G'day y'all,
   Basic questions for all you turbo'd guys:-

      1/. Is an intercooler needed for our purposes, it seems it is a
whole area of study in itself.

      2/. Is induction length critical for turbo'd engines?

      3/. Elsewhere it is said that Renesis 10.5 compression rotors
should not be turbo'd, it is being done on road cars downunder,- comments?.

      4/. What boost are you guys running & with what rotors?

                      Many thanks,
                             Mal Booth

PS> Could Ernest Christley please advise if his electric water pump is
in-place of, or additional to, his mechanical (original), water pump?.

Yes you need an inter cooler. As you go up in altitude it becomes more important
as the turbo charger pressure ratio and heat of the charge air goes up.
You must keep the charge air temp below 140 F or so.