Fa24 vs fa20 reddit This sub-reddit is dedicated to everything related to BMW vehicles, tuning, racing, No idea. It appears the fa20 experiences noticeably less severe oil starvation compared to the new short drops shown in the video in the evidence section. Not what you want on track. 128K subscribers in the WRX community. Plus they don't have timing belt problems. From a 5 mph roll, the s2000 will lose against the 2nd gen twins due to its torque deficiency as seen in that SG video. FA20 Exhaust Experience: GrimmSpeed vs Invidia R400 vs AWE Track WRX If anyone else is an anxious shopper like me, I spent hours researching info on exhausts and wanted to write this up to help anyone else in the same position. Ask any questions regarding the fa20 and fa24 platform. 5L V6) Looking at buying my first brand new car. Unlike traditional currencies such as dollars, bitcoins are issued and managed without any central authority whatsoever: there is no government, company, or bank in charge of Bitcoin. It definitely would cannibalize sales. Has I’d consider swapping my fa20 for an fa24 if it blows down the road. 500-600+ is where you worry about the block going boom. There's only so much you can do with the FA20/FA24 and going 400HP with it is unrealistic imo. EJ ceiling on stock bottom end is not very high and any high hp EJs have fully built blocks. Fact is the FA20 was weak sauce until headers and remapped. output the higher your risk of failure is, and there's always going to be outliers (i. 4L engine with a turbocharger, reaching 271 hp. fa20 cant handle power, also the cvt starts to leak. I’d love to be able to correlate manufacturer’s data of aeration vs on-track oil pressure of different brands, for example, Motul 8500 vs. The latter EJ engines started having issues across the board with ringlands, spun bearings, etc. The EJ engine block would have been designed when an i386 was running the FEA. Found someone with plenty of experience with the FA20 when I needed my 21' tuned. /r/WRX is a place for Subaru fanatics to show off their rides, discuss modifications, mechanical issues FA24 In-Depth Look GR86 General Topics (2nd Gen 2022+ Toyota 86) follow ft86club on our blog, twitter or facebook. Or check it out in the app stores GR86 Stock vs Baffled Oil Pan Comparison (spoiler: still issues with turning right over crests) FA24 oil pressure issues in BRZ View community ranking In the Top 1% of largest communities on Reddit. Although the K24 in the 9th gen has a couple issues, like no exhaust VTEC, it is still a superior engine than my FA20 I feel. The bmw b58 in the Supra makes nearly double the power compared to the Subaru FA24. I believe the chassis code for the hatch you want is GH, the 2015-2021 WRX is VA, Welcome to our community - the home of Mercedes-Benz on Reddit! We are a passionate group of fans who come together to share news, information, The K20 in the 8th gen I feel is still a superior engine to the FA20, albeit not significantly. I just EJ’s have critical fueling and timing needs, FA20’s do well with tuning but don’t like more boost without risking bending rods because of their offset rod design The reality is somewhere in between but look after them and the engines are fine but start turning up the wick and beating on them both engines will bite you The (un)official home of #teampixel and the #madebygoogle lineup on Reddit. Get support, learn new information, and hang out in the subreddit dedicated to Pixel, Nest, Chromecast, the Assistant, and a few more things from Google. So many people watched that video, and majority of the people now spread misinformation making it seem like vs stock headers you're going to be losing 15-30hp. so if it's between a built FA20 and a stock FA24 then the answer is built FA24 haha, Prime Motoring has only mentioned that Subaru improved upon the FA20's weak areas like the rods. FA20 has a pretty low ceiling as well with the additional complications of direct injection. 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. That being said, the fact that you want to take on the project is really impressive, and I hope you hit your power goal. To address your initial weakness of the FA20 - the connecting rods really aren't that weak. 1L stroker kit for the FA20, which increased stroke to 90mm, but maintained the 86mm bore. The FA20 is a square engine (86mm bore & 86mm stroke). Car was pushing around 700 to the wheels, and still didn’t have bottom end issues. Or I'm interested in a comparison between this and the new FA24 as a swap to the gen 1 also. Open Here’s another one to settle a Reddit debate: how much power does a quality intake (like the GrimmSpeed) Hi, I am a 2023 BRZ owner. . The FA24 has been around before the VB WRX. If you want more power while staying in the same realm of the fa20, you could put an fa24. Or check it out in The FA24 is already making numbers and proving to be a 4G63 - Iron block, closed deck. 4, though relatively new, is an improved version of the FA20, which in itself has sedans, SUVs, hatchbacks, motor racing, safety etc here on reddit. 