Vacuum Guage

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RRoller123
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Your car is a: 1980 FI SPIDER 2000
Location: SAGAMORE BEACH, MA USA

Vacuum Guage

Post by RRoller123 »

Where do you guys find it best to install a tuning (temporary) vacuum guage on our 2L FI engines? At the vacuum port under the intake that leads to the disty advance?

Pete
'80 FI Spider 2000
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bran100
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Joined: Thu Feb 08, 2007 12:34 am
Your car is a: 1982 Spider
Location: Draper, Utah

Re: Vacuum Guage

Post by bran100 »

I teed into one of the lines that went from the plenum to some barrel shaped item right below it that's attached to the fuel rail. Looks like a fuel filter, but I'm not sure why there would be a vacuum hose on it. I put a gauge where the clock was, just because it looked cool to have the additional needle movement on the dash.
So Cal Mark

Re: Vacuum Guage

Post by So Cal Mark »

that is the pressure regulator and increases fuel pressure under load, hence the vacuum hose
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