Quote:
Originally Posted by PeteKz
The two WURs (with vacuum ports) I am familiar with tend to not give you enrichment when you put your foot down, but wait until the RPM gets high. Kind of odd, IMO, but that's how they seem to work.
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Pete,
As I see it, those WURs lean out/raise pressure whenever you have manifold vacuum, that is at idle and part load.. this is what provides enrichment when vacuum decreases at load/WOT. Now, when you floor the pedal at low rpm, vacuum doesn't drop to zero immediately...
A device that would bleed off pressure whenever you go WOT could be the early TPR (Throttle Position Regulator) hooked up parallel to the WUR, in your case with a modified cam so it would bleed off to say 2.3-2.6 Bar only and always when throttle is wide open (and not also at idle like the original early TPR)...
BUT: Why would you want a behaviour like this? I guess it would only lead to worse fuel economy dumping extra fuel at low RPMs when engine load / needed power would also be rather low?