351 Windage Tray
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Junior User
Joined: Feb 2004
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351 Windage Tray
I am building a new motor for my truck and am thinking about adding a windage tray. Truck is used for towing and does see 3000 RPM or more quite often. Not sure how much HP this will give me, but seems like a worthwhile oiling improvement. Anybody here installed one with a rear sump stock pan? If so which one did you use.
Elder User
Joined: Apr 2004
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From: Ocala, Florida
I don't think a windage tray or a crank scraper will help at the rpm's that your engine will see. I think it will be a waste of your money and that you may be better off spending money on a different modification.
Elder User
Joined: Apr 2003
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a windage tray is a piece of tin that bolts to the main bearings and separates the oil in the pan from the spinning crankshaft, it has strategically placed cutouts for the oil pump and to drain oil into the pan, some incorporate a scraper which fits but doesn't touch the counterweights on the crank and further pulls the oil off the crank, the oil pulled up from the pan by the crank at high engine rpms actually takes horsepower to move on and around the crank.
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Joined: Apr 2004
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From: Ocala, Florida
I would stick with the stock volume pump. You don't need a high volume pump. The stock volume pump will probably do a better job of helping the engine running cooler by allowing the oil to stay in places longer so it can pull frictional heat away from metal surfaces. Thus prolonging engine life. You are not pushing the engine very hard at 3000 rpm's. A high volume pump will pump oil in between everything like it is suposed to, but will not let the oil to stay long enough to act as a more efficient heat sink.
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Thanks for the input, reason for the high volume pump is this truck pulls 7000# and is supercharged with about a 150 hp increase so more stress on bottom end. Most towing trips see quite abit of hills with alot of 4000-4500 rpm under load. Truck runs 4:10 gears. As far as running cooler, am not sure about that, a hi volume pump will only pump what can get past the bearings anyway, unused volume gets dissipated by the pump and does cost a few hp. A stronger pump drive is a good idea too, have seen those fail on stock ford pumps. I do have an oil cooler on this truck and have a bit more plumbing to keep full. Also on alot of rebuilds the lifter bores tend to be a little looser as most people do not bush them ,and you can loose oil volume there. I just feel that for anything more then a stone stock engine a HV pump is just cheap insurance, it assures you will have enough oil at the bearings at high rpms at the price of some extra hp to drive when you don't need it.