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Old 08-22-2002, 07:02 PM   #1
joe_white
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Default Cheapest and most reliable way to get 300 hp?

300hp is my goal for my 2002 wrx. However i want to leave the car as close to stock as possible and try to do it with basic mods but i'll get it however i can take it. Mostly i don't want to loose any driveability like check engine lights and so on.
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Old 08-22-2002, 07:50 PM   #2
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Default Re: Cheapest and most reliable way to get 300 hp?

Quote:
Originally posted by joe_white
300hp is my goal for my 2002 wrx. However i want to leave the car as close to stock as possible and try to do it with basic mods but i'll get it however i can take it. Mostly i don't want to loose any driveability like check engine lights and so on.
300 bhp is easy, but 300 at the wheels is more difficult and not as close to stock.
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Old 08-22-2002, 08:10 PM   #3
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I know it's easy but how in the way i want?
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Old 08-22-2002, 08:34 PM   #4
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Here's what I wanna do when I get the time/money to do it:

MBC @ 16PSI = ~255HP (2.5 PSI difference for my car)
PDE Uppipe = ~265HP
TurboXS Stealth = ~280HP
Silencer hack & filter box extension = ~282HP ( homemade CAI)
Samco I/C hoses = ~290HP (per their site, 7-10HP increase)
Colder Plugs = ~291HP ( hehe, just for the safe side of things)
Underdrive pulleys = ~300HP

Now, you've hit around 300HP crank without having anything electronic except maybe a CEL fix (just to be on the safe side)
Slap in a mapped Unichip or a Yoshio tune for all this stuff and you'll be well over 300HP... I guess ~330HP maybe, but your guess is as good as mine.

The numbers are pretty conservative, there might be more power hiding between those numbers... but it's a very good insight on what to look for.

Send your turbo to FP & you'll probably hit 350+HP!! It's pretty easy to find things to upgrade in our beasts... Total cost without Unichip? Should be around 1250-1300$ +tx which is pretty cheap for 300HP!! With the Unichip? Can't remember 'cause Shiv's site is down... YES Vishnuperformance.com is DDDOOOWWWNNN
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Old 08-23-2002, 09:58 AM   #5
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Quote:
Originally posted by joe_white
I know it's easy but how in the way i want?
OK, I see you mean crank HP.

TXS stage II kit is under $2000 dollars and 302 crank HP with 93 octane map. I did not make the air box mod, but did do the multipointal grounding mod with welding lugs and soldered connections. I added the TXS TMIC with the metal "Y" pipe, to make the same high boost with less strain on the turbo, and to help cool the intake charge. That should be give some more HP, but the TXS dyno results are not in yet. All of these mods can be installed and removed by one person in the convenience and privacy of your garage or driveway. Thus you can easily go back to stock at any time. My WRX still has the uppipe cat. The TXS high flow cat replaces the stock downpipe cat and rear cat. For stealth, I can swap out the magnaflow muffler for the stock muffler in about 10 minutes. But I really like the look and low idle rumble sound of the TXS muffler. That helps with quick shifting without bothering with the tach. I have not hit the fuel cut-off much with the sound feedback.

So, at any time I can take my WRX to stock, and sell it to get something else. I wonder what that else can be? Say turbo 350Z with t-tops, or something else in 2003 or 2004? But then the WRX is fun to drive, and my wife thinks I made a practical choice for once. She disliked my last two Z cars.

I have no business relationship with TXS, but what I have now is a great product for all types of daily driving. It is much more flexible than the stock setup.

No CELs, no business with dealer service (bought the manuals, and scan tool and do it all myself), currently at 19,000 miles.

Oh I forgot, before I went this path, the car had a short shifter, and 17" prodrive wheels with performance summer tires (Ecsta Kuhmos and p03 Bridgestones. The stock wheels never went back on, since I use my (2+2)Z for snowy weather driving, with M&S tires plus radial chains under conditions where I have seen an over-confident Jeep driver slide into the ditch. Guys with 4 drive wheels have stopped my see why my Z goes so well on snow covered roads in the hills. The front wheels make great skis in 6 to 8 inches of fresh snow.

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Old 08-23-2002, 12:19 PM   #6
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I would say do the FP turbo upgrade...can't get more stealth than a reworked stock turbo that's good for 330 hp on stock fuel system!

Do an MBC for 1.1 bar, and free up the exhaust with at least a 2.5 inch setup. Reset ecu, go beat on it for 5 minutes, and you should be set with 300+ hp, for well under 2 grand.

