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Engines for new Legacy


Austin2.5i

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I was wondering if anyone had heard any word about when the new 2.0L gas direct injection engine (200 hp) and 3.0L DI turbo (300 hp) were supposed to come out? The original preview articles about the 2010 Legacy all spoke of brand new engines, but clearly this isn't the case (unless you count the 3.6L)

Also, what about diesel?

 

Any ideas/speculation?

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I've never heard of a 3.0L DI engine from Subaru. Given that the 3.6L is more powerful, lighter, and more fuel efficient I think you can write off the future of a 3.0L.

 

The Subaru sports coupe is supposed to feature a 2.0L DI engine with 190-200 HP. I wouldn't be surprised if we saw that replace the 2.5L in the current N/A lineup. However, the 2.0L isn't the most efficient engine. Might be more worthwhile for Toyota to be putting their DI system on the 2.5L. Unfortunately, the 2.0L is already in the works. I am sure that the engineers know alot more about it that me and have a logical reason for picking the 2.0L.

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I've never heard of a 3.0L DI engine from Subaru. Given that the 3.6L is more powerful, lighter, and more fuel efficient I think you can write off the future of a 3.0L.

 

The Subaru sports coupe is supposed to feature a 2.0L DI engine with 190-200 HP. I wouldn't be surprised if we saw that replace the 2.5L in the current N/A lineup. However, the 2.0L isn't the most efficient engine. Might be more worthwhile for Toyota to be putting their DI system on the 2.5L. Unfortunately, the 2.0L is already in the works. I am sure that the engineers know alot more about it that me and have a logical reason for picking the 2.0L.

 

The 3.6 is a stretched to the limit EZ. Not a lot left on the table for that engine. It is lighter because the bores are as wide as they can get, and the engine was pushed for the most displacement as possible.

 

Displacement will of course hollow out the block (less weight) and generate a bit more power from more volume.

 

But that doesn't mean that the 3.6 has a lot of overhead for more.

 

The rumors are that the new 2.0 and revised H4 lineup may be truncated from the EZ series, with the same short cylinder pitch as the EZ30. Similar displacement from EZ30R->EZ36, would be extrapolated from E*20->E*24, roughly 2.4 liters, maybe round-up to 2.5, depending on the decimal figures, but 600ccs delta for 6 cylinders is 400ccs delta for 4 cylinders.

 

The current EJ20 NA may not be the most efficient, because it is also the least expensive, and least-featured. More could be done to that engine, let alone from an EZ-based format in NA guise.

 

IF they fit DOHC with Dual AVCS, and Toyota's Direct Injection system to an H4 version of the EZ30R lineup... (minus the premium fuel requirement due to the nature of DI), they could make the engine lighter, shorter, and more efficient, and more powerful, all at the same time.

 

But it probably won't be as turbo-friendly, nor have a lot of performance overhead to be gained from mods otherwise.

 

The EJ H4s, and the EG H6 would probably be the better bets for turbocharging, and sustaining high horsepower applications. It is too bad the EG33 wasn't updated with Dual-AVCS and similar displacement upgrade to ~3.6 as the newer EJ25 is up from the pre-AVCS EJ22 that the EG was similar to. That would be a kicker of an engine with turbos.

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While I don't see the 3.6l as a candidate for turbocharging. SoDealer on Nasioc confirmed that the 3.6 tuned for premium puts out close to 300 hp. Sounds like Subaru is able to do more with the engine... Regular fuel and lack of DI seem to be the bottleneck. I just don't see Subaru making a new engine and putting it on the market at its limit. As concerned with reliability as they are, I have to believe there's a lot more on the table.

 

*edit. I wouldn't be surprised if the 3.6l's biggest bottle neck is the 5EAT. Subaru seems intent on not crossing a certain torque barrier with that transmission for fear of prolonged stress leading to untimely transmission failure.

[sIGPIC][/sIGPIC]

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  • 3 weeks later...
With Toyota have multiple variations of their 6 speed auto, I don't understand why it would be difficult to share a part like that. Toyota's sales are down, they're making less cars, send the extra trannys this way.

 

Given the problems they've had with that tranny, I don't think I would want a Toyota 6-speed auto in my next subie.

 

http://kdka.com/consumerreports/consumer.reports.Toyota.2.375832.html

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