Operation 12 seconds at 6000ft

[Sinister]

I'm going back to bandimere again this year. Last year I got a best of 13.4. The plan is to install 1000cc injectors, a boost control solenoid, and get an E85 tune. We'll see if I can pull it off. If I can't, then it's on to a 20g-xt turbo, hardened engine mounts, perrin turbo inlet, and a true cold air intake that sits out of the engine bay.

Here's my mod list:
Engine Bay:
K&N Typhoon Short Ram Intake
IHI VF39 Turbo
Walbro 255lph Fuel Pump
Processwest TMIC w/ Silicone piping and Shroud
Ceramic Coated BPM Downpipe
BPM Midpipe with Resonator
BPM Catback
SPT Radiator Shroud
Cobb Turbo Heatshield
SPT IC Heatshield
Protune by Harvey Epstein

Traction Bits:
Enkei 17x8 45et RPF-1 Wheels
225/45/17 Pilot Sport A/S+ Tires
STi Pink Springs
Cobb 25mm F/R Swaybars
Perrin Spherical Bushing Endlinks
Eibach Camber Bolts
SPT F/R Strut Tower Bars

Brakes:
Brembo Calipers
Hawk HPS Pads
Goodrich SS Lines
ElF DOT 4+ Fluid

Transmission:
6spd STi Transmission
ACT Streetlight Flywheel
ACT XTSS Clutch
Kartboy Shortshifter with Bushings

Soon to be installed:
all shifter bushings (and I mean all...)
Outrigger Bushings
Subframe Lock Bolts
Group N tranny mount
TiC Crossmember Bushing

[Drews]

What boost are you hitting with the VF39?

[Wannabe]

E85FTW!!!

[Sinister]

I'm at 17.4psi max boost in 4th and above on the VF39.

[Sinister]

E85FTW!!!

Right? I hope it doesn't go out the window... I'm coming late to the alcohol game.

[Drews]

I'm at 17.4psi max boost in 4th and above on the VF39.

So why would you go with a 20g if you're trying to get into 12 second territory? I'd think that it would take you a long time to spool it. If you're gonna go 20g would you be looking into getting your intake/exhaust mani pnp'd and TGV deletes?

[Sinister]

So why would you go with a 20g if you're trying to get into 12 second territory? I'd think that it would take you a long time to spool it. If you're gonna go 20g would you be looking into getting your intake/exhaust mani pnp'd and TGV deletes?

So explain how getting a bigger turbo would make me go slower...

[Anub1s]

So explain how getting a bigger turbo would make me go slower...

Werd. Didn't quite get that part of your post Drews. There will be slightly more turbo lag, but not near enough to subtract from the benefits of going with the larger turbo and more power. The 20G is just slightly larger than perfect for the EJ25.

[Drews]

So explain how getting a bigger turbo would make me go slower...

That's not what I meant. I just think that if you're only goal is to get into the 12 second range you'd be better served getting something that's bigger but maintains the quick spool time.

[Drews]

Werd. Didn't quite get that part of your post Drews. There will be slightly more turbo lag, but not near enough to subtract from the benefits of going with the larger turbo and more power. The 20G is just slightly larger than perfect for the EJ25.

My buddy takes FOREVER to spool....then again...he is on a 2.0

[Sinister]

That's not what I meant. I just think that if you're only goal is to get into the 12 second range you'd be better served getting something that's bigger but maintains the quick spool time.

Ahhh.. That's where you're wrong my friend. Local tuner got 400whp out of a 20G XT on E85 my friend. It's not a 20g... 20gXT. XT is Blouch's version of the HTA


here's blouch's description

Description
Application: Subaru WRX/STi
Horsepower: 470HP

While full ball bearing performance tubochargers have their place, we realize they are not for everyone. Because of this, Blouch Performance Turbo has developed billet "XT" compressor aero specifically for our Subaru journal bearing customers - hence the new 20G-XT. These new 20G-XT compressor wheels really are a work of art: stronger yet lighter closed die forged aluminum alloy combined with state-of-the-art 5-axis CNC machining allows for tweaking the aero for even greater mass flow and efficiency from a given geometry.

But they are not all looksies - they really perform: the 20G-XT produces greater peak torque and peak horsepower when compared to the "old" 20G at the same boost pressure! Now that truly is bolt-on performance! But the performance gains do not stop there - BPT has developed a proprietary jounal bearing turbine wheel and shaft assy. that performs extremely well with the 20G-XT aero. And BPT is offering three (3) Subaru turbine housing options to tailor the 20G-XT to your specific application: 7cm2, 8cm2 and 10cm2 and a 3" bellmouth inlet option. All of this is wrapped up in a bolt-on package for your Subaru complete with steel oil drain tube, coolant lines, turbo mounting gaskets and adjustable upgrade actuator as standard issue. Don't settle for anything less than the best performance turbo technology for your Subaru - order your BPT 20G-XT today!

[Sinister]

Also Drew... at the same power... we get .7-1.1seconds slower up here at altitude... So my 12 second WRX could more or less be an 11 second WRX at sea level.

[Drews]

You have educated me sir!

[Drews]

Ahhh.. That's where you're wrong my friend. Local tuner got 400whp out of a 20G XT on E85 my friend. It's not a 20g... 20gXT. XT is Blouch's version of the HTA

I really wish I had an AWD dyno

[mule]

Hey Kevin,
Which tuner are you going to go with? Where are you getting the XT from?
I'm still hoping to go stage 3 this summer on the WRX, but, $$$$ will dictate. The turbo swap is not really the issue, it's going to be the rear diff and trans upgrades needed for the 400whp thing. I still have to do the GF 2.2 swap too. Oh joy....