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Premium Member
113 Posts
Discussion Starter · #1 ·
Okay. Guys.
I am going turbo.
I like the look of the VDO gauges and I need your help.
Should I get the boost/vacuum gauge or just boost only?
For boost only, I want the 15 PSI gauge. Since I don't plan to run anything higher.
Now the questions, is there any more benifit to get the boost vacuum gauge and have -30hg and 25 psi
or just boost for 15 psi?
What is the point of having vacuum reading handy, for trouble shoot?
Please let me know.

Convicted GSR Rapist
2,029 Posts
Yes. Most of us have the vacuum gauge. When your thinking you have a problem with your valves, you look at the vacuum meter to see if you're loosing compression. If you have a bent/burnt/broken valve, the vacuum pressure will fluxuate. Also, i use the vacuum side of the guage to predict boost. I start to spool about -10 ... so when i'm rolling through traffic and i'm trying to avoid boost i ride at like -12 or something ... just below -10 so i dont fire up the blower. Other than that ... no real reason. My boost guage shows -40 hg/in and 15 psi. I'm not expecting to exceed 15 psi for a long long time. :)
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