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how accurate is the stock boost gauge?

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Old Feb 23, 2007, 07:42 PM
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how accurate is the stock boost gauge?
hey guys i was trying to find more info the stock boost gauge since i plan on running around 22psi which is ~1.5 bar which is max on the gauge. how accurate is the stock boost gauge? i'm looking at buying the prosports boost gauge but whats the sense of running 2 boost gauges. also is a AFR gauge needed without a wideband o2? i just got an autometer AFR gauge that i might sell to get a prosport gauge instead. the mods are going to be MBC, JunB.L exhaust, K&N drop in and a reflash. thanks in advance
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Old Feb 24, 2007, 12:14 PM
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bump!! anyone?
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Old Feb 24, 2007, 12:24 PM
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There is no answer on the accuracy question. They don't all have the same accuracy.

Also, 1.5 bar is only 21.75psi. You should get an aftermarket gauge on a IX to run higher than 21.75psi.

An AFR gauge goes hand in hand with the wideband o2. It's not used without one.
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Old Feb 24, 2007, 12:37 PM
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ok thanks warrtalon! i'll just sell my AFR gauge and i'll order my prosport boost gauge.
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Old Feb 24, 2007, 01:22 PM
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Right on.
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Old Mar 2, 2007, 08:41 PM
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I compared my OEM RS/MR boost gauge with three laboratory-grade mechanical pressure gauges, and the OEM boost gauge was within 1 psi of the lab-grade gauges. Unless you buy a gauge with guaranteed accuracy (that suits your desired accuracy), I don't think you're doing any better than the factory gauge.
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Old Mar 2, 2007, 08:53 PM
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does the factory piece go up to 25 psi though?
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Old Mar 2, 2007, 09:02 PM
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factory one is pretty accurate. I confirm that.
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Old Mar 2, 2007, 09:06 PM
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if you need a prosport gauge let me know...a bunch in stock...
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Old Mar 2, 2007, 09:08 PM
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Originally Posted by Warrtalon
There is no answer on the accuracy question. They don't all have the same accuracy.

Also, 1.5 bar is only 21.75psi. You should get an aftermarket gauge on a IX to run higher than 21.75psi.

An AFR gauge goes hand in hand with the wideband o2. It's not used without one.
if it wraps around twice thats??!?!? lol

yeah agreed, get a gauge.

cb
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Old Mar 2, 2007, 09:15 PM
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Originally Posted by Vishnu_Evo8
does the factory piece go up to 25 psi though?
Read my post above. It goes to 1.5 bar = 21.75psi.
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Old Mar 3, 2007, 12:15 PM
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Originally Posted by Vishnu_Evo8
does the factory piece go up to 25 psi though?
The movement of the needle is linear with boost past 1.5 bar. Mine read accurately (within 1 psi) out to 25 psi. To use it out to 25 psi, its only necessary to extend the scale on the stock boost gauge. Use a marker or whatever you like.
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Old Mar 11, 2007, 11:52 AM
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I logged some boost data today using EvoScan and the JDM MAP sensor, and my OEM MR/RS boost gauge matches up exactly with the logged values.
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Old Mar 11, 2007, 12:24 PM
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Originally Posted by mrfred
The movement of the needle is linear with boost past 1.5 bar. Mine read accurately (within 1 psi) out to 25 psi. To use it out to 25 psi, its only necessary to extend the scale on the stock boost gauge. Use a marker or whatever you like.
that sounds a little hokey

if your going to run 25 psi buy a boost gauge that is meant to read that high so you dont blow your ish up
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Old Mar 11, 2007, 11:04 PM
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yeah i plan on getting a boost gauge just waiting for the restock.
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