I am installing a SLK supercharger on my 190E 2.3-16 (CIS-E injection). It is now installed and in a testing phase. The problem is, that when the boost is above 4-5 PSI, the throttle "freezes" and cannot be moved. I can reproduce the problem in the garage by over-riding the bypass valve and opening the throttle. Anyone have any idea what could be causing this? My only thoughts that a warn shaft is allowing the butterfly to jam. Anyone have experience with supercharging a CIS-E injected engine?

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Jim Villers
190SL, 230SL 5-speed, 95 E320 Wagon, 01 E320 Wagon, MGB, Boxster 'S', 190SL "Barn Find"