Thread: 300Tdi boost pressure - how much is enough?

Originally Posted by Squids130

I'm ordering a larger intercooler very soon for further scope in tuning , I'm now at the point of learning what does what and how to tune the pump.

There're some Tdi pump tuning notes floating around on this site (I think). PM me if you can't find them.

After a few years of good motoring, I think my turbo might be getting little bit worn. It used to provide 14psi from 2200rpm onwards, but now will only get 6psi at 2200rpm and 14psi at 2900rpm. This is measured at the manifold with a standard wastegate line. Could a dirty intercooler cause this, or is it likely to be a worn turbocharger?

Aaron