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Old 12-31-2001, 04:29 PM   #1
GTBGUY
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Smile Good news for Forrester guys w/ want more speed!

Just an FYI, iON Performance will be coming out with a Turbo-kit for Forresters, as well, they have a full line of T304SS exhaust systems for the Forresters.

Suspension etc is also available.
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Old 12-31-2001, 05:42 PM   #2
Ken S
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Cool, but I wonder how much different a turbo kit for the Forester would be from the Impreza. Pretty much everything under the hood is identical.

Ken
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Old 12-31-2001, 06:05 PM   #3
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Thumbs up Finally!

GTBGUY, that's good news. I asked you about the availability of your Brullen catback systems in your GB thread awhile back; you wrote then that you'd do it for Foresters only with a GB. Now I might have to save up more pennies after my wheel/tire upgrade in the spring.

I'm guessing the difference in the Forester and Impreza turbo kits has someting to do with the shape of the intake?

Good luck selling them...we Forester owners have a little more wind resistance to overcome than the Impreza guys.

Ed
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Old 01-01-2002, 01:29 AM   #4
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There should be no difference. Foresters and Imprezas use the same intakes...
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Old 01-01-2002, 09:12 AM   #5
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fp: I have to admit I haven't been scoping out Impreza snorkuses. Well then I second Ken's question: how would a turbo kit for the Forester differ from one for the Impreza?

Ed
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Old 01-01-2002, 10:54 AM   #6
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It probably wouldn't other than a different choice for a turbocharger. My guess is that the turbo would be sized smaller for a Forester kit, than a Impreza kit. This would provide quick spool up and more torque down low where most SUV owners want it. Where the Impreza kit would most likely put the power up higher in the RPM band.

Engine and drivetrain are the same, other than the Forester exhaust tips are about 2 inches longer

The only other thing I can think of that may be different is that it may come with a front mount IC, instead of the top-mount, so the Forester owner won't have to get a new hood.

It is still great to see more vendors interested in the Forester as a potential source for aftermarket sales. Thanks GTBGUY.

Regards,

Aaron
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Old 01-01-2002, 08:31 PM   #7
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AaronB: That makes sense; I wasn't thinking about the location of the intercooler (forehead slap) and the additional cost of importing a Forester S turbo hood.

As for the size of the turbo, it might make sense for the vendor to offer two different sizes to the Forester owner. The choice would depend on whether the car was used to haul, tow or perform other "typical" SUV duties, or whether it was used as basically a tall wagon. I won't turn this thread into a "Forester: SUV or not?" discussion but acknowledge its hybrid nature.

Thanks for bringing the (obvious, hindsight 20:20) differences to my attention. Sometimes I post without thinking things through.

Ed
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Old 01-01-2002, 09:44 PM   #8
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That's all I was saying Aaron. Drivetrains are identical down to the exhaust tip. I know. I have an RS muffler bolted up to my Forester... And you are exactly right. 2" shorter.
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Old 01-02-2002, 02:34 PM   #9
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You guys are right. Now that I think about it, the turbo Foresters in Japan (take the STi version) are tuned differently from the WRX. It would make more sense for the turbo on a Forester to deliver more mid/low-end power than on an Impreza.

Hey, I could see some Impreza owners wanting this Forester turbo kit if it emphasized mid/low-end power.

Ken
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Old 01-02-2002, 02:54 PM   #10
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Yeah, or maybe some WRX owners ditching their cars for Forester Turbos when they get spanked at a stoplight because of this different tune. ( heh heh heh!)
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Old 01-02-2002, 06:11 PM   #11
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Here's more info for you guys

Turbo kits for the Forrester will be using a specifically mapped GT28 turbo (capable upto 400hp for the Forrester app). The RS turbos are good to 450hp. (Water and oil cooled, dual cartridge BB turbo, same as the HKS GT2835 turbo).

They will be ceramic coated as well to keep the under hood temps down.

For those who want to use the stock hood, you'll have to use our front mount I/C with the kit.

We'll also be coming out with a CF hood of the JDM Turbo Forrester, so that will be an option for those who want the TMIC.

As for power characteristics, they will take on the nice fat torque curve of the EJ25, should start boosting as low as 1700rpm and full boost by 3500rpm. This turbo will be the same as the one used for the Legacy Wagons that will be offered as well
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Old 01-03-2002, 05:39 AM   #12
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Question is,
what'll it do mister?

Have you got power/torque figures/graphs for us to drool over?
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Old 01-03-2002, 09:41 AM   #13
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What about those who would prefer a simple kit for a mild power boost (say less than 220 hp). I'd prefer simple, simple, simple (the K.I.S.S. theory), and prefer no IC. Small turbo so it spools up down low. And lower cost.

Sound feasible?
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Old 01-03-2002, 04:48 PM   #14
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Default I Like KISS too

What price range are we talking about here? $1000-$2000? I prefer a low boost turbo, no IC and cheap!

