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1991 C2 Turbo, .9 bar, engine drops off (hesitates) several times from 5000 rpm to Redline.


Vehicle Information: Year: 1991; Engine (Size, Modifications): 3.3,Tial wastegate .9 bar, K&N filter, Bypass pipe; Total Mileage: 65,000;

Installed Tial wastegate .9 bar. Engine now drops off ( hesitates ) several times from approximately 5000 rpm to Redline.In its current state, will this cause any engine damage or is the system operating correctly to protect the engine?What modifications do I need to perform in order for the engine to run smoothly through the high rpm range?Boost was checked with a seperate gauge and remains constant.New plugs etc. Car runs perfect except for in the high rpm range.PLEASE HELP!If at all possible, please respond today or as soon as possible. I have a track event coming up on July 2. I want to be sure I am not causing any harm and or would like to rectify the problem if possible.Thanks,Rich

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