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Max boost?? 700 1987

posted by  someone claiming to be b21ft on  Tue Dec 31 02:16 CST 2002 [RELATED]

I have two 87 745Tis.Daily driver with Mitsu turbo running 8 psi spiking up to 10 psi.224K miles had a new "head job" about 10K miles ago.The other with Garrett turbo and late style exhaust manifold,runs 10psi spiking up to 13psi.The motor was rebult about 80K miles ago.Here in California the highest octane available is 91 and I wonder if that is enough although I have not had any problems yet.The first thing I would do with any turbo car get a good Boost gauge and install it right away.Also many knock sensors are overtorqued.Volvo calls for only 8 pounds of torque. Other than that follow Philip Bradley's advice.I found him to be very knowledgeable when it comes to Volvo turbos and he can back everything up.I learned a lot from reading his posts or from his responses directly to me.Read Philip's articles on the Turbobrick's site.Beware.This turbo stuff is like cancer.It will spread and most times is incurable.Good luck.George






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