boost question and second turbo

[safrx7]

i had a cracked vaccum pipe or some pipe that was loosing boost.
PIP replaced this at WGT in cheshire. it was replaced by a metal pipe instead of the standard plastic ones.
 
now when i start the car at the start of the day as soon as its warm the car boost at 1.0 BAR for about 20-25 mins with awesome power you can hear the wheels grinding as you set off in first gear.
 
after 20-25 mins the car stops boosting to 1.0 bar and goes up to 0.6 0.7 bar on both turbos.
 
should this happen all the time?
 
so i switch the car off for a few hours and then it starts boosting to 1.0 BAR and 20-25 mins later back down to the 0.6 0.7.
 
can anyone explain why the car is doing this and what boost should it be running at. now that i have felt the 1.0 boost the car feels slow at 0.6 or 0.7.
 
so the issue is, the car is faster and awsome for the first 25 mins but slower in the second turbo after the new pipe got changed after 25 mins. when the pipe was cracked the 2nd turbo felt more thrust!
 
i hope u can understand what i am saying replies welcome!

[probedb]

is the car standard or not? If it\'s standard you shouldn\'t be seeing 1 bar, I think stock boost pattern is something like 0.7-0.6-0.7 bar or 10-7-10 psi.

[Paul1982]

If its on stock ECU it sounds like the cold air (engines cold) might be helping with the extra people but when warm 0.7 is standard

[safrx7]

the car is more or less standard with only stainless steel exhaust and twin apexi air filters so its kind of baffling me!

[Paul1982]

Well first thing you need to do is either put you induction back to stand or buy another ecu. Anything that raises the performance without being mapped properly with increase the chance of your engine going on you.
 
Mine had what I thought was a stock ecu but when I had it changed I found it had been chipped in japan, glad i didnt use it until I had it changed as I could of damaged my engine!!

[safrx7]

okay how do i get to the ECU and what do i need to check if its the standard ecu or not?