2015+ with the FA20 and the 2022+ with the FA24 are much more fuel efficient than anything Agreed. They would be the same and it appears that the only internal difference in the short block is the pistons for the lower CR. The 4A is a slightly oversquare engine and the FA20 is a perfectly square engine, the 4A is also a lot smaller engine and since Takumi’s engine is a 20V and the FA20 is a 16V, so Would I feel a noticeable difference behind the wheel between your OTS stage 2 and an etune if my only parts are a Cobb intake, Cobb turbo back, IAG AOS, and I only run 93 octane? My car is a ‘17 WRX Premium with 30k miles. If you have a gauge which is again also highly recommended, you want to aim for about 30 PSI idle and 65 to 70 wide open when the car is fully warmed up. The FA24 is oversquare engine (94mm bore & 86mm stroke). Very interesting read, worth the time. This sub-reddit is dedicated to everything related to BMW vehicles, tuning, racing, So just going off the few options I saw, the simplest swap would be a built fa20 of course. If wanting to go into different swaps I’d say a k24 swap would probably make for a great daily. 35 plus tax. Add: all my own maintenance other than the clutch about 70k ago or Get the Reddit app Scan this QR code to download the app now. N26 alone ? The WRX limited is practically the same price as a base STI. FA20 wrxs were reliable 300-400whp and they have the same trans, but only time will tell. EJ, FA20, & FA24 - Aluminum block, essentially an open How much boost can the FA24 handle? 5:1, while the block is probably the same, but pistons and head are probably different to make up the compression ratio difference The head and manifold are different for sure same as the FA20 Reply reply More replies. Or check it out in the app stores &nbsp; &nbsp; TOPICS The word is the FA20 will still be used in the WRX, (Although if they new STI has the fa24 motor It might be tempting to lol) We're Reddit's central hub for vehicle-related discussion, industry news, reviews, projects, DIY guides, advice, stories, and more. Valheim; Genshin Impact; Minecraft; FA24 Toyota GR86 & Subaru BRZ | Harrop TVS1320 Supercharged Tech Review Share Add a Comment. It’s also (according to Zach from CSG) significantly easier to manage fuel pressure when using a factory FA20 fuel pump, compared with trying to manage the FA24’s high-pressure fuel pump with an FA20 ECU. The chassis codes are different. I had a neighbor 3 doors down whose FA20 developed rod knock, still don't know why. Also maybe look into the fa24 rods as they handle quite a bit of power and are much cheaper. First thing to think about when buying a car now. Strictly because it has nicer new tech for tuning. 0 gets 23/31 mpg. It seems the engine is derived more from the N/A FA20 than the Turbo FA24. Internet Culture (Viral) the FA24 has different mounting points, Get the Reddit app Scan this QR code to download the app now. New comments cannot be posted. 7 vs 5. Torque output is identical, while horsepower is only increased by 3. Although momentarily, the fa20 on stock tune would spike to 22 psi at < 3k rpm which was basically the perfect recipe for knock if conditions arent PERFECT, which ultimately exposed this motors weakness, the connecting rods. Or Is there even anything unique about the WRX fa24 vs previous ones? He’s talking about actual FA24 swaps and not FA20 swaps. +3 mph difference in the 1/4 is still pretty big when you start looking at tracks like Road Atlanta, VIR full, Sebring, etc. Or check it out in the app stores &nbsp; &nbsp; TOPICS. Tuning, etune process, parts etc Locked post. The frequency of your oil changes will far outweigh the differences between any brand / blend. Same difference as EJ205 to EJ257, you’ll gain 70hp. I think this will definitely reduce the life time of the FA24, but it’s absolutely more stout than the FA20 So I'm just wondering if swapping the fa24 would actually be better than swapping a EJ into your WRX. 5 that matched the 2. The increased displacement allows for better torque than the FA20 and better consistency throughout the rev Many mistakenly believe the BRZ and WRX versions of the FA20 to be similar with the exception of compression ratio and the presence of a turbocharger. The power band is on/off at 4k all the way to 9k. New For those not wanting to use Reddit anymore discuss Guild Wars 2 on alternative platforms Guild Wars 2 Discord: I found a decent deal on an oem fa24 short block so I’m curious if anyone out there has done the swap or looked into the possibility. I'm tired of opening Reddit to see yet another engine blown up all the time. It's easier and more cost effective to just get an IAG short block and bore out the FA20. The Supra has two extra cylinders and is heavier. To car guys it seems like a big difference. EGR/TGV deletes and AOS can help remedy the carbon build up, new conrods to prevent them being thrown out the side of Get the Reddit app Scan this QR code to download the app now. Due to the recent influx of posts about them to this sub, I put together an in depth writeup on the topic in addition to the base level explanation I gave in a comment here a while back. 0L and the 2. At the same time it will likely show less actual volume of flow which is just as bad as low pressure. 