ascent engines after new WRX was revealed and thats WAY beyond a stock EJ and well into a built block EJ territory. Plus they don't have timing belt problems. Short blocks, Longs Blocks, Pistons, Rods, Cases, Gaskets, Hardware Sep 19, 2023 · I've seen a handful of posts inquiring about the difficulty of replacing spark plugs in the Gen 6 FA24 turbo engines, and since I tackled it last weekend, I thought I'd provide a brief writeup of my experience. 0mm to 86. 4-liter turbocharged engine in the Ascent family hauler. wrx has a different oil system cuz turbo-> 30% more oil scavenging than brz. 5L HIGH COMP short block is now available. There is another thread about using a fa24 block with FA20 heads in a hybrid configuration where some of this was discussed. The engine is build around an open-deck aluminum cylinder block with cast-in iron cylinder liners. I can only find the short block in parts system for the EU, which is 5,372. fa24 in wrx is different than the NA fa24 in the brz. Its construction features an aluminum alloy block and DOHC (Dual Overhead Camshaft) configuration, which helps reduce weight while improving thermal efficiency. You won’t run into engine problems sub 500 whp. As its predecessor, the FA24 utilizes the combined fuel injection system D-4S (port + direct injection) provided by Toyota. It is due to arrive November 15th. Buckling may cause between the cylinder head and sealing surface of the cylinder block due to applying increased surface pressure. com) Nov 20, 2023 · The emerging tableau is not simply one of data points but a vivid narrative of a boxer engine’s metamorphosis. Top Contributors this Month View All. Mar 15, 2019 · The current solutions are well developed (OEM short block, IAG forged block, used long block) but they are just different flavors of the same EJ257. Are there infos on how that engine will be mechanical different to the Turbocharged FA24 engine that subaru also has? Apr 5, 2023 · Killer B Motorsport 2022+ FA24 BRZ/GR86 Oil Retention Baffle Goal: Improve Oil Control in the Sump, to reduce the probability of oil starvation. buying an Edelbrock supercharger, though adapting the wiring harness, etc. I have very affordable solutions in the works for both 17-20 1st gens (which are extremely easy to swap) and 13-16 1st gens (which require a bit of work, but are still extremely straight forward as far as engine Oct 24, 2019 · It'd be awesome if the next STI gets an FA24 and a lot of FA20 parts just bolt on without a problem. 1 on 13 pro max, I get everything finished with the trollstore and Fugu15, add sileo. Blue FA20 with boltons Red Hybrid FA20 head, FA24 block Green FA24 _____ High-quality parts for your 2002-2023 EJ20, EJ25, FA20, FA20F, FA24 and FA24F Subaru engine. 0L Turbo Powertrain. 2 mm; Compression Ratio:11. 0l step3; rb26 3. In its heads spin dual overhead cams, driven by a timing chain rather than a belt, actuating 16 valves with Jul 5, 2023 · Long waited IAG FA24 built block Jump to Latest 8. 1614 posts · Joined 2022 Add to quote; Only show this user #5 Aug 27, 2023 · FA24 block on FA20 heads FA Series Factory 2. Key facts about the 2. Welcome to the North American Subaru Impreza Owners Club: Friday February 2, 2024: Home The FA24 engine in the new 2022 WRX has some true potential, most likely outcompeting the VA WRX by a long shot, Cobb recently released pro tuning software for the VB WRX, and most tuners are making between 390-410 wheel horsepower with the stock motor and stock turbo. 280 votes, 157 comments. Im runnin 15. [discussion] Yesterday I had someone help me with a problem that has since came back. Subaru engines are known for their reliability, but feature several recurring problems across various models and years of production. Se habla Español. For use with FB25 2. The temperature is held constant so that the second molecule on average has the same energy ( 6 energy blocks) as the first one; notice however that the total number of degrees of freedom and of energy blocks increases. Oil coolers are recommended because your engine will see less oil pressure drops on track, even with a recommended overfill of 0. , for a block swap, by all reports the FA20 heads can support a lot more flow / power, and the valve sizes are the same between it and the FA24 (though with a bit shorter intake valves - that could be because of an internal change in the heads, or to support higher lift). Aug 1, 2024 · Looks like IAG now has an FA24 block for the VB WRX coming soon. When car people sink their teeth into a problem, they dig in. Nov 28, 2024 · Hey everyone, I drive drove a 2018 FA20 WRX, had stage 2 IAG block, and after about 50k miles on this block, pistons turned out to be damaged, with minor scratches to the sleeves. This FA24F engine evolution becomes all the more gripping when one considers the nuanced calibration that goes into optimizing these engines for various vehicle applications—this is where Subaru’s prowess truly shines through. While they still ain't cheap, they're getting to be in the range of E. To comprehend the issue at hand, let’s dive into the role of the RTV gasket. FA24 Sump Design: The FA24’s engine design uses a 2-piece sump design. Opens in a new window or tab. Subaru beefed up the FA24's engine block and Top 5 Problems With Subaru Engines. Blue FA20 with boltons Red Hybrid FA20 head, FA24 block Green FA24 _____ Jun 28, 2023 · For the 2022 model year, the BRZ and GR86 got a new 2. Jul 4, 2022 · The reason someone might want to do a swap would be because the FA24 has more potential for high horsepower due to the extra displacement that would be more difficult with the FA20, because the FA24 will have more turbo response, because the FA24 has more reliability at a given horsepower, because of better heat management for a given horsepower, or because it may be cheaper. 