To get 200 whp?

[Crash477]

i know this has been covered before, but here we go again.

I would like to get my 02 2.5rs upto about 180-200 whp. Wednesday my COBB CAI will be here, so then I will be COBB stage 1. then i want to go stage 2, and eventually stage 3. With stage 3 what are the expected whp #s? or what is the best route to get 180-200 whp without turbo or supercharging? will i need a chip? if so which are good for the rs?

thank you,

Steven

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[TGITI]

COBB has a forum with some knowledgable individuals. A post in the RS/TS forum might yield you some stage/power figures from member dynos.

[RS_to_WRX_swap]

NAWZ

[rawrFERNY]

whats wrong with going turbo?

[Kevin Thomas]

Originally posted by Crash477
i know this has been covered before, but here we go again.

I would like to get my 02 2.5rs upto about 180-200 whp. Wednesday my COBB CAI will be here, so then I will be COBB stage 1. then i want to go stage 2, and eventually stage 3. With stage 3 what are the expected whp #s? thank you,

Steven

http://cobbtuning.com/impreza/powerpackage3.html

"With the Stage 3 Power Package, you achieve the ultimate in naturally aspirated 2.5L performance by shattering the 200bhp mark. All this is done with incredible reliability and drivability."

[Ghomer1]

Nitrous is really the the only way to do it without spending an arm and a leg.


Stage 3 is bank I believe....

[LetItSnow]

I'm pretty sure 200whp will cost a fortune for an NA build. The $/hp ratio on the stage 3 is a little rough, especially if you have to farm out some of the work. If I was going to go that far, I'd probably get a pro WRX swap and a reflash.

[Matt Monson]

I would say that you are not going to see 200 wheel horsepower for less than $10,000. Do you realize that 200 whp is like 300 at the crank? Without a custom manifold or ITB's it just isn't going to happen, period! And really the max that any streetable RS could reasonably see is 240-250 Chp. Dcoty is currently putting down numbers that are very comparible to a stock WRX, and he has one of the best built EJ25's around. And trust me, you won't find anything better on Cobb's forum. I have the most built engine of anyone that frequents their forum, and I haven't even done my bottom end or bumped my compression,yet.

Now if you want 200 at the crank, that is easy. My set up probably has that. I have the full Cobb stage II bolts ons of CAI, headers,Cat back, and pulley along with the spicy cams. Even the mild cams will get you around 200 at the crank...

[Patrick Olsen]

Yeah, what Matt said!

Pat Olsen
'97 Legacy 2.5GT sedan (Cobb Stage 1 heads, Street cams, MRT exhaust, Injen intake, ~40hp over stock on the dyno)

[MattDell]

Just spend that money on an EJ20 if 200whp is your goal.

[impr25rs]

What Monson mentioned is true. A 200whp RS is going to get you into the $$$ and I mean a lot. Here is an example of Matt's 250 hp RS

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

This RS is about as much as it can get, probably comperable to that of Dcoty's. I know Rallitek, in PDX, has a RS with about 161whp, and that thing is running a Unichip to make everything work. You are going to spend a lot of money to get hp. If you want this you should have gone Honda. I my opinion RS are suppose to have moderate hp with a KICK from a massive amount of torque(something Hondas' don't have). Combined with handling they make great cars, capable of beating out STi's and WRX on the autocross.

[1fastrs]

Why spend $10,000 going N/A when you will get 200WHP, when you can turbo your car for the same price and get 285WHP, and maybe even more if you are lucky enough. People told me that you just need the right tools and the right know how to do it.

(Just buy a 22B from the UK)

[Nicklbrso]

Originally posted by impr25rs
What Monson mentioned is true. A 200whp RS is going to get you into the $$$ and I mean a lot. Here is an example of Matt's 250 hp RS

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

This RS is about as much as it can get, probably comperable to that of Dcoty's. I know Rallitek, in PDX, has a RS with about 161whp, and that thing is running a Unichip to make everything work. You are going to spend a lot of money to get hp. If you want this you should have gone Honda. I my opinion RS are suppose to have moderate hp with a KICK from a massive amount of torque(something Hondas' don't have). Combined with handling they make great cars, capable of beating out STi's and WRX on the autocross.

