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Bleyseng Bleyseng is offline
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Join Date: Jan 2000
Location: Seattle,WA
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That is what you use the wavetek for, to set the MPS on the bench. The "stock" or known values are on Brads site and work for stock cars. Set your good MPS to the 043 settings and try it.
To establish the MPS settings Porsche/VW/Bosch ran the engines on a dyno then they bench adjusted the MPS's in batches to those settings. All stock cars use about the same partload setting but that is too lean for my car. You are doing you own tuning by going to a dyno . You really only need the Wavetek for the WOT/machine stop screw and to record the settings for the future. You will be using the dyno's A/f meter to adjust the inner screw and outer screw setting the partload and WOT.
This will be the optimum settings for your engine, so it will run very smoothly and have the most power.
Before doing dyno work, do a general tune up, adjust the valves, new plugs, points, cap, rotor, oil, blah blah so the engine doesn't have that to also deal with. Set the fuel pressure to 29-31 lbs.
Take the MPS apart and remove the stop screw per Brad site so the MPS is ready to adjust when you are there. Bring some tools too as they won't have any idea what you are trying to do, but will be interested in learning how.
Geoff
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Old 03-22-2003, 03:43 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #20 (permalink)