What is the stock boost on the 19' SI

[svizcarra]

Hi! I am in South Florida. I put in a K&N drop in filter on the stock air box & a Mishimoto silicone induction hose. Car has 1100 miles. Sometimes gauge reads 18psi in Sport Mode. No other mods have been done. I thought stock was up to 16pis? What does the KTuner with TSP Stage 1 get this too?

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[jakabony]

Stock maxes at 20.5 I believe, but that is depended on ambient temperature and atmospheric pressure. The stock ECU only will make enough boost to hit specified target levels. That varies based on the aforementioned conditions.

The TSP1 tune, Map 3 in sport mode, will hit 25psi.

 

[GTA1977]

With Ktuner 19.5/23, I hit up to 24 but maintain a constant 23 PSI in sport mode.

 

[jaco]

With a stock SI I've seen 16-20 PSI

 

[Micah]

With a stock 17 si, I've seen 18-19 psi in sport, and in really rare circumstances up to 20psi in normal.

With TSP Stg 1, I've seen 24-25 psi on map 3 in sport, and occasionally 26psi.

The TSP Stg 1 is amazing, very few people have ever complained about it, and those who complained typically were running other modifications which I believe caused the issue (Injen Intake, BOV, etc.)

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