Thread: Ignition Timing
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fredmeister fredmeister is offline
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Join Date: Oct 2002
Location: Baltimore, MD, USA
Posts: 2,235
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I leave the boost hose connected during the timing as it is teed off the same line as the vacuum line. The reason this works is that I did some testing on my distributor and it seems that applying vacuum to the boost pot has no effect and applying boost to the vacuum pot has no effect. It appears each can or pot only moves in one direction...so that allows running both lines from a common source.
Thus, to answer your question......YES -----boost hose stays connected because timing at 4000rpm in the driveway sees no boost only vacuum and this has no effect on the boost can.
Does that make it more clear?
You know what bugs me is that tuning experts like Steve at ImAuto and such don't ever chime in on these posts leaving us all hanging for answers......frustrating and disappointing.
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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
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Last edited by fredmeister; 02-12-2009 at 03:23 PM..
Old 02-12-2009, 03:18 PM
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