14-09-2015, 10:36 AM
I run an M90 on my C20XE engine and believe me at 20psi it would need some serious cooling. I'm struggling with mine at 10psi and I have a big charge cooler. The other issue to consider is an Eaton M90 takes 45hp to drive it at 7000 rpm. They do make for a very drivable engine though and flat torque curve. If i were using one on an XUD it would be the Eaton M62.