replacing factory boost gauge - Page 2 - Subaru WRX Forum
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post #16 of 22 Old 07-06-2005, 04:34 PM
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Quote:
Originally Posted by wrxtacy19
or you can get the right readings from your laptop and save your money
I know of no such device. Yes, most engine management systems give you an accurate boost reading. But they are way more expensive than any boost gague.
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post #17 of 22 Old 07-06-2005, 04:40 PM Thread Starter
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what did you use as a controll? how did you know what the ACTUALL psi reading was that you compared to the guage?
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post #18 of 22 Old 07-07-2005, 08:55 AM
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Used a friend's $3500 vaccuum/pressure gauge tapped into the same place as the boost gauges, plus the reading from the UTEC. I'm not sure the brand, but it's for industrial/military applications, and from what I've heard it's among the most accurate pressure gauges in existence.

The facts speak for themselves. The electronic ones were all within .1 psi of each other, and within .1 psi of both the UTEC and the pressure gauge. The mechanical ones were not. In fact, all read lower than actual pressure. Some as much as 2 psi lower.

But, you seem convinced that I'm wrong, so buy whatever you want for your car. I'll stick with electronic gauges on my car.
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post #19 of 22 Old 07-07-2005, 11:54 AM
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Cosmo....Where could I find a Elec. boost gauge? All I seem to find are mechanical!
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post #20 of 22 Old 07-07-2005, 12:12 PM
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Originally Posted by 03wrxwgn
Cosmo....Where could I find a Elec. boost gauge? All I seem to find are mechanical!
Blitz, DEFI, APEXi, GReddy, and even some autometer are electric. Check out JSCSpeed or even Gruppe-S for some.
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post #21 of 22 Old 07-07-2005, 12:18 PM Thread Starter
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i just wasent sure what steps you had taken to make sure your test was accurate.

Quote:
The facts speak for themselves. The electronic ones were all within .1 psi of each other, and within .1 psi of both the UTEC and the pressure gauge. The mechanical ones were not. In fact, all read lower than actual pressure. Some as much as 2 psi lower.
cant argue with that.
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post #22 of 22 Old 07-07-2005, 12:31 PM
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Quote:
Originally Posted by 03wrxwgn
Cosmo....Where could I find a Elec. boost gauge? All I seem to find are mechanical!
Autometer makes several electronic models as well as the others listed. I have their carbon fiber gauge (with yellow writing, so it matches my car ). It has a peak hold and warning light that works great. I only wish the illumination was better.

If I had it to do over again, I'd get the Greddy gauges. Those will be on my new car...
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