Purpose of a larger oil filter
#3
More filtering capacity, more flow, better filtering and a longer filter life. Same thing as getting a deeper tranny pan. Overall it helps your engine out, as a deeper tranny pan helps your tanny out.
So comparing a bigger filter to racing strips/exaust tips is foolish.
#4
The important thing to keep in mind with this type of change is that an oil filter has a bypass valve. The size filter that comes on our engines all have the same bypass valve specifications. If you switch to a larger filter, it is going to have a valve specification for whatever engine it was designed for, not our engine. So if you go with a larger filter, you have to make sure the bypass valve pressure specifications is the same as the filter that is designed for our engines. If it is not, you could actually do a lot of damage to your engine. The bypass valve is designed to open in the event the filter has become clogged or damaged. It allows oil to bypass the filter and return to the engine. The valve is controlled by a spring that opens under a certain amount of pressure. The larger filter you buy might be designed for an engine with much different pressure specification. So using it on our engines could result in one of two things happening:
1) If the valve is a low pressure valve, it might be open all the time when it is installed on our engines, which means your oil is just returning back to the engine without ever being filtered at all. This defeats the purpose of even having a filter at all, and is very bad for your engine over time.
2) If the valve is a high pressure valve, it might not open at all when needed because our system might not provide enough pressure to even open it. This would be really bad if the filter becomes clogged. The bypass valve not opening means your engine will starve for oil, and will pretty much destroy itself in short order.
This is why I only use the filter size that was designed for my engine or that meets the exact specifications for my engine.
Last edited by Silver_Dodge; 01-18-2010 at 05:27 AM.
#5
#7
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#8
How an oil filter works.
http://www.secondchancegarage.com/public/297.cfm
Silver's explanation is good.
http://www.secondchancegarage.com/public/297.cfm
Silver's explanation is good.
#10