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Old 11 Nov 2009, 09:10 AM   #1 (permalink)
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Boost Gauge

Hi all,

Odd thing this morning, noticed the boost gauge isn't sitting on 0 when I started it up. It was all the way back at 50 but when I accelerate it goes all the way round to 0.5 ??? which is about half of the dial.

I changed the plugs at the weekend and when I was tidying up I noticed a small black pipe had a split where it joined in a T section. Not sure what this goes to, I'll follow it later when it warms up. Anyway, I cut the split bit off the end of the pipe and put it back on. Didn't do anything else. The pipe was on the top near the front of the intercooler.

Any ideas ?

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Old 12 Nov 2009, 12:35 AM   #2 (permalink)
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Re: Boost Gauge

I have an Auto Gauge boost gauge but mine used to sit at 0 but it slightly sits to the left now think the gauge not accurate and faulty as when it was New over a year ago now used always sit bang on 0 but as for your problem had my boost gauge vacuum pipe hooked up to the 1st arrow in pic this was on a T piece to the vacuum hose off the OEM Dump Valve but changed the position to where the 2nd arrow is as heard that for the best reading of boost should have it connected up before the turbo rather than after like I had before might help a bit any more cuts in the hoses you didnt see??

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Old 10 Dec 2009, 10:56 AM   #3 (permalink)
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Re: Boost Gauge

Brother, a boost gauge is a pressure gauge that indicates manifold air pressure or turbocharger or supercharger boost pressure in an internal combustion engine. So better you go to your particular car company's service center.

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Last edited by suzane; 09 Jan 2010 at 02:18 PM.
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Old 10 Dec 2009, 11:11 AM   #4 (permalink)
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Re: Boost Gauge

My psi3 says just under 0 on idle etc so maybe the reading is correct
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Old 10 Dec 2009, 11:14 AM   #5 (permalink)
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Re: Boost Gauge

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Brother, a boost gauge is a pressure gauge that indicates manifold air pressure or turbocharger or supercharger boost pressure in an internal combustion engine. So better you go to your particular car company's service center.
i do belive this is posted by a BOT !!!!
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Old 10 Dec 2009, 11:30 AM   #6 (permalink)
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Re: Boost Gauge

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i do belive this is posted by a BOT !!!!
Will keep my eye on suzane...
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Old 10 Dec 2009, 11:44 AM   #7 (permalink)
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Re: Boost Gauge

Seem to be a couple of bots floating about the site at the mo.
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Old 10 Dec 2009, 12:05 PM   #8 (permalink)
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Re: Boost Gauge

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Seem to be a couple of bots floating about the site at the mo.
If i see any i will ban them ... ... i've already banned two today.
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Old 10 Dec 2009, 01:16 PM   #9 (permalink)
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Re: Boost Gauge

Cheers Pete!





(can you tell I'm having a very quiet eveing)
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Old 10 Dec 2009, 01:18 PM   #10 (permalink)
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Re: Boost Gauge

You can see where he keeps his clean socks
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Old 10 Dec 2009, 01:24 PM   #11 (permalink)
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Re: Boost Gauge

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You can see where he keeps his clean socks
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Old 10 Dec 2009, 01:37 PM   #12 (permalink)
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Tiss a great likenee of me with the socks padding ...
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Old 10 Dec 2009, 01:38 PM   #13 (permalink)
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Re: Boost Gauge

lots of socks?
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Old 27 Apr 2010, 10:19 AM   #14 (permalink)
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Re: Boost Gauge

Obviously when the car is at sea level and not connected or turned off the dial should sit at zero. At idle the reading should be negative and (correct me if I am wrong) at cruising speed the dial should be about zero, backing off negative and accelerating positive (to what extent depends on gear, throttle position and ecu map.

I recently swapped to a prosport mechanical boost gauge as my Greddy one kept sticking and seemed to be out. I had to adjust the needle to register zero when disconnected though. It seems to read correctly now but I am yet to connect to my laptop to data log and check accuracy.

Most importantly it looks the nuts! (or the socks)
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