still trying to figure our boost

[Wishingforagsx]

i am currently running almost 16psi curious about getting up to 20psi, is boost mainly controled by fuel flow or am i totally off? just need a little help

 

[kpt4321]

Oh geez.

Um......no.

 

[purplehazetsi]

wow, newbies

 

[psychlow]

i am currently running almost 16psi curious about getting up to 20psi, is boost mainly controled by fuel flow or am i totally off? just need a little help

First, please post questions like this in the newbie forum.

Second, no, boost has nothing to do with fuel flow.

Most people measure boost in PSI (pounds per square inch.) Think of the air in your tires - if you have them aired up right, you probably have them aired between 30-40 PSI. Boost is controlled by the amount of air that can be pushed by your turbocharger to the intake of your engine. When you increase the amount of air your turbo is pushing, you increase the boost pressure (PSI.) By getting a larger turbo or doing other mods, you can increase the boost.

The easiest way to increase boost is to get a boost controller. You can also increase boost some by adding a better flowing exhaust. I notice you already have quite a few mods, according to your profile. No offense, but I'm guessing the previous owner installed them?

To turn up the boost, if you don't have one, you'll need the boost controller. Your 16G should be able to get you to 20PSI. The problem is that your car's ECU (computer) can compensate for awhile, but after that point, it'll lean out. In order to not start melting or breaking parts, you'll have to somehow increase the amount of fuel your injectors are giving the engine to match the increased air from the turbo. Most people use AFC or S-AFC's to do this. Another thing you're going to need is a device to tune by - either an EGT, a wideband O2 sensor setup, a dyno, or better - all 3. There's more that I'm leaving out, including the limitations of the stock injectors, etc.

I'd either recommend that you study up on tuning and the way turbochargers work for a long, long time before you attempt to do this yourself, you have someone who knows what their doing help you, or you take it to a shop. If you just turn up boost without knowing how to tune your car, you will almost 100% certainly damage your engine.

Good luck.