01-28-2024, 11:26 AM | #23 |
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wouldn't hurt and it's a small cost change
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01-28-2024, 11:48 AM | #24 |
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02-01-2024, 10:17 AM | #25 | |
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02-02-2024, 10:57 AM | #26 | |
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I'm a fan of Motul RBF660 since it's a slightly higher dry boiling point and for a better price. I do a half dozen HPDEs per year and I flush out the fluid in the calipers before every event so wet boiling temperatures aren't a concern. I did that when I used Castrol SRF as well. Endless RF650 is another popular option and I picked up several liters for about $25 per bottle shipped from Japan. Once it's gone, I'll be back to Motul brake fluid as I haven't noticed any differences. RBF660 is a really great option for the price point and RBF600 is even better for some.
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02-02-2024, 11:43 AM | #27 |
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^^^ Same here, I prefer the Motul 660 as well, but next time I will try the 700.
Also, as far as I know, the DOT4 BMW brake fluid is perfectly fine when it is new. With any brake fluid, its life is far more important than other parameters because they all absorb moisture as they heat up. None of them have high enough of a wet boiling point to be effective on track after 6-8 track days. I used to change brake fluids every other event and never had issues with boiling, and I never kept any brake fluid in the car for more than 3 months. Maybe I was overdoing it, but for a $20-25 expense, it is even silly to discuss it IMHO.
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02-02-2024, 03:16 PM | #28 |
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I have been using SRF exclusively in my cars for over 5 years now and have never had a problem with it. I do about 20-25 track days a year and flush and replace about every 3 months. I know it's more expensive but as consumables go it amounts to just a drop in the old bucket. Shall we talk tires and racing brake pads? As a friend once told me "if it's good enough for F-1, it's good enough for me".
As for using generic non high boiling point DOT 4 on a track, I don't think this is a very good idea. I still remember when I first learned what brake fade was, and it was not a pleasant experience. When it comes to brake pedals, give me a high hard one. The cost to replace your stock fluid with a high boiling point one is not that much, and the peace of mind is priceless. As a novice you already have plenty of things on your mind. Why not offload one.
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Last edited by Boomer 2019; 02-03-2024 at 08:12 AM.. |
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02-02-2024, 05:35 PM | #29 | |
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02-03-2024, 08:09 AM | #30 |
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I was referring to using generic DOT 4 as opposed to using a high temp fluid. Fixed it. I know that high temp fluids including SRF are also DOT 4. I don't know where you got the DOT 5 from.
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05-01-2024, 01:18 PM | #31 |
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Taking my 2023 G82 to Roebling this month and I’m as novice as they get so as always I appreciate the community feed on this topic. Cheers
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05-01-2024, 01:58 PM | #32 | |
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You should also use a coach/instructor. Despite having many hours under my belt, each time I visit a new track, I make sure to use an instructor/coach to ensure that I’m not losing time/speed anywhere and know the best and quickest way to enter and exit a corner. I plan on attending Watkins Glen and VIR this year, I’ll definitely be using a coach for at least the first few sessions. Lastly, it’s not a competition and don’t let your ego get in the way or becoming a better driver. It’s okay to be passed by a track spec Miata or a stripped out E36 M3 - don’t crash your car trying to be faster than you’re capable of right now. Leave DSC on, buy track insurance, don’t treat the throttle like an on/off switch, and enjoy yourself. Seat time is more important than anything else, so get into the groove of it first before looking into better tyres/pads/fluids etc. Some people take a while to make that jump into taking track days more seriously, and some take a little while as they enjoy the process. Either way, take a deep breath and enjoy each session.
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05-02-2024, 12:21 PM | #33 | |
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FYI: I was at BMW Performance Center West (BMW-speak for Thermal, Calif.) two weeks ago and was told that all the M3s and M4s they now use have carbon-ceramic brakes (and that they still are replaced twice during the year that a car is used there). Beating this topic to death: I used to attend events where infrared 'guns' (hand-held, non-contact temperature measuring units) were used to determine if brakes were getting too hot. I have not seen that done recently, but those 'guns' are cheap on Amazon and there may even be cell phone apps for this now.
