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Old 06-01-2006, 02:09 AM   #1
sweetrex
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Default 200hp at the crank. . . Is it possible?

I have a 2006 Impreza 2.5i rated at 173hp at the crank. Is there a way to get closer to 200 reliably? And, no, I cant afford to swap a WRX engine and trans.
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Old 06-01-2006, 02:14 AM   #2
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hmm.... you will need some kind of engine management to get there me thinks... Not sure if ecutek has anythign for the 2.5i setup or not

I know some people are strapping on superchargers, which I am sure should get you to 200crankHP... Not sure how reliable ti would be though...

I would check with the guys in the NA forum...
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Old 06-01-2006, 02:33 AM   #3
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Headers, intake, exhaust, no cats, crank pulleys, and engine management... Seems like alot for some small gains, but that would probably net you 200hp. Not that you will think it is "enough" but it will probably be 200chp...

Nick
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Old 06-01-2006, 04:12 AM   #4
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Old 06-01-2006, 08:40 AM   #5
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I'd say a 30 shot of nitrous, heck a dry kit, would be quite the cheapest way to do this reliably
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Old 06-01-2006, 11:07 AM   #6
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Quote:
Originally Posted by verc
I'd say a 30 shot of nitrous, heck a dry kit, would be quite the cheapest way to do this reliably
'Cheapest' would crossover to 'most expensive' depending on usage.
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Old 06-11-2006, 10:50 PM   #7
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Old 06-12-2006, 01:03 AM   #8
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Quote:
Originally Posted by sweetrex
I have a 2006 Impreza 2.5i rated at 173hp at the crank. Is there a way to get closer to 200 reliably? And, no, I cant afford to swap a WRX engine and trans.

Would a turbo kit qualify as one of the things that you do not want to do?
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Old 06-12-2006, 01:10 AM   #9
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Quote:
Originally Posted by Sko
Headers, intake, exhaust, no cats, crank pulleys, and engine management... Seems like alot for some small gains, but that would probably net you 200hp. Not that you will think it is "enough" but it will probably be 200chp...

Nick

and by that time.... you could have swapped in a turbo motor.
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Old 06-12-2006, 02:24 PM   #10
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cams, lighter internals and exhaust and dual intake and you can get past 200hp
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Old 06-12-2006, 04:14 PM   #11
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Quote:
Originally Posted by Happydude123
cams, lighter internals and exhaust and dual intake and you can get past 200hp

dual intake is where its at
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Old 06-12-2006, 11:00 PM   #12
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Quote:
Originally Posted by sumfoo1
and by that time.... you could have swapped in a turbo motor.
Right, show me. I'll even let you do it with your math. intake, header, exhaust, a pulley and e/m is the same cost as a turbo swap??

Pass the joint bud, I want a hit.
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Old 06-12-2006, 11:56 PM   #13
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Quote:
Originally Posted by sumfoo1
and by that time.... you could have swapped in a turbo motor.
Yea, I think $1200-1500 could get you to 200chp "cheaply" and probably up to $2000 depending on what all you get and where you get it from.

The swap is an extra $3000 at least, or you could do some cams and high compression pistons and keep the beast NA.

Nick
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Old 06-13-2006, 12:08 AM   #14
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Tell the silly swap buy how it is time. IF you were inattentive enough to buy the neccesary parts all new you would still be under $3000. It is very difficult to swap a WRX motor for that money, heck its hard to buy a WRX motor for that much money. Then you have the uppipe and downpipe and you have the cost of 40 - 100 hours of swap time. At the $40 an hour my time is worth thats a lot of money.

Now if your goal is 300 chp then a swap is the smart thing to do. STi motor is $3000 or $4000 plus another $3000 for the tranny. Oh then the 04 ECU to get around the newer car's immobilizer. And then you need to buy a rear diff and axles. So for $12000 grand you have a Sti powered RS. Sweet!

Actually the OP has an '06 so it already has EL headers and and AVCS which no one makes cames for yet. Perfect Power Pro will work and Hi flow cat and catback are still doable.

But frankly you just bought the effing car and anything you do to it will jeopardize your warranty which is emmensely stupid. Look spend $700 and buy a used set of tires and wheels from someone on here or on WWW.rs25.com and go auto-x this thing in GS or where ever they put the new RS. But dont tell your dealer because again your warranty is toast. Keep the SCCA stickers and local club stickers off and just learn to drive the thing.

Later on (5 years) you can take advantage of Subaru's decent depreciation and sell the thing privately. Take the money and buy a used WRX for $13000 and mod to your hearts content. Why people mod brand new cars is beyond me.

Have fun and auto-x that thing.

Last edited by Rally_wgn; 06-13-2006 at 12:15 AM.
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Old 06-13-2006, 06:13 PM   #15
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^ someone has never swapped a WRX motor into anything. I did mine in less than a week, for much less than $3000. Much, MUCH less.

