Quote:
Originally Posted by Red
The 4.0 doesn't spin high enough for a scraper to be any help. Plus the main brace girdle more or less does the same thing. Not sure if yours had that or that was part of the 00-02 updates
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See the comments on the straight six Mercedes diesel. The AMC straight six is an old design. Similar basic block architecture as the Mopar slant six.
It is worth noting that Toyota and BMW completely re-engineered their straight four and straight six blocks to include much greater windage control.
A lot of people think that because their engines do not have a particular part in them it is because the part does not do anything. With OEMs it is usually a case of dollars.
Here is a good example:
The 1995 Dodge Neon 2.0 had an OEM windage tray AND crank scraper designed for it. At the last minute, the windage tray was removed and placed in the performance catalog but the crank scraper was retained. The following year, the crank scraper was removed. Jumping back about 30-35 years, Chrysler engineered a windage tray with crank scraper louvers for the slant six. It was left out of the production engines but was included in the aftermarket performance catalog.