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Zax Bugeye "Shaggin' wagon" Build thread

140K views 548 replies 52 participants last post by  Liquidussnake 
#1 ·







Mods:

Engine Modifications:
Grimmspeed ceramic-coated Uppipe
Cobb catted downpipe (heat wrapped)
Cobb catback exhaust
Perrin Lightweight Crank Pulley
Ebay Oil Catch Can
Heat-wrapped headers
Tactrix OP2.0 Tuned by Zax with Mattypants handholding :giggity:
Pitch Stop Mount
STi Oil pan and baffle*
KillerB Ultimate Oil Pickup*
Grimmspeed EBCS
Grimmspeed MBC Hybrid boost control set to 21 PSI peak
Injector Dynamics 1000cc Injectors
Walbro 255lph fuel pump
Blouch TD05H-18G (40lb/min Turbo)
AEM Dry-flow filter and Corksport 73mm BigMAF
AEM UEGO WBO2 Sensor
PTP Turbo Blanket
BPM Top Mount Intercooler
TXS 50/50 Hybrid BOV/BPV
Perrin 4-2-1 ELH
GT Spec Splitter
Grimmspeed 3mm Phenolic spacers
Grimmspeed TGV Deletes
Gates Timing Belt Kit & Water pump
Mishimoto aluminum 2-core replacement radiator
Samco turbo inlet

Suspension/Steering Modifications:
Perrin 22mm FSB (stiff setting)
Perrin 22mm RSB (middle setting)
Perrin Endlinks
Perrin Stout Mounts
TIC Clunk-killer kit
TIC Rear Diff lockdown bolts
Whiteline Steering Rack bushings
Ebay STi (knockoff) front and rear strut tower bars
Custom Alignment -- -1.1 deg front camber, 0 toe, stock caster, -1.05 deg rear camber

Transmission Modifications:
Perrin shifter bushings
Subaru OEM Short Shifter
Group-N Transmission Mount
IXIZ concept clutch-stop

Wheel/Brake Modifications:
OZ Ultraleggera 17x8 +48 wheels (Summer wheels)
Rota GR-A 17x7.5 +48 wheels (Winter wheels)
Hankook Ventus V12 Evo 225/45/17 tires (Summer)
Bridgestone Blizzak LM60 225/45/17 tires (Winter)
Stoptech SS brake lines (front and rear)
Speed Bleeders
Motul RBF600 fluid
Prodrive 330mm Brake Calipers & Rotors (front)
H6 rear rotor upgrade painted silver to match the fronts
Flapatax mudflaps (Hate away MFers)

Interior
Subaru Ti shift knob
Pioneer AVIC F700BT HU
Ultra-wide rearview mirror (life-saver in MD traffic)
Cobra something-or-other radar detector w/ gps hardwired
ATI Clock Gaugepod
AEM UEGO Digital AFV gauge
Prosport Oil Pressure gauge
Prosport Oil Temperature gauge


Future Plans
2015 WRX FA20 Goodness :)
My fluids:
Engine Oil - GC (German Castrol) 0w-30
Tranny Oil - Subaru Extra-S
Brake Fluid - Motul RBF-600
Rear Diff Fluid - Motul diff fluid
Coolant - Prestone Yellow + Redline WaterWetter + Subaru Coolant Conditioner
Power steering - Subaru OEM
 
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#380 ·
For some reason my AFR has shifted -9% across the board. Very strange. IATs are similar as is ECTs. It shouldn't happen
 
#381 ·
Yeah, that's strange - especially when its across the board. You may want to try limiting your A/F Learning range to 0%, and rely on just the A/F Correction for a bit. It's easier to diagnose an issue when you are only looking at one parameter that has no 'memory'. Just a thought. Similar to locking yourself in open loop, but allowing the ECU to at least fix itself using AFC, which you can view in your log. Not quite as easy as just reading the WB02 gauge, but it still gives you an idea.
 
#396 ·
Wow that chick looks strikingly similar to one I used to doink a few years ago.
 
#400 ·
Update: To get this fueling ironed out, I ordered ID1000cc injectors.

Hopefully if all goes well I should have the car re-tuned in a few months :)
 
#403 ·
Well, an update. Apparently a sticky injector solenoid was responsible for all my fueling issues over the last 2 years. The ID1000s are incredible. Idle well with great electrical headroom. I get a bit more wandering idle than stock injectors, but what can I expect from injectors 2.5x the size of the stockers in addition to the MAF hack?

Sent from my Nexus 5 using Tapatalk
 
#416 ·
Just a word of warning to those who stumble upon this thread:

After installing the ID1000s, I was a bit curious that the LTFTs were consistently 8-10%. This was also reflected in the OL fueling. Since I reverted back to the stock airbox to scale my injectors, latency, and TIE, I thought it was unlikely that my stock MAFv scaling could be that far off. However, after some research, this is what I've found.

The industry standard for testing injectors is using the fluid n-Heptane. When installed in your car, the injectors flow gasoline. The viscosity of n-Heptane is 0.684 g/cc vs. the 0.75 g/cc viscosity of gasoline. As such, n-Heptane flows 0.91x that of gasoline. The value in Rom-Raider is compared to the stock injectors and the stock injector's flow rate is calculated using n-Heptane. InjectorDynamics uses gasoline for flow testing. There is nothing wrong with this method -- in fact I prefer that ID uses the intended medium for flow testing. However, this means that the flow rate defined in RR should be 0.91 * the advertised flow rate of 1015cc/min. In RR, you shoud enter the injector flow rate of approx. 925cc/min.
 
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