4L is just bored to 94mm. If Subaru capped it like they did the FA20dit, the FA24 will be a beast. Any automobile that moves on four wheels can be . The HKS is nice with the "fire ring" grommet design. I also got an offer to intern in the Fall next semester. Or check it out in the app stores &nbsp; &nbsp; TOPICS This is specifically important for direct injection motors like the FA20 otherwise you'll notice a decrease in performance and the car will start running rough The NA FA20/FA24's do. I looked this up when buying mine and couldn't find any concrete information on the Ascent and Outback XT forums regarding the FA24 and carbon buildup. This seems like a similar result to a Stock FA24 head gasket is definitely MLS. If fancy $15 / quart oil it makes you feel better it's your money though. Average BRZ gen 2 seems to pull about 215 whp. User Name: Remember Me? Password worth the time. If the aftermarket can solve the fueling issues of the fa20, it will be a better platform in the future. Id wager head studs alone on stock gaskets would be fine on stock block. 0 heads to a machine shop. Hopefully the FA24 will also respond well to a few Agreed, if im not mistaken I heard the rods are supposed to be stronger in the FA24 but to what degree who knows. But more than anything the sound they make is glorious and the FA20 sounds so similar to a 4AGE with them, it makes me wonder why it wasn’t a more popular item developed for these engines? The only kits on the market for the 86/BRZ are the SARD(pictured in the video)and GREDDY kits and those are for the FA20, I assume they’d bolt up the same on the FA24 but The weak part on the fa20DIT is the rods and it seems like people are making good power on the fa24. Soooo disappointing, so my fully built 19 wrx put down 340whp with the BL58 and 334whp with the fp blue. which have long straights. So I guess light throttle she feels NA. The new WRX was revealed yesterday. Because of the chamber differences between the two engines, for the setup to work properly you needed special pistons put in the 2. I’m sure it’ll become more widespread in a few years when companies make kits/parts to allow for a swap. Learning the difference between the FA24 in those cars vs the one in the GR86/BRZ might be a good starting point. wrx is the fa24 dit, brz is fa24. The FA24 is essentially just a bored out FA20 with dual injectors (for carbon build up). 3 at 98). The FA24 has the same external dimensions as the FA20. Or Fa20 fp blue vs BL58xr . I called around and heard that the IAG pre-builts were pretty bulletproof, so I called IAG, asked them a bunch of questions, they were very helpful and me feel much more comfortable ordering an FA20 short block. The EJ engine block would One of the biggest gripes with the new FA24 is that it is not anymore powerful than its predecessor, and that complaint does have some merit. Bottom line: Subaru fucked up. Remember brz has a different red line, powerband, compression rario, and isnt boosted. No way an FA20 lasts more than half a pull at 600whp. FA20 vs FA24 Engine, Exhaust, Transmission. Or check it out in the app stores But I know there's ITBs for the FA20 available, so I'm wondering if the intake manifold from an FA20 can be placed on an FA24, and if so, that would mean the ITBs for the FA20 can be used on the FA24, right? Or will So I posted this to reddit about 2 months ago since I'm more active there, Using Lotus Engineering’s 1D engine simulation software, I modeled the FA20DIT found in the 2015+ WRX. 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. This is just Not many people put forged parts in stock block so its hard to say, swapping everything over to a built block would definitely be easier and safer, but may be more expensive if youre doing the work. Taking these stats into consideration, we can expect the STi version to reach between 300 and 350 hp (maybe more, definitely not less as Fa24 is for sure beefier than the fa20 and the EJs. How can there be such a small difference with a good size turbo upgrade? One of the reasons for varying results vs s2000 is how the pulls were done. I just wouldn't want my car to be used to find the limit. Reply reply subaru released the FA24 with a low rev limit that some tuners have raised. That means that the engine mounts and accessory locations are different on the FA20 and FA24. 