Car Holds Boost Till Certain Rpm

[tiesto]

Hi guys

recently I noticed that my car holds .5 bar until just over 4500 rpm and then it kicks all the way to .9 bar

Im using gfb bleed valve and before it just used to boost to .9 bar straight away but now its holding it back for some reason?

is this normal as i'm pretty sure it never used to hold boost and then kick more...

any information would be great

thanks

[fEkuaR]

Is this an r32 or r33? The r32 boost i believe is vaccum controlled so a tpiece boost controller should'nt have issues with the boost going crazy like that. The r33's are electronically controlled and have a 2stage boost solinoid that must be by passed to run a tpiece controller. Otherwise it will spike its head off.

[tiesto]

r32

i was running .9 bar before, and i turned it down to .7 bar

now i just recently turned it back up to .9 bar by adjusting the bleed valve, and it seems to hold boost at .5 bar and then like sorta like you said, spiking to .9 bar.... it does hold .9 bar smooth though no spiking over that