what is a vacuum gauge?

[myaccord7]

i saw a few on ebay and i didnt know what they were.
thanks



zach :sad2:

[k-roy]

Umm, its a gauge that shows vacuum.
Proper vacuum to the carb/throttle body and accesories like the distributor and A/C idle boost is essential for a well running engine.

[A20A1]

If you get one, hook it up to the intake manifold at the rear of the manifold... or to one of the vacuum ports on the left side of the carb, I believe they leave one port capped from the factory in order to hook up a gauge...

you should get a reading of 22"

24" is really good

you may only get 18" - 20" though.

[Sabz5150]

Vac gauges can tell you all kinds of neat stuff if ya know how to read 'em. I've got one on my dash, was inexpensive and well worth it.

[myaccord7]

should i tap a hole in my runner when i finish my dcoe swap? or what should i do? thanks


zach

[AccordAddict]

Hey i want to get a vacuum guage, along with an air/fuel ratio guage, how hard are they to set up?

[A20A1]

tap at least 2 runners and hook them together... or all 4 runners if you want to be safe...

Tap the top not bottom of the manifold

this is more for your brake booster and vacuum advance to have a vacuum source... the guage can fit somewhere in there too...