Background: After a couple of check-out drives with the Shuenk IS48, the process of tuning the ECU got underway with Russell Road and Racing. Since the version of the IS48 turbo that I have includes an anti-surge compressor housing, the first goal is to see if it can be pushed into surge. This post discusses […]

Background: With the Shuenk IS48 turbocharger installed, I flashed the ECU with a tune I had previously used with the Lader LM440 IS20 turbocharger. The turbochargers are similar enough that the lower boost tune should suffice for verifying that the turbo installation went correctly. I did find a part that was not installed fully, the

Introduction: Choosing a reliable ECU tune is an essential consideration if avoiding unexpected repair costs is a concern. As the above examples illustrate, this topic has practical consequences, such as potential repair costs or engine longevity, and real owners are facing these consequences. However, as I’ve written about previously in Turbocharger Reliability, the subject of reliability