Tuning
New personal best: 11.96 @ 120mph on e85
by Matt on Jul.14, 2011, under Logs, Tuning
Nothing to really brag about but I tried to hit 11s all last year on my heavy 18″ avus wheels and bad trans so I was happy to finally get my goal last night. I will make a few changes and head back on the 24th w/ bracketracer and see if I can improve.
Current setup:
PJ K04s
Self tuned on e85, 23psi spike to 22. Tune is evolving as I learn.
RS4 83mm MAF housing, airbox and accordion
Deka 60lb injectors @ 4 bar, about out of injector and will need to upgrade soon
Walboro 255 (probably also pushing it)
ER intercoolers
DevilsOwn injection using windshield washer fluid
AWE DPs, no cats, Milltek single 3″
Rebuilt 01E trans w/ JHM shift linkage/bushing/Nuespeed shifter
034 motor mounts (1 torn), Stern tranny, Apikol rear diff, snub, DTS w/ GM mount
18lb Volk TE37 w/ Pilots
No weight reduction other than an empty trunk (no spare) and 1/4 tank of fuel


Also, Sunday there was a local dyno day. Mustang AWD. Shop owners and locals say it reads low, but everyone says that about their dyno so IDK. It was like 90* out. I put down 400whp / 413 wtq (ok, 399, but the monitor said 401 at first!!)

Logs from the ride home last night. I’m still learning/working on the tune. I think my MAF scaling is off. Thanks to NOTORIOUS VR and judeisnotobscure for giving me some tips on my file.




























How to bench flash your B5 S4 ECU
by admin on Mar.02, 2011, under Mods, Tuning
I’ve been doing some bench flashing to get myself used to the flashing tools and the process in general. Pretty simple, here’s how I did it:

What you need:
- ECU
- DC power supply
- Flashing cable (Ebay, Galleto, etc)
- Multimeter
- Small gator clips
- Wire
- Small gauge connectors
Set up your DC power source. I have a $17 Pyramid PS-3KX that does 13.8v. I tried using an ATX (computer) power supply (12v) but it would shutdown after a minute or so of powering the ECU and harness. Not sure if I was overloading the power supply or if it was because the power supply was 10 years old.
The wiring is simple. Power the ECU and power the cable. Then connect one K-line wire between the two.

ECU pins:
- Pin 1 -> Ground
- Pin 2 -> Ground (can be shared/connected with pin 1)
- Pin 3 -> 12v
- Pin 43 -> K-line on your ODB cable (Pin 7)
- Pin 62 -> 12v

ODBII cable pins
- Pin 4 -> Ground
- Pin 7 -> K-line on ECU (Pin 43)
- Pin 16 -> 12v
ODB pinout reference. NOTE: The ODB pin out on Ross Tech is from the vehicle side. The pins on your cable will be reversed.
I am a B5 S4 owner that operates under the delusion that a single car can be comfortable, attractive, and fast. Join me as I journal the repairs, maintenance and mods of my S4 in the attempt to realize a possibly unobtainable goal.