Hi guys,
I finally got to do the oil pickup tests with the original 19mm (3/4") pickup Chris from Killer B sent me.
I did the tests on the same day, same oil, same process. I changed the outlet pressure port to the stock switch location because it seemed more consistent than on the crank passage.
Stock:
Killer B 19mm (3/4"):
Modified Killer B 22mm (1"):
And this is the results graph:
As you can see outlet pressures are close but inlet pressures not so much. Killer B's is good for most of the improvement and will probably have even higher inlet pressures when used in a stock engine with tight clearances.
I think Killer B's will be enough for 99% of the people and for those using loose clearances with more flow it's not that hard to cut the 3/4" pipe and weld a 1" pipe in the same location (much easier that what we had to do).
It's hard to know if it's worth it but any positive displacement pump will always perform better with a higher inlet pressure. That's why I would recommend to anyone to get the Killer B pickup which already does a lot in that regard.
Any well fabricated less restrictive (straight 3/4" at least) will work, please don't think I have any particular interest with Killer B, but they were the only ones that had what I was looking for (and top quality) and Chris was kind enough to send me one for testing.
My engine has about 50 hard laps in our local track and a lot of very spirited driving and sliding around, all with clean oil and filters afterwards so I feel confident it will endure whatever comes. Touch on wood
