Windage tray ,yea or nay..

[EXTRPR50]

Im about to put a roller motor into my '84 GT. Do windage trays make a difference in performance?

Anyone ever had a dyno on them, or know an article where it was done?
Thanx

 

[fordman54935]

I'm pretty sure that they are good for 5+- HP. They control the oil better by keeping it down in the pan rather than splashing up onto the crankshaft, which reduces parasitic power losses.