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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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#29 |
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#30 |
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Another oil question.
Last weekend I ran at VIR. Ambient temps in the 70's. At 200*, I have 12-15psi/1000rpm. When my oil temperature was 220*-230*, my pressure stayed around 10psi/1000 rpm. 230* to 245* the pressure dropped to 6-8psi/1000. When temperatures bumped 250*, I had 40psi at 7000 rpm. I pulled into the paddock after that. I run Mobil 1 10w30. My oil temperature is measured at the spacer below the sandwich plate. Oil pressure is taken at the galley on top of the engine. Next event, I'm thinking of running Motul 5w40. Is there a better choice? |
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#31 | |
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but yeah 55psi at 7k and near 70psi at normal street temps. Based off your data I would be getting myself a oil cooler but I think based off my location and normally only doing 5 Laps before pitting I can just keep the temps under 250F so no need in my situation. If you already have an oil cooler then IDK... YOLO it lol
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Last edited by autoracer86; 10-24-2023 at 07:31 AM. |
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#32 | |
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#33 |
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Yes.
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#34 | |
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How big is the core compared to say the JR racing one ? Also do you have a shroud
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#35 | |
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No shroud. It mounts to the back of the bash bar so it's only a couple of inches behind the grill. |
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#36 |
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I'd look into shrouding the cooler. I dropped temp a bit just by repositioning mine up a couple inches since it was sitting behind the "chin" of the front bumper a bit.
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#37 | |
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I checked that the thermostat closes at 180*. So far, I can't figure out why my oil temps were so high. Last edited by blsfrs; 10-27-2023 at 11:32 AM. Reason: Added picture |
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#38 |
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It can be tricky to get proper airflow. Cross flow between the coolers can actually kill the pressure differential needed to force air through. Might be as simple as walling off the area between the oil cooler and AC condenser. Try some cardboard and tape for science.
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#39 | |
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The temperature problem only manifests on the track. In 2 weeks, I'm going to Summit Point. I'll wall off the open area and see what happens. |
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#40 |
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wait... was that me? haha...
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#41 |
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It'll be helpful to get air guide panels.
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#42 |
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Project Shroud
Fun weekend project. I hope this works. And yes @Ultramaroon, I put the danged foam piece behind the bumper.
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