3 *NOTE; Bore:dia. New OEM Genuine Toyota GR86 FA24 Factory Engine Short Block SU003-10633. Welcome to the North American Subaru Impreza Owners Club: Friday February 2, 2024: Home Jan 2, 2024 · From the pictures on their FB for the FA24 shortblock swap it appears that the timing cover, upper oil pan & oil pan are used from the FA20 engine. Its not a 2 Liter engine with bigger cylinders, its a complete new design. New OEM Factory Part. or Sep 26, 2024 · Someone I talk with online put together a hybrid and it made a smidge more midrange between 5000-5800 but after that it lost 20whp over a complete FA24 on the same dyno by 6800. Id wager head studs alone on stock gaskets would be fine on stock block. The FA24D is the latest naturally aspirated four-cylinder boxer engine from the FA family, which replaced the 2. Aug 16, 2023 · FA24 block on FA20 heads FA Series Factory 2. These problems are often identified by a ticking or grinding engine sound. For this reason, the early years of production were quite rough. Understanding the Subaru FA24F RTV Gasket Problem. The thickness of the cylinder walls is only 3. I love how it drives. Welcome to the North American Subaru Impreza Owners Club: Saturday October 7, 2023: Home No idea. In my understanding the new 2. Perhaps the highest-profile case of engine failure involved an autocrosser, Arkansas-based Blake Alvarado. brz has no turbo to worry about oil. I never saw this Dec 6, 2022 · The FA24 2. Genuine Toyota & Scion Parts. Apr 30, 2025 · FA24 H4 2. The IAG 1000 FA24 Short Block features +2mm IAG Spec H-Beam forged connecting rods, IAG The FB25 (or FB25B) is based on the FB20 aluminum cylinder block with cast iron sleeves. May 6, 2024 · Die Swaps, an denen ich gearbeitet habe, sind das Einsetzen eines kompletten FA24-Longblocks, NICHT eines Hybrid-FA24-Blocks mit aufgesetzten FA20-Köpfen. The EJ engine block would have been designed when an i386 was running the FEA. We don't even know if it's related to oiling and I still don't believe there's a widespread problem with engine failures. 5JZ, which is a 1JZ top on a 2JZ block—same idea—FA20D top on a FA24F block. Mikey botti lifted the heads after raising the rev limiter all way up to 7800 I believe which is 1600 more than stock! Nov 3, 2022 · RE: limitations of heads, etc. 52 EUR (incl 21% local VAT) based on the current exchange rate. I kinda already like the FA20 in my WRX more than the EJ. I can find his IG if you want to hit him up. Hopefully this means the FA24D for BRZ/GR86 is coming soon. This kit allows you to enjoy the stroker kit more easily. cardoc 248 Replies. Plus the aftermarket is huge. 4L turbo engine. Buena Park, CA 90621 Nov 12, 2024 · The Toyota GR86 and Subaru BRZ boxer engine drama continues. As alluded to in the study mentioned, a mental set is only a problem if it fails to solve a present issue. [ 13 ] New FA24 2. Without going off on too much of a tangent, it would make sense to me for Subaru to just stop offering the FA20 in the US and only use the FA24 for turbocharged applications. Nov 5, 2021 · Ordered a brand new FA24 short-block once the part numbers were published. Oct 12, 2023 · The swaps I have been working on are dropping in a complete FA24 longblock, NOT a hybrid FA24 block with FA20 heads grafted onto it. Feb 16, 2023 · The bad (sort of) news is that it seems like the best route will be to pick up a complete FA24 engine including manifold, rather than just a short block, so cost will obviously be more. This is a short list of common problems and some disadvantages of the FA20 engine: At the start, many owners complained about rough idle and shakes at low RPM. Apparently the FA24 is waaay better for tuning tho. After more than one viral example of the horizontally opposed four-cylinders going boom, there’s now a class action lawsuit saying All correct information. Jun 20, 2023 · FA: FA20 utilizes the lamp chop shape con rods, so we dont need to connect the con rods and pistons via writ pins peek holes. sales@outfrontmotorsports. In the EJ world, the EJ25 block with EJ20 heads was referred to as a hybrid build. 0-liter FA20 engine, the cylinder bore has been increased from 86 mm (3. My Infiniti G35 (VQ35DE) burns 4qts in 4k miles. Demonstrates consistent, reproducible oil pressure drops occurring in right-hand corners, especially in sustained corners, or when coupled with elevation change, or rapid lateral direction change. New FA24 2. 4 Liter NA boxer engine FA24. This can lead to low May 19, 2024 · Likely the first FA2/4 hybrid incoming Engine Swaps Feb 21, 2018 · The FA24 in the ascent is tuned specifically for more torque and towing capacity, while also yielding good fuel economy despite the ascents size and weight. com. 2l; g16e 1. Jul 18, 2020 · It was a good move because the new FA24 But Subaru had to beef up the engine block and internals to handle the increase in horsepower. 4 turbo engine problems and how much it will cost to repair them. There's been one or two cases of people who are "street driving" and having engine failures. nkfnf nqalyf bhl dimoc znlhdc azv zeah hrzmg swsbsdh mxr