TRM Tuning

📊 N54 Manifold — Throttle Body, MAF, and 7500 RPM Test 🔧
Continuing with the N54 manifold testing, we ran comparisons using the stock N52 throttle body and the N62 90 mm throttle body paired with our TRM 90 mm MAF housing for proper scaling.

We also raised the rev limit to 7500 RPM to explore any gains from extended RPM operation.

💡 Results:

No measurable power increase from the larger throttle body or higher rev limit — the engine’s peak came earlier in the curve, around 6600 RPM.
The 90 mm setup did bring a significant increase in intake noise — aggressive tone, but no added horsepower.
Data reinforces that with this manifold, the airflow bottleneck lies in design, not throttle area.
Next, we’ll apply this same higher‑RPM testing to the 3SIM, adapting it for the 90 mm MAF and throttle body to keep the comparison consistent.

📩 Tuning or calibration inquiries: [email protected]

📊 N52 Intake Manifold Comparison — All Four Configurations Overlaid 🔧
Here’s the complete picture so far — all four configurations compared on the same car, same dyno, under the same controlled conditions:

1️⃣ Single‑stage (325) – stock software
2️⃣ Single‑stage (325) – TRM tuned
3️⃣ 3‑stage (330/3SIM) – stock 330 software
4️⃣ 3‑stage (330/3SIM) – TRM tuned

This set shows exactly how both hardware and software influence performance:

The 3SIM brings clear mid‑range and top‑end gains over the single‑stage.
TRM tuning enhances both setups, aligning torque and airflow to each manifold’s design.
Combined, they define how the N52 responds when properly optimized.
All tests were done under identical conditions, so the data is direct and repeatable.

🧠 Next up: we’ll move beyond "stock" N52 manifolds and bring in the N54 manifold to see how it compares. That’s when airflow design really gets interesting.

📩 For tuning info or calibration setups: [email protected]