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05-02-2024, 01:28 PM | #34 | |
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05-02-2024, 02:39 PM | #35 | |
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05-03-2024, 01:49 AM | #36 | |
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Don't forget to remove the cover of your brake ducts in the wheel well liner!
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05-03-2024, 08:19 AM | #37 | |
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If you're not replacing wheels a some part in a day, you don't even need a torque wrench. For the wheel bolt torque, you only need a way to check if any are noticeably loose when they've cooled off.
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05-03-2024, 08:27 AM | #38 | |
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You don't see the infrared temperature sensors often because it's not exactly actionable data. Most people don't know the limits of their braking system as far as temperature limits for various components because that information isn't typically published. The two outcomes of someone seeing an arbitrarily chosen high temperature measurement is to either add cool down laps in the middle of a session or add extra cooling for the brakes, likely after the event. Both are good options to do no matter what.
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05-03-2024, 09:52 PM | #39 |
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I've done a lot of work to my car that isn't necessary for a casual track event. I pretty much agree with others about something like high temp brake fluid though. It's inexpensive and a bit of a no-brainer.
With that said, here's my contribution... my track prep list (before/during/after): Day Before:
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05-04-2024, 04:57 PM | #40 | |
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I like to put the numbers on the night before. That way, road grime on the drive there doesn't interfere with the adhesive. If it's a multi day, I bring waterless car wash or detail spray to clean the car where the numbers go. Speaking of, don't forget the Spray Way for the windows and a bunch of microfiber towels. Other things I didn't see in your packing list that I like to bring: Cordless Air Compressor - Amazon Small Quickshade for 1-3 people - Amazon - Smaller than an easy-up, but good for 1 to 3 people. It takes up half the space in your trunk. Canopy Chair - Amazon - When you don't have room for the Quickshade but still don't want to bake. Aluminum Racers Tape - Amazon - I like to tape my wheel weights just in case. As far as Torquing the Wheels before each session, I would be careful not to overtighten hot wheels.
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05-04-2024, 06:57 PM | #41 | |
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I always have an air compressor in my trunk so I don't have it on the list. But, that should definitely be on the list as a reminder! I do have a chair and chair umbrella (two pieces instead of an integrated unit) on the list, but a small canopy might not be a bad addition to my stable. The one I have now is too large to fit with everything else in my car, but a smaller one like you mention might be perfect. I like the tape idea as well! And I'm definitely adding the Spray Way to the list and post session checklist. Last time at Buttonwillow the windshield got pretty bad after two days. Not to mention the tire booger that slapped across the windshield, leaving a huge black streak right in the middle of my view. Regarding torquing the lug nuts, I'll only do it just before a session, after everything has cooled off. I definitely don't do it while the wheels are hot. Are you using the reusable number plates? Right now I'm running the one-time use and they definitely don't care about any grime that occurred on the way to the track. But, I can see where a reusable set could be problematic.
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05-10-2024, 09:24 AM | #42 |
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I have been using reusable vinyl numbers ever since I got my first G82. The reason being that the doors on these cars are made of aluminum. I had to retire my trusty magnetic numbers after years of use so I gave them to a friend, and I still see him using them from time to time.
Reusable vinyl stands up very well if you are careful when putting them on and taking them off. They also clean up easily. I have left them on for over a week in between weekend events, and they are still easy to remove. The trick is to catch an edge with something soft like a fingernail if you have them and then peel from there. I have used these for about 20-30 times, and they still have life. The best place for numbers and graphics of all kinds is "FireStorm Graphics".
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05-10-2024, 05:05 PM | #43 | |
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Today, 01:17 AM | #44 |
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How much fluid are you using in each replacement?
My brake (Cobalts pads, Motul RBF 600) overheated at the last track day. I think the right thing to do is to fully replace the fluid, isnt it?. I read above someone saying $20, but this would barely cover one bottle. The shop where I did the pad installation and fluid replacement used 3 bottles. |
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