running 0 boost?

[letemlaf]

i was wondering, if you turned boost to 0psi would the car still be drivable?

and if so would it majorly reduce ur fuel consumption.

for every day driving i try and keep boost below 0, but i still hear the BOV releasing pressure, is this right?

[Damo]

I am sure the car would still still be driveable, but wheres the fun in that?

The only way i can think of getting no boost is to either stop the turbo from spinning or keeping the wastegate open, therefore bleeding off all exhaust gasses.

Neither are very practical.

Maybe just buy a GTS

[Messiah]

As for the bov noises below 0 psi. keep in mind that yr intake is a vacuum when your boost gauge is below 0. infact when it reaches 0 it means your turbo has equalised the vacuum with an equivalent amount of boost. its still bossting... but not to positive pressure, its just lessened the vacuum. so when u let off the gas it still makes a noise.

[HIPSI]

I thought the computer has it set at a certain level (7-8psi??) which even with a boost controller can't be dropped any lower.

[ENTYSU]

Realy depends what yah waste gate is set at ... your waste gate spring is the decider on how low it will go ...

as for the BOV valve activating under no boost , well natural pressure is set at 14.7 psi at sea level .... so there will be still pressure in the intake but not above 14.7 psi

there for your BOV is set very lightly.....

yes your car can be set at 0 psi and yae it would perform just as good as a non turboed version of your engine but due too the low compression of your engine due too the turbo there would be no great power figure and it would be low on torque, there for having too accelerate more too assiste the torque meaning you would use a bit more fuel than with having the turbo boosting at the first place ......just set the turbo around 5-7 psi and you will still get the torque and fuel efficiency you want ....... just get two stage boost controller i prefer the Greddy profec B as its simple and does a great job for cruzin and race set up .....

as too HIPSI's message yes the computer is set too a standard boost lv around 7-10 psi for most std turbo cars ....you can divert this process by a boost controller but you may upset the computer's settings by doing so its all in the computer set up ... i know for a fact most cars will allow you too set boost pressure to whatever cause most std computers rely on the Actuator Valve for there boost readings and do not actually set the boost them selves .......only after market Computers can have an override for boost pressure ....

but just remember that the Spring in the actuator or waste gate is the monitor for boost pressure you will not drop lower than the spring pressure rating but vacume makes boost bressure rise .

[BHDave]

Sure you can run 0 boost.

wire open the wastegate.

Kind of defeats the purpose of buying a car with a turbo though as you will have a car that drives worse than the average excel.