How to Improve LXi Engine Cooling Performance

[davidbrady]

Yes, it should Ernie. Your bus has the lowered S60 just like the LXi's and limited louvers on the rear deck lid. Anyone who's driven Hwy 15 outside Las Vegas up Baker Hill in 115 deg F ambient heat knows that even with a fresh 7 row radiator core and hydraulic fan system one needs to power down to keep coolant temps stable. Under most conditions we're fine but there are grades and conditions where I'd like to have more cooling capacity. My recent experience running with the under-radiator shroud removed opened my eyes to the possibility that we may not be radiator core limited but more likely fan CFM limited. Opening the bottom up allowed the fan to move a lot more air. My coolant temps were dramatically lower.