15.7 PSI reading on my torque pro app today

[REDSHOCGO]

Today I was driving and went WOT at about 50 miles an hour. My torque app showed PSI at 15.7. I have never seen it this high usually has been maximum of 12.X. Is this normal? I just recently logged and sent to unleashed where torrie updated my tune. Maybe I didn't log properly? What is te maximum PSI you guys have seen?

[Larrylu]

Running 4+, 12.X lbs. is my historically usual high with a rare low 13 lbs. on occasion. Usually a short blast of high torque lower rpm nets me a higher boost reading. Very recent higher than normal of over 13 coupled with not grin inducing performance, and a top of the gear belt like squeak proved to be a vacuum leak at the high pressure fuel pump sensor.  Threw a code for a over boost condition according to the dealer. With the leak fixed my boost is lower now mostly 11 to 12 lbs. but the car runs soooo much better!  The grin is now back on my face for sure.

[REDSHOCGO]

Ok all is well. It's parrot the tune

[Needmoreboost]

Unleashed 14-15 psi is the norm. 

[TSS]

Well....since I just got a gauge....  I have seen 11 at but not 12 yet.  I guess I need to play more.

[IHeartGroceries]

We are talking sustained boost here, right? Not spiking?

And an Unleashed tune targets boost at 14-15 lbs?
I thought this was above what is generally conceived as the max, sans WMI.

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[TSS]

I spike at 11.

[dmharvey79]

I've seen readings in the 15s on Torque too, sustained readings tend to be in the 12 or 13 range though.

[DJE624]

I have lost faith in torque.  At least as far as computing boost goes (so far).  I think the only way to get a true boost read is with a mechanical gauge. 

[dmharvey79]

Based on the data logs I've done so far it seems pretty accurate (save logs to the Torque site and then go there to pull them up, it is pretty cool). All of the measurements are coming directly from the ECU right?

[DJE624]

Right, and from what I know, the ECU does not have an actual boost signal.  Torque is computing KPA minus BP equals PSI (whatever that is).  I want a gauge that will be mechanically operated and tied directly into the right vac line.

[BiGMaC]

Right, and from what I know, the ECU does not have an actual boost signal.  Torque is computing KPA minus BP equals PSI (whatever that is).  I want a gauge that will be mechanically operated and tied directly into the right vac line.

Me2... not knocking Torque... I just want a measured number.

[IHeartGroceries]

Mechanical gauge is definitely the best way to go.

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[SwampRat]

I think Torque is a useful tool to an extent , but when it comes to boost on our EB engines ; mechanical is the most acurate and is what I went with .

[Brucelinc]

I would expect a mechanical gauge to be more accurate than a ECU based gauge for measuring boost.  However, wouldn't the ECU based gauge still be useful in establishing a baseline and for comparing different tunes?  Also, would it be useful for comparing values at different RPM or throttle openings?