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Old 01-28-2002, 01:18 AM   #1
knightsnke
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Default best way to add hp

What would be the easiest way to add 20hp to my wrx? Something that is car-friendly, and easy to install. Money isn't a problem. thanks all
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Old 01-28-2002, 02:08 AM   #2
wolf8314
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Sti Sticker haha

Kidding ......i always suggest making your car breath better.....intake and exhaust. Doubt youll get 20 out of it though....but you might.

Wolf
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Old 01-28-2002, 02:58 AM   #3
Verist
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Manual Boost controller.. from Dawes Devices, $35. Installs in a few minutes. Do a search on them to find out more good(cheap power) and bad (partial throttle boost).

Regan-
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Old 01-28-2002, 06:22 AM   #4
lakepop
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nitrous!
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Old 01-28-2002, 08:16 AM   #5
bbbradley
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Would an aftermarket ECU gain this much hp on a turbo car? I imagine the factory mappings are fairly conservitive, so a little tuning might free up a bunch of HP.

/bill
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Old 01-28-2002, 10:52 AM   #6
Turtle
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Check out this article from Import Tuner:

http://www.importtuner.com/archives/...201_tech02.jsp
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Old 01-28-2002, 07:57 PM   #7
rob12
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make a manual boost controller yourself for $5....some guys are running 13's with just that. as always, do a search
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Old 01-28-2002, 08:57 PM   #8
Penguinking
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u can make the DIY manual boost controller, but that would involve having to get a boost gauge too, so that adds $$$. you can make a CAI for 20$, but its questionable whether it adds hp.

easiest way???? buy the new K&N air filter for the wrx. doesnt add 20 hp, but its the "easiest" way, if you're really that lazy.

next easiest would probly be a unichip, which will definetly add hp to your car.
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Old 01-28-2002, 09:03 PM   #9
ScoobyBoy
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umm...i suggest intake, exhaust, and headers?
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Old 01-28-2002, 09:13 PM   #10
White4drWRX
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get a manuel/electrical boost control....
and turn the boost up to 15 - 16 psi...
easy 20+ hp...
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Old 01-28-2002, 09:40 PM   #11
PureWRX
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Uppipe!
May not add 20 hp alone but it will add enough power, in conjunction with earlier turbo spooling, that you will definitely notice the difference. Add a boost controller to that, and you'll be running easily over 20 hp no problem.
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Old 01-28-2002, 11:38 PM   #12
fukamoto
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Add a boost controller like everybdoy said and push up the PSI. But if money is no object, why only 20Hp? I'd probably get an Apex N1 Cat-back exhaust (only becuase i love apex...and their silencer), a nice running intake, boost controller for liek $20, and headers? But if you want to keep it cheap,simple. Boost controller.

Derek

PS. Hope this helps.
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Old 01-29-2002, 09:33 AM   #13
gtguy
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Don't just add a boost controller and push up the psi. That's wrong, and potentially damaging to your engine. Anything past 16.5 psi (14.5-16 seems to be the sweet spot) and the ECU begins pulling timing. Eventually 18 psi will be slower than 15 psi, when running an MBC.

Oh, and get a bleed-type MBC, like the Turbo XS High Performance model, not a simple ball-and-spring. With the bleed valve, you can tune out most of the full boost at part throttle issues that make running MBCs so worrisome for many WRX owners.

The obvious answer is that you don't need more power. That car is plenty fast, unless you're doing track days or are turning it into a 1/4-mile runner. (Just grandma weighing in again)

Kevin
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Old 01-29-2002, 10:29 AM   #14
Torch
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I would go with the up pipe or a turbo back.

Torch
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Old 01-29-2002, 04:09 PM   #15
wrxlvr
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I have a MBC if you are looking to buy. Never used. Make sure you have a boost gauge before using it though, and don't go higher than 16psi. Send me a message if you are interested.
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Old 01-29-2002, 06:01 PM   #16
ldivinag
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Quote:
Originally posted by wolf8314
Sti Sticker haha

Kidding ......i always suggest making your car breath better.....intake and exhaust. Doubt youll get 20 out of it though....but you might.

Wolf
he, he... i was gonna recommend the chrome STi oil filler cap...
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Old 01-29-2002, 06:21 PM   #17
DELMAN
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I would go with turboxs stage 2 very drivable and 55hps.
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Old 01-29-2002, 08:52 PM   #18
Penguinking
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Quote:
Originally posted by DELMAN
I would go with turboxs stage 2 very drivable and 55hps.
also check out the forced induction forum - theres a good thread comparing the turboxs stage 2 to the vishnu stage 0. both offer humongous power gains for relatively low price. (i think both kits are in the 1000 dollar range, and for 35-45 hp thats a good deal)

installation might be tough if you dont have the right tools though...especially when installing the uppipe for the stage zero
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Old 01-30-2002, 01:46 AM   #19
dRu888
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<img src="attachment.php?s=&postid=1431422" border="0" alt="">
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Old 01-30-2002, 02:54 AM   #20
henryh
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Default Re: best way to add hp

