Originally Posted by Tru-Craft
What are the Nascar boys using before the race?
An oil heater?
Outside oil pump?
Jeff, what drives the oil pump on your race car?
Wrench459, I agree this site does have a wide range of knowledge and clever people.
Have learned alot.
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For most top-level racecars, they all use dry-sumps. Starting procedure (if the engine has sat around not running for some time or it's moderately cold outside) is typically to plug in the
dry sump tank heater (basically a hot water heater element). After 30-40 minutes, the oil temp is 60 degrees above ambient. Then they disconnect the dry sump belt, and spin the dry sump pump with a cordless impact gun to prime the system. Then refit the belt, and fire the engine. At this point the oil is basically up to temp and nothing in the engine got spun over 'dry', therefore wear is at a minimum.
Bob