Background: While working on a recent turbocharger swap, I examined my collection of diverter valve (DV) parts and noticed some unusual wear on the stock DV piston. Compared to the new OEM DV that I have, this used one looks rough. I do subject the part to higher temperatures than the stock setup generates. As […]
Background: During the tuning of the Mabotech M520 turbocharger, a point was reached where the turbocharger wastegate duty cycle began to increase, indicating that the power supplied by the turbine was nearing a maximum for the hardware configuration. The exhaust configuration was changed from a catted downpipe to a catless downpipe to facilitate more power
Catted vs. Catless Downpipe Street Comparison Read More »
Background: Ongoing development of the MGM7 intake has progressed to printing another model for test fitting and flow testing. The turbocharger installed in my GTI is driving some changes. For a while, I had been using the Mabotech M520, but then I switched to a prototype that Mabotech is developing, the M720, which uses a
MGM7 Beta-12 Flow Test Read More »
