cars Archives - (HR) Hajes Racing

No Brain, No Pain - No Pain, No Gain

BHG – Engine calibration feedback & logging

We know already how to extract max. torque and properly calibrate engine from various BHG articles. But we still do not know whether we have optimal engine calibration or not. That is where feedback & logging comes in. Most of us are materially poor car hackers, and we have no [...]

BHG – how to choose knowledgable chiptuner vol. 2

After writing the first article about choosing knowledgable commercial chiptuner our knowledge improved, and we simplified and improved strategy. We also found out that some turbochargers are "uncontrollable" even in stock setting, and boost spikes are partially not chiptuners' fault. PLEASE READ WARNINGS BEFORE YOU PROCEED !!! IF YOU FIND [...]

BHG – We share similar pain

This BHG article has been based on a true story. We naturally want more torque so you either try ECU remap yourself or find someone who does it for you. If you are in hands of Johnny McFuck, you end up with a questionable ECU remap or fucked up car. [...]

BHG – Safe & simple ECU remapping guide

This article is part of the infamous BHG guides. The simplest and “safest” engine calibration (ECU remap) guide for beginners. PLEASE READ WARNINGS BEFORE YOU PROCEED !!! IF YOU FIND INFORMATIONS USEFUL, PLEASE CONSIDER DONATION. SUMMARY Preparation Max. boost for turbo Max. injector duration The easy part Boost & boost [...]

BHG – ECU remap facts & myths

Some facts and myths about ECU re-calibration aka ECU remap or chiptuning. Harsh reality of chiptuning/ECU remap that nobody wants you to know. It looks like that very few want to see reality. PLEASE READ WARNINGS BEFORE YOU PROCEED !!! IF YOU FIND INFORMATIONS USEFUL, PLEASE CONSIDER DONATION. SUMMARY everything [...]

Dyno is marketing hype

Everybody loves dyno graphs and performance figures. After all, HP sells cars. Based on my experience, I do not wonder - most ask me for unreal results such as 200PS from 140PS factory engine...they even get upset if I share facts about so called chiptuning. PLEASE READ WARNINGS BEFORE YOU [...]