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Thierry25 Thierry25 is offline
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Join Date: Feb 2009
Location: FRANCE (Besanšon)
Posts: 310
Here is the 3rd measurement

As seen as before, it is too lean above 4800 RPM. I could even doubt the frequency valve works correctly

So I dialed 40% frequency valve duty cycle between 2000 and 4500 RPM and I pushed it to it maximum ( 80%) between 5000 RPM to 6500 RPM

In order to compare, I did the run in the same place . I fitted the scale and pictures using picture software.... This is for comparison purpose only.

As can be seen, the fuelling is improved in the low mid can. The AFR drop to real low value (9.5 around 3500 RPM). The mid high are a little bit improved (about - 0.5 on AFR) However it's still too lean. The frequency valve with it controller setup works correctly. But I hit a wall....can not get more fuel.
965 C2T / 1991 3.3 TURBO
Old 06-27-2009, 09:12 AM
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