TechTune Performance Perth

31/03/2026

Holden L77 SS V8 Cleanly calibrated for the over the radiator intake and exhaust. This one hadn't been tuned before. Its great seeing one of these come through the shop for a custom tune as we haven't done one in a while.

A decent tune wakes these up incredibly.

31/03/2026

Y62 Nissan Patrol spice up to suit high flow air filter and high flow cats.
These have a very restricted airbox/filter design and 4 exhaust cats which hold them back. After 3 or 4 software revisions they tidy up well.

20/03/2026

Another BT-50 getting after it. 4JJ3 Dyno cal — ECU + Transmission cal.

Full custom dyno calibration on a 2024 4JJ3 BT-50 running a stock exhaust, with complete ECU and transmission recalibration to suit increased torque output, wheel size and real-world load.

Final results (roller dyno, at the rubber):
✅ 200.9 HP / 636.3 Nm
⬆️ Up from 153.6 HP / 448.5 Nm stock
⬆️ +47 HP / +188 Nm
⬆️ Smoother shifts, firmer shifts and earlier lock-up
⬆️ Modified shift points for cruising
⬆️ Improved fuel economy

On the 4JJ3 platform, power tuning alone isn’t enough.
The ECU torque model, gearbox torque request, fuel quantity and boost control all have to match, otherwise the transmission will slip, flare or force torque reduction under load.

This calibration included:

✔ Custom dyno tuning
✔ Torque model recalibration
✔ Injection quantity & rail pressure optimisation
✔ Boost control refinement
✔ Gear-dependent torque limit changes
✔ Transmission calibration to suit tyre size and power increase
✔ Lock-up pressure optimisation
✔ Shift speed & shift strategy edits
✔ Torque reduction control adjustments

Result is factory smooth drivability with significantly more usable torque and power on demand.

No smoke tunes
No guesswork
No shortcuts

Just proper dyno calibration. Because every journey starts with the right tune.

📍 TechTune Performance
46 Crocker Drive Malaga WA
🌐 ttperformance.net

14/03/2026

**Important** — if this goes ahead, make sure you adjust your maintenance schedule.

Higher sulphur fuel can make engine oil become acidic. During combustion the sulphur forms sulphur dioxide, which can end up on the cylinder walls, past the rings, and into the crankcase where it contaminates the oil.

To help counter this:
• Change engine oil around every 5,000-6000 km
• Replace the fuel filter regularly (ideally every oil change)
• Use injector cleaner every few tanks
• Make sure DPF regens are completing properly, lots of short trips will increase soot loading, so give the vehicle a good run, or take the E scooter
• F$%k the egr off and get it calibrated

Modern engines are designed for low sulphur, so if you're putting this s #!t through your vehicle, good maintenance is the best way to avoid the dramas to come.

I wonder what this is going to do for warranties?
If there's anything I've missed, comment below...

10/03/2026

Gen 3 Prado optimised touring legend.

08/03/2026

All the noiz for the boiz

08/03/2026

Holden Colorado 2.8 these things hammer if done right. With a sensitive rail relief it needs some careful tuning. .

08/03/2026

06/03/2026

With the market now flooded with cheap remaps done at tyre shops and back alleyways, we're getting so many enquiries about fix ups. We can no longer take on these jobs. 7 emails this week and a dozen phone calls and we can't take it on. If you don't get a reply then this is the reason.

Common complaints such as not feeling any power gain yet told they now have a 30% power gain, worse economy, rough running, disappointment and money wasted with no dyno sheet, no O² testing or monitoring completed.

Its a big decision to make a modification to your vehicle ECU or TCU like this so don't cheap out, think carefully about what you're doing and take it to a shop with good reviews and good reputation. If they're not showing you any physical graphs or data in relation to testing then you've been swindled by a con artist with a laptop and a cable throwing in a file from someone working out of a basement in Turkey, Pakistan or even the UK.
There’s a lot more going on in these ECUs than boost and fuel believe it. Some may make power but has it been done right? Has it been monitored? Have they missed half a dozen maps? Have they deleted safeguards? A real OG tune done by the pros should run cooler than stock and ultimately more reliable.

There are a few really good shops in Perth, so come see us or one of the other top Gs around for a proper product. Don't leave this s**t up to luck and make our life harder when it doesn’t work out.

Some pistons images attached, food for thought.

Maia

04/03/2026

Smooth high-flow turbo upgrade tuned for clean, efficient power for long range bush trips.

Quality time spent, no rush, around 135 mg/stroke injection quantity and a nice clean 18:1 AFR under load.
Smooth boost control at 30psi, strong mid-range torque, low EGTs under steady state, built for reliability.

A balanced touring setup, strong performance while staying well inside safe limits for long term reliability over long distances in places where you don't wana be stuck.