Wez Posted May 8, 2007 Share Posted May 8, 2007 Howdy, Does anyone know how to increase the total boost pressure on a vacume based VNT turbo system. We been trying on an 1995 Audi A4 1.9TDi, no such luck as yet. Quote Link to comment Share on other sites More sharing options...
bignum Posted May 9, 2007 Share Posted May 9, 2007 Dont, these turbos are weak and will fail. Quote Link to comment Share on other sites More sharing options...
Wez Posted May 9, 2007 Author Share Posted May 9, 2007 From what I have read the stock system runs at 13psi and they can be safely increased to 18psi. I have now also discovered that the only way to really accomplish more power/torque is a remap, I have a unit for flashing the ECU but not been able to get it working correctly yet. Quote Link to comment Share on other sites More sharing options...
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