It's a good video. There is absolutely no reason to have to do this on stock turbos for our cars though. There is no way a 9b exhaust blade can flow that much exhaust to cause this unless there is a defective wastegate or actuator.
93 3000GT VR4 (Disguised as 97)
450 cc injectors w/hot wired walbro
Greddy emanage blue
Downpipe w/stock exhaust
AEM wide band
Theoretically, due to the inherently restrictive nature of the 13g/9b hot side exhaust housing - very small diameter, a free flow exhaust should be enough to cause boost creep, "Meh, that wastegate port is to tiny/restrictive, I will just continue through the compressor housing since there's no precat slowing me down"
I''m also guessing that a larger turbo's (15g/20t ) wastegate port is larger and better flowing.
That's my theory anyway.
Built 2nd week of August 1992, 1993 Dodge Stealth R/T twin turbo (6g72 engine with stock TD04-9b turbochargers), pearl white exterior (W29), red leather interior, W5MG1 transaxle.
With winter in full swing here and my car up on jackstands, there will be no boost creep testing till end of march
My 9bs are untouched since factory install, I could reduce preload, it seems to be a bear to acess the rear adjuster.
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