4L NA boxer has so many problems but I don’t think it does, the blown ones are tracked or not maintained properly. I would expect the FA24 to be the same. anyone notice that the oil pick up tube in the fa24 is made of plastic where as the fa20 oil pick is made of aluminium (I think). I hadn’t realized I feel like I lucked out. Highlander XLE (3. Funny thing is, the FA has thinner bearings. Question for my current VA FA20 bros/sis owners. 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. I kinda already like the FA20 in my WRX more than the EJ. I mentioned this earlier, but the f22c1 is the “torquier” of the two s2000 engines and it still feels pretty anemic below the vtec cross vs the fa24. Any automobile that moves on four wheels can be discussed here. Use the FA24 head gaskets and torque specs. Every single technical brief I've seen on it seems to indicate it's incredibly detuned from the factory. They believe all AWD is the same. IMO, neither are great motors in regards to modifications. A new FA24 short block directly from my local Toyota dealer is listed for $4,388. There's absolutely no reason to pay $10+ / quart for oil for a sports sedan even if it sees an occasional track day. Fa24 vs The wrx right now can push pretty high hp out of the fa24dit with some small upgrades and I was wondering if the fa24 is basically the same thing could I theoretically by the parts from the wrx and put it on a gr86 I know there may be a couple View community ranking In the Top 1% of largest communities on Reddit. Do you guys think that intake, headers, bolt-on exhaust on E85 tune will give ~250 wheel horses? I'm looking at the peak The three issues I hear about the FA20DIT are: Direct injection causing intake valve carbon build up, weak conrods, and rev hang. Time will tell if Subaru can succeed with this. By the published numbers (Miata, GR86), the ND2 is faster to 60 (5. Last edited by Tatsu333; 11-08-2021 at 12:17 PM. The FA20 doesn't. If the FA24 was designed solely for more torque then Subaru would have increased the stroke instead of the bore. In the big scheme of things the total $ difference is relatively BRZ/GR86 FA24 Oil Pressure Loss Demonstration In this video, he shares the findings from months of testing the engine in the second generation BRZ and GR86. Reddit iOS Reddit Android Reddit Premium About Reddit Advertise Blog Careers Press. Fa24 plastic oil pick up tube . FA20 WRX owners, what are some conservative mods you have done to increase the horsepower that don't risk the reliability of the engine? This thread is archived New comments cannot be posted and votes cannot be cast Related Get the Reddit app Scan this QR code to download the app now. You can get 70hp a lot cheaper than engine swapping it out of what will be a brand new car One of the biggest issues with the FA20 (besides revhang) is the carbon build up caused by Direct Injection. (and aren't anywhere near as knock limited on lower octane fuel) 2 - they don't adhere to a Japanese gentleman's agreement from 2 decades ago. I’ve owned 9 USED Subarus in my 2 decades of driving; Get the Reddit app Scan this QR code to download the app now. 4 is similar, FB25 vs FA24 vs FA20 vs FB20. Mainly the recent ones, why do people always say the EJ25’s will blow head gaskets and are crap engines and why do people say the EJ20 isn’t any better? Get the Reddit app Scan this QR code to download the app now. Realistically, This sub-reddit is dedicated to everything related to BMW vehicles, tuning, racing, and more. What they do know, however, is power, torque, and 4- versus 6-cylinders. The Following User Says Thank You to WRX vs STI (FA20 vs EJ20 vs EJ25) I want some info on Subaru’s WRX and STI engines. The FA20 was forced to make power, knock prone, finicky, and had a poorer bearing/rod design. It has an FA24F 2. This seems like a fairly doable swap without a crazy amount of effort. You could just swap the shortblock, have your heads machined to open the combustion chamber to match the FA 24 heads. In my opinion the fa20 is a dead platform. Best of luck! EDIT: grammar I think 300-400whp is definitely reliable on the fa24 if you treat it right and maintain it well. The VB is on the SGP while the VA is a modified GJ/GP Impreza platform. And addressing the oiling issue which honestly such an easy fix compared to the FA24. If the oil temperature was much higher, the oil pressure would be lower in all driving scenarios and even lower in right hand corners. For those unfamiliar with 1D simulation, the product page for GT-POWER The fa24 has been used by Subaru for 6 years. Once you get to 450-500+ that’s where things get sketchy and the transmission is the big problem. FA20 . From what I hear, FA24 is just bored up FA24, so I'm Why are you still holding on to your FA20, even after seeing all the improvements of the FA24 from owners/tuners? View community ranking In the Top 1% of largest communities on Reddit. This video simply highlights a design limitation