Jmo

HAHA.. nice

Good idea. I am only at 220*-225* on the freeway, and am often over 250*-260* within a mile or two of spirited driving. I am having mine (oil cooler) put on Sept 20 when they replace the short block.

The Genesis coupe needs an oil cooler if you are going to track it hard. The oil temps easily climb towards 300 degrees, the main difference ... the car has no oil temp programmed limp mode - neither did the 350Z where oil temps could also hit 300 degrees on the HR engines.

:iagree: If you put a oil temp gauge and a programmed limp mode of 280* then hit the track most to all cars would go into limp mode like the 370.

so basically all cars overheat the oil, but nissan is the only one that bothered to protect the engine and put the limp mode there? that definitely doesn't reflect too good on the other car companies

Not after a couple laps...

A stock s2000 will chill below 240 or so after a day on the track.

Yeah... the Z gets hot really quick. The factory cooling just sucks for high performance applications.

what are your thoughts on how the mustang and 370 compare?

I'll send you a PM in a minute. Don't want to derail Pharmacists thread.

Nope, modern cars are designed to run hotter as oil has improved (especially with synthetic). Oil are at their most efficient point around 200-240F, this is why most cars have operating temperature in that range. Also what is causing the heat, RPMs!!!! I can see a 5-10 degree drop in temperature simply by shifting 700 RPM earlier than normal. Unless you are tracking the car or drive in heavy traffic or in hot weather, I honestly wouldn't worry about it as long as you have high quality oil in the motor and change it when you need it.

You don't hear about problems on other cars because they don't have a gauge.....

what about the lack of air flow? Car and driver tested the brakes on several cars. Our cars failed hard. They said it was because of a lack of air flow to the brakes. Does that have any correlation with the oil temps?

Airflow has nothing to do with it, there is nothing to cool the oil to begin with! Modern oil can tolerate much higher temperature compare to what it used to. As long as the engine is built with the tolerance in mind, it doesn't matter. Most cars cruise at 205-220 now compare to the days of 160-180F. Oil are more efficient in the 200 range and it is better for emission.

The brake issue is overblown. The car has 14" rotors and giant calipers, I am sure it isn't as bad as the 350 on 12.7" single piston caliper. It's the pads! Sure more airflow helps, but most street cars don't have ducts anyway.

Thats a first for you... :stirthepot:

Nissan changed the way it made bearings (dropped lead out of the formulation) and as a result saw a rise bearing failures at sustained temps over 300. 280 was the point they decided was a good place to limit to give themselves a bit of a buffer. I have no idea oif other car companies have done the same thing with their bearings.