Seriously, what kind of wing is that?

[Slack]

That is an STi tri-level titanium wing from the S201 Impreza



Mick

[cew25]

are you planning on doing any tranny work, go to 200 whp?

[Crash477]

Well my ideal goal would be to get my car to 180whp (hopefully), but is 160 whp about the max for my RS? If so, what does that equate to in Chp? I originally didnt want to turbo my RS because I wanted reliability. However if I did an EJ20 swap, I'm sure it would be just as reliable as a WRX. I want to have my car for about 4-5 years, and it is my daily driver. I just want it fast, and driveable, and reliable. I was planning on going stage 2 plus cams. I already have stage 1.
Yes I would aslo plan on doing some tranny work, probably when I need a new I would go with the Exedy Organic st. clutch.

Realistically how much would I be looking at to do an EJ20 swap to get it up and running just like a WRX? By doing a reflash, that puts it to what hp #'s?

Thanks to all for your input, I greatly appreciate it.
Steven

[crk4]

Bro, why dont you check out the conversions forum.

Your best bet for this WILL be a WRX swap...factory swap, MOST reliable out of building your 2.5 or going AFI. You just wont have torque for crap! Spending 10,000 on a 20,000 car to make 200whp just doesn't make any sense!!! For that kind of money you could get MANY MANY cars.

if anything, I would do a WRX swap. Swaps arent that hard from what I've heard. Just make sure to get the right ECU, etc. Then you don't have to worry about the engine leaning out and blowing the hell up. A swap may seem out of the question for you, but its the best route for the money and goals...then you have the option of putitng the PLETHORA of aftermarket WRX parts on it to get more HP.

Sorry to bash you, but why did you spend all that money on a cold air intake? So it would look nice? You could have just done the Snorkusectomy with a K&N Panel filter. CAI imo doesnt do crap but make it sound fast and lean out the engine a little.

[impr25rs]

Nicklbrso I just gave him an example, that doesn't mean I like the look of it.

Secondly, a WRX swap will get you good reliability and pretty dang good power. It is all up to what you can find. A fairly new longblock, a full ( I mean FULL) and complete ECU and harness, and a lot of time to do it. I know I-Speed specializes in this sort of thing. Check them out, I am not going to make any recs. but they are the gods of this thing. I know that it can be done locally too because I have seen an RS in SportCompact or Super Street with a WRX conversion. Just remember the harness is the devil But it is manageable.

crk4, the CAI is a vast improvement over the Snork+K&N, I don't mean in peak performance, but the overall gain in the power band on both the hp and torque. True that it is not very useful by itself, but with headers or exaust it is (or a combination of the three). I got my INJEN CAI brand new for $185, hell a PDM and K&N were about $110 or a Ganzflow and K&N were $160. I think that it was worth it. Maybe that is just me. I mean no bash by this, I just went the CAI because for a little bit more it gave a better overall performance.

[Crash477]

Yeah from what Ive heard the CAI is one of the best improvements one can do to a n/a car, and since I have the exhaust as well, it helps alot. I believe COBB said somewhere around 13hp gained (intake and exhaust). so not bad. looks like I have some thinking to do.

thanks,
Steven

[scoobyred]

read this forum answers your question on 200 whp http://www.wrxforum.com/cgi-bin/ulti...c;f=4;t=001340

[Homemade WRX]

Originally Posted by MattDell

Just spend that money on an EJ20 if 200whp is your goal.

agreed...swapped and am loving it!!!

[Jitenshakun]

These guys have only recently started doing Turdo cars, they have been strictly N.A. for years. TechWorks Engineering

They seem to know all the tricks.

-J

[Tim Sanderson]

Make up your own mind. It's your car. Leave it, build it, swap it, kit it. It has all been done. We can (and are) sitting here for a month or two bickering back and forth about what is better.

Apparently kits will destroy your engine, swaps keep getting cheaper, and n/a builds are one wicked investment.

Personally I think 200 whp can be done. Will it? We'll see.

[scoobyred]

monster na are fun to have and you can bet a turbo car at an auto cross event with na ie better torque.

[Crash477]

glad to see this thread back