Oh, and make sure you upgrade your rubber...can't be running around on crap tires with all that power, its dangerous enough with 227 hp!
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Old 08-23-2002, 12:25 PM   #7
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Quote:
Originally posted by annointed
I would say do the FP turbo upgrade...can't get more stealth than a reworked stock turbo that's good for 330 hp on stock fuel system!

Do an MBC for 1.1 bar, and free up the exhaust with at least a 2.5 inch setup. Reset ecu, go beat on it for 5 minutes, and you should be set with 300+ hp, for well under 2 grand.

Oh, and make sure you upgrade your rubber...can't be running around on crap tires with all that power, its dangerous enough with 227 hp!
Sorry, FP, in case you don't know, is "Forced Performance," a very reputable turbo shop that has a *special* turbo upgrade just for you '02 WRX owners! $630 IIRC...great bang for the buck.
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Old 08-25-2002, 03:31 AM   #8
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im sorry but subyrex's statement has some holes in it. first off the boost controller doesn't give 30 peak hp. it surely makes a big difference but what you get is more area under the curve. i can't say how much hp gain it is but it took off nearly .7 off my 1/4 mile time, that and an intake. as for the intake hack mod, their has been no evidence that it even gives any power as well as the homemade cai. samco hoses are debatable but couldn't hurt.

so if you want 300 crank hp these are two easy way.

1. txs stage 2, almost 300 crank hp but a friend of mine got his stage 2 setup plus uppipe and it was dynoed at 200 whp, 30 shy from the charts, which he later got tuned by cobb to get 230whp out of.
2. vishnu stage zero plus turboback
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Old 08-25-2002, 12:45 PM   #9
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Yes 'by!

Listen, every 1PSI upgrade on OUR cars generates about 9-10HP PROVEN!

So, depending on weather conditions you WILL see ~30HP or so at the crank. Notice the tilde? APPROXIMATION. If I would of said put the MBC @ 13.5 (stock) I still would of had better 1/4 mile times but no HP increase because of what you said, boost comes on quicker so mid range power is increased.

Also, that homemade CAI will get air that's NOT in the engine bay... so cooler air right? So, even if we have an intercooler, by providing already cooler air you tax it a BIT less so it's a little BIT more effective. Also, notice the smilie face AND the tilde?? MY butt couldn't fell the difference AT ALL from that mod, but just by my (and other peoples theory) that very small portion of heat that you substract from the intercooler will help so ~2HP was an approximation again depending on the weather.

I don't have real numbers for the hoses, but PER THEIR SITE you will see a 7-10HP crack increase.

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Old 08-25-2002, 02:50 PM   #10
christoph1371
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Reliable and smooth? Then why choose piggy backs?

Currently I am at 255 at the wheels (dynoed, of course).

3" M2 turbo back exhaust
jdm up pipe
FP turbo
samco intercooler hoses
LINK
k&n panel insert

I am running out of fuel now... so it's time for injectors and fuel pump.
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Old 08-25-2002, 03:21 PM   #11
jmott
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my piggy back has been perfectly reliable and smooth.
there is nothing inherently flawed about the piggyback concept, or the unichip.

on the other hand, every few days I see a post by a link owner having really weird and annoying issues...

hmmmm...


Quote:
Originally posted by christoph1371
Reliable and smooth? Then why choose piggy backs?

Currently I am at 255 at the wheels (dynoed, of course).

3" M2 turbo back exhaust
jdm up pipe
FP turbo
samco intercooler hoses
LINK
k&n panel insert

I am running out of fuel now... so it's time for injectors and fuel pump.
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Old 08-25-2002, 03:22 PM   #12
SubyRex
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Ya... but you forgot 1 word... CHEAP. FP turbo is cheap yes compared to brand new ones.

Link is cheap yes, for what you can do with it... but I seriously doubt that everyone in here would be able to keep that thing tuned all the time.

