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Old 06-06-2002, 06:28 PM   #1
Subi-fied
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Question How accurate is SBC-id boost gauge?

It will be cheaper for me to buy the Blitz than to buy the Profec B and a gauge. Can I use the SBC-id only for now to control my boost w/out buying a gauge?
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Old 06-06-2002, 06:35 PM   #2
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I plan to hide the controller in my console and I want to do many more mods before I put a Defi pod with Greddy gauges on the dash. Kinda makes people think it should be really fast with those gauges so I want to wait until it is
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Old 06-06-2002, 08:02 PM   #3
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think about it.........

i would assume its pretty damn accurate considering that the boost level it displays on screen comes from the same pressure sensor it uses to determine the solenoid duty.......and thus how much boost you make.

its just easier to see boost spikes etc using an analog gauge
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Old 06-06-2002, 09:18 PM   #4
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I have found that mine reads 1-2psi lower than actual.

I had Greddy electronic gauges first and now Defi and both have shown consistently that my SBC-id is reading lower than actual.

This is just mine and others I'm sure have not had this or we would have seen it posted here a dozen or so times, none the less something to think about all the same.

Mike

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Old 06-07-2002, 02:40 AM   #5
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were the gauges and sbc-id getting their signals from different sources?
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Old 06-07-2002, 02:53 AM   #6
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WRChris - at first they were but then I switched them and still had the same effect, I thought the same that perhaps it was the difference from where we tapped but this proved to not be the case.

Mike

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Old 06-07-2002, 09:45 AM   #7
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SBC was dead on for me at lower pressures but once you start going over 16 PSI on a PE turbo it starts reading a bit low.
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Old 06-07-2002, 10:35 AM   #8
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Quote:
Originally posted by god
SBC was dead on for me at lower pressures but once you start going over 16 PSI on a PE turbo it starts reading a bit low.
So I guess it will work fine for a stock turbo @15.5 psi.
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Old 06-08-2002, 03:22 PM   #9
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Quote:
Originally posted by Subi-fied


So I guess it will work fine for a stock turbo @15.5 psi.
I just tested mine and it too seems fine at lower boost levels on my car.

Mike

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Old 06-08-2002, 04:02 PM   #10
SpooledRex
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My Greddy guage and my SBC-id are both tapped at the FPR line and at "0" the SBC-id reads about a half of a pound too low. And in the upper range it reads about a pund and a half too low.

i just ignore the boost level on the sbcid and watch the greddy guage.
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Old 04-08-2003, 09:18 PM   #11
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yea but it gets tricky when yer setting the boost spike saftey feature
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Old 04-09-2003, 12:03 AM   #12
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my sbc-id was dead on with my greddy electronic. i only tested up to 1 kg/cm3, i think those are the units. when i hooked up my defi boost/timer, it read 0.07 bar higher than the sbc-id.
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