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Old 10-06-2001, 02:55 PM   #1
toerag
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2001 ForesterS-Turbo
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Thumbs up Forester review

Saw this whilst looking for info on the Prodrive performance pack for the forester:-

http://uk.cars.yahoo.com/010516/4/7toc.html

Thought you might find it interesting.
Toerag
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Old 10-07-2001, 12:29 AM   #2
ForesterPerformance
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Great... thanks.

Just rub it in our noses AGAIN how great the turbo Forester is, since we can't get them here...

Sheesh.
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Old 10-07-2001, 12:53 AM   #3
jerymon
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Default Turbo Forester in America?

Strangly enough when I was talking to a dealer about the WRX before my purchase I had said Subaru should bring over a turbo Forester and he replied with "their talking about it and it probably will happen". I think now that the WRX has arrived and the wagon has gone over better than they had ever dreamed it's only a matter of time before we get some more goodies from the awesome car company. It's just my opinion but being a private company allows Subaru the freedom to do things others are affraid or can't do due to their stock holders.

The WRX just opened the door here in the U.S. and it's just the beginning I believe.

that's my .2 cents worth
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Old 10-07-2001, 02:44 AM   #4
ferretboy
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Talking

Hmmmm "When you wish upon a star, we'll someday get our turbo Forestar...la la la la la..la ..la ..la ..laaaaaaaa" Well girls and boys, we can all dream a little dream
~ferretboy singing to himself in a haze
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Old 10-07-2001, 10:55 PM   #5
WRX Fan
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Yes, but the Forester Turbo has about the same engine power as the 2.5 normally aspirated engine here in North America. Just 9 hp more!

Not really that big of a difference.

245 Nm = 177 ft lbs
177 PS = 174 HP
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Old 10-07-2001, 11:17 PM   #6
ForesterPerformance
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Ahhhh, but that is where you are wrong. The NA Forester must rev and rev and rev to find that peak HP, whereaz the Turbo one has a nice flat torque and HP curve that starts at about 2k rpm or so.

Picture the torque in your NA 4E* at 5k rpm pretty much ALL OF THE TIME!!! That's somethin'.
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Old 10-09-2001, 08:36 AM   #7
Schwarzwalder
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HP = (torque x rpm) / 5250

The horsepower is a factor of the torque curve. A high HP number (as in the WRX) is meaningless in everyday driveability, as it requires revs to build or a downshift (and revs to build) to access it. Either way you wait for HP.

The shape of the torque curve is as important as the peak torque number. A broad flat torque curve creates a vehicle which is easy to drive in traffic, but is somewhat "boring". A negative slope torque curve (ala Harley, semis, and earth moving equipment) has a feel of great power, but breathless as the revs build. A positive slope torque curve (ala Honda and WRX) feels gutless off the line but excitement builds as the revs climb.

Personally, I like my torque curves with a slightly positive slope. I think the WRX would have been a better vehicle with a low pressure 2.5L turbo, torsen limited slips, cold weather package, and a price of $26K. Better let, a Legacy GT with a turbo 2.5L for $27K.
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Old 10-10-2001, 11:28 AM   #8
juice
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The Forester turbo, despite the similar power, hits 100kph in under 8 seconds. Ours takes over 9 seconds to hit 60mph, which is less than 100kph.

Peak torque happens much, much lower in the rev range with the turbo engine.

-juice
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Old 10-10-2001, 04:53 PM   #9
Schwarzwalder
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Yes, but by using a dragstrip launch technique to build revs and keep the engine on boost. I don't drive that way. 0-100kph numbers tell virtually nothing about drivability, as few people keep the engine boiling on boost while cruising in traffic. Turbo lag is always a PITA. I've put many miles on V8s, 6s, and a variety of NA 4s, low pressure turbo 4s and high pressure turbo 4s. For day-to-day ease there is no replacement for displacement.
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Old 10-10-2001, 05:23 PM   #10
lark6
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Schwarzwalder: nice screen name.

