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Two Boost gages

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Old Feb 20, 2004 | 05:30 PM
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Question Two Boost gages

Is there a way to monitor the turbos separately?

Why would I want to do this you ask? Inquiring minds want to know.

Jim
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Old Feb 20, 2004 | 05:54 PM
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You could put some sort of high temp nipples on the turbo outlets, and plumb them into metal tubing, to separate boost gauges. You might wind up melting something.

Probably not a good idea.
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Old Feb 20, 2004 | 06:07 PM
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There are more worthwhile mods to do than waste money on this. Believe it that if one turbo goes bad, you will know it from obvious symptoms.
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Old Feb 20, 2004 | 06:55 PM
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Well techinically I have 3 right now. The Power FC, the AVC-R, and Defi' Boost Gauge.
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Old Feb 20, 2004 | 07:49 PM
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Originally posted by 0110-M-P
Well techinically I have 3 right now. The Power FC, the AVC-R, and Defi' Boost Gauge.
lol, there is your answer. The funny thing is that I bet they all read different preasures at any given time.
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Old Feb 20, 2004 | 10:53 PM
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What if I threaded a nipple in the y-pipe above each output impeller? Would heat be a problem on that side of the turbo.
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Old Feb 20, 2004 | 11:00 PM
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It would still get extremely hot.
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Old Feb 21, 2004 | 11:17 AM
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I don't quite understand why you would want to do this?? the accurate place of measurement is near intake manifold side.. So, are you trying to see what your turbo is spoolin?? you are unable to get accurate reading if you just put a nipple there.
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Old Feb 21, 2004 | 11:28 AM
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the only reason that i can think of is to check for leaks and pressure drop across the IC piping....other than that, whats the point?
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Old Feb 21, 2004 | 04:52 PM
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Diagnostics for a malfunction in the turbo control system.

Been there, done that, posted it to THIS forum probably 1-2 years ago.

You don't have to tap anything. It's already there, you just have to know where to tap in.

Regards,
--Ashraf
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Old Feb 21, 2004 | 07:57 PM
  #11  
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Ashraf don't keep me in suspense. Tell me where.

Jim
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Old Feb 21, 2004 | 11:35 PM
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wapelhj, do you have a non- sequential set up on your car ? otherwise i dont understand why you would want to monitor boost patterns on a sequential... unless u want to read the boost when the secondary spools to kick in.
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Old Feb 21, 2004 | 11:46 PM
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4 rotor 964 lol
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oops.
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Old Feb 24, 2004 | 12:21 PM
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Search for posts in the 3rd gen section by my username (too busy to do another write-up)...
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Old Feb 24, 2004 | 03:26 PM
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little lesson in physics


the turbos themselves do not ouput pressure, they output airflow, it is not until the airflow (measured in CFM) hits a wall or obstacle that pressure is established, so, if you measure pressure anywhere within the system, that is an accurate representation of the entire system

the only factors that i can theorize making any discrepancies would be temperature of the air, of course, downstream from the intercooler the pressure will be lower and the air more dense

so you might get a slight difference in reading there
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Old Feb 24, 2004 | 09:03 PM
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I have an Autometer and the Blitz SBC-iD. But they're both set up normally, I see no point to the setup you're going for.
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Old Feb 24, 2004 | 10:32 PM
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Originally posted by 93BlackFD
little lesson in physics


the turbos themselves do not ouput pressure, they output airflow, it is not until the airflow (measured in CFM) hits a wall or obstacle that pressure is established, so, if you measure pressure anywhere within the system, that is an accurate representation of the entire system

the only factors that i can theorize making any discrepancies would be temperature of the air, of course, downstream from the intercooler the pressure will be lower and the air more dense

so you might get a slight difference in reading there
And in the stock sequential system, with the CRV closed, you have the situation you have described above, and can determine the pressure of the 2nd turbo until 4500rpms when it opens up. My physics is way too rusty to say anything else.

The short of it, is to measure the 2nd turbo, you tap into the line of the y-pipe section that attaches to the 2nd turbo.

--Ashraf
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Old Feb 24, 2004 | 10:36 PM
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Negative on the physics. Airflow is caused by a pressure differential, hence there is pressure that can be measured anywhere where there is airflow.
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Old Feb 24, 2004 | 10:50 PM
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^not by the equipment we can purchase ;-)
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