of the FA24. Gaming. The FA20 was for example 55 kg. 8) and the GR is faster in the 1/4 mile (14. Reply reply If you're looking for extreme power, you either would want an STI with the EJ or a 2022+ VB WRX with the FA24 At the end of the day, these cars weren't designed for extreme power, they were designed for insane handling. To the layman, they'll just see a turbo coupe and turbo four door. 4L, but he realized the cost of sleeves and tooling is more expensive than sourcing a What's cool too is the fact that's its got the same bolt pattern (at least I'm pretty sure) to bolt up to both STi and WRX transmissions so you could go pretty 'budget' on your build with say a FA24 swapped WRX, heck just put some FA24 rods in your blown up FA20 and you've got a much stronger bottom end. Would this kit fit the FA24? From what I know the bottom end is almost identical between the 2. Every cast engine part is a great expense and there would be no need to change the block design (if such a change was necessary, it's almost a guarantee that these cars would have either gotten a different engine or not been built), so if You’re definitely free to swap it, but it’ll likely take custom fabrication and unforeseen hiccups. With all the failures going around on Reddit, given that we have a strong and big community here (r/GR86 is 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. Or check it out in the app stores Does the intake actually add power on the FA24? I think it was mostly just for noise on the FA20. Main goal was towing capacity and low end torque. That’s a huge difference, Poll: Which WRX will hold value better over time - FA20 or FA24? I was curious what the community thinks about these two engines and cars' design/styling, and if either will hold value (over time) as we shift to hybrid, This sub-reddit is dedicated to everything related to BMW vehicles, tuning, racing, and more. Element Tuning did some work with the og FA20 in gen 1 to 9k but I have never seen anyone actually do that build. However my hope would be that they were kind enough to give us the boost ready rods. FWIW, Prime Motoring did my tuning, and they've been R&Ding on the FA24 before the will likely be a fairly reliable engine. The march of progress is more turbid for small manufacturers like Subaru. Welcome to the North American Subaru Impreza Owners Club: Monday January 20, 2025: Home: Forums: Images: WikiNASIOC: Products I'm going to assume Subaru beefed up the connecting rods. In the EJ world, the EJ25 block with EJ20 heads was referred to as a hybrid build. He wants to bore out/resleeve the FA20D block to 2. Lol. The FA24 in the new VB WRX vs the FA24 in the BRZ/GR86 . I don't know about you guys, but I enjoy (when nobody else is around) aggressively braking and accelerating out of fa24 in wrx is different than the NA fa24 in the brz. In addition to the notorious intermediate motor shaft issues, early Porsche mass-produced water-cooled flat-6s (not the Metzger engines) had problems with oil starvation. The rods are not forged, they are the same Is it theoretically possible to create an FA24 engine ‘equivalent’ by boring out the cylinder diameter of a FA20 engine from 86mm’s to 94mm’s? If the main / only differences between the Issue of building a modern 6-cylinder boxer engine is that it'll be too complex and too heavy. Tomei UEL tuned performs about on par what youd get from OEM Headers with a tune. Granted, each one has an inferior AWD system, but the average SUV consumer doesn't know that. Cost me roughly 6500-7000 at the dealer to get a new motor in when mine blew (With a tune) at 180,000km (highway mileage from working out of town). The worst case is that we have the exact same connecting rods that were used in the 1st gen cars. The FA24 is rated at 230bhp at 7,000 rpm and 184lb-ft at 3700 rpm, which is fitted to the new GR86 and BRZ. Why It also seems like the FA24 is proving to be a great new engine from the short time it's had in the Outback and I've seen some interesting info on the rods being much beefier in the FA24 compared to what's in the FA20. 0 heads, or you needed to send the 2. Peak torque in 22 is 250, but hits at 2. Share Sort by: Best. Ok, so there’s already the well known benefits of the STI drivetrain (robustness, direct-link shifter, DCCD, front/rear LSDs), but I’ve noticed that no one talks about how awesome this transmission is with the FA20 from a daily driving standpoint, or why it would’ve been even better in the VB with all the extra STI goodies. FA24 engine is better but I don’t want to say the STI will build on it much. I'd imagine an FA24 that's tuned for premium is capable of quite a bit more. The fa20 out of the BRZ can handle around 600whp with forged internals but they have a different compression ratio than the fa20DIT in the wrx. Overall, there aren't wide reports of any major 2015-2016 engine issues yet, which is a good sign. Or check it out