Hello

People on this forum advice me to connect boost gauge on vacum (left side on inlet mainfold). Before I have boost gauge connect after intercooler ( on aluminium "thing" ,sorry bad english). If I connect it on vacum, in idle I have abput -0.6 and when I boosting boost dont want go under 0.1 bar, But if I connect gauge after IC , I have boost 0.7.

Any ideas?

thanks

 

Your gauge is fucked maybe?!

 

no. new gauge

 

Somethings not right.

if you connect a boost gauge before the throttle you will not see any vacuum, only boost.

If you connect it after the throttle plate, you will see boost and vacuum.

 

you were told to connect the gauge to the pipe on the right of the inlet

 

fast_ford_uk does the right side have a different vacuum/boost pressure to the left then

 

obvously not if ther both connected to the inlet, was just saying

 

Only banter mate

 

"""""f you connect a boost gauge before the throttle you will not see any vacuum, only boost.

If you connect it after the throttle plate, you will see boost and vacuum.""""

yes. but in 2nd case, I have vacum on idle, but when I boosting hard I dont have boost under 0.2 bar, and when I relase throttle boost fall in vacum suddenly.

 

If you close throttle..........do you expect the excess boost to find a way inside the inlet magically then?!

 

any ideas? my actuator is ok he holding 1 bar

 

Your confusing me now

 

why? I test actuator and he is holding about 1 bar- no weak spring

look this :

""" Some FPRs also take a vacuum feed from the manifold and increase the fuel pressure as the load increases. With a properly mapped ECU the vacuum function becomes surplus to requirements and can me removed."""

Deos this mean that I must connect fuel pressure regulator to inlet mainfold (right pipe) ?

 

Your making this far more complicated than it has to be!

By connecting your boost gauge behind the throttle plate, do you expect boost to continue entering the plenum when the throttle plate is closed?!

NO - thats physically impossible!

 

Ok I know that I complicated too much, but thats just because I have no idea for some thing which makes me .

"...do you expect boost to continue entering the plenum when the throttle plate is closed?!" No and this is not my problem. you didnt understand my bad english.

when I connect boost gauge to pipe after intercooler (aluminium thing which goes from IC to engine) I dont have vacum but I have boost 0.7 bar. BUT when I connect boost gauge to inlet mainfold I have idle at vacum but when I driving hard in 4th gear or 3th gear and push throttle hard I have only 0.2 bar boost maximum! why?