2.0L LNF Performance Tech 260hp and 260 lb-ft of torque Turbocharged tuner version.

Which Boost Gauge should I trust? LOL

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Old Jul 8, 2012 | 02:40 AM
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FasterIsBetter's Avatar
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Which Boost Gauge should I trust? LOL

Well, I noticed my RPD reads 25.5psi, my interceptor reads 22.7psi, and my mechanical boost gauge reads 29-30psi. Which is right? Rofl?!?

3 bar maps btw and ZZP hooked up the autometer mechanical boost gauge.

Last edited by FasterIsBetter; Jul 8, 2012 at 02:40 AM. Reason: Automerged Doublepost
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Old Jul 8, 2012 | 03:58 AM
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wow lol, sub'd.
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Old Jul 8, 2012 | 04:40 AM
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Technically they could all be right depending on various situations.
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Old Jul 8, 2012 | 08:01 AM
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The Autometer mechanical gauge is most likely the correct one at high boost.

DO they match up to 22 psi ok?

Th eIntercepter suffers from the same malady as HPTuners does logging over 22.4 psi, (255 kPa), the ECU can't do it on that channel.

The RPD is maxing out at the sensor limit for the scaling of the 3 bars in the tune I believe.

The gauge is the correct one here, that's why ZZP installed it.

29 psi on the stock turbo is death. I hope you are large turbo now.
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Old Jul 8, 2012 | 11:31 AM
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id say the macanical is right, it reads straight boost, no calculations, unless of course its broke. my defi, which is electrical signal from a boost prob is the same as what my ecu reads, just gets there faster
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Old Jul 8, 2012 | 11:47 AM
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Mech. almost 100% of the time
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Old Jul 8, 2012 | 03:58 PM
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Originally Posted by Iam Broke
The Autometer mechanical gauge is most likely the correct one at high boost.

DO they match up to 22 psi ok?

Th eIntercepter suffers from the same malady as HPTuners does logging over 22.4 psi, (255 kPa), the ECU can't do it on that channel.

The RPD is maxing out at the sensor limit for the scaling of the 3 bars in the tune I believe.

The gauge is the correct one here, that's why ZZP installed it.

29 psi on the stock turbo is death. I hope you are large turbo now.
Hell no I'm not on the stock turbo. S256ET, and I requested the gauge be installed.
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Old Jul 8, 2012 | 04:09 PM
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Most likely the mech. one is T-ed off from a line from the manifold
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Old Jul 8, 2012 | 04:13 PM
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mechanical!
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Old Jul 8, 2012 | 05:18 PM
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mechanical one, rpd maxes out at 25.7 and interceptor maxes out at 22.7
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