But if all you want is 200 chp, get an intake, exhaust, lightweight pullies, and some sort of EM and you are there. Lets see- for all new parts 100+500+100+700= $1400 for 27 hp. It can be done much cheaper with used parts and some tuning. Have fun.
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Old 06-13-2006, 06:25 PM   #16
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Quote:
Originally Posted by Rally_wgn
Why people mod brand new cars is beyond me.
I can understand modding a brand new car. I just cant understand leaving the mods on the car when you go to the dealer to try and get something covered under the warranty.

But why buy a 2.5i in the first place if you want more power? could have easily gotten a used low mileage wrx for cheaper than that and with enough searching a used STi.
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Old 06-13-2006, 06:28 PM   #17
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Cams will probably net you the highest gains but start out with exhaust and intake and see how you like it. At the least it'll make your car sound sexy. Later on get a lightweight pulley and ecu reflash or comparative em. Then step up to cams. Then port and polish your heads, etc.

You CAN make your car put out some serious power in n/a trim, it just depends how much money you're willing to spend.

Last edited by WRXRallyBlue; 06-13-2006 at 06:34 PM.
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Old 06-13-2006, 06:36 PM   #18
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Speedy dont get me wrong there's nothing wrong with swapping its just that swapping into an '06 when its not even a year old makes absolutely no financial sense. Life happens. This board and others are full of ads where ppl have spent thousands of dollars on mods and then WHAM! something happens and now you have to sell either the parts or the car for pennies on the dollar because its modded,
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Old 06-13-2006, 07:06 PM   #19
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Swapping into an 06 is definitely stupid.
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Old 06-13-2006, 07:39 PM   #20
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Quote:
Originally Posted by WRXRallyBlue
Swapping into an 06 is definitely stupid.
Im with you! The engine in my 2.5i has barely 6000 miles on it, and there is no way i am going to find that low mileage of a WRX engine for less than 3500-4500 bucks. The point is, Im looking to keep the dependibility while bringing it up to par with something like maybe, a Golf GTI.

I have heard that few people have been able to strap a spendy turbo on their N/A subaru and keep it reliable. So I'm wanting to stay N/A.

By the way, Can anyone actually feel the difference a lightweight crank pulley makes?
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Old 06-13-2006, 08:03 PM   #21
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Quote:
Originally Posted by sweetrex
By the way, Can anyone actually feel the difference a lightweight crank pulley makes?
will you be able to feel the difference in going from 175 to 200 hp?

What will that give you a 0.1 in the 1/4 mile? Can you feel that?
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Old 06-13-2006, 09:19 PM   #22
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Quote:
Originally Posted by verc
I'd say a 30 shot of nitrous, heck a dry kit, would be quite the cheapest way to do this reliably
30-35 shot will do it. Don't listen to the haters $400-500 and you're there man. A 35 shot on your 2.5 is nothing. Go for it!
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Old 06-13-2006, 11:46 PM   #23
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Look as I stated in the thread i linked earlier. Intake is $100 -$125 used, OBX sells a Cat back on Ebay for $275, A hi flow cat from ebay is $40, install $50 tops, Perfect Power Pro with adapter harness so you cont screw with your warranty is $700 and a Pulley from Mr. Josh is $75.

So for $1300 or less will get you a little over 200chp. everything except the hi flow cat can be done in your driveway with a set of ramps. You'll still be under WRX power but your car will feel, sound and be faster.

Buy some used WRX 16's for $200, some R-compounds and AGX shocks, springs and swaybars and have fun at your local auto-x. You might even beat a WRX or two.
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Old 06-14-2006, 12:13 AM   #24
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Quote:
Originally Posted by Rally_wgn
Look as I stated in the thread i linked earlier. Intake is $100 -$125 used, OBX sells a Cat back on Ebay for $275, A hi flow cat from ebay is $40, install $50 tops, Perfect Power Pro with adapter harness so you cont screw with your warranty is $700 and a Pulley from Mr. Josh is $75.

So for $1300 or less will get you a little over 200chp. everything except the hi flow cat can be done in your driveway with a set of ramps. You'll still be under WRX power but your car will feel, sound and be faster.

Buy some used WRX 16's for $200, some R-compounds and AGX shocks, springs and swaybars and have fun at your local auto-x. You might even beat a WRX or two.

I bet if you through your $1300 in parts at this car vs the same car with only a 35 shot of nitrous, guess which one would win? I'd make that bet any day. Talking about warranty, man, a dry shot wouldn't be hard to get rid of either. Please don't mention ethics either. Adding and then removing ANY of these parts would technically be wrong.

A small shot of n2o all the way.
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Old 06-14-2006, 12:25 AM   #25
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tmarcel, now i admit my understanding of the use of laughing gas is pretty limited but its not exactly sustained power is it. Great for the 1/4 mile but not much else. You would still have the same slow feeling daily driver.

Now for the strip I would think that a shot n2o would be the most economical.
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