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View Full Version : Experimenting with my VNT



butchsuppe
08-23-2008, 11:59 PM
Long story short, I'm running a VNT while my T3 is geting rebuilt. I'm trying to lower the boost to 12 PSI. Just for the heck of it I put a check valve to the vac. side of the actuator and full boost to the pres. side thus holding the vanes WIDE OPEN. Did get it down to 17 PSI and a laggy turbo.:( This car is so much more fun with the VNT than the T3 that I really don't want to put a laggy turbo back on it. Whats this external wastegate I've read about and has anyone successfully used one.