Quote:
Originally Posted by regal
Do you find your Vortech "lacking" in mid-range torque needing the wastegating? The complaint with centr. chargers has always been that for the money you don't gain much in a bigger powerband, mainly just up top (in comparison to a pos disp or turbo.)
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You need to wastegate the centri otherwise you're going to overspin the charger at higher end.
You are correct that the complaint most folks have with centris is that peak boost is only achieved at redline with a linear growth from the bottom. Upgrading the system to allow hitting peak boost lower in the powerband (by way of smaller pulleys or other means) means that you'll overspin beyond that point. The wastegate bleeds off that excess boost so that the power growth is no longer linear, but more of a hockey stick - expands to peak before redline, then maintains that peak boost until the end.