APR 93 octane tune 18 psi?

[TTurbo12]

So i got an apr tune almost 2 years ago but just installed a boost gauge tonight... I know I'm lazy.

Went and drove around for a bit and boost seems to build nicely and quickly touches 17 psi then drops to 15 and fluctuates from 14-15 until it starts to drop at the end of the power band.

So my question is, does the APR tune actually provide an honest 18 psi? or do I have a boost leak or some kind of other problem.

Oh, and at idle seems to keep a steady 20 in Hg

[1fast2liter]

you will peak at 18 or so and will drop to 14-15 till redline... mine des it too. a manual boost controler and 20psi all the time is doable.

[12vGtiVR6]

Ive got a KN intake, Apr TIP and Stage 1 Flash 93, On the highway i peak at 20psi and it stays

[aTTlas]

Huh. My APR 93 will spike to 25, and will hold solid at 20 just fine. Apart from the Forge DV, the car is otherwise stock.

[Shawninho]

I have stage 1 93 on my 180q and it spikes to 20 and holds at 16-17. I would imagine that same tune on a 225 would have higher boost?

[Currancchs]

Stage II (Just deletes rear cat over stage I) APR 93 octane tune - Spike to ~19.5, holds 15-16 psi. Although I have some other issues that MAY be causing slightly low boost requests. This log was 3rd gear, just over a 19 psi spike I think.


Please ignore the Y-axis label, it should be mbar boost (absolute pressure, not gauge, subtract 1000 mbar to see boost gauge pressure)