Are the engine mount points different in the GR to the GT? If they are similar, Im curious if the FA24 can be mated to the GT's transmission. That engine was the clear choice for the 86/BRZ platform imo yet Toyota and Subaru chose the Boxer instead. I think the FA24 is higher compression vs the prev gen NA FA20 though, so I’d temper the expectations of how much more boost the motor can handle. Personally it’s hard to believe a little 2. Thanks man! View community ranking In the Top 5% of largest communities on Reddit. Straight from Subaru, the FA24 was designed for higher torque not horsepower. I want to If you search EJ25 vs FA20 you'll find a bunch of threads on the topic. Scavenge pumps make a real difference in horizontally opposed engines. Much less concerning than the FA24 imo. Regardless if it's a fa20 or an fa24. I don't understand how, from technical perspective. I also see no work on the fa24 doing so. Lugging the engine on the FA20 promotes ringland issue ultimately causing rod knock. I’m glad you brought up the issue of aeration, since I’ve also read some of that research. Bikes related discussion is not allowed here The FA24 appears stronger than the FA20. The FA24 in the VB is a much better engine, r/Stunfisk is your reddit source for news, analyses, and competitive discussion for Pokémon VGC, Smogon, and all other battle formats. Actually the expectation would be that the FA24 would give less, not more, power with the ITB designed for the FA20. Engines are blowing because of it. As far as I understand, all the headers/exhausts work with the FA24. In the aftermarket world there is a very big difference between a high pressure pump and a high volume pump. FA24 in VA sti . Also, the rods are not any heavier than before but are supposedly stronger. I mean the 2ZZGE already made 180/190 hp at 1. The FA24 gets oil starvation in right hand turns. Yeah that's compared to a WRX with one of the best EL Headers available for the FA20 aka KillerB. Redpill me on how the FA20 is better than the EJ25 . Top. Or your thoughts/comparison of the FA24 vs K24 swap for this chassis? but although it has a higher CoG it’s like 150lbs of weight savings over the the stock setup FA20. You'd be pushing the rotating components to beyond some of the highest limits in any engine. 37% improvement in whp is pretty realistic to do on a mild to moderate supercharge job. While the ITBs designed and tested for the FA20 may give good throttle respons and midrange torque for that engine without sacrificing high rev power, the same may not be true for the FA24, since it is bigger. 4 at 95 vs 14. Bolting on a turbo or supercharger is much easier/cheaper/reliable than putting a completely different engine in. We would like to show you a description here but the site won’t allow us. Also, the stock FA is not capable of holding more power than an EJ. Members Online • Perhaps the CVT was cheaper/easier since it's already mated to the FA24 in the Outback & Ascent. The FA20 is incredibly reliable if you take care of it/do some basic QoL mods. The FA is not more reliable. failures at stock power level vs reliable at 450whp). the home of Mercedes-Benz on Reddit! We are a passionate group of fans who come together to share Sporty turbo four cylinder Subaru s making almost the same power. Reply BigBadBored It's a love/hate thing Get the Reddit app Scan this QR code to download the app now. It's fairly well documented that the FA20 has carbon build up issues, but the FA24 is a whole different animal. This sub has no connection to the Discord server, Tools - YNAB + Revolut vs. Or check it out in the app stores (FA24) vs. In the US, the FA24 makes similar HP and more torque running regular fuel compared to the FA20s premium. I didn't want stupid issues that the EJ has. As most of you are well aware, Tomei USA released their unequal length headers for the 2015+ WRX. Rods are beefy compared to the fa20. My guess is that extended 700 whp applications may eventually break something, but the rods on the fa24 are huge compared to ours. Obviously the stock trans might not make it (STI 6 speed needed there), but I think if you fix the main weak point (rods) the motor should be able to make quite a bit more power safely. FA24 pistons definitely suggest larger valves on the latter judging by the size of the valve reliefs cut into the tops of the pistons _____ 2020 BRZ Sport Tech RS. "In fact, Subaru cast the rods as a full assembly, scored the rod, then used an impact to break apart the cap" - Revvolution I think one of the larger downsides to View community ranking In the Top 1% of largest communities on Reddit. I think that makes the most sense: rather than spending money for something that "might" happen, spend money when it happens and upgrade as well. If the 2. Additionally, the FA20 appears to be more reliable. I'd only go IAG or similar if I was aiming for some obscene power number, and the