Windage Tray
Just playing,no road racing !!
This comment from me has no real value in regards to any slant 6, but I think it's interesting.
I have a good friend who races a '72 Mustang 351 Cleveland in NHRA's Stock Eliminator. He's been running this same car for at least 20 years and has always kept meticulous performance records on it; repeatability and max horsepower are both of critical importance to him (the car runs low 11's.)
In an effort to pick up some e.t., last year, he installed a professionally-built windage tray on his 550+hp motor.
The windage tray was built by a respected Ford engine builder who has a nationwide reputation for getting it right.
My frriend's car slowed down a tenth and a half with the tray installed! He does his test and tune at the same drag strip for repeatability, and since he couldn't believe the results, he went back the next week to verify the slower elapsed times in testing.
Same result.
The next week, he returned (virtually the same weather conditions) with the tray removed and picked up the .15-seconds he'd lost with that windage tray installed.
I have an M-P windage tray on my supercharged 360 Magnum; I wonder if it's helping me or hurting me???
Just sayin'...