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Re: VDO accuracy and noise.
Posted by Kyle [Email] (more from Kyle) on Thu, 19 Dec 2002 11:03:29
In Reply to: Thanks, All... Question for Kyle >>>, Joe98, Thu, 19 Dec 2002 09:17:37
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It seems that the most serious complaints about noise center on the VDO "boost only" gauge.
To be completely honest, my gauge makes a muted noise that I VERY occasionally notice when its flying back and forth between high boost and vaccum. No one else has EVER noticed it, and I am hyper-sensitive to all noises generated by my car. If you're concerned then simply add a "snubber" like everyone suggests to provide an increased dampening effect on the movement of the needle.
Regarding accuracy - I think Andrew is the only one who continuously admonishes the accuracy of VDO gauges. Perhaps he had a bad experience with one. Anything is superior to the stock gauge, which has no accuracy at all.
Base boost in my car is about 6psi. When I send the compressor line directly to the wastegate, my gauge reads (low and behold!) 6psi. Sure, the actual value may be 5.42psi, or 6.53psi, but as long as it stays within +/- 1psi of the true value, it's good enough for my purposes.
When I mounted mine, I put a "T" fitting on the vaccum line running to the stock gauge, and twisted a silicone vaccum line directly on to the VDO's threaded nipple. With the silicone hose, I saw no need for any intermediate coupling between the gauge and the line. However, a rubber hose would probably crack eventually if stretched in this way.
This configuration as performed flawlessly for almost two years now.
-Kyle
'91 9000T
150,000mi
posted by 24.60.138...
Posts in this Thread:
- Advice on auxilliary turbo boost gauge..., Joe98, Wed, 18 Dec 2002 14:43:10
- Thanks, All... Question for Kyle >>>, Joe98, Thu, 19 Dec 2002 09:17:37
- I use the VDO illuminated vaccum/boost gauge >>>, Kyle, Wed, 18 Dec 2002 16:46:24
- Re: Advice on auxilliary turbo boost gauge..., Phil, Wed, 18 Dec 2002 15:00:08
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