profec b 2 cant get boost stable with 14b on my 2g gsx

[pOlAkGSX]

i have a profec b spec 2, have had it when i had a t25 worked well, now with the 14b i cant stablize boost. it will go to over 18psi everytime, and i want to keep boost at about 14 on low and 18 on high. any help would be awesome.

thanks guys

 

[ChicagoGSX]

i have a profec b spec 2, have had it when i had a t25 worked well, now with the 14b i cant stablize boost. it will go to over 18psi everytime, and i want to keep boost at about 14 on low and 18 on high. any help would be awesome.

thanks guys

Does it go straight to 18 psi, or does it go to 14 psi then creep up to 18+? If it does that you have boost creep and need to port out the wastegate flapper hole or even get a 34mm flapper. Try running a vacuum line straight from the wastegate actuator to a boost source to see if you have a bad actuator.

 

[pOlAkGSX]

no im trying to get the boost stabalized, it just builds and goes up to about 21 psi i cant get the boost to stop ant any point

 

[ChicagoGSX]

no im trying to get the boost stabalized, it just builds and goes up to about 21 psi i cant get the boost to stop ant any point

Sounds like boost creep to me, caused by your 3" exhaust. Try running a vacuum line straight from the actuator to your boost source just to make sure it isn't a bad actuator.

 

[gehoee]

hey do you happen to remember what settings you had when you were running the t-25 turbo. im having trouble tunning mine . it wont stabilize under WOT.