Hmmmmm... MAX boost I ever experienced was just 5PSI... I could only manage 81mph...130kmh safely... i was getting a weird vibration at those speeds so I let off... GAUGE was pegged at 5psi... I DO have intake manifold leaks though as indicated by black oil leaks at almost all sealing points. Intake-to-head and crossover-to-intake has oil leaks.

off-topic: at what speeds do tire balancing become a major factor? I never had my tires balanced, maybe the cause of the shakes at speed?

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85 190E 2.3(SOLD)
86 230E (-->300D) sold
87 300D (-->300TD) sold
68 250S w/ a 615 and manual tranny (RIP)
87 300TD (SOLD)
95 S280 "The KRAKEN" (Turbo 2.9 602 transplant) traded
86 190E 2.3... current project