Made a VDO Clock Boost Gauge
#1
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I am doing a turbo build on my 3.2 and wanted a boost gauge that went in the clock hole. I looked at the 930 ones and was shocked at the price and all others i could find in the right size had ricer crap written all over them or did not fit with the rest of the dash. So I had an extra clock that broke lying around and i figured why not try and make it into a boost gauge? I bought one of those average 30 dollar boost gauges and took it all apart until I had separated everything but the actual mechanical part of the gauge and then broke the needle apart and connected it to the minute hand drilled a hole out in the back of the clock for the vacuum line and used two silver screws to secure it to the clock face (will be replace with black ones eventually...) I still hadn't put the trim ring back on in the pics but it gives you an idea. also the video shows it does indeed work (I am just blowing and sucking on the vacuum line to create pressure.) 1 o'clock is about 4 psi while the white needle is about 7psi. 9 is about -25psi while 5 is about 20 psi.
![](http://img526.imageshack.us/img526/4143/dscf1530u.jpg)
![](http://img851.imageshack.us/img851/6020/dscf1523j.jpg)
http://www.youtube.com/watch?v=Ve3RM...ature=youtu.be
![](http://img526.imageshack.us/img526/4143/dscf1530u.jpg)
![](http://img851.imageshack.us/img851/6020/dscf1523j.jpg)
http://www.youtube.com/watch?v=Ve3RM...ature=youtu.be
#3
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How much boost do you run on that engine?
I only ran a lowly 6 psi on my aftermarket Rajay turbo and that thing still kept pegging the 170 mph speedo!
I only ran a lowly 6 psi on my aftermarket Rajay turbo and that thing still kept pegging the 170 mph speedo!
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around 6/7 psi at the moment, I may turn it up to 8 or 9 if I get an intercooler. 7 psi is enough to embarrass most cars it seems haha, I will post a build thread maybe next week. I was even thinking of doing a how too.
#6
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In a race car I crewed, we used a boost gauge out of a twin engined cesna airplane. Only one of the two needles registered(it was one gauge for two engines), but was kinda cool in place of the clock.
i don't have pics...sorry.
i don't have pics...sorry.