Stock St205 running 10-12 then 14psi Options

[cax_11]

hey, am wondering if my vsv has an issue, normally my car would build boost slowly to 12psi in 2nd gear+, only reaching 12psi at about 6000rpm upwards.
but yesterday I did absolutely nothin to the car, and it begins running 14psi, boost needle shoots right up to 14psi and soon as I get on the gas.
Is this a problem? any info or advice is appreciated. Its is basically stock with an HKS intake, gutted cat and a 3" exhaust from midpipe back.

[delusionz]

CT20b is a very responsive turbo by nature and the 10psi boost threshold begins at around 2500 to 2800 on some st205s depending on their condition

if its sluggish for you then theres something wrong with your turbo, either a boost leak (check your clamps esp the throttle body to IC clamp) otherwise perhaps the turbo itself is playing up.


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When my CT20b shredded itself the turbo company sent back a CT26 with the most common upgrade which uses td04e parts or similar, either way it gives u a steel shaft and turbine and somewhere in there is mentioned 46mm im not sure if it refers to the compressor inducer or the turbine exducer.

their reasoning was that there was no ct20b available at the time and mine was not in a repairable condition (?)