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fredmeister fredmeister is offline
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Join Date: Oct 2002
Location: Baltimore, MD, USA
Posts: 2,235
Originally Posted by T77911S View Post
ok, got it.

what about this wide range of vacuum readings.
At idle my vacuum is 6.5-7.0 psi absolute read off the MAP sensor I installed.

Dont know at cruise but I guess from my VDO gage its pegged usually right above the negative 0.5bar to neg 0.4bar mark depending upon the levelness of the road I am on. This translates to approx 7.5 to 9psi absolute. Of course very light throttle applied.
1979 930 Turbo....3.4L, 7.5to1 comp, SC cams, B&B intercooler, Snow Perf water/meth injection, Rarlyl8 headers, Garret GTX turbo, 36mm ported intakes, Innovate Auxbox/LM-1, custom Manually Adjustable wastegate housing (0.8-1.1bar),--running 0.7bar max
---"When you're racing it's life! Anything else either before or after, is just waiting"
Old 06-17-2013, 06:40 AM
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