Quote:
Originally Posted by svxistentialist
I imagine it will all get pretty hot at those levels of boost. For reliability you will probably need to gear back the PD blower to the equivalent of 9 or 10 lbs for safety, and you will feed it with a medium sized turbo giving fast response but not exceeding the CFM airflow speed the blower is able to handle at that setting. You will still get mammoth hp and torque provided you can cool the charge enough.
Joe  |
Exactly. You must gear DOWN the blower, otherwise you can exceed the max flow rate of the rotors. Unlike the standard Eaton roots style blowers, the Lysholms run a VERY tight tolerance between the male and female rotors which results in very good efficiency but have little area to flow beyond their max capabilities. You will NOT want to run that SC at increased RPMs. 1600ax at 14k rpm is pumping out charge air in excess of 245F. Even with charge cooling that's HOT.
You have little to worry about spraying before the SC affecting the bearings. Lysholms have fully sealed bearings on the rotor side. Stay away from spraying any concentration of meth above a 40% ratio as it can affect the housings, and the MAG rotor if you have that option in your particular 1600. Water/alky works well anyway.