Accusump install

[steved0x]

Very nice install! I have the VDO Oil gauge and have had the warning light flicker once at idle after coming off a hot track session. I have actually gone to 10W50 and the oil.pressure seems to be a little better when hot vs 5W40.

[AZ986S]

Originally Posted by steved0x

Very nice install! I have the VDO Oil gauge and have had the warning light flicker once at idle after coming off a hot track session. I have actually gone to 10W50 and the oil.pressure seems to be a little better when hot vs 5W40.

Did you replace your original oil pressure sender switch with the dual 7 psi warning contact / sender unit from VDO? Did you install the larger bezel on the gauges or is your install flush mounted? What oil are you using now? I was thinking of trying the Mobil 1 5w50 if I still see low low idle pressure.

[steved0x]

Originally Posted by AZ986S

Did you replace your original oil pressure sender switch with the dual 7 psi warning contact / sender unit from VDO? Did you install the larger bezel on the gauges or is your install flush mounted? What oil are you using now? I was thinking of trying the Mobil 1 5w50 if I still see low low idle pressure.

Yeah, my original oil pressure switch was replaced with the VDO brand dual oil pressure sensor/low pressure switch.

My VDO gauges are the VDO Vision black, they are not flush mount but the bezel is very unobtrusive and only sticks out a little in front and only overhangs the hole a little bit. I don't think yours looks bad, I do see where the bezel is protruding, but I think it still looks good

I am on Millers Nano 10W50 (previously Millers Nano 5W40) but I have heard nothing but good about the Mobil 1 5W50.

[AZ986S]

Concerning the new oil pressure relief valve install, DIY articles suggest a loss of 0.25-0.5 qt of oil after removing the bolt, so I was prepared with a catch pan. This only applies to unmodified oiling systems, as I learned...

When I removed the bolt, well over 3 quarts of oil came out and kept on going before I put the bolt back in. I believe this was because I have an Accusump and a remote oil filter, but can anybody explain this!!! How could this happen if the full flow oil filter still has an anti drainback valve? Or is there something else I am missing?

[AZ986S]

OK, here's an update on my low oil pressure issues.

As mentioned previously, I've installed a 2 qt Accusump with a remote oil filter with a 1042 Napa Gold filter. I Also installed VDO oil temp and oil pressure gauges replacing the original oil pressure switch with the dual switch/sender unit from VDO. I then originally filled with Total Quartz 5w40 oil which I had been using for the last year without issues before the accusump install (no low oil pressure, at least no warning light). When the oil temp gets hotter than 200F, it will set the low oil pressure warning light (7 psi or less) at idle.

In a quest to fix the low oil pressure, I upgraded the pressure relief valve as mentioned in this thread, with no difference in the oil pressure. I then filled with Motul 8100 xcess 5w40 oil. This weekend I went to a DE event at INDE Motorsport Ranch in AZ, and, while reviewing the video footage, noticed that the accusump dumping light I installed on my dash was coming ON on hard right turns, and also less on left turns. What I didn't like is that occasionally, the low oil pressure warning light would come ON (maybe a flicker but sometimes 1-2 seconds) on those prolonged (6-7 seconds) right hand turns!!!! I din't notice it at the track (focused on driving).

So now, I'm freaking out. Today I went ahead and filled with Mobil 1 5w50 (on sale at NAPA), at the recommendation of my indie mechanic and driving instructor. I'm still seeing the low oil pressure warning light when the oil is up to temp, but barely...

What the heck is going on? Could the oil pump itself be worn out?
At startup, I do get up to 60 psi cold, but then it quickly goes down as the oil heats up. Could the filter be creating too much oil pressure drop? (accusump is AFTER the oil filter, and there is a check valve to prevent backflow). I'm thinking that the oil pump does not have enough pressure/flow to refill the Accusump and that is why I'm seeing the low pressure light at the track. This should not happen with an Accusump!

JFP in PA, any ideas? Can these pumps wear? Do I need a coarser filter like the LNE washable one? Or are my bearings worn out? Engine has 81,000 miles and runs great!

Thanks

BTW it was a blast at INDE, as I'll post some video. Oil temp did not get above 235F. And BTW I'm on street tires (R-S3s).

[JFP in PA]

Originally Posted by AZ986S

OK, here's an update on my low oil pressure issues.

As mentioned previously, I've installed a 2 qt Accusump with a remote oil filter with a 1042 Napa Gold filter. I Also installed VDO oil temp and oil pressure gauges replacing the original oil pressure switch with the dual switch/sender unit from VDO. I then originally filled with Total Quartz 5w40 oil which I had been using for the last year without issues before the accusump install (no low oil pressure, at least no warning light). When the oil temp gets hotter than 200F, it will set the low oil pressure warning light (7 psi or less) at idle.

In a quest to fix the low oil pressure, I upgraded the pressure relief valve as mentioned in this thread, with no difference in the oil pressure. I then filled with Motul 8100 xcess 5w40 oil. This weekend I went to a DE event at INDE Motorsport Ranch in AZ, and, while reviewing the video footage, noticed that the accusump dumping light I installed on my dash was coming ON on hard right turns, and also less on left turns. What I didn't like is that occasionally, the low oil pressure warning light would come ON (maybe a flicker but sometimes 1-2 seconds) on those prolonged (6-7 seconds) right hand turns!!!! I din't notice it at the track (focused on driving).

So now, I'm freaking out. Today I went ahead and filled with Mobil 1 5w50 (on sale at NAPA), at the recommendation of my indie mechanic and driving instructor. I'm still seeing the low oil pressure warning light when the oil is up to temp, but barely...

What the heck is going on? Could the oil pump itself be worn out?
At startup, I do get up to 60 psi cold, but then it quickly goes down as the oil heats up. Could the filter be creating too much oil pressure drop? (accusump is AFTER the oil filter, and there is a check valve to prevent backflow). I'm thinking that the oil pump does not have enough pressure/flow to refill the Accusump and that is why I'm seeing the low pressure light at the track. This should not happen with an Accusump!

JFP in PA, any ideas? Can these pumps wear? Do I need a coarser filter like the LNE washable one? Or are my bearings worn out? Engine has 81,000 miles and runs great!

Thanks

BTW it was a blast at INDE, as I'll post some video. Oil temp did not get above 235F. And BTW I'm on street tires (R-S3s).

We have seen the oil pumps go bad, usually from accumulated debris in the oil. The oil pump drives are also known to fail, but those usually just snap leaving you without any oil. The is also a pressure regulator system in the pump that consists of a piston and spring which can fail, lowering the oil pressure. This is the easiest thing to check as you can remove it through an external plug, and there is an updated replacement set up specifically to improve low RPM oil pressure. As the updated components sell for around $20, I'd start there. If that doesn't work, pull the pump casset and check the pump for wear.

[AZ986S]

Originally Posted by JFP in PA

We have seen the oil pumps go bad, usually from accumulated debris in the oil. The oil pump drives are also known to fail, but those usually just snap leaving you without any oil. The is also a pressure regulator system in the pump that consists of a piston and spring which can fail, lowering the oil pressure. This is the easiest thing to check as you can remove it through an external plug, and there is an updated replacement set up specifically to improve low RPM oil pressure. As the updated components sell for around $20, I'd start there. If that doesn't work, pull the pump casset and check the pump for wear.

I did just update the relief valve with the following parts:

Piston 99710712501
Spring 99610712753
Gasket 99610712350

Is the Low RPM kit different than this?