Quote:
Originally posted by knightsnke
What would be the easiest way to add 20hp to my wrx? Something that is car-friendly, and easy to install. Money isn't a problem. thanks all
If money isn't a problem then the degree of difficulty of installing a part shouldn't be a problem either, right? I mean, if it's too hard, then you can always pay a professional to do it, and since money isn't a problem...
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Old 01-30-2002, 11:09 AM   #21
FastPorsche
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Adding a Unichip will allow a trained person to map your fuel, ign, and boost map. I am talking about the same product that cobb uses not the other "UniChip"s that are on the market I recomend this one not because I am a dealer but. I became a dealer because its the best one. It has the higher resolution than the stand alone units. you wont get 20 HP though more like 40+ from this alone.
http://fastforwardperformance.com/
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Old 01-30-2002, 05:48 PM   #22
ScoobyBoy
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cai, headers, and exhaust?
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Old 01-30-2002, 06:51 PM   #23
Vishnu Performance
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Hello,

Joel here. FastPorsche, what are you talking about when you differentiate between Cobb's Unichip and the other unichips. I believe there is only one unichip. It is made by Dastek in South Africa.

What the vendors do with the Unichip once it arrives at their doorstep is up to the individual vendor. The vendors, however, do not reinvent the unichip. All unichips have the same resolution and are subject to the same limitations. All unichips are programmed via the same software and hardware. All unichips use the stock sensors. The only major difference comes up with load references. And each vendor has their own set of preferences.

Joel Gat
Vishnu Performance Systems

Last edited by Vishnu Performance; 01-30-2002 at 10:47 PM.
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Old 01-30-2002, 07:18 PM   #24
Scoobydooo
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Did you see the part where i said I was a dealer you dont have to sell me on the UniChip (theProGram) I know what it is. I have known Kevin Bukler for years and have been out to CA to help out the GT3 team cars he owns. There are some people out there marketing things called Unichip that are not the Dastek Unit. I will see If I can find them and E Mail It to you. Yes TRG is the only Importer of the Unichip but I am a authoized dealer. I buy them from TRG like every one else in the USA. Your price of 995 inculdes dyno time right the Unichip box is only 595 so you get 400 for install and dyno.

Nice of you to post a add in response to my Post dont worry about me I'm 2200 miles away from you and dont care to take your clients there are plenty of cars here for us to work on.

Not sure about your last Paragraph, "a kit that improves the safety of the stock car " I usually make cars safer by making them handle, stop, and by using saftey Equipment like in house built custom crome molly roll cages. Horse power is a easy sale but not always in the best intrest of the car owner.

I would like to see the WRX that only has a Uni-Chip do 0-60 in under 5, I would put a 993TT against it any day, That car was rated at 4.9 sec. 0-60, it makes 405 HP stock I'm not sure about your stats but maybe. If it can get from 0 to 60 in under 5 why cant it get down the 1/4 in under13?

hate to call you on it ( in public)but your numbers dont add up
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Old 01-30-2002, 07:48 PM   #25
Vishnu Performance
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Hello,

Joel here. I assume Scoobydooo = FastPorsche? I didn't mean to offend you, only to clarify that no unichip has better resolution than other unichips or anything like that. Our Stage Zero kit includes a unichip, an up-pipe, an underdrive pulley, a boost controller, and colder spark plugs. That kit is what provides the approximately 38 extra wheel horsepower. On an otherwise stock car, a unichip alone will not provide much extra horsepower. I believe from our experiments on the dyno with the Electromotive TEC-II (a stand-alone ECU costing $2k that is aimed at a different market than the unichip and is FAR more capable) that an ECU can only gain somewhere in the neighborhood of 10 hp without additional parts. I could be wrong, but that's what our data shows.

As for increased safety margin, we are talking about the safety of the engine management and the engine itself, not safety in terms of rollcages. The stock up-pipe includes a pre-cat that, from several that we've seen (we've replaced some 50 up-pipes in-house), can start to fall apart. With 10 or 20 thousand miles, the stock pre-cat looks pretty bad. I fear that Subaru will be dealing with blown turbos at some point as these pre-cats fall apart and send bits into the turbo turbine.

Additionally, by removing the pre-cat and switching to an aftermarket up-pipe (not just ours - these benefits accrue with any aftermarket, catless up-pipe), we reduce engine backpressure, which reduces reversion and lowers EGTs. This also increases the margin of safety on which the motor is running.

As for acceleration times and numbers, like I said, we don't have "official" times, just customer testimonials. However, enough customers are running mid 13 second quarter miles that we feel pretty comfortable guessing that such numbers are accurate. As for why 0-60 is proportionally faster than the quarter mile time - the WRX takes off from a standing start like few other cars. That's part of the beauty of all wheel drive. The WRX runs out of steam at higher speeds compared to its launch.

Finally, this is not a hijack of your post, rather, the original poster asked how to get an additional 20 horsepower. In response to a post stating that there are different unichips, I chimed in pointing out that for $995, a customer can get the same unichip as all the vendors sell, with several other parts, and get far more than the originally requested 20 hp.

Joel Gat
Vishnu Performance Systems
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