Another badass GC8 (GM2)

[JC]

I might not have my GC any more but I can't be negligent in constantly point out their superiority to this forum. haha

Topspeed's Time Attack L...







464hp 427tq @ 22psi; supposedly at 612hp now but no dyno chart


Weight: ~2600lbs

Mods list...
EJ257 BLOCK (2.7L I believe)
PORTED HEADS
272 AVCS CAMS
PORTED INTAKE
PORTED TGV'S
DC SPORT HEADER WITH MODIFIED 2.5" FLANGE
ULTIMATE RACING GT35R
ULTIMATE RACING DOWNPIPE
TIAL 44MM WASTEGATE
TOPSPEED 4" OVAL SIDE EXIT EXHAUST
TOPSPEED CUSTOM COLD AIR INTAKE
TOPSPEED CATCH CAN
TOPSPEED FUEL SURGE TANK
PWR ALLUMINUM RADIATOR
TOPSPEED CUSTOM FMIC WITH 3' PIPING
255LPH IN TANK WALBORO FEEDING AN EXTERNAL WALBORO AFTER SURGE
TOPSPEED ECUTEK ECU
TURBO XS UTEC
PE 850CC INJECTORS
ACT 6PUCK SPRUNG RACE CLUTCH
2006 STI 6SP
FULL SILKOLENE FLUIDS
RACING BRAKE 6PSITON 355MM FRONT BRAKE KIT
2006 STI REAR BREMBO BRAKES
HAWK DTC70 FRONT PADS
HAWK DTC60 REAR PADS
2006 STI CROSSMEMBERS FRONT AND REAR
2006 STI CONTROL ARMS AND LATERAL LINKS FRONT AND REAR
2006 STI GAS TANK WITH CUSTOM BAFFLES
2006 STI DCCD, ABS, AND COMPLETE WIRING HARNESS
2006 STI HID CONVERSION
2006 STI DASH, INSTRUMENT CLUSTER, CENTER CONSOL
2006 STI PEDAL ASSY
2006 STI MASTER CYLINDER, BRAKE LINES, ABS
2006 STI REAR DIFF AND AXLES
KW CLUBSPORT 2WAY COMPETION COILOVERS
KW FRONT AND REAR CAMBER PLATES
WHITELINE FRONT (27mm-26mm) AND REAR (26mm-24mm) SWAY BARS
CUSTOM FRONT AIRDAM
CUSTOM REAR SPLITTER
8 POINT ROLL CAGE
MOMO ACROPOLIS DRIVER SEAT
KIRKEY PASSANGER SEAT
AVCR BOOST CONTROL
TCDESIGNS REAR WING
STAINLESS BRAKE LINES
CASTROL SRF BRAKE FLUID
CUSTOM FRONT BRAKE DUCTS
CHATTERBOX INTERCOM SYSTEM WITH IPOD HOOK UP

[Kevin M]

Unpainted bolt-on flares FTL.


Everything else... oh my motherfucking uNf uNf uNf!~

[MattR]

I like it, looks hot...and OMG look at all that juicy power!

[tysonK]

Interior is nice.

[wrxkidid]

i agree with kevin. if they colored them they might look ok but still eh.

otherwise i want one!

[Joeyy]

What size rubber could I fit under the wagon if I did some trimming and bolted some of those flares on?

[JC]

Those are 285s but those fender flares won't fit your car.

[M3n2c3]

Originally Posted by Joeyy

What size rubber could I fit under the wagon if I did some trimming and bolted some of those flares on?

Eh, just do the trimming and forget the flares. Function before form, right?

I like the exhaust sticking out the side.

[MPREZIV]

I'll take two. One in black please... [drool]

[AtomicLabMonkey]

Who gives a shit what it looks like? Sounds fast to me.

[Libila]

I read that guy's build thread on RS25 all the way through the other night. That car is sweeet.

[Joeyy]

Originally Posted by Libila

I read that guy's build thread on RS25 all the way through the other night. That car is sweeet.

Link please?

[Libila]

Originally Posted by Joeyy

Link please?

http://www.rs25.com/forums/showthread.php?t=49054

[cody]

Sick.

I noticed Mike W built up an L too. Does the GC8 Chassis hold up ok under the loads associated with the mods and racing? No biggie?

[MikeK]

Originally Posted by cody

Sick.

I noticed Mike W built up an L too. Does the GC8 Chassis hold up ok under the loads associated with the mods and racing? No biggie?

The only things that don't hold up around that thing are eardrums

[sperry]

Originally Posted by cody

Sick.

I noticed Mike W built up an L too. Does the GC8 Chassis hold up ok under the loads associated with the mods and racing? No biggie?

When you weld in a beefy cage and replace all the suspension w/ STi stuff... there's really not much L left to wear out.

[JC]

Originally Posted by cody

Sick.

I noticed Mike W built up an L too. Does the GC8 Chassis hold up ok under the loads associated with the mods and racing? No biggie?

The GC was designed specifically to be a race car chassis. It wasn't until the GD that they designed it to fit 20 inch rims and maximize BOV sound projection instead of track performance.

[Libila]

Originally Posted by JC

The GC was designed specifically to be a race car chassis. It wasn't until the GD that they designed it to fit 20 inch rims and maximize BOV sound projection instead of track performance.

