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Subaru Forester

1403 messages,  Last post on Apr 24, 2009 at 12:20 PM

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What is this discussion about? Subaru Forester, Wagon, SUV




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#1089 of 1403
STI block by dstew1
Jul 27, 2007 (2:41 pm)
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Only the '04 and '05 used the STI block. The '06 moved to the WRX block in conjunction with the WRX going from 2.0 to 2.5L.
 
The 210hp numbers for the '04 and '05 are widely viewed as Subaru sandbagging on paper so as not to offend potential buyers of the WRX (rated at 227hp at that time, I think). Then in 2006 it was corrected to 230hp, and from there it has dropped a little I think only due to changes in calculation methods. Nothing has really changed with the engine since its inception, other than the switch from the STI block to WRX block as mentioned above.
 
Essentially each year puts out about the same power in stock form, with the STI blocks maybe having a case for being a safer engine to modify to super-high power levels. However I think there have been slight gearing changes over the years (check the cars101 website) that has slowed 0-60 times a little in order to improve upon fuel economy.
 
Doug
#1090 of 1403
Re: Best tires & weird tranny shifts [erikwi] by dstew1
Jul 27, 2007 (2:48 pm)
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Replying to: erikwi (Jul 26, 2007 5:56 pm)

I ditched the Geos on my 06 XT at 18K miles in favor of the Potenza G009s and haven't looked back. No squealing, much improved handling on dry roads, more stability at high speeds, and better at everything in the wet.
#1091 of 1403
Re: Best tires & weird tranny shifts [dstew1] by erikwi
Jul 27, 2007 (4:49 pm)
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Replying to: dstew1 (Jul 27, 2007 2:48 pm)

I've got 23k on the Geos and they're ok, as long as it doesn't rain. I'm planning on moving to high country soon and am going to need something that does great no matter what. How do those G009s do in the snow?
#1092 of 1403
Re: Best tires & weird tranny shifts [kavoom] by erikwi
Jul 27, 2007 (4:52 pm)
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Replying to: kavoom (Jul 27, 2007 3:20 am)

Thanks for the info. I'll check it out. I've got another one for you folks. A tech at the Subaru dealer told me back in March I shouldn't be using synthetic oil. I told him in was in the owner's manual and didn't see the problem. He asked my question at the April technician school and was told synthetic oil was bad for subie engines. It was something about it drained off the heads too fast. Does this make any sense? I've been running Syntec since the first oil change.
#1093 of 1403
Re: Best tires & weird tranny shifts [erikwi] by dstew1
Jul 29, 2007 (4:45 am)
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Replying to: erikwi (Jul 27, 2007 4:49 pm)

Didn't really get a chance to run the G009s in more than a couple inches of snow last winter (mild one here in Arkansas), but I found the traction in those conditions to be pretty good.
 
Check out some of the reviews on Tire Rack; I believe there are several that mention the bite the tire seems to have in the snow. It also received excellent snow/ice scores during testing (note it's only scored against other high performance all seasons, not dedicated snow tires).
 
Doug
#1094 of 1403
Re: Best tires & weird tranny shifts [erikwi] by dstew1
Jul 29, 2007 (4:52 am)
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Replying to: erikwi (Jul 26, 2007 5:56 pm)

My other question is this. Sometimes when taking off from a stop, the tranny will shift in the highest gear as low as 20mph, causing me to hit the gas a little harder to get going. Is this normal? I've noticed this many times and have just assumed it is normal. Is it? Does it do any harm to use the shift lever and shift manually?
 
There is no harm to use the shift lever manually in the 4EAT, in fact I've been told that is why it is gated. I would suggest for stop/go driving around town where you'll be keeping it under 40 or 50mph, select "3" instead of "D". This will keep you out of 4th gear and makes it easier/quicker for your tranny to downshift into 2nd under harder acceleration.
 
Also the 4EAT is adaptive, so if it's behaving a certain way, that is largely due to your own driving habits. Driving aggressively will result in higher shiftpoints and quicker downshifts; driving like a grandma will result in quite the opposite.
 
Doug
#1095 of 1403
Re: STI block [dstew1] by ateixeira
Jul 30, 2007 (9:50 am)
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Replying to: dstew1 (Jul 27, 2007 2:41 pm)

You sure about that?
 
I was told the Forester XT (2.5T engine) had the STI block, so it was the other way around. It has the semi-closed deck block, like the STI does.
 
Also, when they went from 210 to 230hp, the peak boost did increase a little. I do agree the early 210 hp models were sand-bagged, big time, and made more power at the dyno than the 227hp WRX 2.0T did.
#1096 of 1403
Re: STI block [ateixeira] by dstew1
Jul 30, 2007 (11:54 am)
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Replying to: ateixeira (Jul 30, 2007 9:50 am)

Sure about what?
 
If you mean that only the '04 and '05 XTs got the STI block, then yes. As an '06 owner it is beaten into my head almost every day over on the sf.org forums by the '04/'05 owners.
 
I'm of the belief that it doesn't really matter that much except in the most extreme of circumstances; ie the STI block probably holds a slight edge in durability when it comes to big time engine mods.
 
The '06+ on the other hand got rid of the cat in the uppipe that was on the earlier years.
 
They've got plenty of info about the changes to the block from the '05 to the '06 version over there, if you care to look into it.
 
Doug
#1097 of 1403
Re: STI block [dstew1] by ateixeira
Jul 30, 2007 (12:58 pm)
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Replying to: dstew1 (Jul 30, 2007 11:54 am)

No, I'll take your word for it.
 
Should not make any difference with stock tuning. For those that do heavy mods I would seek out the earlier block, though.
#1098 of 1403
Re: Best tires & weird tranny shifts [dstew1] by kavoom
Aug 01, 2007 (10:30 am)
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Replying to: dstew1 (Jul 29, 2007 4:45 am)

The Geosquealers apparently do have relatively good characteristics in snow, and that apparently is about it. They will start hydroplaning somewhere around 35K is the scuttlebut and my 04 started to show that characteristic in the late 30's. You will note their nickname and that always made me laugh.
 
I keep mine at 36 lbs pressure all the time as I don't mind the hard ride and that improves mileage and actually seems to cut the squeal. The mechanics told me they see 32 lb tires wearing on the outside all the time... but a lot of people like that mushy soft ride of the 06's forward. I call the suspension engineering designs and boosted power steering after 05 as the "soccer mom" changes... The Geosquealers are the same...

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