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Old 08-28-2017, 11:43 AM   #1
Sir Willihams
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Default Journey to 400whp

Looking for some advice and resources on breaking 400whp in my 02 wrx bugeye. I just recently purchased it and looking to put some more ponies to the asphalt. This car is my daily for work <20 miles per day and fun on the weekends. Below is my current setup that came with it, any help would be great!

EJ205 block
VF39 Turbo
FMIC
Short ram intake & suction pipe
U/P & D/P catless
HKS HiPower exhaust
Walbro 255 fuel pump
Sti pink injectors
Cobb Accessport with 93 map
BC racing coilovers
Whiteline rods and joints
Sway bars, racing bushings, mounts and braces everywhere.
5 speed... eeek!
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Old 08-28-2017, 12:06 PM   #2
6foot4geek
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I'm around 360 on stock motor and stock trans. 400 is possible with your setup but I doubt for long

If you want 400 reliably, RA gears or an STI trans, + EJ207 or built your current motors internals. Oh and of course, E85 duh!

Is your VF39 billet wheel or a unique fin count? The FMIC should allow you 24ish PSI on the VF39.
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Old 08-28-2017, 12:57 PM   #3
S_C_W
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as far as reliability when pushing a stock ej205, does e85 help longevity that much?
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Old 08-28-2017, 01:18 PM   #4
6foot4geek
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Quote:
Originally Posted by S_C_W View Post
as far as reliability when pushing a stock ej205, does e85 help longevity that much?
I'm sure this can be debated but E85 "burns cooler" so my understanding is cooler is one of many things that prolongs the life of an engine, also an AOS is a MUST to protect your turbo in a scenario like this.

On the stock motor upgrading your oilpan / pickup baffle can help too, as alot of issues can/will spawn from oil starvation (go figure).
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Old 08-28-2017, 01:53 PM   #5
mrsaturn7085
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E85 and/or a different turbo. A VF39 is going to be crying trying to get 400 whp out of a 2 liter.

E85 isn't for longevity, it's for getting more power out of your fuel. Note that you're effectively cutting your fuel tank size down by running E85.

Quote:
Originally Posted by 6foot4geek View Post
...also an AOS is a MUST to protect your turbo in a scenario like this.
No, it isn't.

Good maintenance and a conservative tune will help you far more than an oil pan...
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Old 08-28-2017, 02:05 PM   #6
aly33
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My friend had a 350+ whp wrx with 5 speed, my other friend had another wrx around 300 whp with 6 speed sti trans. They could go nearly same. And the sti trans swapped car was safer, reliable, and comfortable. 6 speed makes life easier and faster.
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Old 08-28-2017, 03:02 PM   #7
Samurai Jack
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Can you do 400WHP on a USDM EJ205? YES

Can you do it with a VF39 and STi Pinks? NO - need larger turbo and injectors, just to start

You don't need an EJ207
You don't need RA gears
You will need a stronger transmission, like an STi 6MT

An AOS is not about protecting the turbo

What you should include in your list is a better oil pick-up since OEM pick-ups are prone to failure, which leads to engine failure
- KillerB has one for the 2002 OEM pan
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Old 08-28-2017, 06:08 PM   #8
mrsaturn7085
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Quote:
Originally Posted by Samurai Jack View Post
What you should include in your list is a better oil pick-up since OEM pick-ups are prone to failure, which leads to engine failure
Or just a new OEM part... the Subaru pick-up was improved in the mid-2000's and while the KillerB part is built like a tank, $175 vs. $30 isn't exactly cheap insurance when the actual failure is quite rare.
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Old 08-28-2017, 06:11 PM   #9
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Quote:
Originally Posted by mrsaturn7085 View Post
Or just a new OEM part... the Subaru pick-up was improved in the mid-2000's and while the KillerB part is built like a tank, $175 vs. $30 isn't exactly cheap insurance when the actual failure is quite rare.
How are you defining "quite rare"?

I'm sure you have seen the KillerB thread on OEM Oil Pick-up failure, and those are just the ones we hear about.

To me, it was worth the $175 to ensure not having pick-up failure and resultant engine damage, but that's me.
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Old 08-28-2017, 07:49 PM   #10
mrsaturn7085
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Quote:
Originally Posted by Samurai Jack View Post
How are you defining "quite rare"?

I'm sure you have seen the KillerB thread on OEM Oil Pick-up failure, and those are just the ones we hear about.

To me, it was worth the $175 to ensure not having pick-up failure and resultant engine damage, but that's me.
I have seen the thread, yes. I am defining 'quite rare' relative to the vast majority of pick-ups on the road that do not fail compared to the incredibly small few that do. Yes, it would suck to be one of the few, but **** happens - you cannot prevent every failure, but I'd rather put my focus (and money) into issues that are far more common.

Last edited by mrsaturn7085; 08-28-2017 at 07:57 PM.
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Old 08-28-2017, 08:59 PM   #11
Sir Willihams
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Quote:
Originally Posted by Samurai Jack View Post
To me, it was worth the $175 to ensure not having pick-up failure and resultant engine damage, but that's me.
I definitely agree, $175 for piece of mind is well worth it.

I think I'm gonna be looking at a 2.2 stroker kit and a 6 speed sti swap. I think that will be the best foundation to work from. After that I'll be looking for the ideal turbo size and injectors to tune for a reliable 400whp. Don't want the build to be maxed to reach 400 but tuned moderately to reach it.
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Old 08-29-2017, 07:03 AM   #12
Samurai Jack
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Quote:
Originally Posted by mrsaturn7085 View Post
I am defining 'quite rare' relative to the vast majority of pick-ups on the road that do not fail compared to the incredibly small few that do. Yes, it would suck to be one of the few, but **** happens - you cannot prevent every failure, but I'd rather put my focus (and money) into issues that are far more common.
Not sure I would call it "quite rare" but I agree where we see so many instances of some type of failure on this forum, but when you compare to total number of vehicles sold, it wouldn't necessarily be considered the "norm".

I also agree, we can't prevent many things that happen because they are out of our control, but if it is within our control, like a better oil pick-up, I'll certainly give it serious consideration against results due to failure.
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Old 08-29-2017, 02:46 PM   #13
mrsaturn7085
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Quote:
Originally Posted by Samurai Jack View Post
Not sure I would call it "quite rare" but I agree where we see so many instances of some type of failure on this forum, but when you compare to total number of vehicles sold, it wouldn't necessarily be considered the "norm".

I also agree, we can't prevent many things that happen because they are out of our control, but if it is within our control, like a better oil pick-up, I'll certainly give it serious consideration against results due to failure.
To me, it's like carrying a winter coat with you every day in Vegas. YMMV, but I'll take my chances.
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Old 08-30-2017, 06:48 AM   #14
Titter
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EJ207 Spec C 4EAT

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an ounce of prevention is a pound of cure
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Old 08-30-2017, 12:18 PM   #15
monkeyposeur
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03 WRB GD 205/22T 20G-XT

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Moroso oil pickup is half the cost of the Killer B and works great. Not as pretty but not like you can see it anyway.
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