Chris, I'm having trouble understanding why. I know as soon as I hit the enter button to post this, it'll probably come to me. If he's only spinning it to 6k, what else would require so much more oil volume? Is it the wider bearing clearances and wider rod side clearances?
Windage will be a problem with a stock pan, and a crower crank. It will cost you a bunch of HP, and oil airation is a real issue here. You have ponied up for the big dollar parts, I highly recommend that you get Steve's standard depth Alum pan, and notch the crossmember out. This will allow you to get a deeper front on the oil pan, which gives you room for a working full length windage tray, to control the oil, and greatly reduce the windage from the front 4 rods. Also, Superchargers put tremendous heat in the motor, and you really need the alum pan to dissapate that heat. While I am not altogether against a stock pan with baffels for some block girdle builds, you are beyond that now. There is tangable HP and longevity benefits to the money spent for the high capacity alum oil pan. Been there, done that. I have seen 15HP on a 550HP 6000 rpm stock stroke motor, with the installation of a pan with a deeper front, and a full length windage tray. After seeing that on a 464, there is no way I would try a stock pan on a 523. It's money and time well spent. Good luck on the project, sounds fun! JW
OK, you all have convinced me. Now I need to find this Steve fellow and send him a check. Everybody, thanks for weighing in. By the way, I measured my stock pan, it won't hold as much as I had hoped. But it does hold more, clear of the crank (important words), than w/out a girdle! Ben
"Steve" is the guy in post #4 in your thread here......Phone number and all. He is a fantastic guy to deal with!
Some info from my test measurements below. All measurements taken with a level pan. Stock pan with crossover notch holds 4 quarts to the level of the front shallow section. This level is equivalent to the stock dipstick, about halfway between the two marks, and of course would give adequate crank clearance. No surprises here, 4 + 1 for the filter = 5 quarts for a stock motor. Add a girdle, and the stock pan will hold 6 quarts to the same level on the dipstick. If running a stroker, you subtract an equivalent level to half the stroke increase to clear the additional swing. To achieve equivalent crank clearance to a stock configuration with the 4.4" stroke, it would be 5.5 quarts in the pan. This would allow plenty of room for an appropriately placed windage tray. For my configuration, I would have totalled 6.5 (one quart for the filter/motor). I went for the deeper sump from Steve regardless, just thought you all might find some of these measurements interesting / useful. Ben
Ben, I think you will find with the engine in the car it is tilted towards the back and it will be closer to 6 qts. This pass friday a buddy took his engine to the dyno and they played with the oil level, they started with 6.5 qts and they pulled .5 of a qt out and saw a 20 hp gain without any other changes. Something to think about, the rod/rod bolts hang down lower then the crank it self. Is it the dip stick tube that is a problem on your stroker? If I recall all I had to do was shorten the tube to use the stock dip stick. You will love the pan from Steve, it is a work of art. Will you take this engine to the dyno? Chris
Yup, a tilt will change the numbers a bit. Interesting info on the 20 hp gain, what was his girlde & pan configuration? Looked to me like the dipstick itself will hit the crank lobes. I measured the rod bolt swing, very close to the lobe on the big Crower. The crower throws are enormous. They are both about at the top of the extended studs used to hold the mains & girdle on, which is about 2 7/8" from the pan mounting surface. Not sure about taking it to the dyno. I've taken one other motor I built for tuning purposes, it was very useful & fun. But expensive. You guys talked me into buying a fancy pan, I have no money left! Ben
