"Hi everyone,

I am a young guy eager to learn the art of tuning properly. I want to start with the basics to understand the logic before trying anything extreme.

I am practicing on a Ford Galaxy 1.9 TDI ASZ (EDC15). Since the engine has 300,000 km, my goal is a 'Safe Optimization' rather than a max power tune. I am mainly looking for better extension for highway overtaking, without stressing the old components (clutch/turbo).

Here is the logic I applied:

Torque Limiter: I kept it stock at 1900rpm to save the flywheel. I increased it gradually to 52.5mg at 4000rpm to prevent the power drop during overtaking.

Smoke Map: I calibrated the AFR to approx 16.2 at high load to ensure clean combustion (no black smoke).

Boost: I increased the target slightly to 2420mbar (+0.07 bar) to burn the extra fuel safely and keep EGTs under control.

Limiters: Adjusted SVBL to 2620mbar and Boost Limit Map to 2550mbar.

N75: Left stock as the increase is small.

I have attached the screenshots of my work.

Could you please give me some feedback? Is this logic safe for a high-mileage engine?

Thanks for helping a beginner!"

SharanASZ wrote:"Hi everyone,

I am a young guy eager to learn the art of tuning properly. I want to start with the basics to understand the logic before trying anything extreme.

I am practicing on a Ford Galaxy 1.9 TDI ASZ (EDC15). Since the engine has 300,000 km, my goal is a 'Safe Optimization' rather than a max power tune. I am mainly looking for better extension for highway overtaking, without stressing the old components (clutch/turbo).

Here is the logic I applied:

Torque Limiter: I kept it stock at 1900rpm to save the flywheel. I increased it gradually to 52.5mg at 4000rpm to prevent the power drop during overtaking.

Smoke Map: I calibrated the AFR to approx 16.2 at high load to ensure clean combustion (no black smoke).

Boost: I increased the target slightly to 2420mbar (+0.07 bar) to burn the extra fuel safely and keep EGTs under control.

Limiters: Adjusted SVBL to 2620mbar and Boost Limit Map to 2550mbar.

N75: Left stock as the increase is small.

I have attached the screenshots of my work.

Could you please give me some feedback? Is this logic safe for a high-mileage engine?

Thanks for helping a beginner!"

I can do a light software optimization on a 1.45 turbo boost which I would say will answer your question