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Comments
Bob
If Subaru is considering this, I would also think they would bump up the H-6 to at least 3.3L. Otherwise the engines would be too close in size, IMO. Also, large 4 cylinder engines have always been known for the shakes. I'm guessing the a larger boxer is probably less prone to this however, because of its inherit natural balance.
"Really big" 4 cylinder engines are not new. Porsche had a 3.0L 944. Mitsubishi had a 2.6L a few years back. Nissan just introduced in Australia, a 3.0L 4-valve, DOHC diesel pickup. So, I guess a really large H-4 is not out of the question. It certainly would be the least expensive alternative—certainly less expensive than a turbo.
This guy also did confirm the H-6 Legacy too—and NO H-6 for the Forester, BTW.
Ah, something new to contemplate...
Bob
I doubt the existing H4 could go that large. Aftermarket tuners--who care nothing about factory durability and longevity-- do not recommend more than 2.6 to 2.65L.
That means either a) your salesman was speaking jibberish or b) FHI is building a new, bigger H4 block. I doubt b) considering the EZ30 is only slightly longer and less than 100lb heavier than the 2.5L, but I suppose anything is possible.
-Colin
I thought the new Legacy was coming in 05 or something, 03 will be fine by me, just in time to replace my 92!
I'd be game for an H-6 Legacy GT.
Ken
What surprises me most is: I didn't think Subaru would even consider a larger H-4 than the 2.5. I think we've all been thinking either another H-4 turbo, or spreading the H-6 around to more models.
Do you know if the current 2.5 H-4 is built on a separate block that is different from that used on the 2.2 H-4, or 2.0 H-4? As you know, in Japan they also have a 1.5 H-4. I'm assuming that block is not related to the larger H-4s?
Bob
The EJ series that has made it to the US is all the same basic engine block from 1.8-2.5L. In fact, the 1.8L and 2.0L share the same stroke and same crankshaft. (someone on the iClub broke an expensive WRX STi motor they imported and replaced it with a lowly 110HP 1.8L crank... lol)
Anyway, you have to remember that Subaru is a pretty low volume player so engine designs are costly. The H4 in my opinion doesn't need to go above 2.5L because at that point it should be turbocharged or the H6 should be used. Anything above 2.0L in most of Europe and Asia is hit with pretty hefty taxes.
-Colin
-Frank P.
I say add technology like AVCS instead. They are already at the CAFE limit. Subaru hints at this by calling the Forester "more fuel efficient". We all expected it to be quieter and more refined (as the Impreza was), but it's already getting 21/28 or 22/27 mpg. If it gets better, it'll actually exceed the ratings for the lighter Imprezas.
How? AVCS seems like the most logical answer to me.
Legacy 6 sounds good. I hope they don't give it a ridiculously long name like "Subaru Legacy GT Limited H6 3.0". That's more like a sentence.
OK, I caught a piece of bad news. We're all aware of the 2005 SUW, but now they were specific about the date and said calendar year 2005, model year 2006. So it's even further away.
-juice
Why? You can't stroke the 2.5l H4 much, because there isn't space. So you can bore it out a little, though I seriously doubt you could reach 2.8l. So you'd need an entirely new block, therefore a new crank, new headers, lots of re-engineering.
They could build a 2.8l H6 from the existing 3.0l engine, and either shorten the stroke (new crank) or use a smaller bore (new pistons and cylinder sleeves). Either way, that's fewer new parts to engineer.
-juice
It wouldn't surprise me that Subaru is looking into this possibility. I'm sure they look into all sorts of possible powertrain alternatives that we never hear of. The question is: Do they think it's worthy enough to put into production?
As to the salesman: Normally I would agree. However this guy has been around selling Subies for years, and he's from one of the Balt/Wash largest Subaru dealers, Heritage Subaru (which also owns Tisher Subaru). I've seen pre-production models on their lot before they hit the streets, left there by SOA reps, for service or inspection. The H-6 Outback comes to mind. Still you could be right, he could be blowing smoke...
Bob
An H-4 would be cheaper to manufacture... less parts than an H-6 or H-4 turbo. This would be the low(er)-cost alterenative to getting more power.
Bob
To US buyers, a 4-banger is still just a 4-banger. It would do little or nothing to improve the image of the models that got a 2.8l. Even it it was quicker and better, many would still say "it's not a six".
That stigma, plus worse mileage to hurt CAFE, makes it seem unlikely IMO.
-juice
While I agree with what you're saying, a 2.8 H-4 would be cheaper to market than a 2.8 H-6. I think that's how Subaru would approach it—more bang for the buck with the larger H-4, especially in this highly competitive and very price-sensitive market segment.
He also thought, if this were to come to pass, it would not be this year. So I don't expect to find it in the new Forester, at least not yet.
