10-06-2021, 11:50 AM | #23 | ||
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All in all though - definitely a solid stock cooling system. Even getting some higher temps I was very happy with it. The paces we were running would make the stock E92 M3 and N55 M2 system surrender on the outlaps.
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10-07-2021, 02:29 PM | #24 |
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Thinking I may opt for the 9660 kit! I've seen plenty of good reviews and the kit looks like a solid and well built setup. Probably the best next upgrade for track weekend performance, aside from roll cage, race seat, etc or aero mods at this point.
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10-07-2021, 06:50 PM | #25 | |
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Thrust arm monoballs. Just get the ones that are pre-installed. No alignment needed. https://www.turnermotorsport.com/p-4...nstalled-arms/ Also, change DCT fluid to redline DTC fluid and overfill by up to 1 quart. I just jacked up car and pumped as fast as I could and stuck the drain plug back on when refilling. Shifts "cleaner", but noticeable on track for me.
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10-08-2021, 08:22 AM | #26 | |
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Yep I remember - black M with the roll cage. Appreciate the insight. Will definitely look into those thrust arm monoballs. I have been wanting to further upgrade the front setup as it seems the overall design places different parts in a constant bind if that makes sense. Appreciate the advice on the DCT also - I've been thinking with the number of laps I have put this car through, it's gotta need it. When the dealer told me it was all good, I was a little surprised |
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10-08-2021, 10:40 AM | #27 | |
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10-08-2021, 11:29 AM | #28 | |
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10-08-2021, 12:35 PM | #29 | ||
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You're doing yourself a major disservice with 9660. Strongly encourage the investment for the endurance pad kits mentioned above.
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10-08-2021, 01:22 PM | #30 | |
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https://www.fcpeuro.com/products/bmw...er-28107842840
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10-08-2021, 02:26 PM | #31 | |
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Either are a massive improvement over stock, massive indeed. One is more massive than the other, but both are good for sure I've wondered if I had sniffed too much CO from catless track cars and why I had issues with a kit that other people are happy with. Fortunately, earlier this year a AP kit guy who is faster than me came to the same tracks and then sent their data afterwards. Looking at the speed graphs all my questions were answered, as I'm putting *way* more energy into the braking system per lap than he is. One day when I have some time to burn I'll post up the data. |
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10-08-2021, 02:36 PM | #32 | |
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10-08-2021, 02:50 PM | #33 |
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AP says the 9668 isn't totally necessary unless endurance racing - so not sure if really needed, though may be more desired if/when I resale
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10-08-2021, 03:38 PM | #34 | |
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The 18mm pad will also wear much faster and transmit more heat into the caliper. The 9660 is definitely the lighter option but again you're doing yourself a disservice to ongoing consumable costs.
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10-08-2021, 03:51 PM | #35 | |
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10-08-2021, 03:52 PM | #36 |
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I debated this as well and ultimately went with the thicker pad option and have no regrets. The pads hardly taper and can literally be used down to the backing plates.
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10-08-2021, 04:07 PM | #37 | |
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Once again - appreciate all of the feedback. Sometimes you start a thread and it gets derailed with off topic subjects or simply don't find anyone interested or with experience. This one has been helpful |
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10-08-2021, 04:11 PM | #38 | |
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10-08-2021, 04:17 PM | #39 |
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10-08-2021, 04:24 PM | #40 | |
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I am migrating to the 331 PFC compound but every time I touch the brakes in town I regret it |
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10-08-2021, 05:10 PM | #41 | |
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I think I remember you saying the AP rotors wear quickly. Is that still the case from your knowledge or have they improved? I read your comments in another thread about pairing girodiscs with the AP calipers as well so just wondering what the current situation with AP j hooks is based on your knowledge. Thanks for any info. |
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10-08-2021, 05:30 PM | #42 | |
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I'm on Alcon now, they are great. The issues I had with the AP is pad taper unbecoming of a top tier BBK as well as poor rotor life. They say they've improved rotor life and that may be true. I did not stick around to find out. What I meant earlier is I meet people with APs who are happy, but they are not using the kit to its potential so their happiness doesn't mean much. In an instance this year, a time trialer here in the forum who is faster than me and is happy with his APs came over and we exchanged data. His car is lightened, has similar power and also aero. This means top speed is significantly lower than me, whereas minimum speed thanks to aero is significantly faster. When you look at the speed traces it is a dramatic difference. So my conclusion is I am not going crazy. When it comes to braking performance, people faster than me are putting significantly less energy into the brakes than I am because they are lightened and run massive aero. To put it another way, the people happy with AP put much less heat into them and say they perform flawlessly. I put much more heat into PFC, AP and Alcon and only the APs have issues. As alcon and ap cost the same, it's an easy choice in favor of Alcon
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10-08-2021, 07:43 PM | #43 | |
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10-19-2021, 11:12 PM | #44 |
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I am on the newly redesigned set of Essex/AP Rotors.
So far, yes, they seem to last longer. But only about 50% longer. My first set of rotors (old design) lasted about 5 track days, the same as my pads (3 of those at Watkins though which is notoriously hard on brakes with the 2 long straightaways). One of my pads actually partially broke and sheered off during the last session of the day even due to the heat buildup. I didn't even notice it until I got home the next day. I have now finished about 7 track days with the new redesign. Swapped out my pads once mid-event after 4.5 days, but the rotors are starting to look cooked again. My fingernail is starting to get stuck in the cracks, which is when they say you should swap them. So we're looking at around a 50% increased life with the redesign, roughly. The performance of the kit has been great. However, with the cost of the Ferodo 3.12s, and the rotors, it's not a cheap kit to run. This is a front-heavy car as is, and I always knew I'd be burning through consumables... but not at this rate. I plan on contacting bimmerworld before next season to try to figure out which Girodisc would work for these like their GT4 teams are using. I'll report back. |
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