crank scraper and windage tray the same?

[Mr Overkill]

if i get a crank scraper will i still need a windage tray


dont know if u need both or one or another is fine


thanks

[Kevin Johnson]

Quote:

Originally Posted by Mr Overkill if i get a crank scraper will i still need a windage tray dont know if u need both or one or another is fine thanks

My recommendation is that you should run both if at all possible. They are technically distinct and serve different functions.

http://www.crank-scrapers.com/index.html

Quote:

Is a windage tray the same as a crank scraper? No, a windage tray serves a different but related basic function. It is present to act as a physical barrier between the rotating assembly and the sump reservoir. A crank scraper actively removes excess oil and returns it to the sump. Some windage trays do have scraper technology built into them but even then a scraper will approach the moving parts much more closely. [Above in website]: Honda B-series engine showing an installed Teflon scraper on the left and the factory windage tray covering the entire assembly on the right. The windage tray shields the rotating assembly from splashing sump oil while the scraper actively removes excess oil. Before 6000 RPM the standard steel version of this scraper returned a 1.5 % to 2 % hp gain and from 6000-8900 RPM the hp gains averaged 2.5 %. Remember that this was on a statically mounted engine already having a full windage tray as with the Suzuki G10 mentioned below. -snip- A windage cloud will still form on a statically mounted engine with a full windage tray. For example, roller dyno testing of a scraper in the Suzuki 993 cc three-cylinder G10 engine with a full windage tray still showed an average 3 % hp increase (over four pulls data ranged from 2.4 % to 3.5 %). Power began growing at about 2750 rpm and peaked at 5300 rpm (the maximum for that economy cam). [Here are the dyno charts -- see website]. In a moving car the oil would be sloshing around and making at least partial contact with the rotating assembly creating larger windage losses -- consequently the gains would be greater when using a scraper.

[Mr Overkill]

hehe i was looking at your crank scraper funny that u should post

[Kevin Johnson]

Quote:

Originally Posted by Mr Overkill hehe i was looking at your crank scraper funny that u should post

Boy, you're brave. But I saw you reading the "other" thread last night after you posted. Still time to come to your senses, right?