Quote:
Originally Posted by BrewRifle
Quote:
Originally Posted by Locksmythe
As a casual observer of the supercharger threads, this seems counter-intuitive. Sounds a lot like turbo lag to me...
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Boost builds as the RPM's rise with a centrifugal supercharger...
A very simple division between the two is low-end power that drops off with a positive displacement superchargers vs. linear power with a centrifugal type supercharger that increases with engine rpm. The linear curve from a centrifugal supercharger compliments an engine’s existing power band, instead of working against it like a roots or twin-screw. Another significant benefit is that the efficiency of a centrifugal is much higher, meaning a smaller amount of the work that goes into turning the compressor gets converted to heat with a centrifugal vs. a positive displacement supercharger, and especially so vs. a roots type supercharger. So it takes less energy to make power with a centrifugal, and the power that is created is much more usable power.
Here's an ESS-625 dyno showing the boost building - http://www.bigdynodatabase.com/DynoG...0068-DLSJ5.jpg |
Thanks so much I've been looking for this info boost chart !!!!
The ess 625 does make boost at 3k rpm where it will depend is whether you are on the throttle or not .