Bahahaha!

[sperry]

Originally Posted by JC

The GC was designed specifically to be a race car chassis. It wasn't until the GD that they designed it to fit 20 inch rims and maximize BOV sound projection instead of track performance.

Comedy... but back in reality, the GD was designed specifically to improve on the GC's lack of stiffness. That's where some the extra 200 lbs came from. There's a reason the GD never came as a coupe... the new super B-pillar required 4 doors.

[cody]

Pssh, whatever.

GC chassis comparison to the GD chassis
Pros

Subaru claims that the GD chassis is 148 percent and 82 percent stiffer in torsional and beam rigidity, respectively, than the GC chassis. This stiffness is primarily due to the addition of a steel "ring" which encircles the cabin at the B-pillar. Due to the increase in stiffness, the car has much better stability in corners and is easier to control at the limit. The GC chassis is so weak compared to today's cars that engineers called the body a "Watermelon frame", referring to how a watermelon shatters on impact.

In terms of safety, the GD chassis scored much higher than the GC chassis and earned a "Good" rating (highest mark) from the IIHS's offset crash test. 4 stars front driver, 5 star front passenger and 4 star side safety ratings from the NHTSA. In a magazine article from the Dec. 2005 Firehouse magazine (a periodical written and made for firefighters), Ron Moore writes how it is well-known that the Impreza chassis has great protection in its B-pillars. This side structure has 8 layers of high-strength, high-tension steel including a round steel bar running through the middle. The author notes how drivers simply walk away from horrific side-impact accidents.

Cons

The GD chassis gains nearly 200 kg in weight over the GC chassis. Most of this weight comes in the form of chassis stiffening as the car was made to meet every country's crash standards. The weight also hampers the cars maneuverability, transistions and turn-in capabilities.[citation needed] The GC Imprezas were notable for being very lightweight despite having AWD. The WRX Type R STI Version VI using the GC chassis, at 1260 kg, was lighter than the competiting Mazda RX-7 type RZ (1270 kg) and Honda NSX type S Zero (1270 kg). In this fashion, the GC chassis has a better advantage.

The author of the forementioned article also notes that the Jaws of Life need to cut the Subaru's B-pillars at certain points in order to cut through the car frame.[4] This information was not widespread before, so there have been many incidences where firefighters could not cut the B-pillars due to their structural integrity. This may become a concern if the driver or passengers need to be cut out of the vehicle quickly.
http://en.wikipedia.org/wiki/Subaru_Impreza_WRX

[JonnydaJibba]

"Rings of Saftey" or whatever.

[JC]

Originally Posted by cody

Pssh, whatever.

I don't know what wikipedia you are reading? It clearly says the chassis was stiffened for safety and not performance.

http://en.wikipedia.org/wiki/Subaru_...the_GD_chassis

Pros

Subaru claims that the GD chassis is 148 percent and 82 percent stiffer in torsional and beam rigidity, respectively, than the GC chassis. This stiffness is primarily due to the addition of a steel "ring" which encircles the cabin at the B-pillar. Rather than being for performance, the stiffness was added primarily to increase safety.

In terms of safety, the GD chassis earned a "Good" rating (highest mark) from the IIHS's offset crash test. 4 stars front driver, 5 star front passenger and 4 star side safety ratings from the NHTSA. In a magazine article from the Dec. 2005 Firehouse magazine (a periodical written and made for firefighters), Ron Moore writes how it is well-known that the Impreza chassis has great protection in its B-pillars. This side structure has 8 layers of high-strength, high-tension steel including a round steel bar running through the middle. The author notes how drivers simply walk away from horrific side-impact accidents.

Cons

The GD chassis gains nearly 200 kg in weight over the GC chassis. Most of this weight comes in the form of chassis stiffening as the car was made to meet every country's crash standards. The weight also hampers the cars maneuverability, transistions and turn-in capabilities.[citation needed] The GC Imprezas were notable for being very lightweight despite having AWD. The WRX Type R STI Version VI using the GC chassis, at 1260 kg, was lighter than the competiting Mazda RX-7 type RZ (1270 kg) and Honda NSX type S Zero (1270 kg). In this fashion, the GC chassis has a better advantage.

The author of the forementioned article also notes that the Jaws of Life need to cut the Subaru's B-pillars at certain points in order to cut through the car frame.[4] This information was not widespread before, so there have been many incidences where firefighters could not cut the B-pillars due to their structural integrity. This may become a concern if the driver or passengers need to be cut out of the vehicle quickly.

[cody]

You changed facts!

[sperry]

Unreal. JC just edited the Wiki article. How about a reference for that change JC? Granted the previous article needs a reference as well, but common knowledge was that the chassis update to the GD was to make the rally car stiffer.

[JC]

Originally Posted by sperry

Unreal. JC just edited the Wiki article. How about a reference for that change JC? Granted the previous article needs a reference as well, but common knowledge was that the chassis update to the GD was to make the rally car stiffer.

I reject your reality and substitute my own. My version of the truth is just as truthy as the other unreferenced one. "Watermelon Frame?" Please, I've been around since that car was launched and I've never heard that. There were plenty of terrible accidents in the Subaru community before the WRX ruined it and there was zero chassis shattering. When I get off work I might do some digging around for actual facts. Don't make me put my entire history of the Impreza on there.