Poor Man's Racing STX Build

[PoorMansRacing]

Hi fellow autocrossers!

I'm a former SCCA Time Trials driver (although I still hold my license) that transistioned full-time into Solo 2 at the beginning of the season.

Regional Membership: Washington, DC SCCA Region
Local Membership: Autocrossers, Inc., National Capital Chapter BMW CCA, Capital Driving Club
Contigency: FT-86 SpeedFactory (Nationals/Regionals), Subaru of America (ProSolo), BFGoodrich (ProSolo)


SUSPENSION
Coilovers: KW Variant 3 Coilovers
Camber Plates: Raceseng Camber/Caster Plates
Rear Camber: SPC Lower Control Arms
Sway Bars: Hotchkis 25mm Hollow Front Roll Bar
End Links: Whiteline Adjustable Front Endlinks and Kartboy Rear Endlinks
Upper Strut Bar: OEM
Bushings: Whiteline Subframe Bushings

ALIGNMENT SETTINGS
Ride Height: -- [rake]
Rake: --
Camber: --
Toe: --
Caster: Max
Shock Settings: 10/6
Weight: 2897
Weight Distribution: 50.02%
Corner Weights: 793 (LF), 759 (RF), 635 (LR), 600 (RR)

ENGINE & DRIVETRAIN
Header: Borla
Over Pipe: Private Label MFG
Front Pipe: Private Label MFG
Cat-Back: Invidia N1
Intake: SuperTek Intake Tubing and K&N Drop-in Air Filter with sound generator delete and snorkel modification
ECU: EcuTek, tuned by Visconti Tuning, 8200RPM Redline
Battery: Shorai LFX21LS-BS12
Engine Pulleys: OEM
Motor Mounts: Cusco
LSD: OEM
Bushings: Whiteline Transmission Bushing, Kartboy Rear Shifter Bushing
Short Shifter: Kartboy
Clutch Line: MTEC Industries Stainless Steel Clutch Line
Engine Oil: OEM
Clutch Oil: Prestone DOT 4 Brake Fluid
Transmission Oil: Motul 1L Transmission GEAR 300 75W90
Differential Oil: Motul 1L Transmission GEAR 300LS 75W90

WHEELS & TIRES
Wheels: Enkei Racing RPF1 17x9, +35
Tires: Hankook RS3 - Version 1 245/40R17
Brakes: Ferodo DS2500 (Front), HAWK Performance HPS (Rear)
Brake Fluid: ATE Super Blue Racing Fluid
Brake Lines: MTEC Industies Stainless Steel
Tire Pressures: 33 (F), 31 (R) [Cold]36 (F), 34 (R) [Hot]

INTERIOR
Seats: Sparco Evo 3
Harnesses: Sparco 4 pt.
Harness Bar: Agency Power

DYNO RESULTS
184.57 WHP (Dynojet)144.44 FT LBS (Dynojet)
205.1 WHP (Dyno Dynamics)160.6 FT LBS (Dyno Dynamics)

[s2d4]

Originally Posted by PoorMansRacing

ECU: EcuTek, tuned by Visconti Tuning, 8200RPM Redline

[vroom4]

Well, youre the first Ive heard of shaving the rivals.

[Wepeel]

Saw this car this past Sat, really like the color combo of the silver/gunmetal. That 8200 redline I'm sure was nice to have on Sat's course!

[tahdizzle]

So with those bolt ons you got 205 whp not on corn?

Send me to your tuner!

[PoorMansRacing]

Originally Posted by s2d4

Definitely expected that! lol!

Originally Posted by Wepeel

Saw this car this past Sat, really like the color combo of the silver/gunmetal. That 8200 redline I'm sure was nice to have on Sat's course!

Was such a fun course! We should hit the rev limiter more often

Originally Posted by tahdizzle

So with those bolt ons you got 205 whp not on corn?

Send me to your tuner!

The Dyno Dynamics dyno reads 11% higher than the Dynojet. I originally had Open Flash Tablet prior to EcuTek. I definitely recommend OFT as a cost effective tuning software.

[Wepeel]

Originally Posted by PoorMansRacing

I originally had Open Flash Tablet prior to EcuTek. I definitely recommend OFT as a cost effective tuning software.

Did you run the OFT with the Borla? If so, how was it and did you notice a big difference between the OFT and ECUTek tunes?

I need to get a header and availability/price is pushing me toward the Borla. HKS seems to make the most power but is $$$ and would also require a custom tune (even more $$$). I would get the OFH if there wasn't such a lead time on it.

[PoorMansRacing]

@Wepeel I did. Powerwise, there wasn't a huge difference, but the custom tune definitely smoothed out my A/F ratio and completely removed my torque dip and idle issues. I'm running about 4% less aggressive tune with the same power output. Launch control was dropped from 5600 RPMs to 4000RPMs (at my request). Max RPMs went from 7500 to 8200.

I can't comment on the flat-foot shifting or revmatching features. Haven't tried them out.

I went with the Borla, because it's the lightest on the market.

Here are my dyno sheets:

• Dyno Dynamics - 4th Gear Pull - OFT

• Dynojet - 3rd Gear Pull - OFT

• Dynojet - 3rd Gear Pull - EcuTek

[Wepeel]

^Great info, thanks, that really helps. I will def need to come over and say hi next event - I was running the white BRZ #23. Love the huge STX field down in DC. Not sure yet if I will make it down yet on the 8th.

[PoorMansRacing]

Definitely let me know when you're coming back down to the DC area, so we can properly meet @Wepeel

[PoorMansRacing]

WDCR-SCCA First Ever Night Autocross, 6/1/2014

Ran the new Hankook RS3 (v1) over the weekend. My first impressions were they take the same amount of time, if not more, to warm up as the Rivals, but they are definitely a lot grippier than the Rivals. So far, I am very pleased with the new set of tires and decided to run them for the rest of the season.

[Wepeel]

Originally Posted by PoorMansRacing

Definitely let me know when you're coming back down to the DC area, so we can properly meet @Wepeel

Well I reg'd for Sunday. Looks like we've got a 30 car field! Running #33 this weekend and I will have a codriver. See you Sun.