Background: After testing the Shuenk IS48 turbo with a 5+5 splitter turbine wheel for boost onset, I set up to test the turbo under a full throttle pull. The goal of this testing was to see what, if any, changes could be detected in how the turbocharger and vehicle performed compared to the same setup […]
Shuenk IS48T Full-Throttle Test Read More »
Background: Previously, I posted about trying a 5+5 splitter turbine wheel with the Shuenk IS48 turbocharger, starting with a flow test of the splitter wheel and the standard version’s IS38 turbine. The goal of this design change is to see how boost onset and engine power are affected. With half the blades reduced from full-size
Shuenk IS48T Boost Onset Test Read More »
Background: This post compares vendor-supplied dyno data for the Golf R’s IS38 tune stages. This is similar to a prior post comparing the IS20 turbo’s stock, Stage 1, and Stage 2 tunes using vendor dyno charts. The same four tune vendors from the prior post — APR, EQT, Revo, and IE — are referenced for
IS38 Stage Comparison Read More »
