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Yea, the oil pressure did seem a bit high. Before the track day Friday, I changed the oil to some Mobil-1 15w50 I had here. At startup, oil pressure is about 3 kgcm (42psi), and peak oil pressure at redline is 7.0 kgcm (99.56psi). That is pretty high. Peak oil temperature during a 20 mins...

Given the testing and lab knowledge of the people here, I thought I would ask. Anyone know of a place you can mail gas samples for octance analysis? I searched a bit on the internet and didn't turn anything up. The equipment to do the testing is a bit expensive, especially if you can do both RON...

Those numbers were with Mobil-1 10w30. Interesting that the Canadian guys use the Motul. I've seen it around a few places, but never given it a try. The Redline sounds like a good alternative given the engine load. I'm also in progress of making a real oil cooler which should help out some....

Interesting... I too thought these were lower temperatures. I am measuring the temperature at the oil filter with a sandwich adapter, and an electronic DEFI oil temp and oil pressure gauge. This location is right after the oil/coolant cooler, so that might explain the lower temperatures. I may...

Sorry for not getting back sooner guys! Was out of town. It does seem like those are decent oil temps, but then again, those are from runs in the fall with outside temperatures pretty low. The stock WRX has an oil-water cooler, but it really doesn't do too much cooling. I imagine on hotter...

The turbo is a hybrid Garrett turbo, with a ball bearing center. Water cooled of course. Like you said, the biggest concern is local hot spots. During a race, the turbo is glow-red hot, so I can imagine the local temperatures in the bearing core are pretty high. If I were to run a regular...

I've been reading thru older posts on this board, looking for information about use of 50+ weight oils in racing application. As you can imagine, there is an abundance of posts that cover alot of the details, but getting a good summary is often difficult. Here is my situation, and I would love...