04-01-2024, 05:50 PM | #1 |
Drives: '22 2SS 1LE Join Date: Nov 2023
Location: NorCal
Posts: 111
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sticky tires & PTM - building bad habits as a novice?
I'm new to track *driving* (done plenty of sportbike trackdays in Advanced grp and raced Motocross). I've been running Supercar 3R (good deal on them used) and running in Sport 1 on track. I do run Competition mode in autocross and am trying to learn car control in AutoX and translate it to the track, though you're a gear higher and slides are obviously harder to catch.
I hate Sport 1, because low-end power is noticeably down and it feels videogamey on corner exit. These tires, when fully warmed, are insanely grippy which seems like a great way to cover up sub-par technique, but I also don't want to bin the car. I'm generally not at the limit of front grip with 285s as of now, and I'm about 10 seconds off the ideal time on a 2min course (sonoma). the question is, would i be better off as a newer driver on an 200TW endurance tire, and if so, should i also just "start over" in PTM Race and completely discard any care about actual lap times for awhile? or should i continue with Sport 1 and maybe 2 for awhile, but on different tires. Or keep SC3R and run PTM Race? I want to build good habits, but I also want to avoid learning the hard way as much as possible. Hope this all makes sense and thanks in advance! 2.9/2 camber, yyz springs, vorshlag plates, SPL rods Last edited by FactoryMatt; 04-01-2024 at 06:03 PM. |
04-01-2024, 06:15 PM | #2 |
aka BeastZL1
Drives: 2019 Camaro ZL1 1LE, 2004 Cobra Join Date: Dec 2017
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It's not about lap times as much as your ability to control oversteer and not cause snap oversteer jumping out of the throttle. Stability control wants to make the car go straight, even if you don't want to go straight. It can effectively negate your steering inputs. It can also overheat the rear brakes on track.
I would suggest running in Sport 2 which disables stability control, but maintains a familiar level of traction control. After you are comfortable, switch to PTM Race and concentrate on smooth throttle application on corner exit. Be ready to breathe off the throttle and steering inputs if you accidentally exceed the limits. The best advice is "be smooth." It will be faster and safer in the long run. I usually put my car in Track Sport 2 for street driving, because I trust myself more than stabiltrak.
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04-01-2024, 07:09 PM | #3 |
Drives: 2004 BMW 330CI, 2022 1SS 1LE Join Date: Dec 2021
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I would use regular Supercar 3 tires if you're 10 seconds off the pace, just from an economy standpoint, the non R tires last much longer. You can build good habits with any tire, if you don't care about spending money then you can keep using the R tires. I think sport 2 is fine to use, just be careful with those R tires on your first lap, especially the first 3 corners or so, they are slippery.
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04-01-2024, 07:52 PM | #4 |
Drives: 2020 SS 1LE Join Date: Aug 2020
Location: NorCal
Posts: 659
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Hey Matt!
Good to see you on here! Anyway, I agree with above. Don't waste your money on grippier tires yet. The SC3 are only a few seconds off pace when compared the R. I think you're better off keeping with standard 200TW tires for now. 1) They're cheaper 2) they last 1.5-2x longer and 3) they're better matched for the stock pads. |
04-01-2024, 08:13 PM | #5 | ||
Drives: '22 2SS 1LE Join Date: Nov 2023
Location: NorCal
Posts: 111
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Quote:
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was gonna give the conti ECF a try in 295/315-19, and keep stock tire OD spread, but i could go 295/30 305/30 SC3. the grassroots tire chart claims ECFs wear and deal with heat a little better, but might be slower than SC3? also running EBC SR11 pads now F&R and the initial torque curve is pretty insane compared to stock. still getting used to that too.. Thanks for the input! |
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04-01-2024, 09:58 PM | #6 |
Drives: 2021 2SS 1LE Join Date: Aug 2020
Location: Cary, NC
Posts: 807
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I think you'd be better off with SC3s and stock brake pads.
