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Definitely not the ideal day, but good for learning throttle control! https://live.staticflickr.com/65535/...9d909c38_b.jpg |
Update: Had to cancel my HPDE plans at The Ridge and Area 27. I have some professional obligations to tend to during May. :okay: |
Find an event mid summer on a sat or sun, and il join :D |
First track day with the S2000 at Mission, I am very n00b at manual performance driving, kept on forgetting to upshift or downshift. Not terrible, but more practice needed. The TPS channel didn't work for some reason even though I got it to calibrate. Was great doing it in a 101 environment where it wasn't as pressurized and had an instructor sitting in the right seat coaching me. Lesson also learned that Mission is really hard on S2K rear brakes - ran through half-depth pads in 2.5 sessions of 7-8/10 driving, necessitating an emergency trackside pad change lol. Car did really great otherwise, it's the driver that needs work. My manual skills are very bad, you can see me hesitating to shift or having problems letting out the clutch smoothly enough. |
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Photographer posted pics, a couple of cool ones: Getting a point by https://i.ibb.co/q7qhGH1/IMG-5322.jpg -3deg camber working out great on track https://i.ibb.co/2SVGDqy/IMG-5258.jpg |
Looks like you were having fun and a great looking car! One thing to keep in mind is that it is actually harder than you think on the brakes to brake less hard, and for longer. If the G meter in your video is accurate, you are braking at 0.3-0.4G with maybe peaks of 0.5G. That's definitely less than half of what I expect a modern street car with ABS can achieve on a dry day in a straight line such as coming into turn 1. If you use the brakes harder for less time, you'll actually put less heat into them. (Mission is killer on brakes regardless, but this is still good practice). To achieve a margin of safety, you should still be braking basically as hard as you can, but just earlier, and let off the brakes earlier and roll into the corner. For example - if you figure you can brake at the 3 marker in the best possible case scenario, then brake at 4 or 4.5, and as you get to your desired speed, get off the brakes and roll into the turn. Then, as you get more and more comfortable, move the braking point from 4.5 to 4, then to 3.5 and so-on. Cheers, Mark Quote:
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^ What he said. I was helping a new driver a few years back and they were cooking their brakes every session. Turns out they were dragging their brakes into every corner, and applying 20% pressure instead of braking hard and fast.\ Modern traction/stability control also likes to grab the rear brakes once it detects something it doesn't like. BMW and Mazda has very active control systems (for very different tuning methods), I'm not sure how active the system is on a S2000. |
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What you were saying was what Norm was saying to me as well, he was my instructor for the day. Definitely something to work on, instead of braking more gradually. For me it was a challenge to integrate new car + new tires + new type of transmission into something resembling a coherent mess, and something that I definitely need to work on by adding more seat time. Quote:
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My Go-Pro didn't Cooperate so someone else's will do for a chase video https://scontent-sea1-1.xx.fbcdn.net...Vw&oe=661A4510 |
Auto-X + rain + 400hp = no bueno Il stick to HPDE days in cars over 250hp https://live.staticflickr.com/65535/...86981eb0_b.jpg |
Well.. I got back out there. This is some really sloppy driving. For context it was the last lap and last session of the day, but somehow I got a PB. First 3 sessions of getting back out there since the Ebisu jump was rough. Turn 3 and Ebisu gives me the most trouble/PTSD. By the time I got comfortable again, it was reaching 12 degrees. Not necessarily overheating conditions for stock FK8s, but on a tuned one (with stock cooling) I was kind of concerned. Fortunately, it only got up to around the temperature symbol (~60%) and came right back down and stayed down following 1/2 or less of a cooldown lap. Tires felt great in the afternoon sessions once the hot PSI got to where I wanted it to be, which I didn't touch or monitor it further. I think the RE71RS are like the CRS/RT660. They suck on the first track day but are amazing once broken in. The tune was hilarious on this track, but a little boring, I pretty much stayed in 3rd the entire time. If anything, the DTC60s that I upgraded to (from CCRGs, PMU CRs) are amazing. I didn't realize how much a difference my confidence in the car would be with just good pads. Edit - a weird phenomenon that I noticed. I spent a lot of time at Axon (simulators), specifically VIMC + the FL5 (super oversteery) to prepare myself for this event, especially the fear of T3/Ebisu with what happened last time. When I was on track, I noticed that things that I practiced on the sim was actually applied to real life. Things like, brake points. VIMC took out the physical brake markers, but I could still "see" them based on the hours on the sim. I learned to stop death gripping the steering wheel, since on the sim, you would break your wrist. This allowed me to feel my car get loose through the steering wheel, and apply counter steer as necessary. Even the simplest thing, the very uncomfortable idea of transitioning off the brake and on the gas, while you're about to enter a corner, was made easier with the sim. The only thing the sim didn't help with was how absolutely terrifying T3 and Ebisu are. Edit 2: Video resync'd due to variance between data overlay and video |
