hi,

 

last week i've install downpipe (at the same time as my rps clutch) and since that i've much boost that i've set on my profec spec2,before that in low boost i reach 0.75bar and now 0.95bar.

is it normal and i just need to ajust my setting or not ?

i'm affraid cause the boost seem to increases as rpm increases!

yea ive read a greddy instruction guide,

 

 

there are 2 ways you can connect it up,

 

the easiest way, is the 1 youve done by the sound, the lowest the boost can go is 0.9

 

 

which is stil low, as standard is 9/10 . so thats not gonna damage things

the problem is that i want to regulate the boost at 0.7/0.75 bar in low and 0.95 in high , but with my new downpipe it's dificult, does the exhaust flow is too free.

is this a potential answer:

This is called "boost creep" quite often when fitting a new hybrid turbocharger and /or a new big bore exhaust system it has a detrimental effect on the balance of back pressure between the turbo and exhaust system, this in turn stops the wastegate from functioning as the gas pressure takes the easiest exit and bypasses the valve

any other opinion ?