keeping a t25/28 at 5 psi

[A51jeremy]

Hello all i no im probaly asking a question that has been asked 1000x befor but how do u keep a turbo tht has a standard wastegate pressure of about 9 psi if i rember correctly at 5 psi ???

 

[frank]

with a 4psi actuator spring and a boost controller

 

[A51jeremy]

so i could get a diffrent spring and opend exsisting actuator and replace or a complete actuator ?? this is for an mx5 .. but the people on them forums are as much use as a wet lettuce xD

 

[frank]

yeh, sub 5psi actuators are pretty rare, so you can open a higher one and fit a lighter spring, there should be some pics of mine on here somewhere

 

[A51jeremy]

sweet cheers buddy lots of help !! been wondering how pps make these 5 psi for a while now

 

[frank]

here,s one of my modded ones at about 7 psi iirc, but you can get them down to 3 or 4psi np, and a manual boost controller help reduce any creep