But if money was no object, FP + Link is a wise choice!!
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Old 08-25-2002, 11:35 PM   #13
christoph1371
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For my favorite fan is still in the house...muaaaaa

personally, i never hear of complaints from ANY unichip or link users Hell, i NEVER complain about my own too


thanks for the good chuckle
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Old 08-26-2002, 12:53 AM   #14
Diversion
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Quote:
Originally posted by SubyRex
Here's what I wanna do when I get the time/money to do it:

MBC @ 16PSI = ~255HP (2.5 PSI difference for my car)
PDE Uppipe = ~265HP
TurboXS Stealth = ~280HP
Silencer hack & filter box extension = ~282HP ( homemade CAI)
Samco I/C hoses = ~290HP (per their site, 7-10HP increase)
Colder Plugs = ~291HP ( hehe, just for the safe side of things)
Underdrive pulleys = ~300HP

Now, you've hit around 300HP crank without having anything electronic except maybe a CEL fix (just to be on the safe side)
Slap in a mapped Unichip or a Yoshio tune for all this stuff and you'll be well over 300HP... I guess ~330HP maybe, but your guess is as good as mine.

The numbers are pretty conservative, there might be more power hiding between those numbers... but it's a very good insight on what to look for.

Send your turbo to FP & you'll probably hit 350+HP!! It's pretty easy to find things to upgrade in our beasts... Total cost without Unichip? Should be around 1250-1300$ +tx which is pretty cheap for 300HP!! With the Unichip? Can't remember 'cause Shiv's site is down... YES Vishnuperformance.com is DDDOOOWWWNNN
Just to let you know, colder plugs actually take power away in favor of reliability. If they gave power, Subaru would have 1 step colder plugs in the WRX in OEM form.

Secondly colder plugs are useless with the stock turbo, as anything higher than 15.7 psi on the stock 13G turbo is blowing hot air (past effiency range).

227 stock with a 2.5 psi bump on the turbo doesn't equal out to 255 crank horsepower. You can get **maybe** 15 horsepower from going from stock boost to 15.7. Uppipes don't give 10 horsepower either, more like 5ish. The TXS stealth system definately doesn't give 15 hp..

Anyways, you will be hard pressed to get 300 crank on the stock turbo.

A little chart based on what i've seen...

Turboback = +12 (highly doubtful)
Boost controller = +15 (around this)
Intake = +1 to +4 (Seen the Blitz SUS make 4 horsepower before)
Unichip/ECU = +20 (around this, some people get higher)
Header (inlcuding uppipe) = +21 to +25 (yes, you better believe it)
Crank Pulley = +8 (on an average)

The above parts should put you in the 300 crank horsepower area; IF YOUR UNICHIP/ECU is TUNED PROPERLY.

Jay
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Old 08-28-2002, 09:49 AM   #15
Extraze
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just get NNNAWWWZZZZ !!! 400WHP !!!

YOU HEAR ME ??? NAWWWZZZ !!!!


J/K

- on a more serious note... if you want cheap HP, get the upgraded HP turbo - STI injectors and a better fuel pump, a good EBC would also help... and you will get pretty close to that 300HP ... i beleive you can even get above the 300HP mark, taken from the quotes on their websites !
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Old 08-28-2002, 12:34 PM   #16
annointed
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Quote:
Originally posted by Extraze

get the upgraded HP turbo
I think you meant to say upgraded FP turbo.
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Old 08-28-2002, 01:41 PM   #17
christoph1371
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HP = Hella Turbo or Humongous Turbo.
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Old 08-28-2002, 11:04 PM   #18
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Quote:
Originally posted by Extraze
just get NNNAWWWZZZZ !!! 400WHP !!!

YOU HEAR ME ??? NAWWWZZZ !!!!


J/K
You know, I'm really tired of comments like this. I mean, come on... how silly do you sound when saying NNNNAAAAWWWWWZZZZZZZZZZ !!! Hey, stop sounding like a little kid and start treating this proven safe power product with the respect it deserves! I'm not trying to start a flame war and I'm not trying to insult anyone, just trying to get people to realize that making statements like this only propagate the cyclic mis-understanding of Nitrous! It's not called NAWZZZ or NOS (that is a brand name), just plain old nitrous.
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Old 08-29-2002, 04:33 AM   #19
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Quote:
Originally posted by caryfd227


You know, I'm really tired of comments like this. I mean, come on... how silly do you sound when saying NNNNAAAAWWWWWZZZZZZZZZZ !!! Hey, stop sounding like a little kid and start treating this proven safe power product with the respect it deserves! I'm not trying to start a flame war and I'm not trying to insult anyone, just trying to get people to realize that making statements like this only propagate the cyclic mis-understanding of Nitrous! It's not called NAWZZZ or NOS (that is a brand name), just plain old nitrous.
Did you not see his J/K underneath all of that? He was just being silly.. geez...

Jay
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Old 08-29-2002, 02:23 PM   #20
il96
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Nitrous Oxide to be correct.
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