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- Dec 24, 2024
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- 69
I've been racking my brain researching and I'm going in circles. For a 4 cylinder turbo high reving street engine which filter are you guys choosing? I run GP1 oil if that matters at all...Oil change is between 3-5k.
Which filter for high HP and high RPM street engine?
- Thread starter Stopsign32v
- Start date
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- May 28, 2014
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Microguard
edyvw
$50 site donor 2026
What is the engine?
Stock oil pump? The amount of HP doesn't matter, it's about how much max flow the pump puts out near redline. Any known brand name filter like the mentioned MicroGard (get the Select, 10K model) or the Carquest Premium or Carquest EP would work well and have very good efficiency. If you don't care about efficiency, then go with something like the WIX XP, Purolator BOSS or the Purolator 20K (gold can, and Walmart only). The new Mobil 1 at Walmart would be good too, and in the middle of the efficiency range of off the shelf filters.
- Joined
- Dec 24, 2024
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80psi of oil pressure
When you say efficiency are you talking about flow or filtration?
You can't tell what the pump's oil flow volume is by oil pressure. If this engine has a stock oil pump, then pretty much any filter will be fine. It all comes down to how efficiency you want the filter to be and how much you want to spend on it.
Filtration efficiency. You have to look a the "dP vs flow" for flow performance if interested in how a filter flows. Pretty much any oil filter will flow well enough for a stock engine like that.
Why does high revving and turbo matter for oil filter selection?
If I'm running something like a Civic Type R, I'm choosing the exact same filter I would for any other Honda-- a Pentius or PGI filter that's 20-25 micron at 99% or better.
Flow is not a filter spec. Filter's don't flow. Filters have essentially no effect on the oil system's flow. Thinking of a filter in terms of flow is akin to think of a resistor in terms of amperage rather than Voltage or Resistance in Ohms. Just as it's correct to think of resistors in terms of "voltage drop" across a known resistance, a filter has a "pressure drop" value (restriction or "Delta P" in engineering parlance). But this delta P doesn't produce a flow change.
It's more correct to think in terms of lower restriction or higher restriction, not lower or higher flow. This is because the flow rate through the filter doesn't change when there's a positive displacement pump immediately upstream.
Anyone still not grasping this needs to go re-read @ZeeOSix thread on "the myth of flow over efficiency."
What is the original oil filter number? Some filter numbers have different “better” brands and lines. Not all filters are created equal, even from the same manufacturer.
Out off countless high hp street or track cars that I look what oil filter they are using are Mobil 1 oil filter and Wix and ac Delco and motor craft . Mostly 99% are always regular wix.