Well, I got my differential pressure gauges installed. Works fine. Instead of buying a single gauge, I just hooked up two Isspro stepper type pressure gauges with senders on either side of the filter using a Pareto base. As you can see by the pics, I am using all the ports on the base now. The picture shows the side of the base that faces the block and,yes, the hold-down bolt is in the wrong place in this photo. Here's a breakdown of where the ports go.
1) Filter Out: This is the only port on the base that reads the pressure on the clean side of the filter.
2) Sample port for oil samples.
3) Filter in: This sender reads the pressure at the inlet of the filter, just downstream of the oil pump.
4) This just shows you how the inlet ports are plumbed into the base.
5) This goes off to a Racor 3um bypass filter.
So, what was the diff pressure? It ranged from 4-6 psi on a Purolator P1 # PL24641 and MC 10W30 HDEO, both with about 12K miles on them. These are just preliminary numbers from one outing. I'll observer further and soon will datalog a cold start with a run to stabilized oil temp. Bear in mind, 7K of those 12K were with a bypass filter installed, which lessens the contaminant load on the primary filter. The list bypass pressure for this P1 is 8-16 psi and my biggest curiosity is whether the filter will bypass on cold starts.
The higher part of the range, 5-6 psi, is with cold oil at about 70-80F @ 2000 rpm and the lower numbers are from an oil temp around 150F. In this test, on a cool 44F day, the oil temp only reached 165F on a 15 mile test drive but I didn't see any changes in DP once the oil was a bit over 120F. I'll keep you posted.
Here is the Pareto base with the ports numbered. Don't ask for an installed shot becase it's so tight in there at the filter to be practically worthless visually. This is the Pareto Point MagDog base, which contains magnets to remove ferrous metals. I can't speak too highly of the quality of this piece. It ain't cheap but in this case it was worth the money to me. Normally, this base is paired with Pareto's parallel flow bypass filter which uses an Amsoil synthetic filter (I can't recall the micron rating). Here Pareto is the Pareto link, though in checking it today, it says "closed" for some reason. I hope that's not an indicator of any trouble there.
Here are the two gauges with the oil at 153 (see top left numbers on Gryphon programmer which is set to read oil temp). The top gauge is the pressure before the filter and the lower one (reads the pressure after the filter. I'm holding the engine at 2080 rpm here and in case you can't read the gauges well, the top one (inlet) is reading 70 psi and the lower (outlet) is reading 66 psi making the differential pressure 4 psi.
1) Filter Out: This is the only port on the base that reads the pressure on the clean side of the filter.
2) Sample port for oil samples.
3) Filter in: This sender reads the pressure at the inlet of the filter, just downstream of the oil pump.
4) This just shows you how the inlet ports are plumbed into the base.
5) This goes off to a Racor 3um bypass filter.
So, what was the diff pressure? It ranged from 4-6 psi on a Purolator P1 # PL24641 and MC 10W30 HDEO, both with about 12K miles on them. These are just preliminary numbers from one outing. I'll observer further and soon will datalog a cold start with a run to stabilized oil temp. Bear in mind, 7K of those 12K were with a bypass filter installed, which lessens the contaminant load on the primary filter. The list bypass pressure for this P1 is 8-16 psi and my biggest curiosity is whether the filter will bypass on cold starts.
The higher part of the range, 5-6 psi, is with cold oil at about 70-80F @ 2000 rpm and the lower numbers are from an oil temp around 150F. In this test, on a cool 44F day, the oil temp only reached 165F on a 15 mile test drive but I didn't see any changes in DP once the oil was a bit over 120F. I'll keep you posted.
Here is the Pareto base with the ports numbered. Don't ask for an installed shot becase it's so tight in there at the filter to be practically worthless visually. This is the Pareto Point MagDog base, which contains magnets to remove ferrous metals. I can't speak too highly of the quality of this piece. It ain't cheap but in this case it was worth the money to me. Normally, this base is paired with Pareto's parallel flow bypass filter which uses an Amsoil synthetic filter (I can't recall the micron rating). Here Pareto is the Pareto link, though in checking it today, it says "closed" for some reason. I hope that's not an indicator of any trouble there.
Here are the two gauges with the oil at 153 (see top left numbers on Gryphon programmer which is set to read oil temp). The top gauge is the pressure before the filter and the lower one (reads the pressure after the filter. I'm holding the engine at 2080 rpm here and in case you can't read the gauges well, the top one (inlet) is reading 70 psi and the lower (outlet) is reading 66 psi making the differential pressure 4 psi.
