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Old 11-28-2002, 03:53 PM   #1
JC
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Default 250 Hp Na?

Who's car is this? That STi wing is nuts.

http://www.xcceleration.com/imp-gallery-rs_cobb.htm

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Old 11-28-2002, 09:21 PM   #2
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250 N/A hp with out:
Any type of ECU or ecu modification? Wow. I know it is a 99, but still. Wow.

That wing looks to be the STI BI wing from the 202.
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Old 11-29-2002, 01:53 AM   #3
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250HP? Dyno charts?

I remember when Cobb dyno'd their monster N/A car a couple years ago (think that's when they first introduced the 'spicy' cams), it made about the same wheel-HP numbers as the WRX.

I'd like to know more about their "Modified Runner to Throttle Body" mod, though...

I emailed them, we'll see what they say.

-s-
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Old 11-29-2002, 03:17 AM   #4
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Quote:
Originally posted by scotty305

I'd like to know more about their "Modified Runner to Throttle Body" mod, though...
that's the word they use for rigged intake system...and that mod list i see NOTHING that makes that car make 250 hp...pro street cam....umm yeah funny cause last i checked there were 2. sorry but i don't believe that car is making anywhere near 250 HP...no 5 angle valve job and decked cylinder head with cams will net you 250 hP and on a stock bottom end none the less.


Jeremy
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Old 11-29-2002, 03:32 AM   #5
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Hehe, he is using the stock 93/94 1.8l intake plumbing

I say 210hp max.
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Old 11-29-2002, 12:29 PM   #6
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Quote:
Originally posted by HndaTch627
that's the word they use for rigged intake system...and that mod list i see NOTHING that makes that car make 250 hp
What about the brake caliper paint!
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Old 11-29-2002, 02:17 PM   #7
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Quote:
Originally posted by Jademonkey


What about the brake caliper paint!
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Old 11-29-2002, 02:49 PM   #8
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Quote:
Originally posted by Kostamojen
Hehe, he is using the stock 93/94 1.8l intake plumbing

I say 210hp max.
BTW, there is an identical intake plumbing that has a larger diameter and is made specifically for the 96-97 2.5L Legacy engines <which this might be> - I've been using one for 4.5 years now.

Now back to the rippin'...
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Old 11-29-2002, 03:16 PM   #9
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I have heads, cams valve job and i getting my deck closed with custom pistons (11:1) con rods increased by 4mm and all the goodies and Im PRAYING for 250 hp n/a, i dont think this guy has it without serious bottom end work! I want to see what their email says about it...

Dan

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Old 11-30-2002, 02:33 AM   #10
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Quote:
Originally posted by dcoty
I have heads, cams valve job and i getting my deck closed with custom pistons (11:1) con rods increased by 4mm and all the goodies and Im PRAYING for 250 hp n/a, i dont think this guy has it without serious bottom end work! I want to see what their email says about it...

Dan

Im sure your car is much closer to his, especially if you have gotten the redline raised
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Old 11-30-2002, 02:35 AM   #11
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Quote:
Originally posted by Albert
BTW, there is an identical intake plumbing that has a larger diameter and is made specifically for the 96-97 2.5L Legacy engines <which this might be> - I've been using one for 4.5 years now.

Now back to the rippin'...
How large is the diameter? My 1.8 piping is 3" all the way through, as large as the throttle body opening itself...
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Old 11-30-2002, 06:43 AM   #12
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im saying 185-190 MAX hp
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Old 11-30-2002, 09:20 AM   #13
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Kostamojen - Raising the rev limiter doesn't "necessarily" give more power to the car.

~Anthony.
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Old 11-30-2002, 01:30 PM   #14
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Quote:
Originally posted by WRX 555 STi
Kostamojen - Raising the rev limiter doesn't "necessarily" give more power to the car.

~Anthony.
sure it does, when you have a valvetrain to support it like that car does. More overlap/more lift, but that's only NA form, that'll destroy your car in FI form

jeremy
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Old 11-30-2002, 03:54 PM   #15
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Quote:
Originally posted by Kostamojen

How large is the diameter? My 1.8 piping is 3" all the way through, as large as the throttle body opening itself...
3.25" id from MAF
3.00" id at throttle body
P/N: 14457AA111

The one I saw on MY93 1.8L engines "looked" smaller and had a pigtail. But, who knows. The car was also from out of state.
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Old 11-30-2002, 04:59 PM   #16
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Default Dan, I think we're long lost brothers???

Quote:
Originally posted by dcoty
I have heads, cams valve job and i getting my deck closed with custom pistons (11:1) con rods increased by 4mm and all the goodies and Im PRAYING for 250 hp n/a, i dont think this guy has it without serious bottom end work! I want to see what their email says about it...

