Turbo Booster Hardware - I don't get it ..

Well I do understand, that the booster allows the turbo pressure to go beyond the standard settings in the ECU. The boost itself is increased by adjusting the waste gate.

I already did so. I have an Alive Tuning remap, larger intercooler etc - but no Turbo Booster Hardware.

When reading the Alive Tuning instruction http://www.alivetuning.com/alive-boutique/download/Booster-Installation-Guide.pdf I understand they recommend no more than 18 psi boost measured at the inlet manifold. Adding the atmospheric pressure (app 15 psi) I should aim for a maximum of 33 psi = 227 kpa - as maximum.

However, without the booster I already reach 238 kpa (Nanocom inlet manifold reading) ...without going into limp mode.

So, why should I buy a booster? - and how is 238 kpa possible with the setup I have - which excludes the Turbo Booster?

Does the Alive remap already allow a higher turbo pressure thus not really needing the Turbo Booster hardware?

Lars

I would have said your MAP sensor was not working but if you are getting live data via Nanocom then it must be.
If there are no overboost errors logged then your Alive mapping must have been tweaked to allow the higher pressures.
My Stg II map needed the extra gizmo to prevent limp mode operation at slightly above 18psi.
Have you asked Gary at Alive whether he has built in the modification?

I've just send the same input to Gary. Probably the ideal way to do it ;o)

Meanwhile, why do you think the MAF could be a problem? I imagine limp-mode is triggered by the inlet manifold pressure ..

Lars

Never mentioned MAF I said MAP which measures inlet pressure and temp.

Ah sorry