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Turbo FA in the new JDM Legacy, next WRX
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http://www.fhi.co.jp/english/contents/pdf_en_79294.pdf http://i589.photobucket.com/albums/s...217ff02_32.jpg [ame="http://www.youtube.com/watch?v=-ddGfJUyMRk"]€ #‚ƒƒ‚ 編›†裏€‘ƒ‚‚‚BR/BM typeD Debut with FA20 DIT - YouTube[/ame] Interesting that they are using their own DI and not D4S. So a BRZ with a turbo in theory could make even more power by utilizing the dual injectors. Quote:
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296 hp for the WRX is fine and more for the STi will be even better, but I want to see the new WRX soon.
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Hopefully the engine will be a easy swap for those that want it and a Hella lot cheaper than a turbo kit me thinks
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nice find!
However 296hp out of the 2.0 in japan sounds more like ~270hp by the time they de-tune the crap out of the engine to meet US octane and emission requirements.... Still would be absolute beastly in the BRZ though.. We all know its coming, just a matter of when... |
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http://photos.motoiq.com/MotoIQ/Proj...erdit161-M.jpg "Though there are no claims this will go in the 86, it doens't take much imagination to see it being done, either by them or by us. This turbo packaging is very friendly for the 86's FR layout, since there will be tons of room in front for a bigger turbo. This packaging makes a twin-scroll a no-brainer, since you could essentially have the same manifold as the non-turbo engine, but with a turbo flange right after the 4-2 collectors. It would also be much easier to simply put the intercooler in front, where it belongs, and connect to the already forward-facing throttle body. It's not clear how Subaru is dealing with oil drainage, since the turbo's oil drain is down below the oil line in the pan, but the fact that Subaru already worked it out for us makes it much easier when we turbocharge one of these ourselves. The dual direct/port injection system now makes perfect sense. It's easier for tuners to leave the direct injectors alone and add bigger port injectors for boosted fueling. " link for more info http://www.motoiq.com/magazine_artic...86fr-sbrz.aspx |
Turbo FA20 announcement
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There you go, even though it's CVT and looks like the bottom end sits too low for the BRZ. |
Interrrrresting...296 hp too, wow.
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Mash, wait, BOOST, ditch. I'm holding out for a supercharger.
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Awesome. Can't wait to see what the next gen WRX/STI will be like.
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This intensifies my anticipation of seeing a new WRX/STI. I want it revealed real soon.
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Either a Sport Impreza (since we hear the WRX will not be Impreza based anymore...) or a BRZ STI? I wouldn't mind a smaller AWD 3 or 5 door hatch from FHI with that motor either... (You know, one with short overhangs and wheelbase, lots of suspension travel, strong chassis, WRC suitable...) Say ~235hp/200tq... |
It's cool & all but it's not FA engine... I think, they just tuned FB engine into turbo w their own DI.
Ah~ whatever |
I think the TRD supercharger, albeit sacreligious on a BRZ, is the way to go with this car.
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Given that it's mated to CVT it's probably a pretty peaky engine and won't be a good match for MT sports car.
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ummm....not the same motor....
besides that, if you are still fixated on SC's you haven't been paying attention to the latest Turbos...for instance this is my 2.0L SR20 http://i24.photobucket.com/albums/c9...012Dyno-01.jpg http://i24.photobucket.com/albums/c9...012Dyno-02.jpg notice it makes 8psi by 3000rmp and that's without using the top wastegate port to assist spool up... also makes 260whp on 6psi wastegate pressure |
soooooo engine swap anyone?
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Maybe Subaru will Twin Charge it! :)
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It's not about the torque curve... Turbos typically have poorer throttle response. The actual spool up time can make throttle modulation difficult. Enought to possibly upset the balance while navigating a corner (at the limits, on a track). I know there are some methods to reduce this response time, but I don't think they will be appearing in daily drivers any time soon. You'll never see throttle response on a dyno graph, since it's floored the whole time.
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correct, but I drove it. and while it isn't NA with ITB's quick it will melt tires before the pedal hits the floor and you can get back out...in 3rd gear.
low end boost helps to represent what the throttle response will look like. |
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It's likely this is a downsized and "downspeeded" engine. It probably hits peak torque ostensibly at 1700-2000rpm and falls on its face by 5000-5500. That's how these types of engines are. It may employ heavy use of external EGR, possibly cooled EGR like a diesel.
It's not going to use the D-4S system because there's really no point in doing so. The D-4S system, as currently implemented, is expensive and only makes sense for n/a engines. I suspect this new engine will have one solenoid-type multi-hole injector positioned between the intake valves. The CVT is a wild card here. The calibration of the CVT and the electronic throttle will affect the driving feel greatly. If you've ever driven a Juke with CVT (1.6 direct injected turbo), they technically heat peak torque at very low rpm but you can't feel it due to the CVT calibration. |
Well the D4-S system is Toyota property.....they probably dont want to share that tech with Subaru on a motor that is seeing Non-Toyota applications.
And doesnt the current new Impreza use a CVT also? I would say that would be a good indication of how the CVT would be calibrated in this new Legacy. |
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Negative Charlie. DI and FI are highly compatible, "as currently implemented" doesn't mean a whole lot, the hardware is there...tune it for turbo...control strategy changes for everything lets not make it out like different shape injectors are needed for turbo, the hardware can go unchanged (except potentially flow rate) Charge cooling is one of the largest benefits of DI systems and they are all but lost on a N/A motor....FI loves DI :sigh: |
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Also what makes D4-S more worth it for NA engines? Is it that with forced induction you can afford a high tumble ratio port and not lose high end power? Quote:
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http://www.subaru.jp/legacy/dit/perf...ges/pict02.gif
That's the engine that should have gone into the BRZ. |
Thats quite low revving.....
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Toyota is going to release their cars non-FI for a while till they feel like the pressure for FI is too great, or when they see lots of people going for the new WRX/STI or swapping engines, then they'll do it. Then, Subi follows because of contracts and inputs it in the BRZ.
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Whats the CR on this engine?
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Some relevant links courtesy of the NASIOC thread that predates any news reports on this side of the globe.
FHI Press Release Quote:
Subaru Patent Application Quote:
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