Again, this engine configuration may have made Subaru's "short list" of possible directions to go. It doesn't mean it will happen at all.
Bob
Only if Subaru can bore out the current EJ block to 2.8. It makes no economic sense if Subaru has to develop a whole new block.
-Frank P.
Bob
Bob
Two days!
-juice
Jim
Bob
* same prices as 2002 models
* little/no weight gain
* stiffer structure, more refinement
* better materials (visor, carpet, head liner)
* AVCS for the 2.5l engine
* 2.5l turbo by January 2003
* seats from WRX, with height adjusters
* rear suspension from the Outback
* 16" wheels standard
I'm hoping it gets all those things.
-juice
Another way to meet CAFE standards is to offer that 5EAT and 6MT that we've been asking for. Spread out the gearing a bit so that the engine revs lower in the highest gear.
A 2.8 4-banger would be wild, but I would have a hard time choosing between that and the H6 unless price was an issue.
So is that 10:45 CST?
Ken
-juice
Sil
Ross
I really think they got Patti in the dungeon again. Just like before the Baja announcement.
-Dave
Serge
-mike
Subaru had better keep up.
-juice
Serge
Hope Subaru will have their 5-speed automatic ready by then.
Bob
http://www.apexjapan.com/
Ken
-juice
How about a 2.5 turbo Legacy GT wagon with 200hp, VTD-5EAT, WRX seats ?? I'd be buying one in a split second.
subaru was highly motivated to compete in FIA world rallying and when they came in 2.2L was the max displacement (audi Quattro Sport = 2.2L for the same reason).
the legacy turbo of course was a warmed over version of the rallycar, making only 160HP with the same tiny IHI RHB52 turbo used on the EA 1.8L engines (GL, loyale, DL, etc.).
today the WRX is a 2.0L turbo instead of 2.5L because of rallying and taxes. mostly rallying.
subaru would have to think they could sell a whole lot of 2.5L turbos to justify building one. they also have to think they have a gearbox capable of surviving behind one, and honestly I think only the six speed manual could do that.
-Colin
John
They did come out with a Legacy GT turbo in Autstralia I believe. I think you will see it in the pipeline in the states in the near future along with the Minivan and the 7 passenger Audi looking wagon from the Tokyo car show.
Bob
Cptplt - I think everyone has responded correctly to your post. I also think the 2.5 could generate nearly, if not over, 200 hp without a turbo. Easily. Juice's comments on variable valve timing come to mind. But, then again, maybe a light pressure turbo and no intercooler (cheaper, possibly more reliable?) would be desirable, dunno. Maybe a combination of the two. I have to say I'm skeptical of the "rumored new engines". Subaru seems to have all the layouts they need in one form or another.
Jim
The problem is that such an engine would be high rpm, which even with gearing is definitely not what you want for an Outback or Forester, and probably not even a Legacy.
A low-pressure (say 10psi or under) 2.5L super- or turbocharged model would offer considerably more low-end and midrange torque which is exactly what the Outback & Forester need...
Kinda unlikely given the H6 in my opinion, even though a low-pressure 2.5L would be all over the 3.0 H6 for low-end and midrange.
-Colin
I took it in for service just before the warranty expired to discover they would be replacing the entire transmission. After all the other problems I had with that truck, I never got it out of service...I traded it in while it was in the shop and bought a Mazda. When it shifted, though, it shifted beautifully well.
My very good friend is now on his 3rd (!) transmission rebuild on his Blazer with 80K on it...that's inexcusable. I remember in the 80's, too, my friends with GM trucks ALWAYS had transmission troubles. Smooth, yes, but not very durable (like most everything else GM touches).
Brian
But then again maybe the reason Detroit owns Saab now is that they were bankrupt!
It does probably mean that there will be no turbo Legacy though, at least not anytime soon. I can live with that if they put enough sportiness into the 6. Actually, I might even consider *gasp* getting an automatic -- if they make it a 5-speed, and if it's the only way to get the VTD center diffy. Dream combo would be a 6-speed manual with the spiffy diff. My fear however is that they're aiming at the near-lux folks such as Acura TL and Lexus 300, and so will tend towards lux instead of sport. I hope not -- that segment really needs an affordable driver's car, and Subaru has a lot of experience and a justified international reputation for building that kind of car.
As for other displacements in the 4-cylinder range, didn't I read somewhere that the new 6 was the first in a family of motors, and that there would be 4-cylinder versions?
Rgds,
-wdb
My Rodeo went 120K on the GM transmission built in France. (never even changed the fluid) and so far the Trooper has 35K good miles on it. Both did extensive towing.
-mike
Jim
Dang, the week just became a day longer...
well another day to look foward to hearing.seeing about the 2003 Forester.
Is it Wednesday tomorrow? :-)
-Dave