| 07-11-2026, 08:24 PM | #1 |
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Glendora Mountain Road (GMR) Pictures
I thought I'd share some pictures from my little canyon drive today here.
I'll keep it short and sweet. My car did absolutely fantastic with the added RC F LCA front bushings and wider PS4S tires. However, here's the bad... This car gets way too hot when driven hard in hot weather. I didn't take a picture of my oil temperature, but I was super glad I was paying attention to it. I was in 3rd gear going about 40mph up Mt. Baldy Road before the cutoff to GMR. As I hit GMR, it is an uphill blast. I looked down at my oil temperature, and it really started to spike upwards. Sufficient to say I then laid off of it for a few minutes and it went back down. However, when I got back on it again, I could only do about 30 seconds to 1 minute blasts in 2nd gear before the oil temp spiked again. I obviously knew these were not track ready vehicles, but I was honestly shocked at how the oil temp was spiking under hard driving. This car definitely needs aftermarket cooling if it is going to be tracked.
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| 07-11-2026, 11:15 PM | #2 | |
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> Some S65 noise along the way...
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| 07-12-2026, 11:30 AM | #3 |
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And every one of those beautiful BMWs have much better cooling systems too! Thanks for sharing! Am I allowed to join for one of these or is it no Lexus allowed?
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| 07-12-2026, 12:51 PM | #4 | |
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![]() Jus know, most all cars are AM upgraded/modified [ie tuned, suspension, brakes, etc] Although we don't "race", cyn drives are quite spirited at times as seen in vid ![]() > One thread to monitor SoCal 'LA/OC' drive eventsRegarding 'cooling' topic, definitely an issue on SoCal hot day cyn runs with many vehicles. Upgraded my M3 with do88 coolers [rad, oil, PS] for heat issues sometimes present w/ e92 M3s.
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BPM Stage II; SuperSprint: header-back, catless, nonresonated, F1s; Infinity Design CF intake; Partee Racing CF plenum; do88 coolers; Bilstein B16 kit w/EDC, monoball links; Brembo BBK; AutoSolutions SSK Last edited by smokinjoe64; 07-12-2026 at 01:01 PM.. |
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| 07-12-2026, 01:40 PM | #5 | |
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Sufficient to say, back in February when the weather was a lot cooler, I tore up Azusa Canyon and encountered 0 oil temp issues. The IS 500 engine bay is not very good at dispensing heat because it is crammed in there.
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| 07-27-2026, 12:00 PM | #6 |
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Yeah, cooling is one of the most overlooked aspects of performance cars when on track or twisty roads. Highway pulls and such are much easier on the engine.
I had some back luck at GMR last time with a flat tire, but I really love that road and love driving it. Have you done ACH? Not as technical, much faster, and the road conditions are slightly better.
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![]() 2025 G87 ///M2 LCI - Ohlins R&T, Millway Uniball Camber Plates, SPL Adjustable Tie Rods, Endless ME20 Track Pads, Milltek Single Midpipe, Turner CF High-Rise spoiler, Turner Motorsports Front Splitter, Apex ML-10RT 19x11 Previous: 2022 G82 M4 Comp X-Drive • 2018 F80 M3 CS • 2016 F80 M3 |
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| 07-27-2026, 12:21 PM | #7 | |
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Garage List 2025 BMW M2 [9.75]
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![]() 2025 G87 ///M2 LCI - Ohlins R&T, Millway Uniball Camber Plates, SPL Adjustable Tie Rods, Endless ME20 Track Pads, Milltek Single Midpipe, Turner CF High-Rise spoiler, Turner Motorsports Front Splitter, Apex ML-10RT 19x11 Previous: 2022 G82 M4 Comp X-Drive • 2018 F80 M3 CS • 2016 F80 M3 |
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| 07-27-2026, 01:38 PM | #8 |
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Hmmm interesting...never previously considered 🤔
> Very cool clip...what day of wk, approximate timeframe/duration?
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| 07-27-2026, 01:45 PM | #9 | |
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| 07-27-2026, 01:47 PM | #10 |
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Nice driving! Good job!
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| 07-27-2026, 02:09 PM | #11 |
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jmg I'm down for it...
Reposted to regional LA/OC Cyn Run thread for broader exposure and potentially set-up a run in Aug. Thx & great idea
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| 07-30-2026, 01:40 PM | #12 | |
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