Dry Sump Oil Temp - I can't get it up !!

I've got my street project basically completed now (Nissan VQ37 in E46 BMW) which has a 4 stage Ed Pink dry sump pump, 2gal Peterson tank mounted in the engine bay and a Greddy thermostatic filter plate setup without a cooler at present (just has a hose maybe 300mm long as a bypass).

I just don't seem to be able to get the oil temp up past about 65 - 70 degrees celsius when driving !! If I leave it idling it might get a bit past 80 and I think the most i have ever seen was about 85.

I'm measuring the temperature at the bottom of the tank near the outlet to the pump so this is the temp going into the engine.

Have people struck this before and are there any common remedies ? I might try and insulate the tank but just so naff on a new build :P

We control the temp on race cars by blocking the airflow to the oil cooler (s).

No oil cooler present at the moment unfortunately :/ Just a 300mm loop of hose where it would go on the filter block.

Not that much you can do, the greater mass of oil will take longer to heat up, and the surfaces of the pipework, hoses, and tank are all going to be cooling the oil. The actual temperature entering the engine may be a little lower than the tank temp.

You could try covering the plumbing and tank with a heat barrier material, as they should reduce the losses.

There are heating pads available, or you may be able to fab' a way for a heater in the tank, but those are a bit extreme.

Are you sure the temperature sensor is reading correctly? Can you verify using an IR temp gun on the tank, or a probe-type sensor into the oil? If the temp sensor were a one-wire type, counting on the ground, you may have a problem with the anodized aluminum tank. I would use one with an independent ground.