Use CSF Radiator's Internal Radiator for ATs for Oil Cooler?

Jordo!

According to a few engine building books I've read through, 175* oil will tend to net a few extra whp on an engine dyno, so the 180* cut off for maximum power is probably bang on.

It's just tough to maintain EXACTLY 180* it seems. A lot of the guys running air cooled oil coolers have to use block off plates in the winter to get the oil up to the 180* region, and they tend to see the oil take longer to get up to temp the rest of the year.

I think the best set up for a DD would be a water cooled 200*F tstat oil cooler. I think a big air cooled one is over kill on a DD.

I've been just adding metal fins to my oil pan (the Arc "cool fins") and they work remarkably well. I never see over 225* F beating on it in the summer, and cool down time is fast. Typical driving temps (which are always a little "spirited") I see around 185* - 208*.

As to the thermostat on the older 'vettes, that was probably set for dino oil ideals.

Modern synthetics can really hold together as high as 280*- 300*+ before catastrophic engine failure is a serious risk (or so I've read), but Nissan is wise to shut down the engine well before it ever gets anywhere near that.

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