Thanks for sharing, and good on you for getting back out there! Curious what your overall experience was from the Endless CC-RGs and PMU Crs to DTC60s are. I'm reading club racing forums that the DTC60s are all the rage these days but nobody really has anything to compare with other than some type of Pagid pads. For context as to why I'm asking is because I'm still running on factory pads. |
Oh man there's gonna be quite a bit to unpack. In the order of best performance to worst: 1. DTC60 To be honest, I went with this because of its availability on FCPEuro and while the DTC60 supposedly eats rotors, I don't do enough track days for that to be a concern. And the cost of rotors would be offset by being able to warranty the pads. I didn't expect how much better of a driver I could be by using pads that actually stop the car. I thought the Endless CC-RG was pretty good at slowing down the car, but man the DTC60 blew it out of the water. I was able to do back to back laps without having to worry about anything. This is the first time in a long time of not having to do cooldown laps, though the cooler weather helped for sure. The wear rate of the pad was quite high, likely due to me not doing CD laps. It wore about 50% after 6 x 15min sessions at VIMC. I'm not concerned about wear rate as I will warranty the pads. Scale: 6 hot, 0 cool or 5 hot, 1 cool lol. 2. Endless CC-RG Definitely one of my favorite dual-duty pads. Low noise, takes heat pretty decently, best bite that I've tried, but it warps rotors. I've warped EBC blanks, and 2x OEM drilled. The pad lasts pretty long, but I basically warp a pair of rotors every track day. Scale: 2 hot, 2 cool 3. Project Mu Club Racer I probably have a few used sets of these cause this is the popular upgrade to the OEMs. Many people run this pad. Personally, I don't love it. It feels like a better Hawk HP+, but it retains the negatives - strong bite but loud squeal and doesn't really stop the car. Scale: 1 hot, 1 cool. 4. OEM (rumored to be Ferodo DS2500) I swapped onto these during lunch at Mission and got back out there to set a baseline. It has way more stopping power than the Powerstop pads, but bite needs work. Scale: 1 hot laps, 2 cool down. 5. Hawk HP+ I only really had these cause I gave a set of my spare PMU CRs to my friend so we can both make the track day. I used it once for one session at VIMC as the pads were too thin and overheated quite quickly. Good bite, doesn't stop. Scale: N/A. 1 hot 4 cool. 6. Powerstop Track Day - It blows up LOL. Well user error and I should have gotten Track Day Spec but it also shouldn't have blown up in one single session. - Think of these as a budget (BAD) Hawk HP+ Scale: N/A DNF. |
Oooh I love brake talk because I am terrible at braking. I was recommended to run DTC60 on my F80 as well. I was wary about how much it would chew up the rotors and not being a street friendly pad and I really wasn't a fan of swapping pads back and forth. I ended up picking EBC Bluestuff all around for a dual purpose pad. The Bluestuff blows the OEM BMW pad out of the water, but it still doesn't give me the confidence under braking like I had with my mixed F/R pad MS3. On a warm track day at Mission I ate through probably 1/3 - 1/2 of the pad. I wasn't the most happy, but I was doing quicker times than I ever had and keeping up with the quickest street cars. With the OEM pads, I was on worn and heat cycled PSS and I was still overheating the pads after 3 hot laps (1:25-27ish). With the Bluestuff it was 1.5 laps to warmup my tires and the brakes could last most of the session. Things start to drop off at the end of the session though when the ambient temperature gets hot (1:18-19). One thing I found out recently is that BMW electronics does this brake preload thing which causes the brakes to be inconsistent and varies every time how it stops. I've got it coded out now but I haven't had a chance to try it out. Some ppl say it's a game changer even on the street but I frankly don't feel like difference is huge on the street as I'm not going all FnF everywhere. Still waiting to hit the track this year but I might not have the time to do it. |
I'm still iffy about running track pads on the street, but that's just me. My home track isn't brake intensive so I'm okay on stock pads and rotors given my vehicle and skill level. Need to get faster. :troll: |
Ooo track pad talk. Got a set of G-Loc (aka Carbotech) R8 for front and back, will report back once installed and tracked. The way your car’s brake balance is set up probably plays a big part of it too. TIL that S2000s chews up rear pads |
FWIW, I would have stayed with OEM pads, if I had a brand new set. But I didn't so I went with DTC-60. I imagine brake bias would be a little bit messed up - DTC60 in front, PMU CR in the rear. I swap back and forth between my street and track pads though. Pretty easy to do, part of my pre/post track work. |
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I went with a more aggressive rear pad and it turned out great for Mission. I could really throw down the anchors and feel the rear brakes working for once. |
Re: Bluestuff - for clarification: This is the Hawk rear pad, correct? |
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Hawk Blue aka Hawk 9012 is the one you're thinking of |
Got to shakedown the Turbo M last weekend. Decently surprised how well it did when I can be only run on my old ECS. |
How often are you guys changing oil, rear diff, and trans fluids? |
This is just me, so your mileage may vary. Engine oil - once a year. [Edit] I should note that I drive the Boxster less than 5000km per year and track weekends were two days a month from May to October. Transmission fluid - as per factory service interval (aka every few years or if I need to drop my gearbox.) Brake Fluid - My home track is not brake intensive, so I don't cook my brake fluid. Otherwise, once every two years as a preventative measure. Diff - not applicable Is this too little? Or too much? When my engine blows, I'll let you know. But there are some guys in the local BMW and Porsche club who change their oils after every track event. |
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