Which stock boost pressue on continental gt1 w12? I have a pressure boost of 0,25-0,35bar

 

 

tell me please

 

Hello Foont,
I am confused, is that a YouTube video of your readings ?

If yes, then you have no problems as the video shows good boost, if not, and you really have only 0.25 on one side and 0.35 on the other, I would be looking for leaks from turbo's to intake.

Please clarify your readings .

 

yes my video

1.25 absolute value or 0.25 relative

 

Where are you coming up with "1.25 absolute value or 0.25 relative", please explain.
Your video shows 990 mbar to 1200 mbar, 990mbar = 0.99 bar, 1200mbar= 1.2 bar.
Your video is to short and fast to grasp what is going on, nor do you give any explanation.

FabSpeed says,
Stock boost pressure of the 2004-2008 (base GT) is ~0.6 bar (8.82 psi)
Stock boost pressure of the Speed and SS is ~0.7 bar (10.29 psi)
We increase the boost pressure to 0.9 bar (13.23 psi)
These engines can handle as much as 1.2 bar of boost without any problem however we limit the boost to 0.9 bar due to the size of the turbochargers. They are a relatively small turbocharger and boosting them beyond 1.0 bar will create too much heat. We produce a safe power increase with the adjustment of the parameters listed above.

 

0.6 above the usual atmosphere of earth pressure, i.e. readings 1.6bar
At me shows 1,25, thus it turns out that against the earth's atmospheric pressure of 0.25 bar pressure.

 

Okay, what year is your GT, does it have any tune, I was under the impression that the reading shown in your video was the reading above atmospheric pressure, meaning if the engine was not running the reading would be zero, as in the same way a boost gauge would read, so when I saw the 1200 mbar I thought you had a tune, and am I understanding correctly that you have the same readings on both turbo's ?

 

no tune ECU, 2004 year


yes the indications are the same on two turbines.
on the twentieth without a supercharge shows 990 mbar

If remove the vacuum tube from the turbine accurator then it shows 2.2 bars

This video without a vacuum tube on the turbine acturator

Ie it can be judged that from 1.25 to subtract the atmospheric one, and pressurize only 0.25 bar excess

 

You say both sides react the same, yet the video only shows 115.4 now at 2300 ish, I do not have the list in front of me, so what does 115.3 and 115.4 stand for, I understand that you say both react the same, but I just want to be sure that I understand correctly that when you remove said vacuum line from either turbo one at a time, that said individual turbo will spool up to proper boost , I just don't see how 2 "N75" valves would fail at the same time, is there anything else you can share that lead up to this low boost problem, if both react the same separately when vacuum is removed, it sure does look like each N75 is failing, or an other item that sets the requested boost is failing.

https://www.6speedonline.com/forums/bentley/380071-boost-pressure-control-valve-n75.html

.

 

Yes, 1 left and 2 right turbos work the same way, show 1.25-1.35

n75 I put a new one

115.3. Requested pressure
115.4 actual pressure

how many the motor of pressure requests so much and the turbine is blowing, but 0.2-0.3 I think a little, all the more write that 0.6 should be

 

At what rpm and in what gear are you taking these readings ?

 

completely first and second gear

 

When you say fully, please state the rpm,
I have read that 1st and 2nd is to short of a run to build full boost, 3rd and 4th at 4500 is what I read somewhere, give it a try with the engine under load in 3rd or 4th, you never did say anything about the power, does it feel weak to you ?
Mine is not running yet, but when I get her up and running, I will be sure to test these comments I have read, maybe you can try it in "S" mode, or shift manually 3rd and 4th at WOT.

 

Yes, I tried on different programs, 0.6 I never had.
0.2-0.4 on average, it's still cold outside -5 degrees Celsius.



What Maf consumption at idle should be? g\sec

it is 450 revolutions of 2.25-2.5g / sec ?