Main Menu

Leakdown Results on High Mileage Turbo


Vehicle Information: Year: 1991; Engine (Size, Modifications): 3.3; Total Mileage: 79,000;

I'm considering a high mileage (79k) turbo primarily for track usage. A recent leakdown using the Porsche Test Kit revealed compression readings as follows (Cylinders 1-6, in order):115, 115, 115, 115, 120, and 120; Leakdown on 1-6 was: 3%, 4%, 3%, 3%, 3%, and 3%.Is there any reason from those numbers to expect that it will soon need a rebuild? As far as can be determined the engine has never been rebuilt.Thanks!

You must log in to view answers associated with technical questions. Join PCA to participate in our community.
No votes yet