FA24 wasn't available in a crate or auction. So the TL;DR version of this -- 500whp on an FA20 is doable -- there's a guy in TX running around with a 600 whp FA20-- though long term may be dicey. e. The D4S fuel system on the fa20/fa24 in the BRZ/FRS/86 combines direct and port injection. In my country, the cost of swapping to a FA24 is about the same as getting a turbo + supporting mods that should reach around 250-270 hp. Using Lotus Engineering’s 1D engine simulation software, I modeled the FA20DIT found in the Get the Reddit app Scan this QR code to download the app now. Now the FA24 is better than the FA20 in almost every aspect except redline. But since both motors are unreliable in stock form you're going to have to buy an aftermarket motor anyway, so it's smarter to go with the EJ because it's easier, generally cheaper, and the aftermarket is ten times a large. The fa24 has a much larger ring gap, larger pistons, and better rod bearings. Not under warranty for reasons. In reality, the differences are vast including the block, heads, FA24 is a far more modern engine, with lessons learned from the FA20. My FA20 is quicker than a stock STI at practically no cost on a conservative tune. The FA24 is getting close to EA888 in I feel like an FA20 with just upgraded conrods would be pretty comparable to this. A bone stock STI on the factory tune will do 250-270, and the torque will get up to 270 by 3. 5 RPM. Sadly the FA24 is a Subaru at the end of the day and it needs to be babied. They are based on the same engine yes, but do not have all the same parts. sedans, SUVs, hatchbacks, motor racing etc here on reddit. 38. FA24 is a far more modern engine, with lessons learned from the FA20. pretty much capped at 300hp safely. With that said, the general consensus is the FA20's Are experiencing much less failures than the FA24's. Drive train and doors are the only difference. View community ranking In the Top 1% of largest communities on Reddit. There is data on the reliability of the motor, IAG also did a comprehensive breakdown of of the design and properties of the alloys used vs previous Subaru engines like the fa20 and ej25. Mains are pinned on the fa series engines unlike ejs which have case halves proned to flexing around. Get the Reddit app Scan this QR code to download the app now. I know people watch temperatures but it doesn't directly reflect the PSI. Best. I don’t think he is doing a swap. Beyond From what i've read the block is the same as the fa20 but bored and stroked with different Most of the differences between brands are marginal / marketing. However we don’t have any long sweepers in this body of Your Reddit home for all things related to the Honda CR-V! Curious where that The 2015-2021 WRX has the FA20 and the 2022+ WRX gets the FA24. I’m not sure how others have fared but I love my car and engine for now. wrx has a different oil system cuz turbo-> 30% more oil scavenging than brz. It’s hard to find aeration specs on different brands of oil. Terms & Policies After SARD and GReddy's ITB kits for the FA20, are there any plans for an ITB kit for the FA24? We obviously don't know how reliable the VB's FA24 will be long-term yet, but tuners are finding that Subaru definitely made it stronger compared to the FA20. Expect problems and solutions for all 3 engines. The FA20 is actually reliable assuming you don't lug the engine. The FA24 DIT in depth News & Rumors. Or check it out in the app stores FA20 vs EJ when it comes to really high horsepower . So before you go assuming things, I suggest you check out your valves with a The pics posted of the FA20 vs. If you can get the 2nd gen with the FA24, it has a superior engine to both. 8L and revved to 8,500rpm stock. heavier than the older EJ20 and the weight of Is it theoretically possible to create an FA24 engine ‘equivalent’ by boring out the cylinder diameter of a FA20 engine from 86mm’s to 94mm’s? If the main / only differences between the two engines are an increased bore diameter, fully aluminum head, and Man I can't wait for FA24 shortblocks to come down in price. It’s why we see FA24 swaps into the SGP-based Crosstrek already but not the VA WRX. I’m leaning towards the swap as my FA20 already has 110,000 km and getting a brand new engine with the NA reliability and the cheaper maintenance is extremely tempting. Probably the opposite. “Numbers aren’t everything” except the only difference between these two cars are the numbers (aside from the fact differentials and transmission and stuff that makes an STI an STI). I must admit that my stage 2 Fa20DIT has taken 3 years and 50+k miles of abuse and still runs great. Torque spike is the bigger issue. with the massive weight savings has given us a better balanced I am also curious of the FA24dit full potential. Bitcoin is the currency of the Internet: a distributed, worldwide, decentralized digital money. Though I am worried they'll keep the MGT22 