Custom ECU Tuning
Fuel, spark, boost and torque management written for your engine. GM LS and LT is the house specialty.
How the calibration works for Custom ECU TuningMeasurement
Dyno sessions, from $250
Dyno tuning starts with knowing what the car makes now. A session is three to four runs on a Dynojet 224xLC, and you leave with the printed sheet: the numbers, and the weather they were recorded in.
2,000hp
Measurable
200mph
Roller speed
2WD
Drive layout
$250
Per session, from
What $250 gets you
Three to four pulls, the printed run sheet, and a walk through what the graph is telling you. That is the whole transaction, and it is the single most common reason cars come here.
Most people book it for one of three reasons: they have just bought the car and want to know what it really has, they have fitted parts and want to know whether the parts did anything, or somebody has quoted them a number they do not quite believe.
Cars come out here from across the Austin metro. Round Rock, Georgetown, Pflugerville and Elgin are all a straightforward drive, and the rollers are a good deal quieter than anything closer to the city.
What the load cell buys you
An inertia-only dyno can tell you what an engine makes at full throttle. It cannot hold the engine at 3,000 rpm and 40% throttle while you sort out the part of the map you actually drive in.
The 224xLC adds an eddy-current absorber to the inertia drum, so we can run step tests, sweep tests and road-load simulation at any throttle position. That is where drivability lives: cruise fueling, tip-in, part-throttle knock, the surge you feel at 45 mph that never shows up on a wide-open pull.
Adding the inspection
For $75 on top of the runs we will go over the car properly while it is here: an OBDII scan, then tires, brakes, engine condition, transmission condition and driveline condition.
It is optional, and it is carried out at the customer's own risk under the shop's written work authorization. What it buys you is finding out about the failing wheel bearing before you spend money tuning around it.
What gets recorded
Every pull is stamped with air temperature, barometric pressure, humidity and the correction factor applied. Those four values are why the same car reads differently in February and August, and why a shop that will not show you the conditions is showing you a number you cannot check.
Baseline.wp8 · E55 AMG
HPTorque
510.6hp
Recorded peak
586.9lb-ft
Recorded peak
SAE1.05
Correction
3pulls
Same session
Process
How a session runs
Same order, every car. The boring parts are the ones that keep engines alive, so we do not skip them to get to the fun part faster.
01
Intake and inspection
Before anything gets strapped down we go through the car: fluids, plugs, boost plumbing, fuel supply, logged codes and whatever the last shop left behind. If something will not survive the session, you hear about it before we start, not after.
02
Baseline pull
The car runs exactly as it arrived. That is the number every later claim gets measured against, and it is recorded with the weather it happened in.
03
Calibration
Fuel, spark, cam timing, boost and torque management, worked in steps with wideband and knock feedback on screen. We tune to what the engine is actually doing, not to a target on a spreadsheet.
04
Verification
Back-to-back pulls to confirm the change repeats, then part-throttle and road-load work so the car behaves in traffic and not just at wide-open throttle.
05
Handover
You get the run sheets, the before and after overlay, and a plain-English explanation of what changed and what it now needs from you in fuel and maintenance.
Elsewhere in the shop
Related work
Engine Blueprinting & Performance Builds
Camshafts, cylinder head porting, turbo upgrades and superchargers, then calibrated in-house.
Inside a build for Engine Blueprinting & Performance BuildsPerformance Diagnostics
Finding the fault that a scan tool and a parts cannon keep missing.
How we find the fault for Performance DiagnosticsReady to put it on the rollers?
Tell us the car, the hardware and what you want out of it. We will tell you what the session looks like and what it costs.