High Volume Oil Pump with Holley 302-2?
06-02-2024, 09:49 AM
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High Volume Oil Pump with Holley 302-2? I'm rebuilding my 5.3 for a boosted application so I've considered running a high volume oil pump.
I've just only been reading some that the high volume oil pumps have a tendancy to starve the pans of oil before the oil can return to the pans.
I'm especially concerened because I'm using the lower profile Holley 302-2 pan in my Chevy Nova.
Anyone have experiance with this pan and a high volume pump? Did it really starve the motor of oil?
I've just only been reading some that the high volume oil pumps have a tendancy to starve the pans of oil before the oil can return to the pans.
I'm especially concerened because I'm using the lower profile Holley 302-2 pan in my Chevy Nova.
Anyone have experiance with this pan and a high volume pump? Did it really starve the motor of oil?
06-02-2024, 10:52 AM
#2
If you're building the engine for boost, with greater clearances than stock, then the high volume pump is what you want. Bearing clearance causes a controlled leak within the engine, and with tight factory clearances, the oil can't flow past through the bearings as readily. A high volume pump on a stock engine could suck the pan dry. However, opening up clearances means the controlled leak will be greater, meaning oil returns to the pan faster. I just installed a Melling 10296 pump in the 5.3 I built for boost, with .0027-.0030 on the mains and .0022-.0025 on the rods. I'm not concerned with the pump sucking the pan dry, and I have an F-body pan. I think you'll be fine, IF you're building greater bearing clearances into the bottom end.
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06-02-2024, 07:50 PM
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