B110SSS wrote:
Following on from the Australians chaps looking at doing a bulk buying deal on windage trays/ crank scrapers has anyone had any experience with using these and if so what sort of horsepower gains/ operating temperature drops have you experienced if any?
Always difficult to wade through the b.s of so called testamonials that web sites invariably have, however logic would say that they seem to be a great idea to not only enhance power but also longevity/ reliabilty.
Cheers
Dave

B210sleeper wrote:
someone recently posted ( last month or 2 ) about having crank scrapers in production, perhaps in the states though.

i think the primary benefit is the small increase in power by removing excess oil from the crank and getting it back to the pump, so it's not going to do anything magic, and there are other ways to keep the oil pump fed, but it will help hot engines a little.

an oil cooler would probably do more good in the long run.

hotrod88 wrote:
Most of the time the only time you hear of anybody using such scappers in the oil pan is in competion cause there is such small gains , & in competion you need every little bit. when the crankshaft rotates at high RPM's it creates a balloon of oil that the crankshaft has to rotate through, the object is to disturb this balloon , or remove it so the crank doesn't have to rotate through it.

ddgonzal wrote:
They way I heard it was:
- At 6000 rpm, there's no improvement
- At 8000 rpm, it helps
- At 10000 rpm, you need it (and a dry sump)

But you might as well hear from the experts:

Ishihara-Johnson