Boost pressure

dgoodhue

dgoodhue

BuSTeD 4.3
Re: Boost pressure

That is normal for the boost look like a rollercoaster. Target boost in the ecm is 13.8psi.
 
S

Syclone22

Member
Re: Boost pressure

It is possible a weak actuator spring pressure
but it can also be the boost target setting from
the ecu controller to solenoid !!
 
T

Typhoon-Dennis

New member
Re: Boost pressure

is it useful to work with an external Wastegate and an boostcontroler with a stock Turbo?
Or does this setup works good with an other turbo like an 20G?
 
berzerker

berzerker

wookie
Re: Boost pressure

does it still have the factry cat on it ? put a high flow catalytic converter on it and it will maintain boost levels
 
dgoodhue

dgoodhue

BuSTeD 4.3
Re: Boost pressure

The boost control can be flat if you change the settings with code59. Gm control system programming is over damped.

You can use a external wastegate with stock turbo. I know owners who had good luck with flat boot control (you can also remove the cat and still have good boost control.)

I used a high flow cat and my boost control was flatter however the boost crept up on long run 3rd gear to 16-17psi even if I disconnect the boost solenoid (should have been 9psi).
 
A

Artic Typhoon

Typhoon
Re: Boost pressure

dgoodhue said:
The boost control can be flat if you change the settings with code59. Gm control system programming is over damped.

You can use a external wastegate with stock turbo. I know owners who had good luck with flat boot control (you can also remove the cat and still have good boost control.)

I used a high flow cat and my boost control was flatter however the boost crept up on long run 3rd gear to 16-17psi even if I disconnect the boost solenoid (should have been 9psi).
Click to expand...

Hi

I got stock turbo - waste gate and cat :D
 
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