turbo which would be woefully undersized for the FA24. I’ve narrowed it down between the 2022 Ascent Onyx and 2022 Toyota Highlander XLE. I came from a ‘21 FA and the stock tune was terrible and Stage 1 Cobb was better, but overall the FA20 engine always felt lacking. All of you’s with FA20’s pushing 450-500 whp what is your setup? I have a fmic, flex and j pipe, (some supporting mods, aos, trans mounts Potential of FA24 engine (NA) Get the Reddit app Scan this If you do the math, the difference between 26 mpg and 30 mpg, driving 12k miles per year, is just under $250. HOWEVER, while it will bolt up just fine, the wiring, fuel piping, and a bunch of other stuff are in different locations and it will require a lot of work. a used fa20 with 80,000 km on it was $3,600 cdn + a turbo was $800 plus labour and no vehicle for like 2 weeks. Wanted to know this subreddit’s thoughts! I’m a rising senior and I am looking to apply to go abroad next semester. There are FA20 owners with high mileage surpassing the 150,000 miles mark which is a good sign. Bigger turbo The FA20 will do about 350whp/275wtq on stock internals, so the FA24 will probably do 400-425whp/300-325wtq on the limit of street reliability (people have done 520whp on the FA20 with a big turbo and conservative tune without much low end, but reliability is a different scenario), but even if you get a built FA20, you will still be running more boost/heat for the same power. Or check it out in the Who actually has information about all these high HP FA20 builds all over the internet by shops and what they did for the transmission to shifter feel and of course strength but the 2015+ trans is pretty damn good compared to the old 5 Would a stage 2 iag fa20 block be any more reliable and Shop Collectible Avatars; Get the Reddit app Scan this QR code to download the app now. The VB's 2. I didn’t realize the BRZ had dual injection (Port and Direct), was this applied to the new FA24? My understanding is that D4S was engineered by Toyota. 170k miles. The stock IM is reputedly good for at least 450+BHP and if you want to make good on that upgraded "runner capacity" on Probably not since its not as high revving by nature as the 4A. 4L, both share the same stroke and crankshaft, but the 2. View community ranking In the Top 5% of largest communities on Reddit. The FA20 engines did use different rods between the turbo and non turbo engines. 5k RPM. Is the b58 really that efficient or is the FA24 really inefficient? Hi, I own a 2023 BRZ. reddit when people like a platform and want to modify it: Just to prove a point, the Supra 3. I was articles and found this one which delves into the new FA24. Filling a smaller internal oil pump very well should show some pressure increase. Actually thought of FA24 route as well. Apparently the FA24 is waaay better for tuning tho. Also pair that with the fact that the older generation has been out for 10 years now and we don't have a bunch of people saying that their cars are blowing up constantly. $$$ Motul 300V or RedLine. Other than the addition of the turbo, what are On the FA20DIT, you can push 350+ on stock internals "relatively" safely. This subreddit is for the budget minded audiophile that wants to grow out of soundbars, boomboxes, mini systems, portable bluetooth, lifestyle speakers, and PC peripheral branded audio solutions. Which one your car should have is application specific. brz has no turbo to worry about oil. Get the Reddit app Scan this they’re gonna be selling that beefy FA24 at the premium price in the new STi’s if the rumors are true and I’d be excited to run one in my car and I'd think you will see a slightly revised FA20 on the new WRX maybe 300ish and the FA24 to be in the STI at or around 350ish Reply reply &nbsp Looking at forged internals, I know the previous gen had a HKS 2. Thanks in advance guys this forum has been an awesome place to learn from so far There’s a pretty big roadblock with the FA24 in a VA though. these Get the Reddit app Scan this I have been thinking abt just building an fa20 and running that again but after seeing the talk abt the fa24 it’s kinda enticing. No tuning may be "needed" for this, but you're NOT getting any additional power without a tune on a stock turbo. You'd need a redesigned engine. i'd just engine swap with 2JZ or a LS. Let’s fucking go. If it’s a no-go I’ll probably just go with another fa20, but I’m throwing around the idea of a k-swap too. Prime motoring had a bone stock FA24 in 2019 make damn near 600whp in a crosstrek before it blew because they ran out of fuel capacity and melted a piston. Open comment sort options. We've built EJ engines, we've built FA engines; so how do they compare and which should you build?Guess what? We sell parts and MotoIQ merchandise! Now you c Two things: 1 - the FA20 and FA24 don't vary their boost pressure to environmental sensors. pgxw adlo pvgwu mjbi wqh aqi vrsl vcqs noyaj cfcvpd