oil filter microns

[The Radium King]

sure, i've no problem changing the filter every 1000 miles as recommended by lne (doesn't require a complete oil change). my concern would be pressure drop due to the small filter and small micron size, even when new and clean or, more likely, having the filter in constant bypass because of the pressure drop across it.

[Oldcarguy]

Just wanted to note for those new to the spin-on oil filter mod that while the NAPA 1042 does have an anti-drainback valve, it does not have a bypass valve. Not sure about the 1081.

In conjunction with two filter mags I never run a 1042 for more than 3,000 street miles and change it before any track event due to the lack of a bypass valve.

[itsnotanova]

Most spec guys I know have taken the accusump out of their car. Daytona is the only track that guys seem to think it helps at. I regret putting one in my boxster as it's unreliable and just dead weight. I say save your $$ and get proper baffling for the pan.

[steved0x]

Originally Posted by itsnotanova

Most spec guys I know have taken the accusump out of their car. Daytona is the only track that guys seem to think it helps at. I regret putting one in my boxster as it's unreliable and just dead weight. I say save your $$ and get proper baffling for the pan.

Same down here too on the SE, I know several that have removed the accusump. I'm not sure if I agree with it, since AZ986S videos and data seem to show to clearly show it helping.

In my case (2000 Boxster S with LN 2 QT Deep sump) what really seems to make the most difference (on top of this) is oil temperature. If I can keep it down around 200-205'ish F then the pressure fluctuations are greatly minimized, vs when the oil gets closer to 240F (as measured in the left hand valve cover).

A few weeks ago at Roebling when it was nice and cool outside, my oil pressure was solid, I'll see if I can get a video comparing when the oil is hotter.