According to industry sources ( Valvoline), and Smoky Yunick (Circle Track)
the temp sender should be in the input to the engine, not the output. You
want to know what the temp of the oil going into the bearings is. You
could put a sender in the line from the cooler to the tank ( low pressure
scavenge, usually), in the tank itself, or in the pressure line (oil filter
heads often have a port for a temp sender). I'd say that given your setup,
oil temps of 260 using Redline are probably quite acceptable. Valvoline
recommends temps of 200 - 220 in the sump for their oils.
The oil pressure port should be at the end of the main oil gallery,
farthest away from the input. On my motor (Ford 120E block) I feed the
engine using the gallery port on the front face of the engine opposite the
cam, and read oil pressure from the port on the side of the engine under
the distributor.
Brian
At 07:20 PM 03/20/2000 -0500, you wrote:
>The day-after effects of VARA's Las Vegas event have me pondering a few
>points, one being oil temp. I saw F 260 on the gauge with Redline synthetic
>which seemed quite high during the extremely hard fought race. That was with
>the sensor in the line out of the sump before the filter and before the
>cooler. Which got me thinking
> 1. IS this excessive?
> 2. What is the most effective monitor point, before or after the cooler?
> 3. What's a typical Delta-P for a cooler?
> 4. What's the general or recommended practice for monitoring oil temp?
>Thanking you in advance for the thoughts, Steve
>BTW, I was second in both races with NO chance of getting to the lead.
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