OEM Thin Bearings in an All Motor Drag Engine:
I thought I would share this information instead of keeping it to myself to show that with the proper tuning and proper engine building the K20a bearings work fine in race applications. These pictures are from the tear down of my 310whp 10.93 comp4 car.

This k24 engine has 1 race from last year on it which we went to the semi's, 1 misshift to over 11,500(my fault last year), 80 plus dyno passes, 4 events from this year which we went to the finals each event and ran all of the qualifying which is at least 5-6 full passes per event. We shift this car between 10,300rpm-10,500rpm and have shifted it as high as 10,800rpm. It has a stock OEM K20a2 oil pump unmodified(no stiffer spring or s2000 parts). It is a 100% stock k24 99mm crankshaft with a rod ratio in the 1.5's. The bearings are OEM honda k20a bearings. The pistons weigh over 330g and the rods weigh about 500g.

This motor is apart to re-ring and re-bearing it. It did not have any failure. So if someone every says that you can not use the k20a bearings because they are too thin and they will spin you should think twice about what they really know because here is solid proof that is untrue.