[JWahlsten]

Flash is spot on with this one. Per a human factors engineering course I had a few (okay, quite a few) years ago, it takes about 4 times longer to assimilate the data off of a digital gauge vs an analog gauge. I know the change in instrumentation was partially causal in the crash of the C-5 in Dover in 2006...The gauges were updated following the accident to have a fill behind the needles allowing them to be read for trend data vs having to process numbers and the needles. The more data you have to take in quickly, the more difficult the scan becomes. Try four engines with 5 parameters each.



Long story short, get something you can read quickly and accurately without taking anymore brain cells than necessary when you only have so much attention to give. In flying or on the track, you only have a limited amount of time and brain cells available at any given time. This becomes especially important when something is going sideways...could be literally.

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[Rap]

Such as a rev shifter that flashes a light on your peripheral vision?

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[JWahlsten]

Certainly. You don't even have to think about it, just react...

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[Tahoe968]

[quote name='flash' timestamp='1410420961' post='162127']

you're not trying hard enough



http://www.eGauges.c...ges-s/21001.htm



http://www.eGauges.com/ProductDetails.as...de=150-921



http://www.eGauges.c...uctCode=310-012



http://www.eGauges.c...cks-s/22055.htm

[/quote]





These have finally been ordered - thanks to a bit of help from Flash!

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[type968]

digital gauges are too hard to read when you are driving hard, and glare can render them invisible. that's why race cars set their gauges so that the needle is pointing straight up in nominal position. unless you can get one that reads in tenths of a pound, you're better off with an analog gauge.


it's not the number that is important, but rather the movement of the needle. the gauge i posted works fine. yes, i wish the boost side only went to 15lbs in the same swept area, but it does the job. the only reason to have one at all is to make sure the system is working. boost is not a fixed number, and other factors will affect it (temp, load, etc). it won't always read the same amount. all you are really looking to see is that it is making boost, and the belt isn't slipping. it doesn't have to be all that accurate.


i am using the 951 boost gauge, and it does the job just fine, with vacuum and boost both happening in less than a 90 degree sweep.

 

Is there a howto on the forum somwhere that details how to install the 951 gauge in the cluster?  I assume you replaced the tach gauge in the 968 cluster.

 

Thanks!

http://www.968forums.com/topic/10674-boo...t+%2Bgauge

 

NVM, I think I found it

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[flash]

lol - no, but i could tell you what to do to start.

 

first, locate a KLR (you'll need this to get the signal to the boost gauge)

 

then, locate a 951 tach (no, it is not the same as the 968 tach)

 

then, send the tach out to be re-screened to show where things need to be (the locations of things are just a bit different, and if you want vacuum and boost, you need to change things)

 

at this point you are in for about a grand, and ready to start tearing things apart and rewiring the 968 wiring to meet up with the 951 circuitry.

 

when you get all that lined up, let me know, and i'll dig up details on what i did.  it was a few years ago, so it may take a bit

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