Originally Posted by supershaft
Funny. I think they are lot more fuss for a lot less return. I would rather use a plain ol' manometer any day over one. They are less accurate for there super short tube. They aren't more accurate for more or less air rather more or less throttle position but then that is debatable because they measure more throttle but they are flowing the same air as before and not measuring more throttle flowing more air which is really the whole point of more throttle. Closing the throat insures the same amount of air as with the throat more open although the throttle is open more thusly really measuring the same amount of air. A regular manometer measures what is really going on in real time. They can't be beat IMO. If a Uni-syn works better for you more power to it but don't blame the manometer. There are reasons why just about every tuner out there uses a manometer or an electronic gadget that mimics a manometer over Uni-syn's. Whether or not they are connected to the carbs or a flow bench.
good grief .... talk about beating a dead horse... how many times do you want to discuss the same thing?
BS a plain manometer is more accurate. they are essentially the same in accuracy, with Unisyn being slightly more for reasons stated above.
what a std manometer is better at is being able to look at a gauge in a remote location. which is better suited for a tuner because they are running motor, making changes looking for real time feedback.
a Uni-syn is a tool that measures air flow allowing anyone to quickly balance their carb for dirt cheap ($25)
don't remember claiming Uni-syn was the best tool for everyone. it's just another tool that works well.