Focus on learning to drive the track well with good habits and smoothness, both of which are completely doable with the OEM equipment. More sticky tires will cover up mistakes while also providing less warning of when you are about to exceed their grip. And more aggressive brakes will make it difficult to learn trail braking (I like the greater pedal travel with OEM pads for that reason). |
04-02-2024, 08:34 AM | #7 |
Drives: Cadillac ATS-V Join Date: Feb 2023
Location: New Albany, IN
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ECFs last forever (I retired the first set on my ATS-V after something like 35 sessions and they still had plenty of life left on them) but their outright pace will be a bit less than a SC3.
The ECF doesn't need much warmup, is very consistent across a long session even on a hot track, and wears like iron...a great HPDE tire, especially considering cost per session. For pad compound comparison's sake, ECFs are just fine but nearing their limits with G-Loc R12/R10 pads on my ATS-V while R16/R12 are a bit aggressive for them.
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04-02-2024, 06:55 PM | #8 | |
Drives: '22 2SS 1LE Join Date: Nov 2023
Location: NorCal
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Quote:
No experience with GLoc, but these sr11 are supposed to be medium torque endurance pads idk. |
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04-03-2024, 12:21 PM | #9 |
Drives: Cadillac ATS-V Join Date: Feb 2023
Location: New Albany, IN
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One dude on Bimmerpost thinks the ECF has swiss cheese sidewalls...that hasn't been my experience.
I've found I get a little rollover on the first lap or two if I'm 29psi or less and overdriving, but once they're to 32 or so they're golden. I did find 34-35 to be the happy place, above 37 they get a little greasy but its predictable.
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2018 Cadillac ATS-V Sedan
NCM*Putnam Park*Mid-Ohio*Gingerman*Road Atlanta*Barber Last edited by BoilerUP; 04-03-2024 at 01:03 PM. |
04-03-2024, 06:33 PM | #10 |
Drives: 2021 1SS 1LE Join Date: Nov 2020
Location: 98548
Posts: 614
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For context… my best lap “stock” (brake fluid, brake pads and track alignment, stock wheels and tires) was only 3 seconds slower than my best fully developed setup. (DSSV, swaybars, square 3Rs, etc) My best stock lap time was in Race PTM and my best developed was with all the nannies off.
My .02 is leave it as stock with good pads and fluid, leave it in Race PTM and work on your driving. Ken
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04-03-2024, 08:49 PM | #11 |
Drives: 2020 ZL1 1LE Join Date: Sep 2012
Location: Austin, Texas
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Stay with the GY SC3s and stock pads until until you are *certain* you have maxed that combo. You'll know what I am talking about when that happens. Essentially (as you are learning some now) you will be held back only if you get to be an expert within each of the stock modes. Work up all the way to Race mode. The car's modes were designed for that tire/brake combo all the way to expert - meaning you can drive it with full throttle and the system will keep you on the line *if* you have the car within expectations for that level.
Learn to brake late and maximize your on throttle/on brake points. If coasting or maintenance throttle (with *very* few exceptions) you have more to learn. With the SS 1LE and SC3s you should be about even with well driven Porsche 718s (not GT4s) and 2/3 Series BMWs. In the meantime target your hot pressures. You'll need to air up then down 1-3psi on days with cold mornings and hot afternoons. Edit: yes use lap times to tune and measure progress. You'll have to correct for traffic. Try starting out after most have left the grid or come in to the pits if stuck in a pack.
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2020 ZL1 1LE [Moroso SC Expansion Tank, otherwise stock]
Last edited by wakespeak; 04-03-2024 at 09:02 PM. |
04-03-2024, 08:57 PM | #12 | |
Drives: '22 2SS 1LE Join Date: Nov 2023
Location: NorCal
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Gonna run ECFs and these endurance pads just to help with longevity and consistency, but i hear you on stock. looking more for predictability and longevity than outright performance. |
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04-03-2024, 09:48 PM | #13 | |
Drives: 2020 ZL1 1LE Join Date: Sep 2012
Location: Austin, Texas
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Quote:
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04-03-2024, 10:11 PM | #14 | |
Drives: 2004 BMW 330CI, 2022 1SS 1LE Join Date: Dec 2021
Location: NC
Posts: 754
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Quote:
Having said that I never had the car snap on me when I used to use race mode or sport 2. But the car feels more predictable to me while sliding around with everything off. |
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