esxboy1

Hi all, is there a way to turn the boost down without a remap ? I have a 93 v1 sti , full japspeed zorst ,air filter, hks bov and it has a pp ecu chip. For some reason it's running 1.4/5 bar and occasionally hits boost cut . I find myself staring at the boost gauge to change gear before it rises above 1 bar an it's doing my head in now, I can bypass the the boost solaniod with a bleed valve but I was wondering if there are any tricks. All everyone talks about is how to turn boost up , no one interested about turning it down lol.

Paulo P

iTrader: (42)

vacuum hose from the compressor housing direct to the actuator will drop the boost right down to actuator pressure and save your engine!

esxboy1

And do what with it ?

Glowplug

iTrader: (8)

1.4/5 bar and only occasionally hits cut!?!?!?

A pukka PP chip will cut before 1.2bar. Take the chip out and see if your problems persist.

steviefastbikes

Agreed.
Will probably run around .8bar depending on actuator spring pressure.

Paulo P

iTrader: (42)

Get it looked at properly Turning it down as I said WILL save your engine until you get a proper boost controller and get it set-up correctly for what the ECU is mapped for. Personally I'd use an electronic boost controller rather than a bleed valve style one.

Don't risk driving it like it is with that boost level because you will blow your engine up.