[Diy_efi] "Wet" Manifold Questions

[Greg Hermann]

>
>Also, in relation to Mark's reply, almost all, if not all OEM
>applications of Positive displacement SC's (roots and Lysholm)
>put the blower AFTER the throttle body.  These blowers do not
>apparently like to work in blow-thru applications, at least
>according to everything I have read, and been told...
>

>Steve
>
Running  a positive displacement blower in a (partial) vacuum, such as is
done at light load when it is in a draw through configuration tends to
minimize the losses, blow-off valve or no.

Running one blow through would tend to create huge losses and get
everything really hot---

Greg



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