coley909

I have been only getting 10 lbs of max boost when I try my hardest what's going on with it? I have a 2014 ecoboost I have a catch can it's been tuned before but currently stock. I have a boost gauge I'm reading the boost from. Thinking something is wrong some people are telling me 13-14 lbs

03king

It all depends on altitude, I barely see 10lbs at 7200'

But if you are close to sea level is be checking for leaks.

vozaday

I run 10 psi stock up until WOT, basically only goes to 10psi unless absolutely floored. Then I can see up to 11-12. It will also depend slightly on the gas.

But check hose clamps for anything lose. If nothing then check the bov(s) for tears.

coley909

I'm at 1300 feet above sea level.

I did about 9 wot runs tonight I saw a spike of 14 then after that I had consistent 12 psi wot runs. Is it normal to slowly drop off as I kept accelerating? The higher the rpms went the lower the psi would drop I'd drop from 12 to 9 psi then on my way home I was at normal 5-6 psi 60 mph 1500 rpm


Also now that I have been listening to the turbos more I noticed that if I'm driving along not really accelerating at about 2-3 psi the turbo whistle disappears then I step on the gas harder and it jumps right to 5-6 psi a wosh of air and the whistle comes back what the heck is all that about.

coley909

I'm on a Facebook page for ecoboost trucks and these guys are saying they are getting 16.5 on a stock truck

vozaday

Lol a canned tune will barely get you 16psi. Let a lone stock.

Yes the boost will drop off a bit at the top of the rpm range.

Your numbers seem right. Nothing is wrong as far as I can tell. Have you had any ecu flashes lately by the dealership?

vozaday

Oh and I am also at 1400ft elevation.

coley909

Not that I know of. It was in getting a new transmission. I think the people on that Facebook page are on something. Now they are saying my bov is leaking.

coley909

For the leak test can I just pressurize the intake

vozaday

It is possible for the BOV to be leaking, there have been some cases. Plus you will see in one of my posts that I suggested to see if it is torn. But usually they couldn't get over 8 or 9 psi. You are saying you are getting 12psi. The reason why I asked about a flash is that on the most recent one the dealership did on my truck really changed how the boost was made, normally at 1/2 to 2/3 throttle I was at 12 psi, now it is full throttle.

Throw the tuner back on it and see if the strategy number is different. That and maybe throw a tune on it and see if you boost comes back. If you can hit 17-18psi then you do not have a leak.

Yes you can pressurize from the intake. That isn't a problem. Just need to cap it off.