Inside the client portal
“You get a portal” is easy to say and hard to check, so here it is. These are the three views a tuning client lives in, rendered from the same components and design tokens as the real thing — filled with sample data instead of somebody's car.
Sample data. This is a realistic but fabricated engagement built to show the format of the deliverable — not a real customer's car, and not a real customer's numbers.
1. The changelog
Every revision ever issued on your car, in order, with its status. Nothing is retired or overwritten — a validated revision is locked and stays in the history. This is what we mean when we say nothing lives in one tuner's head.
Client Portal
1993 Skyline GT-R · Initial Dial-InTune revisions
Each revision is a set of exact changes to enter, validate with a log, and move on from. One variable at a time.
Revision 4 — WOT fuel correction + timing pull at 220 kPa
Nine changes to enter now, two held for the boost step. WOT band was 4% lean; three knock events on cylinders 5–6 once IAT passed 45 °C.
Jul 27 · 0/11 changes entered
Revision 3 — Transient enrichment + wastegate feed-forward
Killed the tip-in stumble out of 2nd and cut boost overshoot from 2.1 psi to 0.6 psi. Validated on the Jul 24 log.
Jul 20 · 7/7 changes entered
Revision 2 — Idle, cruise fuel trim and cold-start enrichment
Cruise cells brought to 14.7:1 and the cold-start table reshaped — first-crank-to-idle now settles in under 4 seconds at 8 °C.
Jul 13 · 11/11 changes entered
Revision 1 — Baseline review, safety gates and rollback point
Full backup taken before anything was touched. Hard limits set for this build: 11.6:1 WOT ceiling, knock threshold, 85% duty limit, 20 psi program ceiling.
Jul 6 · 6/6 changes entered
2. A session report
Open a revision and you get the itemized changes: the exact table, the exact cell, the old value, the new value, and why. You tick each one off as you enter it, then upload the validation log. No vague advice — numbers you can type in.
Client Portal
1993 Skyline GT-R · Initial Dial-InRevision 4
WOT fuel correction + timing pull at 220 kPa · from session-04_wot-pulls.csv
Changes to enter
4/11 entered| Table | Cell | Old → New | Why | Entered |
|---|---|---|---|---|
| Main Fuel (VE) | 4,800 RPM · 220 kPa | 88.4 → 92.3 | Pull 3 logged 11.9:1 against an 11.4:1 target — the leanest point in the session. +4.4% VE puts the cell on target. | |
| Main Fuel (VE) | 5,200 RPM · 220 kPa | 90.1 → 93.7 | Same pull, 11.85:1 measured. +4.0% VE — the table's shape is right, its magnitude is short where the turbos come fully on. | |
| Main Fuel (VE) | 5,600 RPM · 220 kPa | 91.6 → 94.4 | 11.75:1 measured across all three pulls. +3.1% VE onto target. | |
| Main Fuel (VE) | 6,400 RPM · 220 kPa | 89.2 → 86.5 | Richer than commanded at 11.05:1 — costing a little power without buying safety. −3.0% onto target; still well inside the 11.6:1 lean ceiling. | |
| Ignition Angle | 5,600 RPM · 220 kPa | 19.5° → 18.5° | Three knock events on cylinders 5 and 6 in this window, peaking 0.42 V over the noise floor, all on the third pull once IAT passed 45 °C. −1.0° at the cell that knocked. | |
| Ignition Angle | 6,000 RPM · 220 kPa | 20.0° → 19.0° | The knock window carried into this cell. Matching the 1.0° pull keeps the curve smooth rather than putting a notch in it. | |
| Ignition Angle | 6,400 RPM · 220 kPa | 20.5° → 19.5° | Precautionary 1.0° so the top of the curve stays consistent with the two cells below it. We revisit this once we have an IAT-matched log. |
Validation log
Drive the same capture set as your last session and upload the log so we can confirm the changes did what they should.
The written deliverable that accompanies this revision — verdict, safety-gate results, and all eleven change rows — is published in full at the sample session report.
3. Metrics over time
The same measurements taken the same way on every logged session, so progress is a trend line rather than a feeling. Boost climbing while knock events fall is the shape of a tune going the right way.
Client Portal
1993 Skyline GT-R · Initial Dial-InMetrics over time
Every logged session, measured the same way. This is how you can tell the tune is going somewhere.
Peak boost
17.0 psi
Target: 20 psi program ceiling
Climbing in approved steps — never more than one step per validated log.
Knock events
3 events
Target: 0 above threshold
Falling while boost rises — the point of the exercise.
Leanest WOT air/fuel
11.9:1
Target: 11.4:1 target · 11.6:1 ceiling
Approaching target from the safe side. Still 0.3 outside the ceiling — corrected in Revision 4.
AFR spread across the pull
0.45 AFR
Target: ≤ 0.30 AFR
How flat the mixture holds from spool to limiter — the real measure of a dialled-in fuel table.
Session by session
| Metric | Jun 29 | Jul 6 | Jul 13 | Jul 20 | Jul 27 |
|---|---|---|---|---|---|
| Peak boost (psi) | 11.8 | 12.0 | 14.2 | 15.4 | 17.0 |
| Knock events (per session) | 14 | 9 | 6 | 4 | 3 |
| Leanest WOT air/fuel (:1) | 12.6 | 12.4 | 12.1 | 12.0 | 11.9 |
| AFR spread across the pull (AFR) | 1.10 | 0.90 | 0.70 | 0.55 | 0.45 |
This is the documentation trail every engagement gets.
Start with an intake and we'll tell you honestly whether your car is ready for it.
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