Dan

As I am sure you know, I am doing pretty much the same thing as you have. I have some questions though. I have the 98 DOHC and I am doing 11:1 JE pistons and all the stuff I mentioned before. I am thinking of designing a new intake manifold with a professor at school. The one thing that I wanna know is the deal with the closed deck? What does that mean? I hope I don't sound like an idiot, but I'll say it once again, I am into retro hotrods. We usually don't worry about things being high tech. Most times, people like me even refuse to use things like electronic ignitions. Haha. I am going to do the heads after I get the bottom half done. I might have access to a flow bench, so I am sure that will help me out greatly. I really want to know about this closed deck stuff though. Can ya help a brotha out?

Nathan
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Old 11-30-2002, 07:12 PM   #17
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I think Im gonna raise the flag on this one
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Old 12-01-2002, 02:43 AM   #18
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Quote:
Originally posted by Albert


3.25" id from MAF
3.00" id at throttle body
P/N: 14457AA111

The one I saw on MY93 1.8L engines "looked" smaller and had a pigtail. But, who knows. The car was also from out of state.
Its the same. My 95 is a little different, it has some "snorkels" but is the same diameter (Ive seen 93/94's too with the different pipe)
Quote:
Originally posted by WRX 555 STi
Kostamojen - Raising the rev limiter doesn't "necessarily" give more power to the car.

~Anthony.
Of course it does!!! When you have cams designed for a higher redline
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Old 12-01-2002, 02:49 AM   #19
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Would the "snorkels" and "pigtails" that everyone is referring to be the torque tubes? (the tubes on the intake that draw ambient air for more torque at WOT) At least that was what was explained to me????
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Old 12-01-2002, 03:17 AM   #20
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Quote:
Originally posted by Tattoo Collector
Would the "snorkels" and "pigtails" that everyone is referring to be the torque tubes? (the tubes on the intake that draw ambient air for more torque at WOT) At least that was what was explained to me????
The two dinky tubie thingies that go off of the pipe is what I meant by "snorkels":



And you can see that my pipe is nice and big, but I'm not running that cone air filter right now.

And this is his filter/pipe that is just IMHO a early 1.8/2.2 OEM pipe like mine minus the tubies:

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Old 12-01-2002, 05:26 AM   #21
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Quote:
Originally posted by Tattoo Collector
Would the "snorkels" and "pigtails" that everyone is referring to be the torque tubes? (the tubes on the intake that draw ambient air for more torque at WOT) At least that was what was explained to me????
FWIW those have NOTHING to do with torque...they are nothing more then a resonance chamber.

jeremy
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Old 12-01-2002, 05:35 AM   #22
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They emailed me back:

my email:
Hi, I saw your website the other day, and would like more info on your '250HP n/a Impreza.' What is the "Modified Runner to Throttle Body" mod? I can't tell from the pictures. Also, does that car have stock headers, or aftermarket? If aftermarket, which ones?

their reply:
Hi, thanks for writing us. The runner mod is an OEM Runner from a '96 legacy. It provides the runner with all the hoses for oil to go back into the engine rather than an oil can. The '96 legacy ran the same MAF sensor without the second air box, so it was easy to adapt it to the '99. The car has borla headers, hi-flow cat, and cat back system from GReddy EVO. There is also a lightened flywheel. We are working on a hi-compression short block which will bring the hp to over 300hp without a turbo.






I think their butt-dyno's are a little off...

-s-
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Old 12-01-2002, 09:19 AM   #23
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umm, those little tubes on the intake are there simply so mechanics can get the intake assembly off safely without having to wait for the engine to cool. they are grab handles, they have no other purpose. the OEM single airbox intake works best from what i've found...if i had a newer subaru with the dual box setup, i would track down and older one.

it's a nice car (except for the ver. 6 wing), but unless those cams seriously jack the torque in favor of top end power, the 250hp figure sounds suspect to me.

210~220 with headwork and streetable cam profiles in addition to those mods, i would believe.

i'm assuming those are cobb stage 3 heads (?)

Last edited by RaceCarRiot; 12-01-2002 at 09:32 AM.
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Old 12-01-2002, 02:37 PM   #24
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I'll have to agree, unless there is more done to that engine it seem very unlikely it's pushing anything close to 250hp NA. Their "modified runner" will help to smooth out the power delivery above 3400 rpms to redline - I can also vouch it doesn't make the engine feel as buzzy or strained but it's certainly not worth 30hp.


Jeremy, Any technical insight as to why Subaru would omit the pigtails on the 2.5L 96-97 Legacy intakes, but use the same intake with pigtails on the smaller 1.8/ 2.2 applications?
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Old 12-01-2002, 02:49 PM   #25
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Quote:
Originally posted by Albert
Jeremy, Any technical insight as to why Subaru would omit the pigtails on the 2.5L 96-97 Legacy intakes, but use the same intake with pigtails on the smaller 1.8/ 2.2 applications?
most likely because the 1.8-2.2 applications ended up with a strange intake resonance that the 2.5 did not. that or the actualy main filter housing had room to correct for the noise w/o the use of the additional resonance chambers.

jeremy
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