I'd be happy with the existing torque curve and about another 10-15 hp and lb/ft myself. If only I could find someone to put together a nice 2.25" stainless catback for me. I missed out on Rallispec; I like the idea of a Brullen quiet tone resonated setup but the famous GTBGUY(?) won't do a one-off and I don't think there are 10 of us here that he'd do a GB for. Maybe it's time to find a good local fabricator...

Ed
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Old 10-10-2001, 05:25 PM   #11
ForesterPerformance
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I agree and disagree, Schwarzwalder...

By turbocharging an engine you are increasing its maximum efficency, and therefore are "replaceing displaement." The trick is to reduce the lag enough to where you really don't notice it. With the lower boost turbos, they actually spool up really quick, to the point where "lag" becomes a moot point. The 2.5 RS-T imprezas that I have had the pleasure to ride in demonstrated no discernable lag, and just had gobs of power no matter where you were in the rev range. It just comes down to proper turbo sizing and cam selection / ignition timing...

On the other hand, a gargantuan V8 (like a mid-70s Caddy 500cid) has OCEANS of torque but little HP. It weighs a ton, and the car strong enough to support it's weight and torque must also weigh a couple of tons as well... Okay, so the tank can accellerate in a straight line, but don't EVER try to make a turn.

Also, Juice 100kph is approx. 62 mph. Almost the same thing...
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Old 10-11-2001, 05:23 AM   #12
ferretboy
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Lark,
a littld O.T. I have the HyperRev about the foresters..there are lots of stainless exhausts available, just gotta find someone to get you one..Syms makes a nice one as well as many others. They may be pricey though. wow..I guess mine is the only Rallispec (cheer!) forester catback
the hella supertone install went well, now contemplating going direct to battery for more decibles! muahahahaha! btw pic of your car with p7's yet?
~ferretboy signing out.
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Old 10-11-2001, 06:56 AM   #13
toerag
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Premium Silver

Default

Here's another review I found, check out the wading picture!
Review
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Old 10-11-2001, 09:54 AM   #14
lark6
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toerag: Wading? Been there, done that. Check out the photos from the Pine Barrens trail run in the Tri-State forum.

ferretboy: Yes, direct to battery would help - I don't think the Supertones are loud enough as is. Still have the relay from the vendor so that's an option. I painted the grilles on mine black so they would blend in stealthily.

I don't have the P7s mounted yet; we can start expecting snow around here beginning next month and I want to get through this winter on the stock setup. I'm shooting for March '02 to get them on - a nice birthday present to myself.

I don't speak or read Japanese (katakana) so I'd really be interested in what's available in Japan. I've been doing some web searches and finding a lot of neat modded Foresters over there, but I also see that there are some Aussies and Kiwis who are doing neat stuff with them as well.

I just got a new digicam yesterday and I'm going on vaca next week, so at least I'll be able to snap some pix of the car with the STi/Aussie GT grille on with the beautiful Blue Ridge Mountains as backdrop. Stay tuned...!

Ed
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Old 10-11-2001, 12:07 PM   #15
Ken S
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Silver

Cool Supertones

FP, Ed:

Sorry, going a little OT here, but are either of you planning on doing the direct-to-the-battery hook up of the Supertones anytime soon? Do you know if you need to ground the horns to the negative terminal or is the chassis okay? I'd like to hear how it went with a Forester.

Mine are also hooked up to the stock wiring and I'm considering doing it right for maximum power.

BTW, I like mine red. Quite a numer of my friends have come up to me to ask "hey, what's that red thing in your grille?". Let's say, some of them don't like me as much anymore.

Ken
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Old 10-11-2001, 04:42 PM   #16
lark6
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Question

Ken - not sure when I'll get to that. I have to look at the diagram to verify the grounding requirements, but I can't see why chassis grounding wouldn't be okay.

The other reason I painted the grilles black was so that they wouldn't detract from the pink STi grille badge.

Ed
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