Kenric
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Old 01-04-2002, 04:12 AM   #15
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The problem with a low boost turbo is that when you're driving hard (4000rpm +) the turbo is spinning too fast to be efficient and heats up the air excessively. The turbo in my car is smaller than the one in a WRX (allegedly) and starts boosting (whistling) at 1800rpm and is up to full boost before 3500rpm (seat of pants dyno). That's great in 'normal' driving, but when I charge around I can get the turbo glowing within 5 miles of my house, and I have an intercooler as standard. Obviously you guys have an extra 500cc to play with, so I guess you could put a standard 2litre impreza turbo on and have the same sort of percentage gain that my turbo gives me over a N/A 2litre (125PS to 177PS (29%), 184Nm to 245Nm(25%)) Go for a top mount intercooler then you can have the hood scoop . I do suffer from heat sink with mine though, but I spend quite a bit of time in traffic. It's not a problem on the open road.
PS. max torque for me is 3200rpm compared to 3600rpm on a N/A 2 litre
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Old 01-04-2002, 09:32 AM   #16
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Default just an idea

if you wanted to do it on the cheap.....just get a stock wrx (96-00)intercooler from australia.you can pick them up for about $150AUS.

toerag.....our stock turbos are definately smaller heatsink :monkey: traffic + 30-40degC temperatures must zap atleast 20-30% of power
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Old 01-04-2002, 11:33 AM   #17
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Oki,
at least it's winter and 5 degrees C here

Do you know of any off-the-shelf performance kits available (similar to the prodrive WRsport pack)?
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Old 01-05-2002, 05:39 PM   #18
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toerag - Dyno figures will be available in spring, the guys down at Cobb Tuning will be doing the dyno'ing for the Forrester kits.

Mr Wolf - One thing with cost vs. reliability. You do pay for what you get for. Having an I/C is relatively cheap insurance vs. blowing a motor by melting a piston.

Ag NSX - The turbo alone is more than $1500US! We're not talking about an el'cheapo set-up here. Everything is in either T304SS or Aluminum.

One thing we're considering for the Forrester as well as any other non-scoop'd car is to run an Air to Water I/C set-up which only goes online on boost. This will definately be more expensive than an Air -> Air set-up.
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Old 01-05-2002, 08:37 PM   #19
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How difficult would it be (so that we vould run top mount air-to air ICs) to either...

(a) get Forester turbo hoods? (Somebody said they could get them for $450 each before)

(b) get Impreza RS scoops (or some other aftermarket / carbon or fiberglass scoops) and have a local body shop cut the holes?

Thanks.

(BTW: Forester has only ONE "R" Its not FORRESTER. Thanks.)
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Old 01-06-2002, 09:14 AM   #20
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Wait a little while the turbo Forrester will be here in 2003. Watch for it at the Chicago Auto Show!
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Old 01-06-2002, 06:22 PM   #21
GTBGUY
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ForesterPerformance - sorry about the spelling, IIRC, that's how they spell the Forester overseas...

In anycase, yes you could run the Forester turbo hood, but you'll have to acquire it yourself.

As well, if you do the body work (ie: get a scoop and cut a hole etc..) it will cost almost as much as a hood.

Since the Forester hood is larger than a Impreza hood, it will definately weigh more. The CF hood that will be coming out will be functional as well as increase performance (ie : ~30lbs less up front), which will help handling.
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Old 01-06-2002, 08:53 PM   #22
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No prob. We had a thread here about a week ago telling how it is a pet peeve of us Forester owners that most people misspell the name. Nobody forgets how to spell WRX!!!

As for the Carbon Fiber hood, will it be available with the hole for the scoop? What about one with a reverse scoop (a la Evo) for the FMIC?? That would be cool.

Just my $00.02
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Old 01-06-2002, 09:50 PM   #23
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Lightbulb Got an Idea

Greetings everyone!
I was sitting around thinking and the thought came to me about foregoing the turbo hood (in the event I do turbo the FATTY) and doing a front mounted intercooler. what do you think about that idea guys and gals? So much better to surprise someone with a TOTAL sleeper look. I'd even look into having the intercooler anodized black to make it stealth.
~ferretboy signing out.
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Old 01-07-2002, 03:28 AM   #24
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Quote:
Originally posted by ForesterPerformance
As for the Carbon Fiber hood, will it be available with the hole for the scoop? What about one with a reverse scoop (a la Evo) for the FMIC?? That would be cool.

Just my $00.02
As the scoop isn't fibreglassed in on my hood I guess it would be pretty easy to take it off and turn it round. The only thing is that it has a hole specifically to vent the heat from the turbo which would end up on the wrong side. I'll look next time I check my oil.

And for all of you considering a FMIC, just remember that that would add lag which you're trying to remove by fitting a small turbo.
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Old 01-07-2002, 11:00 AM   #25
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Quote:
Originally posted by GTBGUY

Mr Wolf - One thing with cost vs. reliability. You do pay for what you get for. Having an I/C is relatively cheap insurance vs. blowing a motor by melting a piston.
What boost pressure are we talking? Are we talking stock CR?

An IC is easy to add later.
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