yeah the boost is controlled by the ecu, but still if you were to bleed off some boost from the actuator hose, the intake pressure would be higher than the actuator hose pressure , so when the wastegate opens the boost will be higher in the intake than before. I think LOL
in that case i should still be able to use a bleed valve to up the intake boost.. only a little of course as the fuel map will only allow for a little extra boost - hoping for 2psi... gonna fit boost gage so i can measure it. does anyone know what the boost pressure is standard?
Not sure if this makes a difference, but earlier 115PS TDDi's had a variable vane turbo, whereas the 90PS had a fixed vane. Late 2001 at the time the 130PS TDCi was being released Ford changed it over to a Fixed vane on the 115ps TDDi also.
you can get a suitable valve for an aquarium that is adjustable, but don't be fooled. it is risky, if you open it too much your wastegate won't open and your turbo will just spin faster and faster until you hear the bang. so start with it closed and then open it slightly and measure the difference with the boost guage - a must!!!
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