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heylo all . i have a d16 auto.
i am runny Garrette T28 turbo with an intercooler. no mods done on fuel pump , injectors. only added a VAFCII.
currently i am running on 4 psi.
could anyone tel me till how much psi can i go with this stock setup?

secondly , ever since i added the VafcII , my car boggles and vibrates and somtimes shuts off when i start it in the morning (when car is cold).
is this due to less fuel or more?

thanx

 
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Idle has nothing to do with boost. When idle or starting the engine, it's running as it normally would run N/A (1 atmoshere)

Idle has not boost, no vac. So your injectors are spraying as much as they normally would N/A

I think you probably just need to adjust your idle cable. Seems like you're not getting enough fuel.

 
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I hope you mean b16. I'd think the safest amount of boost to run on stock injectors would be something like 6psi, but i'm not an expert when it comes to fuel systems. I'd suggest upgrading your injectors and using E-manage to control it all if you're wanting to increase boost

 
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and IMO, bad choice of a screen name

 
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Idle can be affected by the addition of turbo. It can become more rough because the turbo is operating outside of it's efficiency range, and also larger injectors can induce poor idles as well due to variance in size from the ecu is used to.

Idle has vac too btw. On our car, it is approx 20 in Hg on idle under most occassions.

 
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/\/\dang, sorry, btw, i'm still a boost noob, haha

 
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No prob. Better to be educated than misinformed.